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High Voltage Laser Diode Driver, 14 Amps with 24 Volts Compliance Voltage Range

  • Laser Diode Driver Model LDC-157
  • laser diode driver high power overview features
  • 14A Benchtop Laser Diode Driver
  • laser diode driver labview software
  • High Compliance Benchtop Laser Diode Driver

sku / item#: LDI-127
ships: Request a Quote for Current Ship Date

Key Features
  • Enhanced Protection Features Designed Specifically for High Voltage, Multi-Emitter Laser Diodes and Series Connected Lasers
  • Compliance Voltage Range up to 24 Volts, Current Range up to 14 Amps
  • CW and QCW Modes of Operation // USB and RS232 Interface, LabVIEW Drivers

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).

This cable is also available terminated on the controller
end with a 2W2 d-sub connector (male) and a
2W2 d-sub connector (female) on the device end (kab-297).

This cable is also available terminated on the controller
end with a 2W2 d-sub connector (male) and unterminated
on the device-end (kab-286).

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Why do Scientists & Engineers Choose Laser Lab Source?

PRICE $2725.00
  • Compliance Voltage Range: 0.00 - 24.00 Volts
  • Output Current Range: 0.00 - 14.00 Amps
  • Current Noise & Ripple: 1% to 0.01% of Imax (rms)
  • Current Setpoint Resolution: 3.5 mA
  • Current Setpoint Accuracy: ± 0.5%
  • Current Stability (4 hours): ≤ 100 ppm
  • Current Limit Setpoint Accuracy: ± 2%
  • Programmable Soft-Start Current Ramp to Set Point (300ms Default)
  • Independent Pilot Laser Output (5V, 150mA max)
  • User-Programmable Current Limit
  • Open Circuit Detection
  • ESD and Power Surge Clamp, AC Line Filter
  • Reverse Voltage Transient Clamp
  • Rear Panel Keylock Switch and Safety Interlock
  • Short Circuit when Laser Diode Current Turned OFF
Internal pulse mode
  • Pulse Width Range: (model specific) 10 µs - 71 minutes
  • Pulse Period Range: Pulse Width + 100 µs
  • Time Base Accuracy: ± 1%
  • Pulse-to-Pulse Accuracy: 30 µs
  • Pulse Rise Time: ~ 18 µs
  • Pulse Fall Time: 70% - 100% of Rise Time
  • QCW Mode Rise / Fall Time: 20μs to CW, 10%-90% (< 5μs on request)
  • QCW Trigger: Internal Pulse Generator or External
  • Modulation Input (BNC): Digital (TTL) or Analog
  • Modulation BNC Input Impedance: 10K
  • ---------------------------------------------------------------------------------------------
  • 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
  • External Fan Control Circuit, 1 - 24V, 300mA (max)
  • Laser-On External LED Indicator: 5mA Output
  • Pilot Laser Anode, vs. Ground
  • Photodiode Current Measurement Accuracy: ± 0.5%
  • Photodiode Current Measurement Range: 0.00 - 700 μA
  • Front Panel: Alphanumeric LCD
  • RS232 Standard
  • USB Optional: $95.00 (Option SVC-USB)
  • LabView Drivers Included
  • Universal 110V ~ 240 VAC Input
  • 95mm (H) x 119mm (W) x 280mm (L)
Recommended Accessories
  • kab-39 Unterminated Connecting Cable -or-
    kab-231 Terminated Connecting Cable
  • kab-286 Unterminated Power Cable -or-
    kab-297 Terminated Power Cable
  • acc-417 USB-RS232 Converter

Product Overview:

LDI-127 High Power Laser Diode Driver Overview

The LDI-127 laser diode driver is designed with high compliance voltage to precisely and safely bias multi-single emitter lasers from companies such as nLight, Lumentum and II-IV. The LDI-127 can also be used to drive multi-emitter devices wired for series operation.

Modulation, Internal Function Generator, and QCW Pulse Modes

In addition to CW (continuous wave) mode of operation, the LDI-127 laser diode controller offers flexible modulation capabilities and a QCW mode. The rear panel of the controller has a BNC input for an analog or TTL digital modulation, DC up to 50 kHz, input with a 10k Ω input impedance.

The controller has an internal function generator which can be used to drive quasi-CW pulses in continuous, single, and burst-mode. In QCW mode, the user can also set 25μs-to-CW pulses to trigger from a remote TTL signal source.

Laser Diode Protection Features

These units offer the highest level laser diode protection available to ensure that your device under test is protected at all times. Soft-start current, current and temperature limits, and a fast shut-down sequence keep your device protected at all times. Additionally, transient filters and AC line filters protect the laser against brown-out or black-out power conditions.

A back-panel safety interlock connector ensures that the laser diode current is not switched on until the user has determined it is safe to do so.

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.

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