Home

Owners Manual

1. Operation via data DOT daa 37 Data POFE CONAGCHONS spiata ao todo dal ol dd o i i ila o o dd he 37 Baud rates amp serial port settings ii 37 Handshakes ta ees sae altace a sdceeit asset ecnc ates sora sense soe eaeanass sate eie ee aeenees eso Gree 37 USB UVR ao 38 Communication commands sc ita 42 CoboltiMonitor softwareribainiiiieania paella 44 Cobolt Monitor for MLD 3X X X i Fel Bokm rket r inte definierat Cobolt Monitor for DPL 4X XX ii Fel Bokm rket r inte definierat Fiber pigtailed option Cobolt MLD 06 03 occccccccccocococococococacacacacananrorarararararananananananrnrarararncaranananananes 48 TEO ESOO UNA oa 50 Warranty and maintenante ia A A latita 51 O 51 DPI LS AR SARAS SETS Bee ART STINA RT NUR SARA RT ll ioni SAN RIAA IRA 51 NV A aa 51 Declaration of Conformity CDRH modes Only sssssssrssessrsrsrsrsrsrsrnnrs rn enn rn Rn RRD RR RR RSKR RR RR KRK RER RR RR RR RR nn 52 DISC AMS a e ln el lle le NS 52 Cobolt 06 01 Series Cobolt 06 01 Series 1 Introduction The 06 01 Series lasers offer a compact form factor and a wide wavelength span in a plug and play format The 06 01 Series utilizes the most ideal laser technology to achieve the wavelength while maintaining the same form factor The two types of lasers in the series are the Cobolt MLD Modulated Laser Diode and Cobolt DPL Diode Pumped Lasers Cobolt MLD lasers are visible wavelength direct semiconductor d
2. the ON LED is illuminated Closedown operation 1 de CDRH model Turn the key to the OFF position Disconnect PSU from mains outlet Disconnect Laser Head from PSU CDRH model Disconnect Laser Head from Control Box only required for shipping 6 1 2 DPL When delivered DPL lasers are by default set in constant power mode As soon as power is supplied to the Laser Head the auto start procedure will begin Light will be emitted once the interlock is connected the shutter is open and when the key is turned to the ON position CDRH model Start up operation li Mount the Laser Head on a suitable heat sink see section 3 5 CDRH model Insert the interlock into the control box 32 Cobolt 06 01 Series 3 OEM model Insert the interlock into the laser head 4 Apply 5 VDC to the power supply connector on the laser head 5 CDRH model Turn key switch to start the laser 6 CDRH model Once the TECs have stabilized the ON LED is illuminated 7 The laser starts light is emitted The power and wavelength may continue to drift for up to 3 minutes while the thermoelectric coolers TECs stabilize Closedown operation 1 CDRH model Turn the key to the OFF position 2 Disconnect PSU from mains outlet 3 Disconnect Laser Head from PSU 6 2 Continuous wave 6 2 1 MLD The laser has two continuous wave operating modes constant power and constant current The default mode for Cobolt MLD lasers when sh
3. 0 G CO bolt M N 0561 06 81 0050 200 S N 7893 Operation 104 89 h gth 561 nm CI Cobolt Monitor Enable Running Drive Set Temp C Temp C Fault z 2 29 00 29 01 None COM8 9 34 00 34 00 None LED status Power On Laser On Laser OFF n Autostart Program Laser Lock Error o Constant Power mw Power 51 8 mw Autostart Enabled Key Switch laser Power SUR Constant Current 2000 0 m Current 2420 0 m Direct Input 5V Autostart Mode Off Waiting for Temp Set Warm Up Current 000 0 m Set Warm Time Laser On Laser Lock Error D Cobolt Monitor with a second GUI layer expander reveling a more detailed monitoring of a DPL Here the sections within the Cobolt Monitor More window is described TEC Settings shows the running status and the fault status for the laser s internal thermoelectric coolers TEC DPL models have three TECs and MLDs have one TEC Only the activated model specific TEC s are displayed Laser Operation Mode and Settings displays the set laser power The user can switch between constant power mode constant current mode and modulation mode MLD only Likewise there are boxes to set the constant power level and constant current level The output power measured on an internal photodiode and the current through the laser pump diode are both displayed Autostart Program displays whether the laser is in LAB or OEM mode and displays the current las
4. The resonators are stabilized with a curved mirror which provides a beam with excellent mode quality The laser beam is expanded in a telescope The residual IR radiation from the pump diode and the DPSS laser is contained within Cobolt 06 01 Series the laser housing by filtering optics The control electronics boards are integrated into the laser head assembly The laser assembly is equipped with elements for temperature control of the cavity and pump diode The laser also features an optical feed back loop which ensures long term power stability of the emitted visual beam The Laser Head features a manual mechanical shutter as well as a laser hazard label and a laser classification label The Laser Head can take electrical power from the power jack The mini USB is used to communicate with the laser In addition the Laser Head supplies a Molex 6 pin connection of which the pin 1 and pin 2 are used for the interlock See section 5 5 for further information on connector pin out 3 4 Control Box 3 4 1 MLD The optional Control Box allows the user to operate the laser with a CDRH compliant key switch It also provides direct connections for analog modulation and on off modulation The Control Box has LEDs to indicate the laser status When power is supplied to the Laser Head regardless of on off or key switch state the temperature control elements will be active to reach set point values The status of the laser operation is given via LE
5. lock on the socket DPL model OV Ground i Molex 6 pin Interlock Mini USB Pin6 Pin4 Pin 2 Pin5 Pin3 Pin 1 Molex socket on the DPL laser head Pin 11 Pin 7 Pin 5 Molex 6 pin connector Pin 2 Pin Pin Molex socket on the DPL control box 31 Cobolt 06 01 Series 6 Operations instructions 6 1 Start up procedure 6 1 1 MLD When delivered MLD lasers are by default set to continuous wave constant current mode As soon as power is supplied to the Laser Head the auto start procedure will begin Light will be emitted once the interlock is connected the shutter is open and when the key is turned to the ON position CDRH model Start up operation If you have the CDRH model see the quick start guide section 4 for a pictorial guide to connecting up the laser The procedure for starting the laser is given below Lc 2 Mount the Laser Head on a suitable heat sink see section 3 5 Insert the interlock into the Laser Head CDRH model Connect the laser to the Control Box using the 15 pin D SUB cable Apply 5V DC to either the power supply connector or the appropriate pins on the laser s D SUB see pin assignment in section 5 4 CDRH model The POWER LED is illuminated CDRH model Turn key switch to start the laser The laser starts light is emitted The power and wavelength may continue to drift for up to 3 minutes while the thermoelectric cooler TEC stabilizes CDRH model
6. of optical density OD for each product line Product Nominal Output Power mW Irradiance W cm2 Eye protection Requirement Cobolt MLD 405 nm 250 97 gt OD 4 Cobolt MLD 445 nm 80 31 gt OD 4 Cobolt MLD 473 nm 100 39 gt OD 4 Cobolt MLD 488 nm 200 78 gt OD 4 Cobolt MLD 515 nm 60 23 gt OD 3 Cobolt DPL 532 nm 200 78 gt OD 3 Cobolt DPL 561 nm 100 39 gt OD 3 Cobolt MLD 633 nm 80 31 gt OD 3 Cobolt MLD 638 nm 140 54 gt OD 3 Cobolt MLD 647 nm 120 47 gt OD 3 Cobolt MLD 660 nm 100 39 gt OD 3 MLD modulated laser diode DPL diode pumped laser Irradiance W cm2 110 of Nominal Power W Beam Area at bottom tolerance cm2 Eye protection OD Logio Max Power W 60825 1 Emission Limit Class 7 W rounded up to the next integer 2 1 1 Fiber pigtailed 06 03 Based on 60825 1 Laser Safety standard the accessible emission from any laser must be considered at a viewing distance of 100mm At that distance the beam diameter of a divergent beam exiting from a fiber pigtailed laser will always be greater than the Beam Area at bottom tolerance cm2 of the collimated beam used in the calculations above therefore the irradiance W cm will also be lower CAUTION use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure Cobolt 06 01 Series 2 2 Safety features Interlock The laser i
