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World of Photonics

June 22-25, 2015
Hall B1, Stand 314
  Flashlamp pumping
Flashlamp drivers
Capacitor chargers
Discharge circuits
Simmer supplies
  Pockels cell driving
Pockels cell drivers
Pockels cell driver boards
High voltage switches
Pulse picker and regen amplifier drivers
  Diode pumping
Laser diode controllers
CW laser diode drivers
Pulsed laser diode drivers
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Pockels cell driver boards

QBU-series Pockels cell drivers


  • Q-switching
  • Pulse slicing


  • Extremely flexible solution
  • Push-up and pull-down schemes
  • Up to 6 kV output voltage
  • Up to 100 kHz repetition rate
  • Compact OEM design
QBU-series Pockels cell drivers
 Download PDF user manual


QBU-series consist of several Pockels cell drivers differ with their output voltage range (see also How to order? section) and covering range up to 6.0 kV.

Modules have fast transition times in both directions and repeat at their output external driving TTL signal. As a result they may be used for q-switched lasers of push-up scheme, pull-down scheme as well for mixed-type or other user-defined scheme.

Under conditions of appropriate forced air cooling, low load capacitance and low operating voltage modules may achive performance up to 50 kHz (CW) or 100 kHz (in burst-mode).


Voltage +24VDC
Working modes repetition of external low voltage signal
Voltage, high level regulated, up to 6 kV 1
Voltage, low level fixed, 0 V
Pulse width 1 us - DC
Repetition rate up to 50 kHz (CW), up to 100 kHz (burst-mode) 1, 2
Rise time < 20 ns 3
Fall time < 20 ns 3
Jitter 10 ns (1 ns in LJ-modification)
Delay time 1 us (100 ns in LJ-modification)
Load capacitance up to 0.5 nF 1
Leakage current not more than 150 uA
Operation temperature 0 +40 C (-40 : +50 C in HE modification)
Storage temperature -20 +60 C
Humidity 90 %, non-condensing
Size (LxWxH) 130x80x20 mm
Weight 0.1 kg
1 These parameters aren't indepenent and cannot achieve their maximum at the same time...
2 forced air cooling is required for operating with high repetition rates...
3 10-90% level; warranted at load capacitance 23 pF and below...

 How to order?

Model * Description
QBU-6024 2.4-6 kV high voltage adjustment range
QBU-5020 2.0-5 kV high voltage adjustment range
QBU-4016 1.6-4 kV high voltage adjustment range
QBU-3012 1.2-3 kV high voltage adjustment range
QBU-2008 0.8-2 kV high voltage adjustment range
Option ** Description
-BT Bench-top modification QBU-BT
-LJ Low-jitter modification
-SP Short-pulse modification (pulse width downto 100ns)
-HE Harsh-environment modification
* select one
** select any q-ty of options or none
Example: QBU-5020-HE
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© OEM Tech, last update 24.06.2016