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Precision Laser Diode Driver Module with 1500mA Output Current Range & up to 14V; Comes with RS232 + LabView Drivers (GUI)

  • LDC-164 Laser Diode Driver Front View
  • laser diode driver connectors
  • High Power Pump Laser Diode Driver Pinout
  • 1500mA Pump Laser Diode Connectors
  • labview drivers software

sku / item#: LDI-186
ships: Request a Quote for Current Ship Date

Key Features
  • 1,500 mA Laser Diode Current Source
  • Soft Start Current, Current Limit, and Power Surge Clamp for Laser Diode Protection
  • Compact: 44 x 105 x 164 mm
  • Operates from 24 VDC Power Supply
  • RS232 Interface with LabVIEW Drivers; USB Optional
  • Previously Sold as PN LDC-164

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


Customers Also Considered:

Why do Scientists & Engineers Choose Laser Lab Source?

PRICE $1269.00
Laser Diode Current Output
  • Output Current Range: 0.00 - 1500.00 mA
  • Compliance Voltage Range: 14.00 Volts
  • Current Setpoint Accuracy: ± 0.5%
  • Current Noise & Ripple (rms): < ± 0.5% of Full Scale Current
  • PD Power Monitoring Included
  • Current Setpoint Resolution: 4 μA
  • Current Stability (4 hours): ≤ 100 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
  • 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
  • Electronic Safety Interlock Connection
  • Short Circuit when Laser Diode Current Turned OFF
  • QCW Mode Rise/fall: <15 µs (optional <5µs)
  • Integrated QCW Pulse Generator, Also Accepts External Trigger for QCW Pulses
  • 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
  • Laser Active LED Output; 4 - 5V, 5mA Output
  • Pilot Laser Anode, vs. Ground: (4 - 5V, 150 mA)
  • Temperature Sensor Input: 10kΩ NTC Thermistor
  • External Fan Control Circuit, 1 - 24V, 500mA (max)
  • RS232 Standard: SubD-9, Female
  • LabView Drivers Included
  • USB Optional: $95.00 (Option SVC-USB)
  • Laser Connector: SubD-15, Female
  • Power and Support Connector: SubD-9, Male
  • RS232 Connector: SubD-9, Female
Input Power Requirements
  • The LDI-186 requires a 24 VDC power supply; the power supply can be supplied by the customer or it can be purchased as an option with the LDI-186 ~ please refer to the link to the RLS/LDC-PS120 on right side of this product page to see the optional power supply
  • 44 mm (Height) x 105 mm (Width) x 160 mm (Depth)
Recommended Accessories
  • kab-39 Unterminated Connecting Cable -or-
    kab-231 Terminated Connecting Cable
  • nt-82 24 VDC / 90 W Power Supply
  • acc-417 USB-RS232 Converter

Product Overview:

1500 mA Precision Laser Diode Driver Module Overview

The LDI-186 laser diode driver is an affordable bias current source for semiconductor lasers, and includes industry-leading safety features to protect the laser diode across a wide range of operating conditions. The driver delivers a maximum output power up to 1.5 amps and up to 14 volts of compliance voltage.

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.

Modulation, Internal Function Generator, and QCW Pulse Modes

In addition to CW mode, the LDI-186 includes an internal function generator which can be used to operate the laser diode in a QCW (pulsed) mode with user-set pulse width from 15 microseconds to CW. The rear panel d-SUB connector has dedicated pins for an external modulation function generator to be applied to the bias current driving the laser.

User Interface:

The user has the choice of using the standard RS232 serial interface on the rear panel, or ordering the optional USB interface. The LDI-186 includes LabView drivers with a simple to use graphical user interface (GUI). All of the laser diode control parameters can be set and monitored using the GUI, including bias current set-point, current limit, slow-start current ramp time, and modulation. If the user does not have LabView, a serial command set is provided in the manual for the user to control the driver.

Why do Scientists & Engineers Choose Laser Lab Source?

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