• output voltage up to 5KV

• as fast as 10ns risetime

• rugged solid-atet design

• self-contained high voltage power supply

• conpact surface mount design

• TTL/CMOS trigger

■ Adjustable push-pull output to 5.5kV

■ ≤ 20ns rise time and recovery

■ High PRF to 5kHz

■ Rugged solid-state design

■ Self-contained high voltage power supply

■ Compact surface mount construction

■ Opto-isolated or TTL trigger options

■ Pulse width from 5μs TO DC

DESCRIPTION:

The Model QSDEO-8261A Pockels Cell/Shutter Driver is designed for high repetition rate, continuous pulsed applications. Solid-state MOSFET technology is used, giving excellent trigger noise immunity and a smooth output waveform. This technique eliminates common problems associated with krytron, avalanche, and transformer drivers. Amplitude is continuously variable by adjusting the internal high voltage power supply. The Model QSDEO-8261A is capable of operating at high pulse repetition frequencies, fast risetimes and falltimes, and output pulses up to 5.5kV. A low voltage monitor pin is provided to monitor the high voltage prior to the pulse. Internal timing is provided to refresh the output at a 5kHz rate, providing pulsewidth operation from 5μs to DC.

SPECIFICATIONS:

Input

Trigger Input   +4V to +10V into ≥ 500Ω (QSDEO8261A-1); Opto-isolated, 5V at 10mA typical via internal 470Ω (QSDEO8261A-2)

Pulsewidth        5μs to DC

Repetition Rate: Up to 5kHz (20pF load, 2.7kV) or Up to 5kHz (5pF load, 5.5kV)

Power            +24VDC ± 0.5V at 20mA to 350mA depending on PRF and output voltage

Temperature             0° to +50°C

Connections

Power/Trigger      Panduit MFSS100-6 Connector

Control Monitor     0.1" pin spacing

Ext. Pot Control    Panduit MFSS100-3 Connector

Output           18 ± 2" Flying Leads

Output

Voltage          1kV to 5.5kV minimum

Load              Tested with 5pF load or 20pF load

Risetime/ Recovery     ≤ 20ns (20pF load, 2.7kV)

≤ 20ns (5pF load, 5.5kV)

Pulsewidth      Same as trigger pulsewidth

Voltage Control     Internal multi-turn trimpot or external control voltage
                                       When using external mode:     0V control yields 0kV output
                                                                                    5.5V control yields 5.5kV output

Monitor           Pin to monitor HV prior to pulse; Scale same as voltage control

Size             4.20" x 3.20" x 0.71"  (107x81x18mm)

Weight          3.0 oz (85grams)

Caution:

Mounting hardware must be Non-Conductive.

Nylon hardware is provided.

APPLICATIONS:

Driving E-O Q-Switches for Q-Switching Solid-State Lasers, High Voltage Pulser, E-O Shutter

Typical part number: QSDEO8261A-1 = Input Voltage: +24V ± 0.5V

Trigger: +4V to +10V into ≥ 500Ω

Output Voltage: 1kV to 5.5kV

Voltage Control: Internal multi-turn trimpot for external voltage control

Monitor: Panduit MFSS100-6 connector to monitor HV prior to pulsing.

When using external voltage control, R33 must be set fully CCW

■ Adjustable output to -3.5kV

■ ≤10ns rise time, 4ms recovery time

■ Rugged solid-state design

■ Self-contained +15V power supply

■ Compact surface mount construction

■ Opto-isolated or TTL trigger options

DESCRIPTION:

The QSDEO-829 Series Pockels cell drivers are designed for continuous pulsed applications, such as controlled Q-switching of lasers. Solid-state MOSFET technology is used, giving excellent trigger noise immunity and a smooth output waveform. This technique eliminates common problems associated with krytron, avalanche and transformer drivers. Amplitude is continuously variable by adjusting the internal high voltage power supply. Pulse amplitudes to -3.5kV are available. Long recovery time eliminates need for normal mode supply.

SPECIFICATIONS:

Input

Trigger Input    TTL/CMOS compatible, positive logic, >2.5V, high impedance, internally limited to +5V via 1kΩ load (QSDEO829-1); Opto-Isolated, active high current of 10mA (QSDEO829-2)

Pulsewidth        5μs to 1ms

Repetition Rate: Up to 50pps

Power             +15VDC ± 0.5V at 20mA to 100mA depending on PRF and output voltage

Temperature               0° to +70°C

Connections

Input               4 pin connector

Output            12" Flying Leads

Output

Voltage   -500V to -3.5kV

Load              Tested with 47pF

Risetime  ≤ 10ns

Recovery         4+/-1ms (90% to 10%)

Pulsewidth     1us to 300us at 90% (4.7pF, 100MW load)

Voltage Control             Internal multi-turn trimpot
External (add -EXT to part number.)

