The LWG Series Kilowatt High Power Pulsed Laser Diode Driver delivers incredibly stable output even at maximum output levels for the most demanding applications. Featuring a tight feedback control circuit and minimal current droop, this driver is state of the art.


  • Illuminate Possibilities with Hyper-Power QCW Laser Diode Driver: Huge Power both for CW & QCW of 5-25KW CW/1MW QCW
  • Powerful QCW Capacitor Charging Power Supply for Kilowatt Laser Diode Driver: Tight feedback circuit to keep a stable and precise constant current,
  • Ultra-Fast Response Time: Experience rapid current modulation for instantaneous laser intensity adjustments.
  • Huge Capacitor Bank: up to 500 F (Farad) for the Best Current Droop at High Current & Long Pulse
  • Ultra Long Pulse with Kilo-amps Output: 60ms pulse width at 1.3KA current with 1% current droop!!
  • Touch Panel Control: Optional tablet terminal can be a touch screen control
  • High current/High voltage/High Speed Laser Diode Driver: Up to 2KV/5KA at 100ns-10us rise/fall time
  • Most Popular model: Affordable Price
  • Double Isolated USB 2.0 Interface for highest noise immunity in harsh industrial environments

LWG Series 5-25Kilowatts High Power QCW Pulsed Laser Diode Driver

  • Industrial Innovation: Boost your manufacturing capabilities with cutting-edge laser technology.
  • Built in the Oscilloscope: No need any expensive instruments to measure & watch LD waveforms!
  • Ultra-High Current/Long Pulse: 1.3KA/60ms current pulse with 1% Current Droop!!
  • Easy Control: Everything is controlled by user’s PC, or Optional Tablet Terminal
  • Digital Oscilloscope/Spectrum Analyzer/Pulse Generator as Options: up to 10MHz/60MHz and100MHz-500MHz bandwidth 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.
  • Output Voltage Selection features to maximize the 100% output power at very low output voltage: LWG-XXXX/QCW can maintain 100% of rated output power even at 30% of rated output voltage.  This is also a unique feature of LIC’s LD drivers.

LWG-XXXX/QCW/HP/USB Control Screen

LWG-XXXX/QCW/USB – 2.7KA/800us – Medium Pulse Width Waveform

 LWG-XXXX/QCW/USB – 1.3KA/60ms – Ultra Wide Pulse Waveform


Ultra-High Power Laser Diode Driver Specification:


CW average power: Up to 25KW (Water Cooled), Up to 10KW (Air Cooled)
QCW power: 250KW-1MW
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
Current display: Real time 10 digit A/D converter resolution
Voltage display: Real time 10 digit A/D converter resolution
Trigger mode: Internal pulse, External signal & Manual mode
Sync. output: IKO BNC
Sync. delay: Programmable On AWG window
External trigger input: IKO BNC
Pulse generator output: 2Vp-p, at 6000 impedance
Interface: Isolated USB2.O
Available driver: LabView
Control terminal: Windows base PC and Optional Tablet PC (Windows 7, 8.1 & 10)


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