User Manual LDS-VRM-005 Preliminary
Contents
1. Pic LAS MG COMPONENTS PIc LAS JEU NG POWER TO THE POIN User Manual AE LDS VRM 005 preliminary Manual l Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 O Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 into lasercomponents com info laser components com infoQlasercomponents co uk infoQlasercomponents r www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr Laser User Manual LDS VRM 005 Diodes LASER COMPONENTS Table of Contents Te 2 re 3 Absolute Maximum Ratings destroying limits uuarnrnnnnnnnnnnnnnnvrnrrrrrrrrrrrrrrrrnrrrnnrrnnnnnnnnnnnnnnnnnnnennnnen 3 PN 4 FORS 1 500 EE EE E E E E cesarean 5 Required Laser Diode Pinout rrnnnnnnnnnnnnnrnnnnnnnnnnnnnnnnnnnnenrannnnnnsnnnnnvenennnrnrrnnnnnenennseeennnnnrrnnnnnnsennnnseenee 6 Required electrical characteristics of the Laser Diode cccccccecccceeeeeeeeeeeeeeeeeeeeeesaaeeeeeeeeeeeeeeeeeeeas 6 Description of the Connectors of the LDS VRM 005 esecseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeseeeaeeaaaas 7 Input 42 and Current Monitor Fi ereere aE EEA ai 8 Propagation delay 2 TO EE NE amnnetes 9 Description of the SUB D 9 Conn2. 10 0n 2 5G56 IT 4 0pe pt A Chl 47 Em Chi 100r 52 Che 100m Ch4 100m Et 8 Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 0 Fax 49 8142 2864 11 info lasercomponents com www lasercomponents com USA Laser Components USA Inc Tel 1 603 821 7040 Fax 1 603 821 7041 infoQlaser components com www laser components com United Kingdom Laser Components UK Ltd Tel 44 1245 491 499 Fax 44 1245 491 801 infoQlasercomponents co uk www lasercomponents co uk France Laser Components S A S Tel 33 1 39 59 52 25 Fax 33 1 39 59 53 50 infoQlasercomponents r www lasercomponents fr Kelsey Diodes User Manual LDS VRM 005 LASER COMPONENTS Propagation delay 1 to 2 The typical propagation delay from input to start of current flow is typ 10 ns Additional 8 ns appear through the internal current monitor dps P zoom 1 Chi zoom 1 Ch4 100rn 10 06 JO0r 10 06 Description of the SUB D 9 Connector 3 SUB D 9 Connector BIAS POT1 2 BIAS POT1 1 8 GND 9 18VvV 7 6 C 7 Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 0 Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 infoQlasercomponents com info
3. Laser Components GmbH Tel 49 8142 2864 0 Fax 49 8142 2864 11 infoQlasercomponents com www lasercomponents com USA Laser Components USA Inc Tel 1 603 821 7040 Fax 1 603 821 7041 info laser components com www laser components com United Kingdom Laser Components UK Ltd Tel 44 1245 491 499 Fax 44 1245 491 801 info lasercomponents co uk www lasercomponents co uk France Laser Components S A S Tel 33 1 39 59 52 25 Fax 33 1 39 59 53 50 infoQlasercomponents fr www lasercomponents fr Laser User Manual LDS VRM 005 Diodes LASER COMPONENTS The following dimensions are in millimetres mm 14 Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 0 Fax 49 8142 2864 11 infoQlasercomponents com www lasercomponents com USA Laser Components USA Inc Tel 1 603 821 7040 Fax 1 603 821 7041 infoQlaser components com www laser components com United Kingdom Laser Components UK Ltd Tel 44 1245 491 499 Fax 44 1245 491 801 infoQlasercomponents co uk www lasercomponents co uk France Laser Components S A S Tel 33 1 39 59 52 25 Fax 33 1 39 59 53 50 infoQlasercomponents r www lasercomponents fr Laser User Manual LDS VRM 005 Diodes E COMPONENTS I ua z E 3 3 5 3 D O red L 18 Germany amp Other Countries USA United Kingdom France S Laser Components GmbH Laser Components
4. Please assemble the entire unit to a heatsink which is capable to take out the heat The heatsink is suitable if the system temperature does not exceed the maximum operating limits To achieve best performance the base plate temperature should be kept in the range of 10 C 35 C The peak heat load is 10 W Test Load For the first testings a test load may be assembled instead of the laser diode This test load may be a short circuit or a fast schottky diode like MBRos4o Please connect the test load only between Anode and Cathode LD and LD and prevent shorts to any other part of the circuit The connections for LD are at the bottom and for LD on the top side 13 Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 0 Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 infoQlasercomponents com infoQlaser components com infoQlasercomponents co uk infoQlasercomponents r www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr Laser User Manual LDS VRM 005 Diodes LASER COMPONENTS Mechanical Dimensions The following dimensions are in millimetres mm 4 35 5 i 19 Germany amp Other Countries
