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Proceedings Paper

Fine-tuning filter for distributed optical fiber temperature measuring system
Author(s): Weimin Chen; Lingchuan Wu; Jian Zou; Shengjun Zhou; Shanglian Huang
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Paper Abstract

In distributed optical fiber temperature measuring system, temperature information is involved in Raman scattering light. In order to separate weak Raman scattering light from other stronger, adjacent scattering light, interference filter is commonly used and must be specially designed and fabricated. A group of fine tunable optical interference filters is presented to avoid the special procedure of filter. The principle of the filter group is discussed. The experimental results is presented. Results show that the accuracy of central wavelength is upgraded from +/- 0.8nm to +/- 0.2nm and the bandwidth is narrowed to the half of original filter's.

Paper Details

Date Published: 13 August 1998
PDF: 9 pages
Proc. SPIE 3555, Optical and Fiber Optic Sensor Systems, (13 August 1998); doi: 10.1117/12.318204
Show Author Affiliations
Weimin Chen, Chongqing Univ. (China)
Lingchuan Wu, Chongqing Univ. (China)
Jian Zou, Chongqing Univ. (China)
Shengjun Zhou, Chongqing Univ. (China)
Shanglian Huang, Chongqing Univ. (China)


Published in SPIE Proceedings Vol. 3555:
Optical and Fiber Optic Sensor Systems
Shanglian Huang; Kim D. Bennett; David A. Jackson, Editor(s)

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