TX SERIESKD*P Pockels cell
TX2042 / 2650 / 3460 / 5065 / 7595 / 100DTX series KD*P Pockels cells are themost advanced large aperture opticalisolators commercially available and areproven performers in high power
applications.
Gooch & Housego 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 thetotal from all other manufacturers combined.
We have incorporated state-of-the-art features, suchas specially modified cylindrical-ring electrodegeometries for optimum aperture extinction andtransmission uniformity and minimum optical path
length. Series TX cells also feature axially adjustablewindows for sub-millimeter control of window/
crystal spacing and 224 TPI differential screws forarc-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 thecost of a new unit. Each unit comes with detailed
2-page/4-photo test documentation for quality
assurance.
We install premium 50 ohm GHV series electricalreceptacles on series TX cells because of their
20 kVDC and 1 GHz mil-spec ratings (used with RG-8
A/U or RG-213/U coaxial cable). We stock GHV
bulkhead receptacles as well as cable-end plugs.

Features• Axially adjustable windows for sub-millimeter
control of window/crystal spacing• 224 TPI differential screws for arc-second
adjustment of input/output windows parallelism• Double fill/drain ports• Individually accessible crystal faces forconvenient inspection or cleaning• 50 Ω transmission line drive configuration isstandard.
• Precision milled and epoxy-free• A range of apertures available
Benefits• Expanded beam allows for reduced intensity
Applications• Q-switching and optical isolators in pettawatt/terawatt lasers• Optical isolation and low frequency modulationof high power visible to NIR laser beams

TX SERIES KD*P POCKELS CELL................................................................................................................................................................................
Datasheet Revision No. 1.1
As part of our policy of continuous product improvement, we reserve the right to change specifications at any time.

July 2017
Page 1

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Typical Specifications

TX2042

TX2650

TX3460

TX5065

TX7595

TX100D

L x H x W (mm)185x80x85

97x87x92

102x95x103

115x111x119

151x136x144

157x 161x169

Hard aperture

19.5 mm25.5 mm33.5 mm49.5 mm73.5 mm99.0 mm

1.1 kg

1.4 kg

1.9 kg

2.7 kg

5.4 kg

7.5 kg

95%

95%

95%

95%

95%

95%

Single pass insertion loss

3.5%

4%

5%

5%

6.5%

7%

Voltage contrast ratio
Crossed polarizers
Parallel 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

Maximum residual
birefringence (typically< 1% of aperture)< 10 nm< 12 nm< 18 nm< 20 nm< 40 nm< 80 nm

DC halfway voltage

6.4 kV

6.4 kV

6.7 kV

6.9 kV

7.3 kV

7.7 kV

Single pass distortion

λ/20

λ/20

λ/20

λ/20

λ/20

λ/20

PHYSICAL

Weight2Crystal deuteration

OPTICAL (1064 nm)

ELECTRICAL
Capacitance @ 1 kHz

23 pF

27 pF

32 pF

56 pF

86 pF

115 pF

10-90% risetime(50 Ω line)

1 nsec<2 nsec

2 nsec3 nsec5 nsec7 nsec50 Ω source and termination
1 L=housing length along optic axis direction; W=width between electrical terminals; H=height
2 99% deuterated KD*P and UV-grade KDP also available in certain sizes. Please inquire.
TX cell 50 Ω transmission
mode wiring information:

GHV connector
Electrodes(Crystal)

GHV connector

For further information
E: sales@goochandhousego.com

goochandhousego.com

TX SERIES................................................................................................................................................................................
Datasheet Revision No. 1.1
As part of our policy of continuous product improvement, we reserve the right to change specifications at any time.

July 2017Page 2