QBY-4050 energy-effective Pockels cell driver

QBY-4050 is a high-effective Pockels cell driver a compact model with an extremely low power consumption, which was a requirement for a battery-powered system. By this model we demonstrate the technology. Other our driver series (QBU, QBD) could be also redesigned to reduce power consumption

Energy-effective driver, suitable for battery powered equipment, some LIDAR systems. Can be used for Q-switching, pulse slicing.

Output voltage up to 5 kV
Power consumption < 10 W for 5 pF load in 50 kHz and 4 kV regime
50 kHz @ 4 kV repetition rate
< 40 ns both rise/fall time (< 20 ns on request)
40 - 1000 ns long pulses

Maximum power does not exceed 10 W (for 5 pF load in 50 kHz and 4 kV regime). The output voltage is up to 5 kV, max. rep. rate is up to 50 kHz and depends strongly on the load capacitance (it is therefore recommended to use the shortest possible cables and to select a Pockels cell with a lower capacitance). The driver provides rise and fall times of about 30-40 ns. It is possible to control the pulse amplitude by an analog input signal and the pulse width by an external LVDS signal.

The module requires +24 V DC power supply and pulse generator to set an operating frequency and pulse width.

The module was designed to work in push-up (= normally off) scheme, when a base voltage level equals to zero. Non-periodic pulses are also possible, set by ajusting a pulse generatol correspondingly.

The module is very sensitive to load capacitance. In order to keep its perfomance close to datasheet values, one needs to minimize the load capacitance, numbers less than 20 pF are appreciated.

Input:

Voltage

+24 V DC

Current

4 A max

Output:

Working mode

output is triggered by an arbitrary external LVDS signal

Pulse amplitude

V_MAX = 6 kV

Pulse-to-pulse stability

< 1%

Pulse width

40-1000 ns (other on request)

Pulse rise / fall time¹

< 40 ns (< 20 ns on request)

Maximum repetition rate ¹

up to 50 kHz max at 4 kV

Jitter

< 0.2 ns

Delay time

< 20 ns

Load capacitance

5 pF recommended, 20 pF maximum

Environment:

Operation temperature

-40… +60 °C (wider temperature range is available on request)

Cooling

driver should be cooled through the bottom side

Other:

Size (LxWxH)

112x108x25 mm

Weight

0.2 kg

¹⁾ depends on output voltage and setup (i.e., on load capacitance).

Feel free to contact us if your needs are different from the specifications above.

Modifications

Model *

Description

QBY-4050

0.0-5.0 kV high voltage adjustment range
40-1000 ns pulse width

(*) Other parameters are disussable

Product Detail

QBY-4050 energy-effective Pockels cell driver

Input:

Output:

Environment:

Other:

Modifications

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