When using external mode:      4V control yields 0V output
                                                          8.2V control yields -3.5kV output

Monitor    HV monitor lead to monitor HV prior to pulse (add -HV to part number)

Size     3.73" x 1.25" x 0.65" (95 x 32 x 17 mm)

Weight 1.8oz (51grams)

Caution:

Mounting hardware must be Non-Conductive.

Nylon hardware is provided.

APPLICATIONS:

Driving E-O Q-Switches for Q-Switching Solid-State Lasers, High Voltage Pulser, E-O Shutter

Typical part number: QSDEO829-1-HV = Input Voltage: +15V ± 0.5V

Trigger: TTL

Output Voltage: -500V to -3.5kV

Voltage Control: Internal multi-turn trimpot

HV Monitor: HV monitor lead provided to set HV prior to pulsing.

■ Adjustable output to -3.5kV

■ ≤30ns rise time, 150us recovery time

■ Rugged solid-state design

■ Self-contained high voltage power supply

■ Compact surface mount design

■ Opto-isolated or TTL trigger options

DESCRIPTION:

The QSDEO-825 Series Pockels cell drivers are designed for continuous pulsed applications, such as controlled Q-switching of lasers. Solid-state MOSFET technology is used, giving excellent trigger noise immunity and a smooth output waveform. This technique eliminates common problems associated with krytron, avalanche and transformer drivers. Amplitude is continuously variable by adjusting the internal high voltage power supply. Options for triggering include an active high opto-isolator and TTL logic. Pulse amplitudes to -3.5kV are available.

SPECIFICATIONS:

Input

Trigger Input TTL/CMOS compatible, positive logic, >2.5V, high impedance, internally limited to +5V via 1kΩ load QSDEO825-1); Opto-Isolated, active high current of 10mA (QSDEO825-2)

Pulsewidth     >=300ns to 25μs

Repetition Rate: Up to 100pps, burst mode permissible

Power          +15VDC ± 0.5V at 20mA to 100mA depending on PRF and output voltage

Temperature             0° to +70°C

Connections

Input       4 pin connector

Output    12" Flying Leads

Output

Voltage   0 to -3.5kV

Load       Tested with 47pF, 100MW

Risetime  ≤ 30ns

Recovery         <=100us

Pulsewidth     1us to 3us at 97%

Voltage Control         Internal multi-turn trimpot

External (add -EXT to part number.)

When using external mode:      4V control yields 0V output
                                                          8.2V control yields -3.5kV output

Monitor    HV monitor lead to monitor HV prior to pulse (add -HV to part number)

Size      3.73" x 1.25" x 0.48" (95 x 32 x 12 mm)

Weight  1.8oz (51grams)

Caution:

Mounting hardware must be Non-Conductive.

Nylon hardware is provided.

APPLICATIONS:

Driving E-O Q-Switches for Q-Switching Solid-State Lasers, High Voltage Pulser, E-O Shutter

Typical part number: QSDEO825-2-HV = Input Voltage: +15V ± 0.5V

Trigger: Opto-isolated, active high current of 10mA

Output Voltage: 0 to -3.5kV

Voltage Control: Internal multi-turn trimpot

HV Monitor: HV monitor lead provided to set HV prior to pulsing.

■ Output voltage up to -3.1kV

■ ≤10ns rise time, 3ms recovery time

■ Rugged solid-state design

■ Self-contained high voltage power supply

■ Compact surface mount design

■ TTL/CMOS trigger options

DESCRIPTION:

The QSDEO-822 Pockels cell driver is a compact rugged design for single shot or continuous pulsed applications, such as Q-switching LiNbO₃ and RTP crystals. Output voltage is fixed at the factory within the voltage ranges provided. Both commercial (-C) and industrial (-I) temperature versions are available.

SPECIFICATIONS:

Input

Trigger          TTL/CMOS compatible, positive logic, 2.5V to Vin, high impedance

Pulsewidth     >=300ns to 25μs

Repetition Rate: Single shot to 30Hz

Power         +11.5VDC 50 +15.5V at <=20mA

Temperature             0° to +70°C (-C version); -40° to +85°C (-I version)

Connectors

Input           Flying leads (18+/-1”)

Output        Flying Leads (3+/-1”)

Output

Voltage   Up to -3.1kV Factory set

Load       Tested with 20pF

Risetime  ≤ 10ns, 3ns typical

Recovery <=3ms

Pulsewidth   1us to 3us at 97%

Hold time >=20us at 90%, 40us typical

Size             2.0"L x 0.9"W x 0.52"H (51 x 23 x 13 mm)

Weight         0.42 oz (12 grams)

Caution:

Mounting hardware must be Non-Conductive.

Nylon hardware is provided.

APPLICATIONS:

Driving E-O Q-Switches for Q-Switching Solid-State Lasers, High Voltage Pulser, E-O Shutter

*Output voltage fixed at the factory within the range provided.

Typical part number: QSDEO822-3-C = Input Voltage(Vin): +11.5V to + 15.5VDC

Trigger: TTL/CMOS

Output Voltage: -2.5kV +/- 200V

Temperature Range:  0° to +70°C