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High Voltage Drivers with Fast Amplitude Modulation

High Voltage Drivers with Fast Amplitude Modulation

High Voltage drivers with Fast Amplitude Modulation (FAM) are designed to form laser pulse trains or even single laser pulses with specific user-defined amplitude levels by controlling the operation of a Pockels cell in the laser system.

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Description
Max HV repetition rate
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Code Operating voltage Max HV repetition rate Control Price Delivery Add to cart
DPS-FAM-250-2.5-AI 0.1 - 2.5 kV 250 kHz 1 sync pulse Request Request
DPD-FAM-250-2.5-AI 0.1 - 2.5 kV 250 kHz 2 sync pulses Request Request
DPS-FAM-500-2.5-AI 0.1 - 2.5 kV 500 kHz 1 sync pulse Request Request
DPD-FAM-500-2.5-AI 0.1 - 2.5 kV 500 kHz 2 sync pulses Request Request
Catalogue number DPS-FAM-250-2.5-Al
DPD-FAM-250-2.5-Al
DPS-FAM-500-2.5-Al
DPD-FAM-500-2.5-Al
HV operation voltage range 0.1 - 2.5 kV
HV program input signal range 0.1 - 4.9 V
Maximal HV repetition rate 250 kHz 500 kHz
HV pulse duration 70 - 3000 ns 70 - 1000 ns
HV pulse rise time, typical 1) < 26 ns
HV fall time, typical 1) < 13 ns
Output polarity positive
External trigger pulse requirements:
Amplitude on 50 Ω 3.5 - 5 V
Rise/fall time < 10 ns
HV power consumption 60 W 120 W
24 VDC power consumption < 12 W
Recommended HV power supply model PS-80-2.6 (OEM type)
HVS100-80-2.6 (lab type)
PS-120-2.6 (OEM type)
HVS100-120-2.6 (lab type)
Dimensions 139 x 69 x 57 mm
Cooling 2) conductive or water
Control interface CAN (used mostly for factory calibration)

1) All specifications are given for Pockels cell load of 6 pF.
2) Heat sink temperature must not exceed 35°C (95°F) in all regimes of operation.

Operation timing charts

SYNC1 and SYNC2 are used for 2-pulses control operation mode. HV program input amplitude is readout at SYNC2 rising edge and is used to set HV output amplitude for next HV output pulse which is started with SYNC1 rising edge. SYNC is used for single pulse control mode. HV program input amplitude is readout at SYNC falling edge and is used to set HV output amplitude for next HV output pulse which is started with SYNC rising edge.

FAM operation timing charts

Example of driver operation

Green trace – modulated analog input signal, purple trace - trigger signal SYNC (single pulse control mode), yellow trace - HV pulse.

Fast Amplitude Modulator Operation Example

EKSMA Optics HV Drivers with Fast Amplitude Modulation
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 Features:

  • Fast amplitude modulation of HV pulses
  • Output HV pulses amplitude range from 0.1 to 2.5 kV
  • HV pulses repetition rate up to 500 kHz

High Voltage drivers with Fast Amplitude Modulation (FAM) are designed to form laser pulse trains or even single laser pulses with specific user-defined amplitude levels while this driver controls operation of Pockels cell in the pulse picker system.

DPS/DPD-FAM series drivers allow to control the amplitude of each HV output pulse. The control is realized by one (DPS model) or two (DPD model) trigger-sync pulses and analog input amplitude control or modulation.

DPS/DPD-FAM drivers capability to modulate the amplitude of ultrafast laser pulses can be successfully employed in some materials processing applications.