7. photonics com br France Optoprim Phone 33 1 4190 6180 Fax 33 1 4190 6189 www optoprim com India Dynotech Instruments Pvt Ltd Phone 91 124 4086513 16 Fax 91 124 2331653 www dynotech in Japan Kantum Electronics Co Ltd Phone 81 3 37581113 Fax 81 3 37588066 www kantum co jp Russia amp Belarus Azimuth Photonics Phone 7 495 792 39 88 Fax 7 495 958 23 09 www azimp ru Spain amp Portugal Laser Technology SI Phone 34 93 750 0121 Fax 34 93 750 0323 www laser technology com USA Canada amp Mexico Cobolt Inc Phone 1 408 708 4351 Fax 1 408 490 2774 www coboltinc com Contact rmation
8. sold with a mono plug that allows the interlock 5 3 1 MLD The MLD interlock is a 2 5 mm female stereo TRS audio socket The ring and sleeve see figure must be connected for the laser to operate The interlock should not be used as a modulation switch The on off modulation feature is designed for this purpose Interlock connector To use the interlock with an external switch connect a stereo plug instead After the interlock has been opened the laser will need to be reset before it can be used again After closing the interlock turn the key to the OFF position and back ON again CDRH model only This can also be achieved with the command cob1 When the interlock signal is disconnected from the system ground OV the laser diode switches off After closing the Interlock again to ground the function can be resumed via computer control or by resetting the power supply or key switch CDRH model The signal level is between OV and 5V with a pull up resistor R142 R141 and the current required to ground the interlock is 5 mA The time delay in the hardware is lt 1 ms but after filtering by the firmware the reaction time is extended to lt 20 ms A diagram of the interlock electronics is shown below IL 1 5V 3V3 LASER HEAD i 2 CONNECTOR ssi D141 KEY BOX SR M 7 BAVOOW CONNECTOR dra IAN HDSUB dk i lt IL CONNECTOR er sad l i 1 6 To Processor i 2 10 4k7 oe C142 100n KEY BOX INTERLOCK 06
9. the laser OFF In this case the GUI will automatically close the GUI windows of the laser 46 Cobolt 06 01 Series Clear Fault The user can deal with the cause of the fault and then press Clear Fault and then restart the laser by clicking Laser ON Example if the interlock loop is open the user must make sure the loop is closed again before issuing a Clear Fault followed by Laser On More opens an additional GUI window containing more detailed information of the laser status More of this is described below 4 Cobolt Monitor More File Tools Help Cobolt Monitor Ver 6 0 1 0 E Cobolt M N 0445 06 01 0080 100 S N 445008806 Operation 32 97 h favelength 445 nm gt Cobolt Monitor ol Software Ver 6 0 DEE Enable Running Drive Set Temp C Temp C Fault a 1 25 00 25 00 None COM8 MLD LED status Power On Error 0 Laser Power 81 9 mw Autostart Program Constant Power mv Power 81 9 mw Laser ON Autostart Enabled Constant Current 107 0 m Curent 107 0 m Laser OFF Key Switch Modulation Mode mw On Off Modulation ARENA Mede Digital Impedance 500hm for O Analog 1 kOhm Waiting for Ke On Off Modulation Modulation Power On o Laser On Error oO Cobolt Monitor with a second GUI layer expander reveling a more detailed monitoring of an MLD 47 Cobolt 06 01 Series 4 Cobolt Monitor More File Tools Help Cobolt Monitor Ver 6 0 1
10. 03 Connected to cover and OV power input 27 Cobolt 06 01 Series 5 3 2 DPL In the OEM configuration the DPL interlock is located at pin 1 and 2 of the Molex connector on the back side of the laser head To use the interlock with an external switch connect to pin 1 and 2 of the Molex plug In the CDRH configuration the DPL control box is provided with a 3 5 mm mono plug In order to control the interlock remotely a 3 5 mm stereo plug is required The ring and sleeve see figure must be connected for the laser to operate Bing Pid Pin Molex 6 pin Interlock Mini USB Pin5 Pin3 Pin1 5V DC Molex connector on back side of DPL laser head N Key Switch LED indicators 3 5mm Interlock N Interlock A connector Interlock for DPL control box After the interlock has been opened the laser will need to be reset before it can be used again The signal level is between OV and 5V with a pull up resistor R225 R224 and the current required to ground the interlock is 5 mA The time delay in the hardware is lt 1ms but after filtering by the firmware the reaction time is extended to lt 20ms A diagram of the interlock electronics is shown below 5V 3V3 ___ D222 I BAV99W SOT323 i270 DI 3k9 R227 C221 10k 100n 2 INTERLOCK 28 Cobolt 06 01 Series 5 4 Direct ON OFF Control DPL Only Direct On Off function as described here is only available with DPL models For a similar functio
11. 33 Cobolt 06 01 Series e On off modulation is quick to set up and requires no computer connection It allows for the highest extinction ratio Use this mode if you are modulating at speeds below 500 kHz in a square wave e Digital modulation allows for extremely fast modulation speeds of up to 150 MHz with a rise time of under 2 5 ns Use digital modulation if you are modulating at high speeds in a square wave e Analog modulation is not as fast as digital 2MHz but has the advantage that the user can drive the laser with arbitrary waveforms Use this mode if you require arbitrary pulse shapes These types of modulation can be used simultaneously in any combination to give complicated output shapes such as pulse bursts These combinations are dealt with separately at the end of this section Switching between modes can be done using the Cobolt Monitor MLD software or with RS 232 commands except for on off modulation which is activated automatically when connected The modes are described in detail below On off modulation On off modulation is the simplest modulation mode and can be used out of the box with no connection to a computer It allows the user to completely shut off the diode between pulses giving it a theoretically infinite extinction ratio lt does however have the narrowest bandwidth and slowest switching times of the three modulation modes The on off modulation feature can be accessed via a socket on the control Box CDRH mod
12. Cobolt Owners Manual Model 06 01 Series February 2015 rev 1 51 Cobolt 06 01 Series lasers High performance diode laser modules and diode pumped solid state lasers 405 nm 561 nm 445 nm 633 nm 473 nm 638 nm 488 nm 647 nm 515 nm 660 nm 532 nm Cobolt AB Phone 46 8 54591230 info cobolt se Vretenvagen 13 Fax 46 8 54591231 www cobolt se SE 171 54 Solna Sweden Cobolt 06 01 Series san 10 11 12 13 14 ZA Dd 2 3 2 4 Sali B32 3 3 3 4 dd 3 6 4 1 4 2 5 1 Did ddt 5 4 Dud 6 1 6 2 6 3 Pale Dudo 7 3 7 4 Fade 8 1 8 2 11 2 Cobolt 06 01 Series INtTodU coca di 5 Field 6 Generali ira 6 S TE by TE AUTOS lalla A A ate raat 7 EGUMEN Salte doce ies bledo it 7 Warning and identiticationdabels di a Saa 8 UV ida tas 10 Model OUI Otek ore oat ea as lattice o iio un Nin i 10 COMMGU PATON zo a alici ia 11 ECT An RP a 12 CONTO BO radios 13 TRermalmanag e ment dialisi oa 14 Power Supply requitementS essa di ido NG ER 15 Quick start guide fof CDRH Models nale 15 MED eet haa ates elas Sree a e od o e illa 15 A eet pence top se arene delta snus ene ieee cn ecient eee IEA NER AES AS 17 System descrita 20 SOC der Ye Of OACI PO cicale 20 Dia gra cca 23 HATET IO CK a tt E E E 26 Direct ON OFF Control IDPL ONIY corria ia 28 Rimas SIA NE A AA A AAA ia 29 Operations INStructons soria dira 31 sn REN aaa 3 CORtUNUOUsWave sbuca iii 32 ModWlation cosa bodas dond 32
