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PSP1 Pockels Cell Driver
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This pulse generator is based upon our older Dual Channel Pockels Cell driver which is now discontinued. Although now only a single channel it has an improved pulse shape, ethernet or RS232 control (switchable) and a slightly higher voltage.This unit will be useful for chopping laser pulses down to the 0.3 to 10 ns range. With a fast double crystal pockels cell such as those from Fast Pulse Technology and Leysop it can be used at up to 1064nm. The unit can drive cells sequentially (with some pulse degradation caused by the cell) so that very high extinction ratios can be obtained. |
| Click here for waveforms | and here for manual [right click to download] |
Specification:
- No of channels 1
- Output Amplitude adjustable from 2.5kV to 3.5kV approx.
- Pulse length <300ps to 10ns in approx 25ps steps
- Rise time ≥ 150 ps
- Fall time < 300ps
- Trigger delay approx 31 ns fixed
- Trigger requirement ≥ 4 volts pulse amplitude into 50 Ohms, <2ns risetime
i.e. trigger threshold is a nominal 2V - Maximum repetition rate ≥ 100Hz
- Jitter <20ps peak to peak
- Monitor output Proportional approx x 1000 attenuation
- Trigger synch output
- Local display/control Led indicating power
- Power On/Off by local switch on unit
- Local/remote control switch
- LCD and keyboard allowing local control of
- Trigger enable/disable
- Pulse width setting
- Remote control Trigger enable/disable
- Pulse width setting
- Status monitoring including pulse width readback
- Connectors Power input 110/240V AC
- Pulser output
- Trigger Sync output
- Proportional monitor output
- Trigger Input
- Inhibit Input
- Ethernet
- This unit is normally supplied with suitable cabling and a terminator incorporating a pulse monitor.
Applications:
This unit is intended for use with a pockels cell for laser pulse chopping but may find applications elsewhere.Suitable pockels cells will depend upon the beam aperture and wavelength, some examples are shown below.
These are all 50Ohm through connected cells and require a terminator which we can supply.
These cells use a variety of connectors. Pulsers are generally supplied with relevant cabling.
Up to 2.5 mm aperture
wavelengths <~ 532nm use Fast pulse Technology 1111 cell
wavelengths ~532 to 1064nm use Fast Pulse Technology 1112 cell
Up to 6mm aperture
wavelengths <~ 532nm use Leysop UPC68 single crystal pockels cell
wavelengths ~532 to 1064nm use use Leysop UPC68 double crystal pockels cell
Up to 8mm aperture
wavelengths <~ 532nm use Leysop 8mm special UPC68 single crystal pockels cell
wavelengths ~532 to 1064nm use use Leysop 8mm special UPC68 double crystal pockels cell
Up to 10 mm aperture
wavelengths <~ 532nm use Fast pulse Technology 1071 cell
wavelengths ~532 to 1064nm use Fast Pulse Technology 1072 cell
Up to 16 mm aperture
wavelengths <~ 532nm use Fast pulse Technology 1073 cell
wavelengths ~532 to 1064nm use Fast Pulse Technology 1074 cell