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Proceedings Paper

Holographic coupler for fiber optic Sagnac interferometer
Author(s): Yunlu Zou; Dahsiung Hsu; Ben Wang; Huiying Tao
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Paper Abstract

The feasibility of using a holographic lens as a coupler in a fiber-optic gyro that is conceived as a ring Sagnac interferometer is experimentally assessed, and the equivalent Bragg condition for holographic gratings is discussed together with the Q factor for slanted gratings. The present holographic couplers yield superior splitting ratio and polarization nonsensitivity; they are also easily constructed and low-cost. The recording medium used is dichromated gelatin, which possesses high diffraction efficiency and low noise.

Paper Details

Date Published: 1 February 1991
PDF: 5 pages
Proc. SPIE 1238, Three-Dimensional Holography: Science, Culture, Education, (1 February 1991); doi: 10.1117/12.19358
Show Author Affiliations
Yunlu Zou, Beijing Institute of Posts and Telecommunications (China)
Dahsiung Hsu, Beijing Institute of Posts and Telecommunications (China)
Ben Wang, Beijing Institute of Posts and Telecommunications (China)
Huiying Tao, Beijing Institute of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 1238:
Three-Dimensional Holography: Science, Culture, Education

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