13. D indicators POWER Green Power is supplied ON Orange Laser emission is on This light is always on in modulation mode if laser emission is possible ERROR Red An error has occurred 3 4 2 DPL The optional Control Box allows the user to operate the laser with a CDRH compliant key switch The Control Box has LEDs to indicate the laser status When power is supplied to the Laser Head regardless of on off or key switch state the temperature control elements will be active to reach set point values The status of the laser operation is given via LED indicators ON Green Laser emission is on ERROR Red An error has occurred Cobolt 06 01 Series 3 5 Thermal management To ensure operation within given specifications and for the warranty to be valid the Laser Head must be attached to a heat sink This value is the difference between the maximum allowed Laser Head base plate temperature 50 C and the maximum specified ambient temperature at the air heatsink interface 40 C divided by the maximum power dissipated from the laser 12W for MLD 20W for DPL The mounting surface should be flat within 0 05 mm over mounting surface Under normal circumstances thermal heat compound is not required however if the laser is operated in an area with a high ambient temperature it is recommended to use a compound between the Laser Head and the heat sink to provide good thermal contact For assistance in thermal management and system integratio
14. a 5 VDC power supply to the Laser Head initiates an automatic start up sequence If the interlock is connected laser emission will start automatically as soon as power is supplied The OEM model consists of e Laser Head e 5V power supply unit e USB Communication cable MLD e Interlock mono jack for short circuiting interlock DPL e Interlock Molex connector for short circuiting interlock Laser Head Only OEM model 3 3 Laser Head 3 3 1 MLD The Laser Head contains the laser diode beam shaping optics a thermoelectric cooler TEC and integrated control electronics boards The laser assembly is also equipped with elements for temperature control of the pump diode and the system contains an optical feed back loop which measures the power of the emitted visual beam The laser systems incorporates beam shaping optics to provide a collimated circular beam of fixed diameter irrespective of wavelength The Laser Head features a manual mechanical shutter as well as a laser hazard label and a laser classification label The Laser Head can take electrical power from either the power jack or 15 pin D SUB connector The D SUB OEM model only and the mini USB can each be used to communicate with the laser In addition the Laser Head features an SMA connector for the digital modulation input and a 2 5mm socket for the interlock 3 3 2 DPL The Laser Head contains diode pumped solid state laser DPSSL with intra cavity frequency doubling
15. alog modulation allows direct control of the laser power by an input signal This allows the laser to be modulated with arbitrary pulse shapes at limited bandwidth To enter analog modulation mode using the Cobolt Monitor MLD software select Modulation Mode and Analog under Modulation Type The input signal should be connected to the Analog BNC connector on the Control Box CDRH model or the dedicated pins on the 15 pin D SUB OEM model The laser is calibrated so that a 1 V input gives 100 of the laser s nominal power level for frequencies above 1 MHz it may be necessary to increase the amplitude of the analog signal up to 1 5 V Note that the laser may give more power if a voltage larger than 1 V is used Although the current is clamped to a safe current limit to prevent damage the user must nevertheless avoid overdriving the diode so that it gives more than the nominal power level specifications and diode lifetime are not guaranteed above the power which is stated on the silver sticker on the Laser Head It is highly recommended that the user measures the input voltage over the Laser Head when setting up analog modulation When the laser is modulated from O to 1 V the current through the laser diode is modulated from slightly above zero to the current that gives the laser s nominal power The laser diode has a threshold current below which no laser light is emitted and above which the optical power is approximately linear with c
16. by Cobolt or if the equipment is not properly grounded Disabling the key switch nullifies the CE marking as this violates the laser safety standard The following harmonized standards are in use Electrical Safety EN 61010 1 IEC 61010 1 UL 61010 1 Laser Safety Class IEC 60825 1 CDRH 21 CFR 1040 10 and 1040 11 EMC IEC 61326 1 EN55011 class A EN61000 4 X where X 2 3 4 5 6 and 11 FCC Part 15 subpart B class A All Cobolt MLD and DPL lasers are RoHS compliant as defined by the EU Directive 2011 65 EU 14 Disclaimers Cobolt will assume no responsibility for damage incurred by faulty customer equipment such as measurement equipment cables etc used in conjunction with Cobolt lasers Cobolt makes no warranty of any kind with regard to the information contained in this guide included but not limited to implied warranties of merchantability and suitability for a particular purpose Cobolt shall not be liable for errors contained herein nor for incidental or consequential damages from the furnishing of this information No part in this manual may be copied reproduced recorded transmitted or translated without the express written permission by Cobolt Ek Cobolt Cobolt AB Vretenv gen 13 SE 171 54 Solna Sweden Australia Warsash Scientific Pty Ltd Phone 61 2 9319 0122 Fax 61 2 9318 2192 www warsash com au China DynaSense Photonics Co Ltd Phone 86 0 10 83503853 Fax 86 0 10 83503622 www dyna s
17. ce No 50 dated June 24 2007 CDRH models shipped to USA Cobolt 06 01 Series 3 Overview 3 1 Model Number The 06 01 Series lasers are sold in two configurations CORH and OEM described below The models numbers are composed as described below 3 1 1 MLD Free Beam XXXX 06 01 XXXX YYY x Wavelength nm Version Power mW Configuration 100 CDRH 200 OEM Fiber Pigtailed XXXX 06 03 XXXX YYY MANN Wavelength nm Power mW Configuration 100 CDRH 200 OEM 3 1 2 DPL XXXX 06 81 XXXX YYY N Wavelength nm Version Power MW Configuration 100 CDRH 200 OEM Cobolt 06 01 Series 3 2 Configuration 3 2 1 CDRH The laser is supplied with a Control Box which must be connected along with the interlock Laser emission starts when the key is turned from the OFF position to the ON position The status of operation can be monitored via LEDs on the Control Box Setting the key to its OFF position puts the laser in stand by mode The CDRH model is CE and CDRH compliant Cobolt 06 01 Series The CDRH model consists of e Laser Head e Control Box Keys e 5V power supply unit e Interlock mono jack for shorting interlock e USB communication cable MLD MLD with Control Box DPL with Control Box e 15 pin D SUB male male cable between laser head and control box DPL e 6 pin Molex cable between laser head and control box 3 2 2 OEM The Laser Head is supplied without the Control Box Connecting
18. ch the 15 pin D SUB cable to the Control Box 4 5 6 Cobolt 06 01 Series Insert the interlock plug into the connector on the Control Box Connect the supplied 5V power supply unit to the socket on the Laser Head and plug it in to the mains To start the laser turn the key on the Control Box clockwise to the ON position If it is already in the ON position turn it to OFF and then ON again Light will be emitted as soon as the key is turned Cobolt 06 01 Series The laser will now start up in continuous wave mode at its nominal maximum power level 4 1 2 Modulation quick start There are three ways of modulating the laser digital analog and on off modulation the simplest of which is the on off modulation feature which requires no data connection to the laser Here is a quick guide to getting on off modulation up and running For a detailed guide to operating the laser in modulation modes see section 6 3 1 Set your signal generator to give a square wave with an amplitude of 5V peak to peak 2 Connect the input from the signal generator to the socket labelled ON OFF MOD on the Control Box via a 3 5 mm stereo plug section 6 3 contains details on wiring the plug 3 When the system is connected to a signal generator it will automatically enter on off modulation mode When an input signal is received the laser will begin modulating 5 V on O V off The peak power is set by default to the laser s nom
