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Proceedings Paper

Optical fiber sensor based on optical feedback effect of a laser diode
Author(s): Seiichi Kakuma
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Paper Abstract

In this work we report the results of the experimental investigation on the optical fiber sensor (OFS) applying the optical feedback effect of laser diode. An optical path length change of a sensing fiber is precisely determined via the light frequency shift of a LD whose frequency is locked to the path length of the fiber. Another LD is used as a local oscillator to determine the frequency shift. The light frequency is accurately determined from a beat signal observed in the mixture of lights from. both LDs.

Paper Details

Date Published: 1 September 1996
PDF: 2 pages
Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778FN (1 September 1996); doi: 10.1117/12.2316252
Show Author Affiliations
Seiichi Kakuma, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 2778:
17th Congress of the International Commission for Optics: Optics for Science and New Technology
Joon-Sung Chang; Jai-Hyung Lee; ChangHee Nam, Editor(s)

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