Product Detail

QBX-08 - Arbitrary waveform Pockels cell driver

High voltage single channel signal amplifier optimized for capacitive load. Requires waveform generator to set a signal form

QBX-08 - Arbitrary waveform Pockels cell driver 1
QBX-08 - Arbitrary waveform Pockels cell driver 2
QBX-08 - Arbitrary waveform Pockels cell driver 3

Applications: electro-optics (light modulation, beam deflection, beam steering), actuators (piezo, MEMS), ultrasonic devices, single channel signal amplifier

  • Arbitrary waveform - input signal amplifier
  • High voltage - up to 800 V
  • High frequency (bandwidth) - over 50 kHz at full voltage and 60 pF, up to 1 MHz at smaller voltages and loads
  • Fast transitions - < 1 μs (full slope), slew rate ~1 kV/μs

QBX-08 is a dedicated Pockels cell driver designed for continuous pulsed applications, where output voltage value should be constantly adjustable. It is essentially a single channel signal amplifier, which could serve as an electro-optical modulator, being connected to a Pockels cell. But the application field is not limited by this.

The module requires +24 V DC power supply and waveform generator to set an operating voltage and signal form. The driver is based on a voltage amplifier, maximum output voltage is 800 V (QBX-16 driver's output is up to 1600 V). A low-voltage input analog signal (0-8 V) with an arbitrary waveform is amplified with 100:1 factor and delivered to a Pockels cell.

QBX-08 contains a fan for active cooling. Driver can be supplied in built-in and encased versions. Output polarity, gain, load type, maximum output voltage are subject to modifications.

There are several examples of possible output signal form:

arbitrary pulse form Pockels cell driver, MEMS, EO modulatorarbitrary pulse form Pockels cell driver, MEMS, EO modulatorarbitrary pulse form Pockels cell driver, MEMS, EO modulator

Input:

Power input
+24 V DC, 1.5 A
Signal
Analog signal 0-8 V
Input impedance
50 Ohm

Output:

Output type
high voltage signal repeats the shape of low voltage input signal
Output polarity
positive (other on request)
Output voltage
0-800 V (100:1 amplification)
Repetition rate
Up to 1 MHz (at smaller loads and voltages)
Also limited as fMAX * C * U2 = 2W, for example:
~50 kHz @ 800 V and 60 pF
~130 kHz @ 500 V and 60 pF
Rise time (fall time)
< 1 us (full slope)
Delay time
< 1 us

Load requirements and cooling:

Load type
Capacitive (other on request)
Load capacitance
up to 60 pF (other on request)
Cooling
Forced-air with an integrated fan

Environment:

Operation temperature
+10 … +40 °C (wider temperature range is available on request)
Storage temperature
-20 … +60 °C
Humidity
0 ... 90%, non-condensing

Other:

Size (LxWxH)
206x85x45 mm
Weight
0.6 kg

Modifications

Both PCB and enclosed versions are available

arbitrary pulse form Pockels cell driver, MEMS, EO modulatorarbitrary pulse form Pockels cell driver, MEMS, EO modulator

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