LASERMETRICS ® 5055SC Systems incorporate the latest HV MOSFET technology with the company’s
well known high speed Pockels cell Q-switches. The combination is intended primarily for laser Q-switching
and cavity dumping and can also be utilized for pulse selection, extraction, seeding and chopping. With
appropriate Pockels cells, a system can operate over a wavelength range of 250 nm to 1300 nm.
FEATURES
- Self-contained HV Power Supply
- Gimbal Mounted Pockels Cell
- Accepts most 1 3/8″D Pockels Cells
- High Reliability & Small Footprint
- ≤ 3 Nanosecond Optical Rise Time
- Optical or Electrical Triggering
- Repetition Rates up to 1000 pps
- EMI/RFI shielded enclosure
5055SC Systems feature a High Voltage Pulse Module with a self-contained high voltage supply
which requires only +24 volts DC input. An AC to +24VDC miniature converter is available for
supplying the required DC voltage. High voltage is adjusted to the required level by an integral
miniature potentiometer. The HV Pulse Module can be triggered from conventional TTL pulse sources.
Repetition rates of 1000 pulses per second are attained with the standard HV Pulse Module.
Higher repetition rates, up to 5,000 pps, are available at lower voltages and with a larger
module. 5055SC Systems incorporate an EMI/RFI shielded enclosure with no exposed HV terminals
as shown on the outline drawing.
The Pockels cell operates with no static DC high voltage applied – the driving pulse switches from
zero to the preset operating HV level. This feature prevents cumulative ion migration damage which
occurs in KD*P crystals with application of continuous DC voltage. Since both Pockels cell
and HV Pulse Module are rigidly fixed to the gimbal mounting surface and no stiff HV cables are
required, there is no tendency for the alignment to change because of pressure from cables.
KD*P Pockels cells (Series 1059) are useful with large beam diameters and where peak power
densities exceed 750 MW/cm2, 20 ns pulse width.
RTP Pockels cells (Series 1147) are recommended for operation where high average power, freedom
from piezoelectric ringing or wavelengths longer than 1100 nm are needed. Both types of Pockels
cells offer highest transmittance, nominally 98.5%, in the range of 800 nm to 1100 nm.
5055SC with Pockels Cell Cover Shield Removed.
Sol Gel antireflection coatings for the KD*P crystal surfaces can reduce reflectance to 0.05% per
surface. These coatings are valuable in high fluence lasers – they do not cause non-linear absorption
effects or contribute to thermally induced beam distortions.
NOTE: The 5055SC is available without a Pockels cell to accommodate customers who have a suitable
device. It can be supplied with an adaptor to hold an industry standard, 1.375″ diameter cell or with
an aluminum plate adaptor which mates with the system mounting gimbal. The plate can be modified
to hold a variety of Pockels cell shapes.
MODEL 5055SC INTEGRATED DRIVER/POCKELS CELL Q-SWITCHING SYSTEMS DATA SHEET (PDF)
