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Pump Laser Diode Driver, Precision 20 Amp Current Source

  • Laser Diode Driver for 980nm Pumps
  • Laser Diode Driver for 980nm Pumps Rear Panel
  • Laser Diode Driver Connectors
  • Laser Diode Driver for 980nm Pumps Software

$1795.00   Ships: 10 days | Model LDC-158

Key Features
  • Integrated Protection Features which are Optimized for 808nm ~ 980nm Pump Laser Diodes
  • Drive Current Output 0 ~ 20 Amps
  • CW and QCW Modes of Operation
  • RS-232 Interface, USB Optional, Includes LabVIEW Drivers

Price and Delivery Quote

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

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MODEL LDC-158
PRICE $1795.00
LASER DIODE CURRENT OUTPUT
  • Current Output Range: 0.00 - 20.00 Amps
  • Compliance Voltage Range: 0.00 - 6.00 Volts
  • Current Noise & Ripple (rms): < ± 0.5% of Full Scale Current
  • Current Setpoint Resolution: 5 mA
  • 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
INTEGRATED LASER DIODE PROTECTION FEATURES
  • Soft-Start Current Ramp to Setpoint (User Programmable)
  • Soft-Start Current Ramp Factory Default Set to 300 Milliseconds
  • Current Limit
  • Open Circuit Detection
  • ESD and Power Surge Clamp
  • Reverse Voltage Transient Clamp
  • AC Line Filter
  • Rear Panel Keylock Switch and Safety Interlock
  • Short Circuit when Laser Diode Current Turned OFF
MODULATION AND QCW MODE
  • MODULATION Input (BNC): Digital (TTL) or Analog
  • MODULATION BNC Input Impedance: 10K
  • MODULATION Input Voltage Range: 0 ~ 4 Volts (4V = Max Current)
  • MODULATION Bandwidth: 25 kHz
  • QCW Pulse Width: 25μs to CW, 10%-90% (< 10μs on request)
  • QCW Trigger: Internal Pulse Generator or External
USER INTERFACE
  • Front Panel: Alphanumeric LCD with Key Pad
  • RS232 Standard
  • USB Optional: $95.00 (Option SVC-USB)
  • LabView Drivers Included
DIMENSIONS AND POWER INPUT
  • Power Input: Universal 100V ~ 240 VAC, 50/60 Hz
  • Dimensions: 85mm (H) x 105mm (W) x 200mm (L)

Product Overview:

The LDC-156 series driver is an affordable precision current source which offers up to 20 amps and 6 volts of power to bias your laser diode. They have industry leading protection features to make sure that your high power device is not damaged by AC line power surges, over-current, reverse transients and multiple other potential sources of harm to the laser. This model includes an RS-232 digital interface with an option for a USB interface. In addition to the continuous wave (CW) DC current mode of operation, the LDC-156 also includes a Quasi-CW mode with a built-in function generator that can deliver pulses from 25 µs to CW. It has a BNC input on the rear panel which allows the user to apply an analog or digital modulation signal which can be used to dither the drive current. These drivers are designed with multi-stage filtering to deliver low noise, high stability current to the laser diode.

Designed to Safely Bias 808nm ~ 980nm Pumps:
The LDC-156 was designed specifically for fiber coupled and free-space pump laser diodes in the 808 ~ 980 nm range from companies such as LUMICS, Lumentum/ JDSU and II-VI. It has a fast feedback analog control loop which detects open circuit conditions and immediately shorts the drive current. The user can set the current soft-start ramp time period or can use the default factory setting of 300 milliseconds. The user programmable soft-start current ramp is designed to allow the user to optimize the ramp time to avoid thermal shock to the laser. Thermal shock can result from quickly ramping the drive current and the subsequent heat generation which occurs before the temperature of the device under test can be stabilized. The internal function generator on the LDC-156 provides the user with the flexibility to run the laser in multiple modes such as "hard-pulse" or microsecond pulsing QCW mode. Also, sequencing software is available to allow the user to set a string of desired current set-points. The unit auto-sequences through a pre-set range of current points for the pre-set dwell times for each point. Compatible heat sink options with interface cables are available for most fiber coupled laser package styles.

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