5. Qlaser components com infoQlasercomponents co uk infoQlasercomponents r www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr User Manual LDS VRM 005 LASER COMPONENTS Power Supply 3 and Supply Absolute Maximum Ratings The laser driver supply can be interrupted at any time for e g safety reasons Pin of conn 3 Allowed range Best performance Destroying limit 7 and 9 15V Vcc 15V 24V 25 V tagen om owo Block Diagram LDS VRM 005 Block Diagram LD Vcc gt DC DC w VY LD Input Contol Unit 50R Pi _ BIAS POT Monitor Measurement 5 wv GND 10 Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 0 Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 infoQlasercomponents com infoQlaser components com infoQlasercomponents co uk infoQlasercomponents fr www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr Kelsey Diodes User Manual LDS VRM 005 LASER COMPONENTS Description of BIAS POT 3 Bias Potentiometer P1 P1 Bias This Value of Potentiometer P1 is part of the calibration procedure Q performed at PicoLAS It must not be cha
6. USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 0 Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 infoQlasercomponents com infoQlaser components com infoQlasercomponents co uk infoQlasercomponents r S www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr
7. ector 3 rrrnnnnnnnvvnvnnrrrrrnnnnnnnrrrrrrrnrrnrrrnrnnnnnnssrrrrenennnrnrnnnnnnsssnsnsssne 9 Power Supply 3 and Supply Absolute Maximum Ratings rrnnnnnnnnnnnnrrnnnnnnnnnnrnnnnvnnnnnnrrnrnnnnnrnnnnnn 10 BOG DRO EE NE A E 10 SOE EEE ene ee eee 11 FILE EE EE EE A 12 COON NENNE EEE NEDE EN EEE 14 ME EEE EEE EEE EEE ENN 15 Me 16 2 Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 O Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 info lasercomponents com info laser components com info lasercomponents co uk info lasercomponents fr www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr Laser User Manual LDS VRM 005 Diodes LASER COMPONENTS How to use the Manual A Remark The LDS VRM o005 described in this manual is a base plate cooled laser diode driver Base plate cooling Depending on the final application and operation regime this unit may stay uncooled or must be assembled onto a heat sink Please refer to chapter Power dissipation for more details about the thermal power losses during operation You me use a passively or an actively air water cooled device Housing All units are delivered with housing Changes are possible the unit
8. er User Manual LDS VRM 005 Diodes LASER COMPONENTS LDS VRM 005 BIAS POT Connector BIAS POT If the increase of Bias current is not necessary let the pin 2 and 3 floating Linearity current voltage characteristic pulse mode 500 450 400 lt 350 E 300 250 2 200 mal 150 100 50 0 0 100 200 300 400 500 600 700 800 900 1000 Uin mV 12 Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 0 Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 infoQlasercomponents com infoQlaser components com infoQlasercomponents co uk infoQlasercomponents r www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr laser User Manual LDS VRM 005 Diodes LASER COMPONENTS current voltage characteristic cw mode 500 450 400 350 300 250 Ild mA 200 150 100 50 0 25 50 15 100 125 150 175 200 225 250 Uin mV 13 Germany amp Other Countries USA United Kingdom France Laser Components GmbH Tel 49 8142 2864 0 Fax 49 8142 2864 11 infoQlasercomponents com www lasercomponents com Lase