19. document 12 Service Due to accuracy tolerances calibration differences and allowed power drift there may be discrepancies between the Cobolt measurement of the optical output power and the customer measurement equipment If the output power deviates from the reported value please contact your local Cobolt representative for an online re calibration If the laser does not function do not attempt to open any of the units or the warranty will be voided Call or e mail your local Cobolt representative for consultancy and to request an RMA number see back cover for contact information If an RMA number is issued and the laser needs to be shipped back to Cobolt or your local representative please pack the complete system for shipment using the original package or equivalent Ensure the unit is free from thermal paste before packing The warranty covers repair or replacing the unit at the option of Cobolt 52 Cobolt 06 01 Series 13 Declaration of Conformity CDRH modes only The CDRH model lasers 100 are designed and manufactured to comply with the EC Low Voltage Directive and the EC EMC Directive in the CDRH compliant configuration of Laser Head Control Box 1m VGA cable MLD or 1m Molex cable DPL and Cobolt supplied power supply All equipment must be mounted on a common ground plane such as an optical table The equipment might not conform to the EC directives if any part of the supplied equipment is replaced with a part not supplied
20. e a problem with the constant power system Contact Cobolt technical support Interlock fault If using a custom interlock system connect the Cobolt supplied interlock plug to check whether the interlock is correctly wired This interlock should be connected as described in section 5 3 In the software check that Interlock Fault is not displayed Send the command ilk to confirm the interlock is not open returns a 1 if closed If it is verified that the interlock system is closed yet an interlock fault is returned contact Cobolt technical support Laser emission stops Ensure the laser has adequate heat sinking MLD Only Check the base plate temperature this is displayed in the Cobolt Monitor software If it is outside of the range 20 50 C the laser may take longer to stabilize the temperature or be unable to do SO Check that the interlock is connected Send the command f If fault code 1 is returned check that the heat sink is adequate and that the ambient temperature is under 40 C If fault code 3 is returned see interlock fault checklist If fault code 4 is returned there may be a problem with the constant power system Contact Cobolt technical support Low power Check that the laser is in constant power mode using the GUI or the cp command Check the power reading using the GUI or the pa command MLD Only If this does not agree with the real output power re calibrate by measu
21. ebsite www cobolt se 8 1 Installation The GUI software Cobolt Monitor is developed and tested with operating systems Windows XP Windows Vista Windows 7 and Windows 8 Microsoft NET 2 0 is required to run the Cobolt Monitor software Most computers with Windows XP Windows Vista Windows 7 or Windows 8 has this included as standard The Cobolt Monitor software is a standalone executable file packaged in a library with other files needed to run the program No installation of the software is required and the GUI is started by running the executable The GUI can be downloaded from the website www cobolt se The files required are placed in a zipped folder Extract the folder on your PC The folder with files can be placed on any storage device like CD DVD USB stick or Hard drive and run from there Make sure that all the files in the folder are complete 8 2 Software instructions The software automatically searches for Cobolt devices every 5 seconds and automatically connects to the laser if detected The software can identify USB connected lasers as well as RS232 connected lasers ES Cobolt Monitor GUI interface with no laser connected 45 Cobolt 06 01 Series Once the laser is connected the laser can be controlled from the box dedicated for the laser The interface found in the figure below is intended for typical user cases and is a user friendly interface Only the relevant information is presented on this level dis
22. el or pin 11 on the Laser Head s D SUB OEM model The on off modulation socket is connected to a floating voltage line When this line is grounded or forced to zero the laser automatically enters on off modulation mode in the off state The laser will remain in on off mode until the laser is restarted Note that only a very small current lt 500 uA must flow in order to ground the circuit A 0 5 V TTL signal should be applied to modulate the laser and the duty cycle is set by the input signal The on off modulation socket takes a 3 5 mm stereo audio plug The plug should be connected as shown in the figure below F eS 5V Ground In Cobolt Monitor there is a tick box On Off Modulation which indicates when on off modulation is active When this is the case all other modes are greyed out although the previous mode remains checked as the laser remembers which mode it was in previously The laser automatically detects when an on off modulation signal is present and enters on off modulation mode so there is no need for the user to check the On Off Modulation box manually In the box next to this tick box the user can set the peak power level that the laser will modulate up to 34 Cobolt 06 01 Series This is set in the factory to the laser s nominal maximum power level If the laser is in analog or digital modulation mode when it enters on off modulation mode the laser will operate in both simultaneously See below
23. ense com Germany Austria Switzerland Von Gegerfelt Photonics Phone 49 6251 860 99 20 Fax 49 6251 860 99 17 www vgphotonics eu Israel Lahat Technologies Ltd Phone 972 4 999 0151 Fax 972 9 76 46 204 www lahat co il Japan Pneum Co Ltd Japan Phone 81 48 985 2720 Fax 81 48 985 27 21 www pneum co jp Singapore Malaysia Thailand Photonitech Asia Pte Ltd Phone 65 6749 9031 Fax 65 6233 9171 www photonitech com Taiwan Tayhwa Technology Co Ltd Phone 886 2 23569737 Fax 886 2 23569659 www tayhwa com tw Cobolt headquarters Info Phone 46 8 545 91 230 Fax 46 8 545 91 231 E mail info cobolt se Web www cobolt se Sales representatives Benelux Laser 2000 Benelux CV Phone 31 297 266 191 Fax 31 297 266 134 www laser2000 nl Estonia Latvia Lithuania Optek Ltd Phone 37 129 781 582 Fax n a www optek lv India New Age Instruments and Materials Phone 91 124 4086513 16 Fax 91 124 2331653 www newagein com Italy Optoprim S r l Phone 39 39 834 977 Fax 39 39 284 5269 www optoprim it Poland Amecam Phone 48 22 207 22 78 Fax 48 22 207 22 77 www amecam pl South Korea SM Tech Phone 82 42 8244413 Fax 82 42 8244414 www lasersystem co kr UK amp Ireland Laser Lines Ltd Phone 44 1295 672 500 Fax 44 1295 672 550 www laserlines co uk Brazil Photonics Instrumentos Phone 55 11 2910 6852 Fax 55 11 2910 6852 www
