10 kHz, 20 kHz, 50 kHz, 100 kHz
LASER PULSE GATING SYSTEMS
- Repetition Rates up to 100 kHz
- ≤ 4 nanosecond Rise & Fall Times
- Adjustable Output Voltage
- Pulse Width Range 6 ns to >1 :s
- EMI/RFI Suppressed
- Wavelength Range: 200 nm to 1650 nm
Designed for regenerative laser amplifier seeding and pulse extraction, 5100ERW Systems are valuable for
laser pulse picking/chopping, mode locked pulse gating, Q-switching and cavity dumping. The systems
are effective in both intracavity and extracavity applications and exhibit rise and fall times as fast as
3 ns. They offer the latest technology in reliable, solid state, high voltage switching design and superior
electro-optic Pockels cells.
Series 5100ERW Systems, available in 4 repetition rate/voltage ranges, utilize high speed, HV MOSFET
switching circuits and Pockels cell technology developed and refined at FastPulse Technology
through decades of manufacturing and improving its Laser Pulse Gating Systems. These systems are
noted for convenience, longevity, reliability, and noisefree operation.
5100ERW System High Voltage MOSFET Switching Modules are configured for operation at voltages
suitable for half wave operation of RTP (Rubidium Titanyl Phosphate) E-O modulators over their useful
spectral range of about 550 nm to 2000 nm. The systems will also accommodate BBO (β Barium Borate)
modulators operating in the range of 200 nm to approximately 532 nm. By simply adjusting the front
panel HV control, the user can operate the system over the full range of voltages – from less than the
quarter wave voltage to more than the half wave voltage – without loss of efficiency or increased rise or
fall times. Half wave retardation corresponds to 900 rotation of the incoming polarization plane. Operation
in the half wave mode may obviate the usual requirement for a quarter or half wave plate in the
optical train in many regenerative amplifier configurations.
Series 1147 Pockels cells utilize RTP (Rubidium Titanyl Phosphate), noted for its ability to produce optical
switching without superimposing photoelastic ringing on the transmitted beam. RTP modulators use two
crystals, a configuration that provides excellent thermal compensation and stability with low operating
voltages.
Series 1150 BBO Pockels cells utilizing Beta Barium Borate crystals are currently available in aperture sizes of 3 and 4 mm diameters. BBO is noted for its very low piezoelectric response, ability to tolerate high average power and operate in the UV spectrum.
Since BBO requires significantly higher voltages than RTP, aperture sizes are limited to about 4 mm.
The Model 5100ER Power Supply/Timing Generator provides all of the voltages and timing functions
necessary for controlling time delay, pulse width and operating voltage. It accepts trigger signals for a
variety of sources including PIN photodiodes. All controls are located in the PS/TG cabinet which can
be mounted in a rack or used on a bench top.
The 5100EMW Optical Head Assembly contains the Pockels cell mounted on a gimbal for precision pitch
and azimuth positioning and the HV MOSFET Switch Modules. The OHA is virtually noise-free which
makes it very desirable in applications that cannot tolerate radiated or conducted EMI/RFI. The OHA is
provided with two water connections which can be used in conjunction with the laser cooling system.
5100ERW Systems are shipped with a Users Manual and a set of interconnecting cables.
SERIES 5100ERW High Repetition Rate Laser Pulse Gating Systems DATA SHEET (PDF)
