The LDG-XXXX/QCW High Power QCW Laser Diode Driver features a built oscilloscope and a huge capacitor bank providing up to 10KW CW/1MW QCW with a very stable and precise current

  • Powerful QCW Capacitor Charging Power Supply: Up to 1MW QCW, communicates closely by the feedback circuit to keep a stable and precise constant current to the load
  • Huge Capacitor Bank: up to several hundred Farad for the Best Current Droop at High Current & Long Pulse
  • Ultar-Wide Pulse at huge current up to 60mseconds at 1.3KA
  • High Power/High Speed LD Driver: 500V/500A at 100ns rise/fall time
  • Competitive Price

Key Features

  • Built in Oscilloscope: Don’t need any expensive instruments to measure & watch the LD waveforms!
  • 1.3KA/60ms cuurent pulse with 1% Current Droop!!
  • Non-USB Operation: Good for the special areas where any computers devices are not allowable
  • High Performance Digital Scope Standard:  3.5ns/100MHz monitor scope as standard, 1.75ns/200MHz, and 0.7ns/500MHz scope as an option
  • High speed current sensing device to sense and display in real time.  Output current is sampling and regulated every micro-seconds.  This technique guarantees the precise constant current control for customer’s wide range of Laser diodes.

2.7KA/800us Long Pulse Waveform

2.7KA/800us Long Pulse Waveform

1.3KA/60ms Ultra Wide Pulse Waveform

1.3KA/60ms Ultra Wide Pulse Waveform

LDG-XXXX/QCW High Power QCW Laser Diode Driver Specifications

High Power Laser Diode Driver Specification


CW average power: Up to 25KW (Water Cooled), Up to 10KW (Air Cooled)
QCW power: 250KW
QCW output voltage: up to 2KV
QCW output current: Up to 2KA
QCW pulse rate: Single Shot to IMHz Maximum, +/-50ppm accuracy
QCW rise/fall time: IOOns-50us depends on the models
QCW pulse width: lus — 10 seconds depends on the models
QCW pulse duty: up to 100%
QCW current droop: 0.1% to 15 % depends On the models
CW Output voltage: up to 2KV
CW Output current: up to 200A
Ripple Current: 0.5% to 5% depends on the models
Operating mode: QCW & CW
AC input voltage: 220V +/- 10%, three phase
Capacitor charging power supply: Built in, Up to 25KJ/S (Watercooled), 10KJ/S(Air Cooled)
Output voltage selection: 30%,60%, 100% optional
Protection circuits: 1) Switching over currents, 2) Load over currents, 3) Over load,
4) Over temperature, 5) Pulse width/pulse rate, 6) interlock
7) others (total 15 parameters) Refer to manual for detail.
Current monitor sensitivity: Depends on the models


Cooling: Forced air
Output cable: Custom made stripline 1m
Ambient operating temperature: 0-40 ‘C
Storage temperature: 0-80
Ambient humidity: Less than 80% (not condensed)
Dimensions: 8.7″ (H) x 17.0″ (W) x 17.7″ (L)
*1) Current droop depends on the pulse width selected.
*2) N/A
*3) N/A

Oscilloscope Part

Rise time/bandwidth: 3.5ns/100MHz
Sampling rate: IGs/s
Vertical resolution: 8bit
Input sensitivity: 2mV/d iv-10V/div (10 vertical division)
Time base ranges: 2.5ns/div-50s/div
Display: 8 inch TFT color LCD, 800X600 VGA
Time base accuracy•: IOOppm
Sampling jitter: N/A
Waveform buffer: 10M record length
Trigger: Edge, Window, Pulse width, Window pulse width, Dropout, Window dropout, Interval, logic, Runt pulse
Pulse generator: N/A
Spectrum analyzer: N/A