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Longitudinal Electro Optic Crystals

IP.com Disclosure Number: IPCOM000094666D
Original Publication Date: 1965-Apr-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Hoffman, HS: AUTHOR [+2]

Abstract

Absorption and distortion of light passing along the optical path through a longitudinal electro-optic crystal is prevented by electrodes in axial alignment with the path.

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Longitudinal Electro Optic Crystals

Absorption and distortion of light passing along the optical path through a longitudinal electro-optic crystal is prevented by electrodes in axial alignment with the path.

The crystal is fabricated by laminating two blocks of transparent isotropic material 10 and 11 onto the end faces of electro-optic crystal 12. Grooves 14 and 15 are cut into the end faces of 10 and 11, completely through the bodies of 10 and 11 and thence into 12. These grooves end in 12 with sufficient separation to withstand operating voltages. The grooves are completely filled with a conductive material to form the electrodes. Groove 14 is shown in the section view as cut. The tip of groove 15 exposed by the section is shown as filled with conductive material 16. The manner of applying operating voltage to the electrodes within 14 and 15 is not shown.

Thus, light passing along the optical axis 18 is not distorted by the electrodes. The device can be utilized as an electro-optic rotator of polarized light.

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