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Large Aperture
Pockels
Cells
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Series TX Pockels cells are the most advanced large aperture
optical
isolators commercially available and are proven performers in
high power
applications. Cleveland Crystals is the leading producer of
Pockels cells
for the development of laser induced nuclear fusion and
sub-micron microlithography.
Nearly 300 units are in use worldwide...more than twice the total
from
all other manufacturers combined.
We have incorporated state-of-the-art features, such as
specially modified
cylindrical-ring electrode geometries for optimum aperture
extinction and
transmission uniformity and minimum optical path length. Series
TX cells
also feature axially adjustable windows for sub-millimeter
control of window/crystal
spacing and 224 TPI differential screws for arc-second adjustment
of windows
parallelism or net wedge. These units typically have a lifetime
of many
years and can often be rebuilt for a fraction of the cost of a
new unit.
Each unit comes with detailed 2-page/4-photo test documentation
for quality
assurance.
We recommend premium 50-ohm electrical receptacles on series
TX cells
because of their 20kVdc and 1GHz mil-spec ratings (used with RG-8
A/U or
RG-213/U coaxial cable), but we can also install the more common
HN receptacles.
For customer convenience, we stock GHV bulkhead receptacles as
well as
cable-end plugs.
Call us today and ask for information on all of our
polarization control
products, including series TX large aperture optical isolators
and series
LX miniature Pockels cells. We also offer standard waveplates,
achromatic
waveplates, tunable waveplates, custom prism components and a
visible-to-25
micrometer wideband polarizer.
General Features:
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Axially adjustable windows for sub-millimeter control of
window/crystal
spacing, especially important in fluid-filled units.
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Differential screws for arc-minute adjustment of
input/output window
parallelism or net wedge (equivalent to 224 threads per
inch)
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Double fill/drain ports for easy fluid draining, purging
or refilling.
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Individually accessible crystal faces for convenient
inspection
or cleaning of either end of the crystal without disturbing the
opposite
end, even if the cell is fluid-filled.
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Precision housing using our in-house BOSTOMATIC 3000 CNC
vertical
milling machine, which facilitates clean assembly (no need for
potting
compounds, cements, epoxies or adhesives) and helps assure years
of trouble-free
service.
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Quality assurance from the standard 2-page, 4-photo
documentation
that accompanies each TX Pockels Cell we build. And our customers
know
that CCI's service continues long after the initial sale.
| Typical Specs |
TX2042 |
TX2650 |
TX3460 |
TX5065 |
TX7595 |
TX100D
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Physical (see figure
below)
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| L/H/W (mm)* |
85/80/85 |
97/87/92 |
102/95/103 |
115/111/119 |
151/136/144 |
157/161/169 |
| Crystal Deuteration** |
95% |
95% |
95% |
95% |
95% |
95% |
| Hard Aperture |
19.5 mm |
25 mm |
33.3 mm |
49.5 mm |
73.5 mm |
99.0 mm |
| Weight |
1.1 kg |
1.4 kg |
1.9 kg |
2.7 kg |
5.4 kg |
7.5 kg |
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Optical
(1064nm)
|
| Single Pass Insertion Loss |
3.5% |
4.0% |
5% |
5% |
6.5% |
7% |
Voltage Contrast
X polarizers
|| polarizers |
8000:1
3000:1 |
8000:1
2500:1 |
6000:1
1500:1 |
3000:1
500:1 |
800:1
300:1 |
200:1
100:1 |
Max Residual Birefringence
(typically<1% of aperture) |
<10 nm |
<12 nm |
<18 nm |
<20 nm |
<40 nm |
<80 nm |
| DC 1/2 Wave Voltage |
6.4 kV |
6.4 kV |
6.7 kV |
6.9 kV |
7.3 kV |
7.7 kV |
| Single Pass Distortion |
1/20 wave |
1/20 wave |
1/15 wave |
1/12 wave |
1/8 wave |
1/4 wave |
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Electrical (50 Ohm
source
and termination)
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| Capacitance @ 1kHz |
23 pF |
27 pF |
32 pF |
56 pF |
86 pF |
115 pF |
| 10-90% Risetime (50 Ohm line) |
1 ns |
<2 ns |
2 ns |
3 ns |
5 ns |
7 ns |
* L=housing length along optic axis direction;
W=width
between electrical terminals; H=height
** 99% deuterated and UV-grade KDP also
available in
certain sizes. Please inquire.
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