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QCL500, QCL1000, QCL1500 Low Noise Quantum Cascade Laser Drivers

PAGE 20

QCL1500-00400-D

SAFE OPERATING AREA & AIRFLOW REQUIREMENTS

The charts on this page can be used to determine if your design falls within the

Safe Operating Area

(SOA) for the QCL series driver that you are using. For an

example of how to use these charts, reference the previous page. There is also an
online Safe Operating Area calculator available at:

http://www.teamwavelength.com/support/calculator/soa/soald.php

Содержание QCL1000 LAB

Страница 1: ...587 4910 or quietqcl teamwavelength com 1 Covered by U S Patents 6 696 887 6 867 644 and 7 176 755 Licensed from Battelle Memorial Institute Minimize spectral drift center wavelength jitter and linew...

Страница 2: ...rt number TCH35P10R0JE ND 10 50 W metal film resistor QCL Pin 19 QCL Pin 20 Internally grounded Figure 2 Example Test Load NOTE At 2 A output current will be compliance voltage limited with a 10 resis...

Страница 3: ...nt Inrush current requirement 6 TYP MIN MAX UNITS TEST CONDITIONS PARAMETER TAMBIENT 25 C TAMBIENT 25 C 24 V in to full scale to full scale large signal 90 full scale to full scale at 500 kHz IOUT 100...

Страница 4: ...er Function Remote Enable Disable Remote Power On Status Outputs MONITOR Current Monitor Range Current Monitor Bandwidth 3 dB Current Monitor stability Accuracy Current Monitor to Actual Limit Monitor...

Страница 5: ...ed Model QCL500 QCL1000 QCL1500 RMS noise A 100 kHz BW 0 4 0 7 1 0 Average Current Noise Density nA SHz 1 0 2 0 3 0 How noise measurements are made is detailed in WEI s Low Noise Measurement Protocol...

Страница 6: ...FICATIONS continued There is a slight 2 overshoot when the driver is operating in current limit with the limit value set well below the setpoint We recommend that you operate with the limit above the...

Страница 7: ...or Analog Input Voltage Not designed for high current return Ground can be used to ground chassis Positive DC power to the unit typically 24 V Negative DC power to the unit typically 24 V GROUND desig...

Страница 8: ...f this limit Online at http www teamwavelength com support calculator soa soald php choose the model of QCL driver you will be using Enter your power supply and QCL characteristics to determine intern...

Страница 9: ...sing the REMOTE inputs wire them now TTL compatible up to 12 V Pin 3 Remote Power On Pin 4 Remote Power On Pin 5 Remote Enable Pin 6 Remote Enable STATE Local Only All switches to right or ON FACTORY...

Страница 10: ...g a power supply with the chassis not tied to ground WEI offers switching power supplies PWRPAK 24V a 20 pin cable WCB311 and a power supply kit WCB312 to simplify setup Twist wire pairs to minimize n...

Страница 11: ...hts If the LED does not power on review REMOTE vs LOCAL switch settings Step 4 and the state of the REMOTE POWER ON signal Pin 4 referenced to Pin 3 7 Set Current Limit Zero Output Current Choose Curr...

Страница 12: ...off ramp is 5 5 sec Flip the POWER switch to the OFF position The POWER LED goes out Turn off the power to the dual DC power supplies 10 Remove test load and wire in a Quantum Cascade Laser Wire the...

Страница 13: ...or 50 Hz peaks Pin 15 on the 20 pin connector is ground It can be wired to a screw on the chassis to the mounting slots etc Note that despite the peak at 60 Hz 0 ot 100 kHz RMS noise for the two graph...

Страница 14: ...PIN Ground Pin 12 10 k The STATUS pins output 12 V up to 25 mA With this typical hookup we assume 1 5 V forward voltage across LED and 1 mA drive current 12 V 1 5 V 1 mA 10 k Minimize cable length to...

Страница 15: ...20 CABLE 4 cond 4 cond 4 cond 4 cond 6 cond 6 cond 6 cond 6 cond 6 cond 6 cond 2 cond 2 cond 1 cond 3 cond 3 cond 3 cond 2 cond 2 cond BLK WHT GRN RED BLU GRN ORG WHT RED BLK RED BLK BLK RED WHT BLK...

Страница 16: ...00 Low Noise Quantum Cascade Laser Drivers PAGE 16 QCL1500 00400 D MECHANICAL SPECIFICATIONS 2 32 6 00 28 6 55 4 00 50 5 00 5 50 75 R 141 281 233 TYP 59 062 Dimensions are in inches mm Tolerance is 5...

Страница 17: ...ver needs to be mounted by the baseplate mounting holes not supported by the solder joints The solder joints are not meant for mechanical support To use 8 screws instead of 1 4 20s for mounting a shou...

Страница 18: ...NOTE C NOTES NAME PLATE 7 3 10 1 VOLTAGE ADJUSTMENT 5 M3 5 SEE NOTE B LED 82 1 8 15 MORE THAN 6m m SCREWS MUST NOT PROTRUDE INTO POWER SUPPLY BY C M3 TAPPED HOLES 2 FOR CUSTOMER CHASSIS MOUNTING AC L...

Страница 19: ...e example SOA determination Device QCL1500 V 24 Volts VQCL 10 Volts IQCL 1 25 Amp Follow these steps 1 Determine the maximum voltage drop across the driver V VQCL and mark on the X axis Example 24 V 1...

Страница 20: ...NTS The charts on this page can be used to determine if your design falls within the Safe Operating Area SOA for the QCL series driver that you are using For an example of how to use these charts refe...

Страница 21: ...tronics Wavelength certifies that this product met it s published specifications at the time of shipment Wavelength further certifies that its calibration measurements are traceable to the United Stat...