Gooch & Housego has developed Pockel Cell Drivers to complement its range of Pockels Cells. High quality components are integrated into our short circuit proof designs to maximize lifetime, safety, and reliability. Our Pockels cell drivers are available in several configurations: benchtop drivers, unpackaged, or customized. Drivers have been developed for commercial, military, and scientific Q-switched laser systems.
| Key Features|
|4.5 kV – 1 kHz – 6 ns||Highly reliable – designed to US Navy SD-18|
|Bench top & OEM models||Differential drive with no DC high voltage at output|
|Flexible - complete controls and indicators||Short circuit proof|
When selecting a Pockels cell driver, it is important to know the required switching voltage, as it is typically higher for BBO than KD*P, and half-wave operation requires twice the voltage of quarter-wave. Our compact line of drivers achieve high typical switching voltages by applying opposing voltages to each lead (i.e., a high differential voltage). Switching speed and repetition rate also determine choice of driver.
Q-Drive™ for Q-switched lasers
G&H’s signature Pockels cell driver, the Q-drive™, was developed with a differential output eliminating high DC voltages relative to ground at the Pockels cell. The Q-Drive™ insulation stress and stray capacitance effects are minimized while maximizing safety and reliability.
The Q-Drive™ series offers a fast rise-time for KD*P Pockels cells used in Q-switched lasers with modest repetition rates. It has been designed for high noise immunity and optimum signal integrity. A remote control connector allows convenient single-point access to all driver functions, with remote high voltage (HV) control and signal monitoring.The compact size of the G&H Q-Drive™ allows for placement near the Pockels cell to minimize the output pulse rise time. The OEM model takes up even less volume, with nominal dimensions of only 8 cm square and 2.5 cm high. Moreover, we can customize the board to allow its incorporation in unique system designs. A remote control connector allows convenient single-point access to all driver functions, with remote high voltage (HV) control and signal monitoring.
R-Drive for regenerative amplifiers
The compact, cost-effective R-Drive™ series is designed specifically for use with BBO Pockels cells at quarter wave voltage. Offering both a fast rise and fall time, it allows laser pulses to be injected into or coupled out of an amplifier cavity quickly. Ideal for pulse selection and ultrafast laser regenerative amplifier designs up to 200 kHz, it can be incorporated into new systems or retrofitted as an upgrade to existing designs.
In addition to safety features like a differential voltage design and limited pulsed voltage potential, this driver integrates a short circuit proof design with high quality components to maximize lifetime and reliability.
G&H Pockels cell drivers may be customized for each application, from wiring and signal interfaces to cooling by air, water, or conduction/convection. Options for enhanced reliability include for the Q-Drive™ to avoid crystal degradation, and custom triggering logic with precisely controlled delays for the R-Drive™ to prevent damage in operation. All OEM designs are built to the desired form factor and mounting requirements.
Applications of Pockels Cells Drivers
Q-switching, regenerative amplifiers, laser pulse selection and management.