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USER GUIDE

Low-Noise QCL Driver — Laboratory Series

1

Firmware versions 1.5 and later operate with the 

LabVIEW Virtual Instrument application and the Remote Command Set

ORDERING INFORMATION

PART NO

DESCRIPTION

QCL500 LAB

500 mA Low Noise QCL Instrument

QCL1000 LAB

1.0 A Low Noise QCL Instrument

QCL1500 LAB

1.5 A Low Noise QCL Instrument

QCL2000 LAB

2.0 A Low Noise QCL Instrument

NOISESCAN

Noise Characterization Scan

55-110014

SMA-BNC Cable

55-110015

USB Cable

WCB310

Shielded SMA-SMA Cable

QCLTL-LO

Resistive Test Load for QCL500 or 

QCL1000

QCLTL-1500

Resistive Test Load for QCL1500

QCLTL-2000

Resistive Test Load for QCL2000

RCKMT-LABSNGL

19” Single Unit Rack Mount Kit

RCKMT-LABDUAL

19” Double Unit Rack Mount Kit

INTLK REPL KIT 

(included with purchase)

Interlock Replacement Kit with BNC 

terminator and modified D-SUB 

connector to override interlocks

e

Pb

RoHS

Compliant

Applies to Product Revision A, 

firmware 1.5 and later

© Apr 2023

1

Covered by U.S. Patents 6,696,887; 6,867,644 and 7,176,755. Licensed from Battelle Memorial Institute

The datasheet for the QCL LAB Series Firmware Version 0.79 (compatible with the QuickConnect Application) is located at: 

www.teamwavelength.com/download/datasheets/qcl-lab079.pdf

QCL

TABLE OF CONTENTS

GENERAL OVERVIEW 

2

SAFETY 3
QUICK CONNECT GUIDE 

4

PIN DESCRIPTIONS 

6

ELECTRICAL SPECIFICATIONS 

7

OPERATING INSTRUCTIONS  

(STAND-ALONE) 9
REMOTE OPERATING INSTRUCTIONS  16
TROUBLESHOOTING 17
ADDITIONAL TECHNICAL NOTES 

20

MECHANICAL SPECIFICATIONS 

22

CE DECLARATION OF CONFORMITY 

23

WARRANTY & CERTIFICATION 

24

PAGE

Summary of Contents for QCL500 LAB

Page 1: ...t RCKMT LABDUAL 19 Double Unit Rack Mount Kit INTLK REPL KIT included with purchase Interlock Replacement Kit with BNC terminator and modified D SUB connector to override interlocks e Pb RoHS Complian...

Page 2: ...ailable Powering your QCL with this patented1 driver gives you narrow linewidth stable center wavelength and repeatable scans INTUITIVE USER INTERFACE AND SUPERIOR SOFTWARE CONTROL With Wavelength s p...

Page 3: ...ing power To avoid fire hazard use only the specified fuse with the correct type number voltage and current ratings and use only the recommended replacement parts CAUTIONS The QCL instrument has no us...

Page 4: ...Then turn the drawer until the correct voltage label is at the top and replace it in the receptacle Press firmly to make sure the drawer is completely seated It should be flush with the receptacle Fig...

Page 5: ...blue Limit Current value and rotate the Adjustment knob to change to the desired value The instrument will beep when set NOTE The Max Supply Voltage and Cable Resistance values can be ignored for now...

Page 6: ...can source 250 mA 2 Alignment LED ground 3 QCL current enabled indicator 5 V TTL high disabled low ground enabled 4 QCL current enabled indicator ground 5 Not used 6 Analog setpoint monitor 7 Analog...

Page 7: ...XTERNAL MODULATION MIN TYP MAX UNITS NOTES Modulation Bandwidth 2 3 MHz Sinewave Rise Fall Time 250 200 nsec To full scale Slew Rate 30 V sec Depth of Modulation 90 At 500 kHz External Modulation Inpu...

Page 8: ...atts At idle no output to QCL load GENERAL SPECIFICATIONS VALUE NOTES Warm up Time 1 Hour Remote Interface USB Ethernet Warranty One 1 Year Safety Tested To IEC 61000 3 2 IEC 61000 3 3 IEC 61000 4 2 I...

Page 9: ...rive current for the laser Over and under voltage protection circuits protect the driver and QCL if the power supply voltages fall outside of the acceptable operating range Over temperature protection...

Page 10: ...cal earth ground 3 QCL SMA SMA connector alternate connection to QCL 4 QCL D SUB 9 Pin female D SUB connector 5 Monitors 9 Pin male D SUB connector 6 USB USB port connection between instrument and a c...

Page 11: ...receptacle Press firmly to make sure the drawer is completely seated It should be flush with the receptacle Figure 12 Fuse Installation and Voltage Selector 5 Close the faceplate again pressing firml...

Page 12: ...ument beeps and text returns to blue when values are set Touch again to cancel selection ICONS Icon color indicates current state Blue Screen is active Grey Screen is inactive touch icon to access tha...

Page 13: ...aximum Internal Supply Voltage can be lowered to minimize internal instrument temperature or to act as a compliance voltage clamp on the QCL output current See Additional Technical Notes on page 20 fo...

Page 14: ...n press the red Stop button to abort the scan Any data collected during the aborted scan is saved to the USB flash drive NOTES The step interval time is approximate In the scan files time intervals ar...

Page 15: ...ernal modulation signal voltage see the next section for the transfer function and use the following equation VEXT_MOD ISETPOINT Transfer Function If the external modulation input causes the driver to...

Page 16: ...TTL indicator If current to the QCL output is enabled the voltage between PIN 3 and PIN 4 on the MONITORS D SUB will be low It will be high if current is disabled USE THE TRIGGER SIGNAL A trigger sig...

Page 17: ...rument experienced an internal fault See Error Messages on page 19 Switch the back panel power button off and then on again and turn the front panel power button on The internal temperature has reache...

Page 18: ...hen actively operating in current limit the safety circuits add noise to the output If I run my QCL at about 5 of maximum output current the transfer function becomes non linear and I see distortion i...

Page 19: ...instrument cannot drive current through the load Make sure the QCL SMA or Pins 5 9 of the QCL D SUB are connected A short circuit was detected at the load terminals Please verify the load and load co...

Page 20: ...ge input and the current is still not compliance voltage limited the instrument is operating at its lowest voltage and the voltage limit cannot be reduced further USE PASSIVE AND ACTIVE INTERLOCKS The...

Page 21: ...found at www teamwavelength com support software downloads 3 Extract the file on the flash drive It should contain the following files INSTALL INI QCLxx ABL IMG QCLxx APP IMG QCLxx INSTALL INI NOTE Q...

Page 22: ...22 MECHANICAL SPECIFICATIONS 0 72 3 89 0 66 16 8 3 92 99 6 6 10 154 9 8 49 215 6 Dimensions are in inches mm Tolerance is 5 8 860 225 0 3 47 88 14 8 860 225 0 16 35 415 16 35 415 17 72 450 3 47 88 14...

Page 23: ...patibility tested to IEC 61000 3 2 and IEC 61000 3 3 IEC 61000 4 2 IEC 61000 4 3 IEC 61000 4 4 IEC 61000 4 5 IEC 61000 4 6 and IEC 61000 4 8 European Council Directive 2014 35 EC 26 February 2014 on L...

Page 24: ...tion contained in this document is subject to change without notice Wavelength will not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishi...

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