24. er operational status There are also buttons to abort the autostart sequence or to restart the laser after a fault Fault Status displays ERROR messages In the event of an ERROR the laser action is stopped When the reason for ERROR event is understood and the problem is addressed the fault status can be cleared with Clear Fault If the Autostart Program is enabled click Restart to restart the laser LED Status The LEDs display the lasers status For MLDs the GUI displays the LEDs that are currently illuminated on the Control Box In the DPL case the LED section does not correspond to any physical LED s 48 Cobolt 06 01 Series MLD LEDs POWER Green Power is supplied ON Orange Laser emission is on This light is always on in modulation mode if laser emission is possible ERROR Red An error has occurred DPL LEDs POWER Green Power is supplied ON Orange Laser emission is on This light is always on in modulation mode if laser emission is possible Laser Lock Orange Laser light is on and the output power has been locked to set point ERROR Red An error has occurred 9 Fiber pigtailed option Cobolt MLD 06 03 The Cobolt MLD Series lasers of high performance diode laser modules can be supplied with an ultra compact and robust fiber delivery option Cobolt MLD 06 03 The fiber is permanently aligned and fixed inside the laser sub package using Cobolt HTCure Technology ensuring stable optical output and h
25. ext and other items larger or smaller Adjust screen resolution Connectto a projector Connect to an external display an Windows Mobility Center Adjust commonly used mobility settings SmartAudio E 2 Under the Devices and Printers section choose Device Manager 3 Under Other devices find the device called Cobolt Laser Driver MLD DPL Right click it and chose Update Driver Software 4 5 39 Cobolt 06 01 Series y Device Manager File Action View Help e 9 mE mee NS a y Elgo gt Y Batteries gt Mi Computer gt lt a Disk drives gt ME Display adapters gt c IDE ATA ATAPI controllers gt 2 Imaging devices gt Keyboards b A Mice and other pointing devices gt I Monitors gt Network adapters 4 gt Other devices Portable Devices gt JM Processors D Sound video and gt lll System devices gt Universal Serial Bug 9 2 for hardware changes Properties Launches the Update Driver Software Wizard for the selected device On the next screen chose the Browse my computer for driver software option Ey Device Manager File Action View Help 92 GEE Eess I Update Driver Software Cobolt Laser Driver MLD How do you want to search for driver software Search automatically for updated driver software Windows will search your computer and the Internet for the latest driver software for your device unless you ve disabled thi
26. for more information about modulation mode combinations 4 Cobolt Monitor COMS MLD M N 0445 06 01 0080 100 S N 445008806 Operation 32 93 h LED status laser On Mode On Off Modulation Message Autostart Enabled Power On Set Power mi ON OFF Modulation LaserOn Laser OFF Laser ON Error 0 Laser Power 25 9 mw Commands Cobolt Monitor software with an MLD operating in on off modulation mode The on off modulation feature should never be used as an interlock An interlock socket is provided for this purpose on the laser head 35 Cobolt 06 01 Series Digital modulation Digital modulation is the fastest modulation mode possible with the MLD laser it has the largest bandwidth and shortest rise time Digital modulation requires a 0 5V TTL input signal applied to the digital modulation input female SMA connector on the Laser Head and the duty cycle is set by the input signal The diode current is modulated in a square wave To enter digital modulation mode using the Cobolt Monitor MLD software select Modulation Mode and Digital under Modulation Type You can set the peak power level that the laser will modulate up to by first pressing the More button which opens up a new control window and then enter your preferred value in the box to the right of the Modulation Mode check box This power value is set in the factory to the laser s nominal maximum power level Analog modulation An
27. gration the Auto start sequence can be disabled some commands require Auto start disabled All arguments are in lower case and separated by a space ASCII 32 For re starting the laser with commands after having opened the remote interlock switch execute cf for clear fault followed by cob1 to restart the laser On CDRH models the key switch is the only way to re start The following command can be used with all 06 01 Series lasers Command Function Argument Returned value Get laser ON OFF state 0 OFF 1 ON Qcobl Restart laser Forces the laser on without checking if autostart is enabled hrs Get Laser Head operating hours Float ilk Get interlock state 0 OK 1 interlock open cobas Enable disable autostart 0 disable 1 enable cobas Get autostart enable state 0 disabled 1 enabled I Laser ON Requires autostart disabled 10 Laser OFF p Get output power set point Float W p Set output power Float W pa Read output power Float W i Get drive current Float mA sic Set drive current Float mA cp Enter constant power mode ci Enter constant current mode f Get operating fault O no errors cf Clear fault 1 temperature error 3 interlock error 4 constant power time out 43 Cobolt 06 01 Series gsn Get serial number 32 bit unasigned integer cobasky Get Key Switch enable state 0 disabled 1 enabled cobasky Enable disable key switch 0 disable 1 enable The following c
28. igh polarization extinction ratio PER gt 100 1 over a large temperature range as well as very high level of insensitivity to transport conditions The standard 06 03 configuration is 1 m SM PM fiber with 3 mm jacketing and FC APC output connector non collimated but the design is intended for OEM use and type of fiber connector and lengths can be customized The output power is specified as out of the fiber The fiber is equipped with a removable end cap on the The fiber end cap serves as the mechanical shutter of the laser system It is important to always make sure the fiber end face is clean before turning the laser on and before connecting the fiber connector in physical contact with another connector Failure to do so may lead to irreparable damage of the fiber end face Do not clean the fiber when the laser is on We recommend using appropriate equipment for fiber cleaning and inspection All safety instructions in section 2 of this manual also apply to fiber pigtailed lasers Please refer to the Cobolt website for updated information on available output power models from the Cobolt MLD 06 03 models Cobolt DPL lasers are not available with the fiber pigtailed option Framnla Hazard Svmhal and Anartira lahol 49 Cobolt 06 01 Series Cobolt MLD Cobolt MLD 638 nm 638 nm 0638 06 03 0075 100 0638 06 03 0075 200 S N 1234 CE S N 1234 OEM LASER DEVICE Made in Sweden 05 2014 Made i
29. inal maximum power 4 To return to continuous wave mode disconnect the connector from the ON OFF MOD socket then restart the laser by turning the key off and on again 4 2 DPL 4 1 1 Continuous wave quick start 1 Mount the laser on a heat sink or suitable flat surface that provides adequate heat dissipation and connection to ground Use the four holes on the laser s base plate to secure it n Cobolt 06 01 Series 2 Attach the 6 pin Molex cable to the Laser Head Be sure the orange arrow is facing the top labelled side of the laser head 3 Attach the 6 pin Molex cable to the Control Box Be sure the sure the orange arrow is facing the top side of the control box Once the Molex cable has been inserted special tooling is required to remove it Attempts to remove it by force may damage the cable 4 Insert the interlock plug into the connector on the Control Box Cobo rt 5 Connect the supplied 5V power supply unit to the socket on the Laser Head and plug it in to the mains Cobolt 06 01 Series To start the laser turn the key on the Control Box clockwise to the ON position If it is already in the ON position turn it to OFF and then ON again Light will be emitted when the TECs have stabilized Once the key is turned it can take seconds for the TECs to reach their set temperature at which time the laser will begin to emit without further action from the user 20 Cobolt 06 01 Series 5 Sys
