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High Power 75 Amp Laser Diode Bar & Array Controller with CW and QCW Modes and TEC Controller

  • laser diode driver and TEC controller, Model LDC-489
  • LDC-489 High Power Laser Diode Bar Controller
  • oem driver for high power laser diodes top view
  • High Power Laser Diode Array Controller Connections
  • High Power Laser Diode Driver LabView Software

$2435.00  
sku / item#: LDC-489
ships: Request a Quote for Current Ship Date

Key Features
  • Up to 75 Amps (CW) with 150 Watt TEC Controller
  • Designed for High Power Bars and Arrays
  • CW and Quasi-CW Modes
  • Pulse Widths 25 μs to CW
  • RS232 Interface with LabVIEW Drivers, USB Control Available as an Option
  • Previously Sold as PN: LDC-160

Price and Delivery Quote

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Select Cables and Accessories for this Controller


This cable is also available terminated on the
controller end with a 15-pin d-sub connector (male) and
15-pin d-sub connector (female) on the device-end (kab-231).


This cable is also available terminated on the
controller end with a 15-pin d-sub connector and
unterminated on the device-end (kab-39).

Technical Questions for this Product

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Why do Scientists & Engineers Choose Laser Lab Source?

MODEL LDC-489
PRICE $2435.00
LASER DIODE CURRENT output
  • Output Current Range: 0.00 - 75.00 Amps
  • Compliance Voltage Range: 0.12 - 4.00 Volts
  • Current Noise & Ripple (rms): < ± 0.5% of Full Scale Current
  • Setpoint Accuracy: ± 0.5%
  • Current Setpoint Resolution: 18 mA
  • Current Stability (4 hours): ≤ 200 ppm
  • Current Limit Setpoint Accuracy: ± 2%
  • Photodiode Current Measurement Accuracy: ± 0.5%
  • Photodiode Current Measurement Range: 0.00 - 700 μA
INTEGRATED LASER DIODE PROTECTION FEATURE
  • Soft-Start Current Ramp Factory Default Set to 300 Milliseconds; User Adjustable
  • User-Programmable Current Limit
  • Open Circuit Detection; Short Circuit when Laser Diode Current Turned OFF
  • ESD and Power Surge Clamp, AC Line Filter
  • Reverse Voltage Transient Clamp
  • Temperature Limits (Upper and Lower)
  • Safety Interlock Connection
TEC CONTROLLER
  • TEC Output Power Total: 150 Watts
  • TEC Output Current Range (bipolar): ± 8.00 Amps
  • TEC Output Voltage Range (bipolar): ± 24.00 Amps
  • Temperature Sensor Inputs: 10 kΩ Thermistor, NTC, PT100, PT1000
  • TEC Control Loop Algorithm: Full P.I.D.
  • P.I.D. Variables: User Adjustable to Optimize Temp. Settling Speed
  • TEC Setpoint Resolution: 0.01°C
  • Temperature Range: -25°C to 150°C
  • Factory Set Default Lower Temperature Limit: 5°C
  • Factory Set Default Upper Temperature Limit: 35°C
QCW PULSE MODE AND MODULATION
  • QCW Pulse Width: 25 μsec to CW
  • Pulse Time Base Accuracy: ± 1.0%
  • QCW Mode 1: User Adjustable Pulse Width and Repetition Rate using Internal Pulse Generator
  • QCW Mode 2: External Trigger to Internal Pulse Generator: Rising Edge Triggered QCW Pulse with Internally Adjusted Pulse Width
  • Modulation Input: BNC, Digital (TTL) or Analog, 10kΩ Impedance
  • ---------------------------------------------------------------------------------------------
  • Modulation Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
  • Analog Modulation Bandwidth: 1 Hz – 20 kHz
Auxiliary Functions
  • Temperature Sensor Input: 10kΩ NTC Thermistor
  • Photodiode Cathode (Analog Connected to Gnd)
  • Pilot Laser Anode, vs. Ground: (4 - 5V, 150 mA)
  • Modulation Input
  • Electronic Safety Interlock
  • RS232 Connections
  • External Fan Control Circuit, 2 - 24V, 800mA (max)
USER INTERFACE and Connectors
  • RS232 Standard
  • LabView Drivers Included
  • Laser Connector: DB-9W4, Female
  • Support and Peltier Connector: SubD-15, Female
  • Main Power Connector: MOLEX Housing 10013036; Terminal 8701031
DIMENSIONS AND power INPUT
  • Power Input: Universal 90V ~ 230 VAC, 50/60 Hz
  • Dimensions: 85 mm (H) x 105 mm (W) x 204mm (L)
Recommended Accessories
  • kab-39 Unterminated Connecting Cable -or-
    kab-231 Terminated Connecting Cable

Product Overview:

High Power 75 Amp Laser Diode Bar & Array Controller Overview

These high power controllers were designed for power laser diode bars and arrays which require high current, and provide industry-leading safety features to protect your high-power laser diode devices.

Protection Features for High Power Laser Diodes

The driver includes laser diode protection features such as current limit, soft start current ramp, and power surge filters to make sure that your laser diodes are protected at all times. The soft-start current ramp is pre-set at the factory to 300 milliseconds, but is user-adjustable. This current ramp-up and ramp-down function is designed to protect the laser from thermal shock during power-up and power-down sequences.

The 75 A laser driver includes a temperature sensor input and user-adjustable temperature limit to safely shut down the current source if the laser exceeds the desired operating temperature.

Laser Driver Features

The current output can be set to a (CW) continuous wave mode or can be set to run in a quasi-CW mode. The QCW mode can be triggered externally or internally using an on-board pulse generator. The driver delivers clean pulses with pulse widths from 25 μsec to CW.

TEC Controller for Precise Temperature Control of Laser Bars

The TEC controller is a bipolar +/- 8 amp and 24 volt controller designed to work with Peltier coolers mounted under or inside the bar or array device. The full PID control loop settles the temperature quickly and keeps the temperature at the desired set-point. Although they ship with factory set default PID variables, the user can adjust each variable to optimize the settling time of the temperature control loop.

Affordable High Power Controller for Laboratory R&D or Laser System Integration

These units are an ideal choice for a small form factor, high power laser control module for use in the lab for R&D or for use in a laser system product. They include mounting brackets to mount inside a equipment chassis or can be used stand-alone on an optical bench. They come with LabView drivers and a simple to operate graphical user interface. We offer multiple actively cooled compatible heat sinks which are available to be directly connected to the controller. Also, there are compatible low impedance cable options for optimizing QCW mode pulses.

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