Interferometry through single-mode optical fibers

Details Interferometry through single-mode optical fibers Interferometry through single-mode optical fibers

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979spie..192..196c&link_type=abstract

In: Interferometry; Proceedings of the Seminar, San Diego, Calif., August 29, 30, 1979. (A80-44308 19-35) Bellingham, Wash., Soc

Physics

Optics

1

Fabry-Perot Interferometers, Fiber Optics, Interferometry, Mach-Zehnder Interferometers, Optical Fibers, Propagation Modes, Signal Transmission, Bessel Functions, Fresnel Reflectors, Optical Coupling, Spatial Filtering, Temperature Effects

Scientific paper

The problem of coupling from a laser into a single-mode fiber is discussed, including optimal matching of a gaussian beam to the Bessel function field distribution of the He(11) mode. Theoretical coupling efficiency can be as high as 99.7 percent, and experimental efficiency is 70 percent, not corrected for Fresnel reflections. Experimental results are presented showing the change in the optical length of a fiber with temperature and the use of single-mode fibers in two types of interferometer, a Fabry-Perot etalon and an unequal-path Mach-Zehnder interferometer with 128 meters of optical fiber in one of the paths.

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