Home  >  Laser Diode Drivers  >  OsTech   >  RLS/LDC-154


120 Amp Laser Diode Driver; Enhanced Protection Features Designed Specifically for High Power Laser Bars and Arrays

  • LDC-154 Controller front panel
  • Coherent DILAS laser diode driver rear panel
  • LDC-154 Controller rear panel
  • 120 amp laser diode driver current source rear panel
  • Coherent and DILAS laser diode bar driver current source

sku / item#: RLS/LDC-154
ships: 3 weeks

Key Features
  • 120 Amp Current Source Optimized
    for Laser Diode Bars and Arrays
  • CW Output, and Integrated QCW Pulse Generator
    and Remote Trigger Input
  • User Configurable Soft-Start Current Ramp
    and Enhanced High Power Bar Protection Features
  • RS232 Interface with LabVIEW Drivers
  • Optional USB Interface available
  • Offered by OsTech, a Laser Lab Source Marketplace Seller
  • Sold & Supported in North America by: LaserDiodeControl.com, part of the
    Laser Lab Source Marketplace Group

Price and Delivery Quote

Buy Now / Add to Cart

Technical Questions for this Product


Customers Also Considered:

Why do Scientists & Engineers Choose Laser Lab Source?

PRICE $3345.00
  • 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 < 25 μs to CW, 10%-90% (< 20 μs 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; LabVIEW Drivers Included
  • USB Optional: $95.00 (Option SVC-USB)
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:

120 Amp Laser Driver Overview

The affordable LDC-154 laser diode drivers provide a maximum output of 120 Amps, 4 Volts, and can operate in high power CW (constant current) or QCW mode. They are designed specifically to safely drive fiber coupled bar modules and CCP style copper mount bars from companies such as DILAS and Coherent.

LDC-154 Driver Features

The LDC-154 can drive full CW power up to 120 Amps, and the integrated function generator can be programmed to generate QCW pulses from 25 microseconds to CW. The QCW pulse mode feature is capable of delivering 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.

The LDC-154 also offers 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. There is an interlock safety connection as well as a front panel Emergency-Stop kill switch to ensure the laser is operated only when the user has determined it is safe to do so.

Laser Driver Control User Interface

The LDC-154 front-panel controls provide fast and simple setup, and an RS232 interface with LabView drivers is included standard. The LabView GUI makes set-up and control of the system fast and simple. An optional USB digital interface is available; inquire for details on ordering the USB control option.

Controller Power Interface

The LDC-154 utilizes high current M4 style connectors on the rear panel.

A 15-pin D-sub connector is included for ancillary control functions, including external photodiode measurement, Laser-On Indicator LED, temperature sensor input, and an external cooling fan control.

Why do Scientists & Engineers Choose Laser Lab Source?

  • Get DIRECT, Fast Tech-Support from the Product Engineer, No Sales Person in the Middle

  • Get the Lowest Price, Factory Direct, No Mark-Up's, Suppliers Post their Own Price

  • Get a 30 Day Evaluation Period with No Risk Return on Most Products, Check Availability