- ≤ 3 Nanosecond Output Rise time
- Single Shot to 5 kHz Repetition Rates
- EMI/RFI Shielded Enclosure
- 5 kV & 8 kV Output Voltage Models
- Works on +24 VDC Power Supply
- High Reliability – >10 Year Lifetime
Model 5056 Q-switch Driver Modules integrate high voltage MOSFET circuits and self-contained
miniature high voltage power supplies which require only +24 volts DC input. Trigger signals
can be TTL level voltages. The 5056 is intended for stand-alone operation with the company’s
Series 1058, 1059, 1145, 1147 and 3900 electro-optic Q-switches operating at repetition
rates between single-shot and 5 kHz repetition rates. It will also drive similar Pockels cells from
other manufacturers. All circuits are packaged in an electrically shielded enclosure which
attenuates EMI/RFI to minimize radiated and conducted switching noise. The 5056 Output
voltage is conveniently adjusted by a front panel mounted miniature potentiometer.
The 5056 features a balanced output, i.e., there are 2 independent output connections, one for
each terminal on the Q-switch. The static, unswitched HV outputs have identical HV DC
levels which produce a zero net differential voltage across the crystal. Two other modes of
operation are available without modifications.
Referring to circuit diagram on page 2; when a trigger signal is applied, Side 1 switches from the
pre-adjusted HV level to ground and then, between laser pulses, is allowed to recover to its
original value.
Side 2 always remains at the original HV level so that during the time Side 1 is at the ground level
(‘ON’ Time), pre-set retardation voltage is applied to the crystal. The Q-switched pulse is
generated during the ‘ON’ time. Given an appropriate Q-switch, the 5056 permits
operation at the ¼ or ½ wave retardation voltages or at any voltage in this range. The
8,000 Volt Model 5056-8 will produce pulsed voltages suitable for ½ wave retardation at 1064 nm.
MODEL 5056 SELF-CONTAINED HV SWITCHING MODULE Q-SWITCH DRIVER DATA SHEET (PDF)