30. iode laser modules capable of operating in both pulsed and continuous wave modes Electronics boards within the Laser Head allow the MLD lasers to be modulated at high speed using an external signal Cobolt DPL lasers are visible wavelength diode pumped solid state lasers capable of operating in continuous wave mode only The Cobolt lasers are intended for stand alone use in laboratory environment or for integration into instrumentation equipment used e g in flow cytometry fluorescence microscopy particle amp flow analysis DNA sequencing interferometry and Raman spectroscopy Cobolt 06 01 Series 2 Safety 2 1 General All Cobolt 06 01 Series lasers including all Cobolt MLD and Cobolt DPL models are Class IIIB CDRH Class 3B IEC laser products that emit less than 500 mW of laser radiation within the visible spectrum Eye and skin exposure to direct or reflected laser light is hazardous and may be extremely harmful Always wear eye protection appropriate to the beam wavelength and intensity The device must be handled by skilled personnel with experience of lasers in a laboratory environment and with access to adequate laser safety equipment The Laser Head clearly displays a yellow warning label that shows the location of the laser beam aperture This label must be visible unless the laser beam is totally enclosed The table below describes the irradiance in W cm2 and appropriate level of eye protection in terms
31. ipped is constant current In constant current mode the laser runs at a set current level In constant power mode the power is monitored on an internal photodiode and this is used to regulate the current to maintain a constant power level When continuous wave operation is desired it is recommended to operate in constant current mode since the power is more stable over long periods and the noise is equal The specification parameters are not guaranteed over time periods of greater than 8hrs for constant power mode 6 2 2 DPL The laser can only operate in continuous wave mode There are two operating modes constant power and constant current The default mode for Cobolt DPL lasers when shipped is constant power In constant power mode the power is monitored on an internal photodiode and this is used to regulate the current to maintain a constant power level In constant current mode the laser runs at a set current level It is recommended to operate in constant power mode since the power is more stable over long periods and the noise is lower The specification parameters are not guaranteed for constant current mode 6 3 Modulation 6 3 1 MLD Which modulation type to use The Cobolt MLD has three different modulation methods on off digital and analog These three modes aim to cover most applications the user may have and they each have very different specifications Below is a brief guide to deciding which modulation type to use
32. l value or the acknowledgment string OK In the event that the system receives a message that it cannot interpret it responds Syntax error illegal command Every system response is terminated by a carriage return ASCII 13 and a full stop is used with floating numbers 38 Cobolt 06 01 Series 7 4 USB driver The MLD and the DPL lasers use the same driver to connect to the laser via USB The USB driver must be installed and can be downloaded from the Cobolt website www cobolt se When installed a virtual COM port will be created to communicate with the laser To install the USB driver in Windows 7 follow these instructions 1 Goto the Control Panel and choose Hardware and Sound G0 Control Panel Hardware and Sound v 5 Search Control Panel Control Panel Home 7 Devices and Printers j f I System and Security I Addadevice Add a printer Mouse Device Manager Network and Internet AutoPlay ici Change default settings for media or devices Play CDs or other media automatically La la Sound Adjust system volume Change system sounds Manage audio devices Programs User Accounts and Family Safety Appearance and Personalization Power Options Change battery settings Change what the power buttons do Require a password when the computer wakes Change when the computer sleeps Clock Language and Region Adjust screen brightness Ease of Access Display Make t
33. modulation Rise Fall time lt 300 ns Remote ON OFF frequency DC 500 kHz Remote ON OFF extinction ratio l inf Remote ON OFF Rise Fall time lt 300 ns 5 1 4 Mechanical e Mo owo o Laser Head dimensions 100x40x40 mm Weight lt 0 2 kg lt 0 3 kg 5 1 5 Electrical interfaces MLD model 22 Cobolt 06 01 Series 5 1 6 Electrical interfaces DPL model 23 Cobolt 06 01 Series 5 2 Diagram Diagrams are shown below of the Laser Head and Control Box showing dimensions in mm and connectors 5 2 1 MLD Laser Head Interlock Digital modulation mi O input 1 Gi A 5V DC LY H D sub 15 pin Mini USB 24 Control Box Fronipanel Rearpanel RS 232 IO OE 82 80 Cobolt 06 01 Series 25 Cobolt 06 01 Series 5 2 2 DPL Laser Head Molex 6 pin Interlock Mini USB Note the Molex 6 pin orientation on the laser head is inverted with respect to the drawing in section 5 5 2 Control Box Key Switch LED indicators 3 5mm Interlock Molex 6 pin connector Ml 43 50 26 Cobolt 06 01 Series 5 3 Interlock The laser is equipped with an interlock that prevents current flowing through the diode when the circuit is open The interlock socket is located on the back of Laser Head The laser is supplied with mating plug which will close the interlock The lasers is
34. n please contact Cobolt s technical support 3 5 1 MLD The MLD Laser Head must be attached to a heat sink providing a thermal resistance of lt 0 8 K W Heat Sink Requirements MLD Thermal Impedance K W o o 10 20 30 40 50 Ambient Temperature C 3 3 2 DPL The DPL Laser Head must be attached to a heat sink providing a thermal resistance of lt 0 5 K W Heat Sink Requirements 06 81 2 5 20 Q O g 15 Oo D Q ho fo E 05 D E 0 0 0 10 20 30 40 50 Ambient Temperatures T C Cobolt 06 01 Series 3 6 Power supply requirements An appropriate Power Supply Unit PSU is supplied by Cobolt with the laser and can be plugged into a standard power outlet The power supply accepts 90 264 VAC and 47 63 Hz Ripple and noise 196 peak peak max 20 MHz bandwidth Accepted voltage range for the Laser Head is 5 0 0 5 VDC Specification values are given at 5 VDC 3 6 1 MLD The output from the Cobolt supplied PSU is 5 VDC and the maximum current is 3A max 15W 3 6 2 DPL The output from the Cobolt supplied PSU is 5 VDC and the maximum current is 5A max 25W 4 Quick start guide for CORH model 4 1 MLD 4 1 1 Continuous wave quick start 1 Mount the laser on a heat sink or suitable flat surface that provides adequate heat dissipation and connection to ground Use the four holes on the laser s base plate to secure it P 2 Attach the 15 pin D SUB cable to the Laser Head 3 Atta
35. n Sweden 05 2014 Input VDC SV I mx 3 A Input VDC SV I mx 3 A Cobolt AB Vretenv gen 13 Cobolt AB Vretenv gen 13 SE 171 54 Solna Sweden SE 171 54 Solna Sweden Manufacturer s identification labels left CDRH model right OEM model 50 Cobolt 06 01 Series 10 Troubleshooting Below are some possible problems along with a list of things to check if the problem occurs No laser emission after 3 minutes from start up Verify the interlock is connected and restart the laser Verify that autostart is enabled Click the restart button in the Monitor software or send the command cob1 to force a restart of the laser Ensure the laser has adequate heat sinking Verify the supply voltage is within the range stated in section 3 6 MLD Only Check the base plate temperature this is displayed in the Cobolt Monitor software If it is outside of the range 20 50 C the laser may take longer to stabilize the temperature or be unable to do SO MLD Only Remove any connector from the ON OFF MOD socket on the Control Box or pin 6 on the Laser Head s D SUB in OEM mode Make sure the laser is not in modulation mode in the software or with the cp command then restart the laser Send the command f If fault code 1 is returned check that the heat sink is adequate and that the ambient temperature is under 40 C If fault code 3 is returned see interlock fault checklist If fault code 4 is returned there may b
