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Applied Optics

Applied Optics


  • Vol. 27, Iss. 15 — Aug. 1, 1988
  • pp: 3085–3087

Multimode fiber-optic Mach-Zehnder interferometer and its use in temperature measurement

Takayuki Okamoto and Ichirou Yamaguchi  »View Author Affiliations

Applied Optics, Vol. 27, Issue 15, pp. 3085-3087 (1988)

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A fiber-optic Mach-Zehnder interferometer with multimode fibers has been constructed, in which the fringe shift is detected by a spatial filtering detector. In this interferometer, throughput is much greater than in interferometers using single-mode fibers, but speckles disturb detection of the fringe shift. We have overcome this disadvantage by computer software; the interferometer measured temperature and a sensitivity of 72.3 ± 1.2 fringes/°C · m was obtained.

© 1988 Optical Society of America

Original Manuscript: November 2, 1987
Published: August 1, 1988

Takayuki Okamoto and Ichirou Yamaguchi, "Multimode fiber-optic Mach-Zehnder interferometer and its use in temperature measurement," Appl. Opt. 27, 3085-3087 (1988)

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