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120 Amp Laser Diode Bar and Array Driver; High Power CW & QCW Current Source

  • Coherent DILAS laser diode driver rear panel
  • 120 amp laser diode driver current source rear panel
  • Coherent and DILAS laser diode bar driver current source

$3395.00   Ships: 2 weeks | Model LDC-154

Key Features
  • 120 Amp Current Source Optimized for Laser Diode Bars and Arrays
  • User Configurable Soft-Start Current Ramp and Enhanced High Power Bar Protection Features
  • CW and QCW
  • QCW Pulse Width Range 25 μs to CW
  • Integrated QCW Pulse Generator and Remote Trigger Input
  • RS232, USB, LabView Drivers

Price and Delivery Quote

You will receive factory-direct price with no mark-ups

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PRICE $3395.00
  • Output Current Range: 0.00 - 120.00 Amps
  • Compliance Voltage Range: 0.00 - 4.00 Volts
  • Current Noise & Ripple (rms): < ± 0.5% of Full Scale Current
  • Current Setpoint Resolution: 30 mA
  • Current Setpoint Accuracy: ± 0.5%
  • Current Stability (4 hours): ≤ 300 ppm
  • Current Limit Setpoint Accuracy: ± 2%
  • Photodiode Current Measurement Accuracy: ± 0.5%
  • Photodiode Current Measurement Range: 0.00 - 700 μA
  • Soft-Start Current Ramp to Setpoint (User Programmable)
  • Soft-Start Current Ramp Factory Default Set to 300 Milliseconds
  • Current Limit
  • Open Circuit Detection
  • Short Circuit when Laser Diode Current Turned OFF
  • ESD and Power Surge Clamp
  • Reverse Voltage Transient Clamp
  • AC Line Filter
  • Rear Panel Keylock Switch and Safety Interlock
  • Front Panel e-Stop Button Emergency Shut-Down
QCW (QUASI-CW) MODE and modulation
  • Pulse Width Range < 25μs to CW, 10%-90% (< 20μs on request)
  • Integrated Function Generator
  • Pulse Time Base Accuracy: ± 1.0%
  • QCW Mode Trigger: Internal (Integrated) Function Generator or External Trigger
  • MODULATION Input: Digital (TTL) or Analog
  • MODULATION Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
  • MODULATION CONNECTOR: BNC, Rear Panel, 10 kOhm Input Impedance
  • Front Panel Alphanumeric LCD with Key Pad Buttons
  • RS232 Standard
  • USB Optional: $95.00 (Option SVC-USB)
  • LabVIEW Drivers Included
GENERAL specifications and connectors
  • Input Power: Universal 98VAC ~ 230 VAC, 50/60 Hz
  • Dimensions: 200mm (Width) x 175mm (Height) x 270mm (Depth)
  • Weight: ~ 10 kg
  • Laser Bias Current Output Connector: M4
  • Control Signals Connector: D-Sub, 15 Pin Female

Product Overview:

These affordable laser diode drivers offer a maximum output of 120 Amps, 4 Volts and can operate in high power constant current or QCW mode. They are designed to power laser bars and arrays requiring high current ranges with low voltage. They offer an integrated function generator for generating QCW pulses from 25 microseconds to CW. They also run full CW power up to 120 Amps. They are designed specifically to safely bias fiber coupled bar modules and CCP style copper mount bars from companies such as DILAS and Coherent. These units come with a front panel that is easy to operate as well as both RS232 and USB digital interface. They include LabView drivers. The internal QCW pulse generator offers 25 μs to CW rise time and fall times for slow pulse driving of laser diode bars. The QCW pulse mode feature is capable of delivering and supporting continuous pulses, single pulses and pulse bursts which are internally or externally triggered.

Customized Protection for High Power Laser Bars and Arrays:
These current sources feature multiple levels of built-in laser diode protection which have been optimized for bars and arrays. One of the unique features is a user programmable soft-start ramp of the bias current to the device under test. The factory sets the ramp time to 300 milliseconds as a default, but the user can adjust this time period from 1 millisecond up to 10's of seconds. This current ramp up and down function is designed to protect the laser from thermal shock during power up and down sequences. In addition to this soft-start ramp, these drivers offer features such as current limit, a brown-out and black-out power surge clamp, AC line filters and a fast response to shunt the current in the event of an open circuit. The LDC-154 utilizes high current M4 style connectors on the rear panel and there are multiple cabling options available to ensure reliable connection to your device under test.

User Interface:
These systems come with a standard RS-232 interface and can be ordered with an optional USB interface. LabView drivers are available at no charge. A LabView GUI makes set-up and control of the system fast and simple. The user also has complete control through an intuitive front panel menu / LCD display with a key pad.

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