36. n in MLD models see section 6 3 Modulation for information on ON OFF modulation The Direct On Off Control feature enables turning the laser ON OFF using a 5 12 VDC signal After having configured the Controller for Direct Control operation factory set or by executing cobasdr 1 the laser can only start up when 5 12V VDC max 12 5 VDC is applied to pin 3 on the Molex connector with 0 VDC on pin 2 as reference Shifting the signal to 0 VDC on pin 3 will turn the laser off and put the laser in stand by mode status LED is POW and not flashing This input only controls the on off state of the laser and cannot be used to modulate the power output The interlock connection between pin I and 2 must also be made as described above 29 Cobolt 06 01 Series 5 5 Pin assignment 5 5 1 MLD The pin configuration for the 15 pin D SUB on the MLD Laser Head and control box are described in the table below MLD model LED1 Laser on 5 aa la DE 15P Male Plug Front View finte Interlock 5 1 a esee ee a 15 1 DE 15S Female Socket Front View The pin configuration for the RS 232 socket on the MLD control box MLD model 1 5 6 Q RS232TX DE 09P Male Plug Front View RS232RX 5 i 6 7 Not connected Not connected VBUS 30 Cobolt 06 01 Series 5 5 2 DPL The Molex 90130 3206 pin configuration on the DPL Laser Head and control box is described in the table below Note the pin orientation with respect to the
37. ommands are valid on the DPL model only Command Function Argument Returned value Enable disable direct control cobasdr See sect 8 4 for description OEM ATA AE models ANA cobasdr Get direct control enable state O disabled 1 enabled The following commands are valid on the MLD model only Command Function Argument Returned value em Enter modulation mode gdmes Get digital modulation enable state O disabled 1 enabled sdmes Set digital modulation enable state 0 disable 1 enable games Get analog modulation enable state 0 disabled 1 enabled sames Set analog modulation enable state O disable 1 enable galis Get analog low impedance 50 Q state 0 disabled 1 enabled salis Set analog low impedance 50 Q state O disable 1 enable gom Returns the current operating mode O Off 1 Waiting for key 2 Continuous 3 On Off Modulation 4 Modulation 5 Fault 6 Aborted Analog and digital modulation states are independent To switch from analog to digital modulation it is necessary to disable analog and enable digital 44 Cobolt 06 01 Series 8 Cobolt Monitor software The Cobolt Monitor software provides a graphical way to monitor the laser performance and to change power operation mode and other settings The software can connect to the laser either via RS 232 port MLD only or via USB The USB driver must be installed manually see section 7 4 and can be downloaded from the Cobolt w
38. ons of the manual shutter This label must be visible unless the laser beam is totally enclosed There is a silver label showing information about the laser model and manufacturer and the power supply voltage and current is located both on the laser head and on the bottom of the Control Box 2 3 1 MLD Cobolt MLD 638 nm 0638 06 01 0140 100 S N 1234 Made in Sweden 05 2014 Input VDC 5 V I mx 3 A Cobolt AB Vretenv gen 13 SE 171 54 Solna Sweden Cobolt MLD 638 nm CE marking for CORH models only label underneath 0638 06 01 0140 200 i OEM LASER SIN 1234 CEMERS Made in Sweden 05 2014 Input VDC 5 V Imy 3A Cobolt AB Vretenv gen 13 SE 171 54 Solna Sweden OEM Label Complies with 21 CFR 1040 10 and 1040 11 except for deviations pursuant to Laser Notice No 50 dated June 24 2007 CDRH models shipped to USA Cobolt 06 01 Series 2 3 1 DPL Cobolt DPL 532 nm 0532 06 81 0200 100 S N 1234 Made in Sweden 05 2014 Input VDC 5V Imy 5A Cobolt AB Vretenv gen 13 SE 171 54 Solna Sweden CE marking for CORH models only N o e eat open DPL 0532 06 81 0200 200 S N 1234 OEM LASER DEVICE Made in Sweden 05 2014 Input VDC 5V Imy 5 A Cobolt AB Vretenv gen 13 SE 171 54 Solna Sweden LIGHT IS EMITTED FROM gt APERTUR OEM Label Max powe UVavele nat 7 Complies with 21 CFR 1040 10 and 1040 11 except for deviations pursuant to Laser Noti
39. playing only the status of the laser and relevant choices to make and not all possible states that might be confusing if not fully understood Here follows a short description of how to use the GUI on this level 4 Cobolt Monitor oo G Cobolt COMS MLD MAN 82 0 S N 445008806 Operation 32 92 h LED status Laser On Mode Constant Current Mode Message Set Current 107 0 m Artea Enaliad Power On Continous Error 0 Laser Power 82 0 mw Commands GUI interface successfully connected to an MLD Laser ON Turns the laser ON If the laser is in autostart mode this is equivalent to restart Laser OFF Turns the laser OFF Mode Gives a choice of operational modes possible to choose for the laser model For 06 01 laser models Constant Power Constant Current or Modulation mode operation can be chosen Only relevant choices for the mode of operation are presented Commands opens a command communication window to send commands directly to the laser controller Message highlights important information of the laser status to the user Disconnect allows to disconnect the GUI in a controlled way Note The communication cable should not be pulled out when the GUI is connected The communication within the controller can malfunction and this might require a power restart of the laser To disconnect the laser click Disconnect or close the GUI completely It is also possible to disconnect by powering
40. ring the power and entering it in the Power Cal box in the software MLD Only Remove any connector from the ON OFF MOD socket on the Control Box or pin 6 on the Laser Head s D SUB in OEM mode then restart the laser Send the command f If fault code 4 is returned there may be a problem with the constant power system Contact Cobolt technical support 51 Cobolt 06 01 Series 11 Warranty and maintenance The Cobolt lasers should not be opened for any reason The warranty will be void if any of the system units are opened All laser parameters are set at the factory and there are no adjustments required other than those described in this manual for operating in different modulation modes and at different power levels 11 1 MLD Cobolt provides a system warranty of 12 months after delivery with unlimited hours of operation except on 633nm 638nm 647nm and 660nm MLD which has a 12 month warranty or 5000 hour limited warranty whichever comes first The laser systems are designed for modular replacement or repair in the event that the Laser Head or Control Box malfunctions Warranty is invalid if the laser system is operated outside of the specific limits and conditions as outlined in this document 11 2 DPL Cobolt provides a system warranty of 12 months after delivery with unlimited hours of operation Warranty is invalid if the laser system is operated outside of the specific limits and conditions as outlined in this
