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1 September 1996 Optical fiber sensor based on optical feedback effect of a laser diode
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Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 2778FN (1996) https://doi.org/10.1117/12.2316252
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of
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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Seiichi Kakuma "Optical fiber sensor based on optical feedback effect of a laser diode", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778FN (1 September 1996); https://doi.org/10.1117/12.2316252
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