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Home Electro-optics MOSFET-based Pockels Cell Drivers Pockels Cell Driver Boards QBU-series Pockels Cell Drivers QBU-10kV Pockels Cell Drivers

QBU-10kV Pockels Cell Drivers

QBU-10kV is an extension of QBU-series with up to 10kV operating voltage range. Its parameters and distinctive features are:

  • Duplicates at its HV output the external driving TTL signal;
  • Up to 10kV output voltage;
  • Up to 5 kHz @10 kV pulse repetition rate, much higher performance at lower voltages.
  • <20 nsec rise- and <25 nsec fall-time

Applications

  • Q-switching, Pulse picking, Pulse Slicing

Description

QBU-10kV is an extension of QBU-series with up to 10kV operating voltage range. Due to high output voltage it may be used with Pockels Cells working in λ/2 schemes, as well as those operating at longer wavelengths.

Module has fast transition times in both directions, and repeats at its HV output the external driving TTL signal. As a result, they may be used for Q-switched lasers of push-up scheme, pull-down scheme as well for mixed-type or another user-defined configuration.

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Under conditions of appropriate forced air-cooling multi-kilohertz operations are possible even at maximal output voltage.

Performance

Output voltage, kV Repetition rate, kHz (*)
4.0 40-60
5.0 30-40
6.0 20-30
7.0 15-25
8.0 12-18
9.0 10-14
10.0 7-11

With proper load (Pockels cell with 5-7 pF capacitance plus 30-50 cm cable) and under condition of appropriate cooling QBU-10kV’s typical performance is presented below:
(*) Values are approximate, exact performance depends on the actual load’s capacitance and cooling conditions.

Technical Specifications

INPUT
Voltage +24 VDC
OUTPUT
Operational modes Repetition of the input TTL signal
Voltage, high level Adjustable within 4 – 10kV range
Voltage, low level fixed, 0 V
Pulse Duration 200 nsec – DC
Pulse Repetition Rate >5 kHz at the full load (10.0 kV/11 pF)
Rise time (fall time) <20 nsec (<25 nsec)1
Timing Jitter ~1.5 nsec
Delay Time ~150 nsec
ENVIRONMENT
Operational Temperature +10°C to +40°C (wider range on request)
Storage Temperature ‐20 °C to +60 °C
Humidity 90%, non-condensing
PHYSICAL
Exterior Dimensions (LxWxH) 132 x 105 x 50 mm
Weight <0.2 kG
1)10-90% level, warranted at load capacitance 11 pF and below.

How to Order

Modifications

Model* Description*
QBU-10 kV 4.0-10.0 kV high voltage adjustment range
(*) Other output voltages are available on request
Example:
QBU-10 kV 4.0-10.0 kV high voltage adjustment range

Downloads

QBD series Pockels cell driver - User manual
qbd-manual-en.pdf (530 KB)