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Proceedings Paper

Asymmetric Losses in Directional Couplers; Effects on Sagnac and Mach Zehnder Fiber Interferometers
Author(s): R. C. Youngquist; H. J. Shaw
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Paper Abstract

During the last few years the sensitivities of fiber optic Sagnac gyroscopes and Mach Zehnder interferometer sensors have improved significantly. Part of this improvement is due to replacement of bulk devices with integrated optic and fiber optic devices.1 Guided wave devices reduce errors resulting from component motion and surface reflections. They allow compactness and offer a well defined optical path. One of the most commonly utilized guided wave devices is the evanescent wave directional coupler. This device can be used to split or combine guided optical waves and thus rgpl aces the bulk optic beam splitter. Veuions of directional couplers have been fabricated from optical fiber 4,;) and from integrated optical waveguides4.

Paper Details

Date Published: 19 September 1983
PDF: 4 pages
Proc. SPIE 0412, Fiber Optic and Laser Sensors I, (19 September 1983); doi: 10.1117/12.935824
Show Author Affiliations
R. C. Youngquist, Stanford University (United States)
H. J. Shaw, Stanford University (United States)

Published in SPIE Proceedings Vol. 0412:
Fiber Optic and Laser Sensors I
Emery L. Moore; O. Glenn Ramer, Editor(s)

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