9. ll immediately destroy the driver and the probe Keep connecting cables between power supply and driver as well as the connection between driver and laser diode as short as possible Mount the driver on an appropriate heat sink Please be aware that there might be hot surfaces be careful not to touch them 4 Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 0 Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 infoQlasercomponents com infoQlaser components com infoQlasercomponents co uk infoQlasercomponents r www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr Kelsey Diodes User Manual LDS VRM 005 LASER COMPONENTS How to get started You need an additional fast arbitrary waveform generator AWG which has to be connected to the Input MMCX Terminal There is no AWG on board of the driver The PCB is very thin Mechanical forced have to be avoided to prevent damage Mechanical Step 1 damages are not covered by warranty What to do Assemble the driver onto an appropriate heat sink Check 2 Solder a dummy diode between LD and Refer to Chapter Test Load LD pad alternatively make a short circuit there 3 Co
10. nged by customer Changes have an impact on the performance of the driver and may damage the LD and the driver All changes are monitored and will cause the lost of the warranty The factory settings provide the Bias current to 15 20mA This current flows always through the laser diode BIAS POT Connector To increase the Bias current an additional resistor can be connected externally Resistance value on pin 2 and pin 3 of connector 3 sets the Bias current for the control unit Reduction of the total resistance results an increase of the Bias current Q A short circuit between the Pin 2 and 3 would be increase the Bias current in level of 500 mA Use as example a resistor Rext and potentiometer Pext in series The resistor Rext set the maximum and Pext the minimum of Bias current Rext 1k for 150 mA Bias current There can not be set as the factory settings smaller Bias current of 15 20mA l Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 0 Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 info lasercomponents com info laser components com info lasercomponents co uk info lasercomponents fr www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr Las
11. nnect GND 15V Vcc Power Supply Required current for this step is disabled around 18 mA Connect pe Or Piles concer an Refer to all chapters referencing Input Terminal no pulse before power nput Connector 1 supply enabled 5 Enable the power source for 15V Vcc Make sure not to overload the and feed a Pulse on the input terminal laser diode or the driver For example 0 5 V amplitude 1 us pulse width and 300 us repetition rate 6 Check it whether the Current Monitor On Imon Output Connector 2 Output pulses shape is similar to the input you can measure a signal signal comparable with the input signal 1 0 V on the input terminal results a current of 500 mA by test diode or bypass and 400 mV on the Imon Output Use an oscilloscope with a 50 ohm termination 7 Disable the input signal and turn the power sources for 15V Vcc Take out the test diode or bypass Assemble the final laser diode 8 Turn the power supply for the 15V Vcc on and feed a Pulse on the input terminal I Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 O Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 1 603 821 7041 infoQlaser components com www laser components com Fax 49 8142 2864 11 infoQlasercomponents com www lasercomponents com Fax 44 1245 491 801 infoQlasercomponents co uk www lase
12. r Components USA Inc Tel 1 603 821 7040 Fax 1 603 821 7041 info laser components com www laser components com Laser Components UK Ltd Tel 44 1245 491 499 Fax 44 1245 491 801 info lasercomponents co uk www lasercomponents co uk Laser Components S A S Tel 33 1 39 59 52 25 Fax 33 1 39 59 53 50 infoQlasercomponents fr www lasercomponents fr User Manual LDS VRM 005 Frequency Response Vcc 15V Output Current 125 mA Testload short circiut Output Current Frequency Response LASER COMPONENTS lout Signal in dB f Frequency MHz Current Monitor Frequency Response Imon Signal in dB 14 Germany amp Other Countries Laser Components GmbH Tel 49 8142 2864 0 Fax 49 8142 2864 11 infoQlasercomponents com www lasercomponents com 10 100 f Frequency MHz USA Laser Components USA Inc Tel 1 603 821 7040 Fax 1 603 821 7041 info laser components com www laser components com United Kingdom Laser Components UK Ltd Tel 44 1245 491 499 Fax 44 1245 491 801 info lasercomponents co uk www lasercomponents co uk France Laser Components S A S Tel 33 1 39 59 52 25 Fax 33 1 39 59 53 50 infoQlasercomponents fr www lasercomponents fr Kelsey Diodes User Manual LDS VRM 005 LASER COMPONENTS Cooling The seed driver is base plate cooled only
