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1.5 Amp CW and Pulsed Mode Laser Diode Driver

  • CW and Pulsed Laser Diode Driver Top View of Module
  • Schematic for Pulsed Laser Diode Driver Module
  • Driver Software
  • CW and Pulsed Laser Diode Driver Current
  • Mainframe for Pulsed Current Driver Modules

Request Price   Ships: 2 Weeks | Model RLS/LDD-1124

Key Features
  • Output Current: 0 to 1.5 Amps, <1% Noise and Ripple
  • Output Voltage: 0 to 15 Volts
  • CW Current Set-Point Resolution: 30 μA
  • Pulse Repetition Rate: DC to 10 kHz
  • USB and RS485 Digital Interface Connectors with Control Software Included

Price and Delivery Quote

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MODEL RLS/LDD-1124
PRICE Request Price
General SPECIFICATIONS
  • Laser Diode Output Current Range: 0 - 1500 mA
  • Laser Diode Compliance Voltage Range: 15 Volts
  • CW Current Set-Point Resolution: 30 μA
  • Temperature Coefficient: Typ: 15 ppm/K
  • Pulse Mode Rise Time: 45 Nanoseconds
  • Pulse Frequency: up to 10 kHz
DIGITAL INTERFACE
  • Digital I/O: USB and RS485
  • Control and Monitoring Software: Included
DC POWER SUPPLY REQUIREMENT
  • DC Input Voltage: 12V to 24 VDC
Dimensions
  • (L x W x H): 120 mm x 90 mm x 18 mm

Product Overview:

The LDD-1124 is a specialized laser diode driver able to bias semiconductor lasers in a pulsed mode of operation. It can also be operated in standard continuous wave (CW) mode. The core design element of the module's internal current source is the ability to generate highly precise 333 picosecond timing steps that result in 30 μA resolution and very low ripple. These modules are offered with an option to add a photodiode measurement circuit. The modeo LDD-1124-SV-LPC can also be operated as a laser power supply and laser power controller. All of the model LDD-1124's offer robust LD safety features, including an input for laser diode temperature monitoring. They are fully digitally controlled and their firmware can be upgraded to meet specific customer requirements.

Laser Diode Protection:
To provide the highest level of protection for the LD, the monitoring and correction of critical system parameters is directly implemented in hardware. Critical parameters include current, voltatge and temperature limits. The implementation of protection through firmware (not software) results in very fast switch-off times of < 8 microseconds in the event that a limit value violation is detected. These modules also monitor laser diode temperature (NTC thermistor input) and will shut-off if a preset value is exceeded.

Control Software:
The LDD Service Software is a powerful tool that allows monitoring and full configuration of the LDD-1124 using a standard USB or an RS485 connection. It is included with the purchase price of the LDD module. This tool is ideal for laboratory setups, product evaluation, diagnosis, debugging and commissioning. Key functionalities include:
- Laser diode driver output configuration; datat import and export
- Data logging with trigger functionality
- Error codes and built-in descriptions
- Hardware configuration (e.g. calibration)
- Maintenance (e.g. firmware upgrades)

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