All-optical fiber temperature sensor with polarization modulation

Yanbiao Liao; Shurong Lai; Huafeng Zhao

doi:10.1117/12.229241

3 January 1996 All-optical fiber temperature sensor with polarization modulation

Yanbiao Liao, Shurong Lai, Huafeng Zhao

Proceedings Volume 2594, Self-Calibrated Intelligent Optical Sensors and Systems; (1996) https://doi.org/10.1117/12.229241
Event: Photonics East '95, 1995, Philadelphia, PA, United States

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.

Citation Download Citation

Yanbiao Liao, Shurong Lai, and Huafeng Zhao "All-optical fiber temperature sensor with polarization modulation", Proc. SPIE 2594, Self-Calibrated Intelligent Optical Sensors and Systems, (3 January 1996); https://doi.org/10.1117/12.229241

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