13. rcomponents co uk Fax 33 1 39 59 53 50 infoQlasercomponents fr www lasercomponents fr Laser User Manual LDS VRM 005 Diodes LASER COMPONENTS Required Laser Diode Pinout The LDS VRM oos is designed for the direct connection of almost any kind of laser diode The landing patterns accept 2 and 3 terminal packaged Laser Diodes A Never use cables gt 10nH This will cause excessive ringing and may damage the LD Laser Diode Connection the rectangular Pads on top Cathode and bottom Anode The dimensions of the rectangular Pads are 1mmx 5 mm There is no optical feedback path The unit is current controlled only Please shorten the legs to avoid short circuits inside the driver The maximum internal stray impedance must not exceed 10 nH to achieve best performance Required electrical characteristics of the Laser Diode Parameter Comment min typ Max Laser Diode Forward Voltage Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 O Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 into lasercomponents com info laser components com infoQlasercomponents co uk infoQlasercomponents f r www lasercomponents com www laser components com www lasercomponents co uk
14. s can be delivered without housing upon request Before powering on your unit read this manual thoroughly and make sure your understood it fully A Please pay attention to all safety warnings If you have any doubt or suggestion please do not hesitate to contact us Absolute Maximum Ratings destroying limits All Input Pins must not exceed the voltage range below zero GND and beyond VCC VCC Limit Refer to table in chapter Power Supply 3 Peak output current 0 5 A Max Imon current 1omA Operating temperature range 0 C 60 C Best performance operating temperature range 10 C 35 C Storage temperature range 20 9C 70 9C 3 Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 O Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 into lasercomponents com info laser components com infoQlasercomponents co uk infoQlasercomponents r www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr Laser User Manual LDS VRM 005 Diodes LASER COMPONENTS Dos and Don ts Never ground any output connector Q Never use any grounded probes at the output Do not connect your oscilloscope to the output This wi
15. www lasercomponents fr Laser User Manual LDS VRM 005 Diodes eee COMPONENTS Description of the Connectors of the LDS VRM 005 Connector Function Assembled Type Signal input 1 SMC male SMC female MULTICOMP 1169655 2 Current monitor SMC male SMC female Output MULTICOMP 1169655 Power connector D Sub 9 male D SUB9 female on cable Harting 0966118 7500 A Germany amp Other Countries USA United Kingdom France Laser Components GmbH Laser Components USA Inc Laser Components UK Ltd Laser Components S A S Tel 49 8142 2864 O Tel 1 603 821 7040 Tel 44 1245 491 499 Tel 33 1 39 59 52 25 Fax 49 8142 2864 11 Fax 1 603 821 7041 Fax 44 1245 491 801 Fax 33 1 39 59 53 50 into lasercomponents com info laser components com infoQlasercomponents co uk infoQlasercomponents r www lasercomponents com www laser components com www lasercomponents co uk www lasercomponents fr User Manual LDS VRM 005 LASER COMPONENTS Input 1 and Current Monitor 2 The driving analogue signal is provided via Connector 1 The output current is following the input signal within the limitations bandwidth max current rise time proportional refer to Chapter Linearity File Edit Vertical Horizf4cqg Trig Display Cursors Measure Masks Math Uti M 40 Ope 5 05 06 200nsiat Cha 200m Ch4 2DOm 2 Cha 2 agam File Edit Vertical Horiz Acq Trig Display Cursors Measure Masks Math Lilit h
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