Asymmetric Losses in Directional Couplers; Effects on Sagnac and Mach Zehnder Fiber Interferometers

R. C. Youngquist; H. J. Shaw

doi:10.1117/12.935824

19 September 1983 Asymmetric Losses in Directional Couplers; Effects on Sagnac and Mach Zehnder Fiber Interferometers

R. C. Youngquist, H. J. Shaw

Proceedings Volume 0412, Fiber Optic and Laser Sensors I; (1983) https://doi.org/10.1117/12.935824
Event: 1983 Technical Symposium East, 1983, Arlington, United States

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.

Citation Download Citation

R. C. Youngquist and H. J. Shaw "Asymmetric Losses in Directional Couplers; Effects on Sagnac and Mach Zehnder Fiber Interferometers", Proc. SPIE 0412, Fiber Optic and Laser Sensors I, (19 September 1983); https://doi.org/10.1117/12.935824

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