QBU Pockels cell driver series is specially designed to control Pockels cells by applying a fast switching high voltage. The modules require +24 V DC power supply and pulse generator to set an operating frequency and pulse width. An output voltage level can be programmed in working range by user either manually (through onboard configuration trimpot) or remotely (applying a DC voltage to the respective pin).

Triggering by an external low voltage arbitrary TTL signal allows modules to work in next scenarios:

• push-up (= normally off scheme), when a base voltage level equals to zero


• pull-down (= normally on scheme), when pulses from base bias voltage to ground are generated


• user-defined scheme, with arbitrary width and frequency of pulses.

QBU Pockels cell driver series is based on MOSFET technology and offers high repetition rates and fast transition time (< 15 ns) for both pulse edges.

We have also a compact version 4kV QBU-mini Pockels cell driver, a high voltage 10kV QBU-10kV Pockels cell driver and a GaN 3-4ns fast Pockels cell driver QBY.