Optical modulator device

Details Optical modulator device Optical modulator device

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G02B 1/08 (2006.01) G02B 5/30 (2006.01) G02B 6/26 (2006.01) G02B 6/42 (2006.01) G02B 27/28 (2006.01) G02F 1/03 (2006.01) G02F 1/09 (2006.01)

Patent

CA 1169282

ABSTRACT An optical device such as an optical isolator or an optical modulator according to the invention comprises a 45° Faraday rotator or an electrooptic crystal which is interposed between tapered plates of birefringent material for separating and combining polarized light. The optical device is polarization independent, and it can be miniaturized with fewer components than prior art optical devices. The optical isolator also allows one hundred percent of light in the forward direction to pass through it. The optical modulator can be used as a voltage sensor. The tapered plates are made of rutile or calcite.

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