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Proceedings Paper

All-optical fiber temperature sensor with polarization modulation
Author(s): Yanbiao Liao; Shurong Lai; Huafeng Zhao
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Paper Abstract

An all optical fiber temperature sensor with polarization modulation is described in this paper. The principle of the sensor is based on the thermal effect of the propagation constant of the orthogonal polarization modes in a high birefringence fiber. The construction of the sensor is as follows. A linear polarization light beam is injected into a high birefringence fiber and the output light beam is split into two beams, the two beams pass through the analyzer into detector respectively. In this way not only the magnitude of the temperature but also the variation direction of the temperature can be estimated. This sensor is designed for measuring the average temperature in large area, such as in an oil tank or in reservoir. The construct and measurement results are described.

Paper Details

Date Published: 3 January 1996
PDF: 3 pages
Proc. SPIE 2594, Self-Calibrated Intelligent Optical Sensors and Systems, (3 January 1996); doi: 10.1117/12.229241
Show Author Affiliations
Yanbiao Liao, Tsinghua Univ. (China)
Shurong Lai, Tsinghua Univ. (China)
Huafeng Zhao, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 2594:
Self-Calibrated Intelligent Optical Sensors and Systems
Anbo Wang, Editor(s)

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