41. s equipped with a remote interlock that prevents current flowing through the diode when it is open See section 5 3 for a detailed description of the interlock Mechanical shutter The Laser Head is equipped with a mechanical shutter that blocks light emission The open and closed positions of the shutter are indicated on the Laser Head Key switch The CDRH model comes with a Control Box which must be connected for the laser to operate When the key is off the diode is prevented from emitting The key must be actively turned to the ON position each time the laser is powered on Information LEDs The Control Box which is part of the CDRH models incorporates information LEDs which display whether power is connected the laser is on or a fault has occurred The LASER ON LED is illuminated whenever the device is emitting or could emit light 2 3 Equipment Safety Always install the laser system to a properly grounded power outlet Cobolt lasers contain a laser diode which is sensitive to electrostatic discharge ESD Laser light reflected directly back into the laser head can be damaging to the laser diode Cobolt 06 01 Series 2 4 Warning and identification labels The upper face of the Laser Head contains a yellow label with laser safety warning and classification information the wavelength and maximum power of the unit It also shows the location of the laser beam from the aperture and indicates the open and closed positi
42. s feature in your device installation settings gt Browse my computer for driver software Locate and install driver software manually Click browse and find folder on your computer where the USB driver is stored 40 Device Manager File Action View Help o cs Ol AN PANG Cobolt 06 01 Series Browse for driver software on your computer Search for driver software in this location C Users Simon Desktop Include subfolders gt Let me pick from a list of device drivers on my computer This list will show installed driver software compatible with the device and all driver software in the same category as the device 41 Cobolt 06 01 Series 6 Windows security may warn you that the publisher of the driver is unverified Choose Install this driver software anyway y Device Manager File Action View Help AMEN AA b la C p Ss D gt Don t install this driver software You should check your manufacturer s website for updated driver software for your device gt Install this driver software anyway Only install driver software obtained from your manufacturer s website or disc Unsigned software from other sources may harm your computer or steal information 7 The installation should now be complete 42 Cobolt 06 01 Series 7 5 Communication commands The laser is set in auto start mode when delivered see section O for auto start sequence description For system inte
43. setting the impedance to 50 Ohm Using the low impedance will cause more of the power to be dissipated in the signal generator so in order to modulate up to full power the user should monitor the voltage across the laser device to ensure that it reaches 1 V Modulation mode combinations In addition to the three modulation modes described above the Cobolt MLD can be operated under any combination of modes On off another mode Any mode can be operated in combination with on off modulation When the laser is in modulation mode and a signal is input to the on off modulation socket the laser operates in both modes simultaneously When the on off input state is high the laser behaves as if it were in digital or analog mode and when it is low the laser switches off regardless of the digital or analog state This is a useful way to produce a train of pulses Digital Analog The MLD has a special mode for hybrid digital analog modulation This can be accessed in the Cobolt Monitor MLD software under the Modulation Type option In this mode whenever the digital state is on the laser runs at a power determined by the analog voltage 6 3 2 DPL Modulation is not available for DPL lasers 37 Cobolt 06 01 Series 7 Operation via data port 7 1 Data port connections 7 1 1 MLD There are three ways to connect the Cobolt 06 01 Series MLD laser to a data port note that the user should avoid communicating via multiple interfaces simul
44. taneously rather using one data port per interface The data connections are located as follows e Mini USB connection on the Laser Head for USB communication The USB cable is provided with all MLDs 15 pin D SUB connection on the Laser Head OEM model For communication is via RS 232 See section 5 4 for the pin assignment this cable is not standard and is not available from Cobolt e 9 pin D SUB RS 232 connection on the Control Box CDRH model Communication is via RS 232 The Sub D 9 RS 232 cable is a standard cable but is not provided by Cobolt 7 1 2 DPL The Cobolt 06 01 Series DPL laser can be connected to a data port via mini USB connection on the Laser Head for USB communication There is no RS 232 communication on the DPL The USB cable is provided with all DPLs 7 2 Baud rates amp serial port settings Each system is shipped from the factory with a fixed baud rate 115200 which cannot be changed in the field The other serial port parameters are 8 data bits 1 stop bit and no parity Hardware flow control is not supported Each command must be terminated by a carriage return All commands are case sensitive Leading and trailing white space is ignored but command arguments must be delimited by a single space character ASCII 32 7 3 Handshaking Under no circumstances does the system initiate communication it only transmits characters in response to a message Every message generates a response either a numerica
45. tem description 5 1 Specifications Disclaimer Specifications are liable to change at Cobolt s discretion 5 1 1 Optical wavelength om los 445 ara asa sis es oss 647 oso Output power en 100250 so 100 60 200 so so mo 120 100 Spatial mode TEMoo M2 lt 1 2 Polarization extinction ratio gt 100 1 vertical Beam symmetry gt 0 90 1 Spectral bandwidth FWHM Beam position accuracy 3 lt 0 5 mm Beam angle accuracy 3 lt 5 mrad Polarization extinction ratio Beam symmetry gt 0 95 1 Spectral bandwidth FWHM lt 1 MHz 21 Cobolt 06 01 Series CC mode MLD modulated laser diode DPL diode pumped laser 1 The wavelength for each unit is fixed at a value within the stated range The wavelength is measured in air 2 The output power can be adjusted using Cobolt Monitor software or using computer commands 3 Relative to bottom and side of base plate Specifications are guaranteed at 100 of nominal power 5 1 2 Operational and environmental requirements OOOO Mp co Maximum baseplate temperature 50 C Maximum heat dissipation of Laser Head is Warm up time from complete off lt 3 min Storage temperature 10 gt 60 C Laser Head heat sink thermal impedance at 40 C ambient lt 0 8 K W lt 0 5 K W 4 Specified over a base plate temperature range of 20 50 C ambient 10 40 C 5 1 3 Modulation MLD Only Analog modulation bandwidth DC 2 MHz Analog
46. urrent The figure below contains a typical power vs current graph for a 405 nm MLD laser showing this behavior When modulating with an arbitrary waveform the user should use a DC offset on the signal generator such that the laser is modulated from this threshold point to the desired maximum signal level The threshold level varies between laser models and from unit to unit but the user can find it by applying a variable DC voltage to the analog modulation input and looking for the lowest voltage where laser light is emitted The amplitude and DC offset of the input signal should then be set so that it modulates from this point up to 1 V Note that although the diode does not emit laser radiation below threshold it still emits some light modulating from 0 V will therefore give the best possible extinction ratio 36 Cobolt 06 01 Series 140 120 100 80 60 Power mW 40 20 0 20 40 60 80 100 120 140 Current mA Power vs Current for a typical 405 nm MLD laser The user is given the choice of two impedance values for the laser s analog modulation circuit 1 kOhm and 50 Ohm The impedance value can be toggled either in the Cobolt Monitor MLD software or by RS 232 commands The default impedance is set to 1 kOhm and for most cases it is recommended to use this value When using a 50 Ohm signal generator the rising and falling edges of the output may suffer ringing due to the impedance mismatch a problem which can be solved by

Owners Manual

Contents

Download Pdf Manuals

Related Search

Related Contents