STA-PCD-1 - Pockels Cell Driver

Pockels Cell Driver
High-voltage pulse is formed by a symmetrical, bipolar output in «Switch-On» operational mode
Single supply voltage range +5 V to +7.5 V
Built-in, pulsed HV-Source
Adjustment of a high-voltage pulse either directly on the board (through built-in potentiometer) or remotely
Significantly reduced electro-magnetic noise
Positive logical trigger 3 ÷ 8 V
Highly reliable topology
Ultra-compact size – designed for handheld Q-switched laser heads

Pockels cell driver STA-PCD-1 has been designed for cavity dumping and Q-switching of solid-state lasers equipped with electrooptical Q-switches based on BBO or DKDP crystals. The modified version STA-PCD-2 provides unipolar output and may be used with Q-switches and modulators based on RTP, KTP, LITA, LNB crystals.
The device could also be used as a generator of nanosecond electrical pulses.

View wiring diagram View output diagram View transmission graph

Parameter Model
Output voltage amplitude 1, 1a 2800 ÷ 3800 V 1400 - 1900 V
Output voltage pulse-to-pulse instability 1 %
Max pulse current 20 A
Max load capacitance 20 pF
HV pulse rise time 2 2 ÷ 4 ns
HV pulse duration (factory-set) 3 0.5 ÷ 1 μs
HV pulse fall time 3 ÷ 6 μs
Max HV pulse repetition rate 2 kHz
Trigger voltage (input impedance is 200 Ohms) 3 ÷ 8 V (+5 V)
Output pulse delay vs. trigger pulse 4 15 ÷ 30 ns
HV pulse jitter < 200 ps
External powering requirements:
   Low voltage DC supply +5 to +7.5 V
   Low voltage DC supply current
      at a repetition rate of 100 Hz 180 mA
      at a repetition rate of 1 kHz 260 mA
      at a repetition rate of 2 kHz 340 mA
Operating temperature range 10 ÷ 40 °C
Dimensions 30 x 50 x 8 mm
Mounting hole pattern (Ø 3.2 mm) 24 x 44 mm

1 is set from the built-in potentiometer or remotely
1a max. output voltage amplitude could be achieved while driver is supplied with +7.5 V voltage
2 depends on the load inductance and output voltage amplitude.
3 is set by manufacturer.
4 Delay depends on the trigger pulse. The higher trigger amplitude the shorter delay.

Related products

RTP EO Q-switch

STA-PCD-1 packaged with BBO based Pockels cell
Ordering Information
Model Output voltage amplitude Package type
STA-PCD-1 2800 ÷ 3800 V PCB Assembly
STA-PCD-2 1400 - 1900 V PCB Assembly

Pockels Cell Driver