Abstract
Mathematical expressions have been derived on fluctuations of optical phase and frequency of a light wave which are thermally caused in a single-mode optical fiber in terms of fiber length, thermal coherence length, and fluctuation frequency. Fluctuations of optical phase and temperature were measured at a wavelength of 0.6328 μm by Mach-Zehnder interferometry, and the results are compared with theoretical predictions. A minimum detectable temperature change through optical phase shift depends on frequency stability of a source laser. It is 10−5 K with a fractional frequency fluctuation of 10−9.
© 1982 Optical Society of America
Full Article | PDF ArticleMore Like This
Pat D. DeSouza and Marc D. Mermelstein
Appl. Opt. 21(23) 4214-4218 (1982)
R. Hughes and R. Priest
Appl. Opt. 19(9) 1477-1483 (1980)
Yoshihiro Ohtsuka
Appl. Opt. 21(23) 4316-4320 (1982)