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Proceedings Paper

A novel method of edge filter demodulation by using temperature-independence HBF Sagnac LM
Author(s): Yonglin Huang; Heming Chen
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Paper Abstract

A novel method of demodulation for fiber Bragg sensor is presented. An experimental system is built up in which HBF Sagnac LM is used as the edge filter. We achieve linear demodulation whith a bandwith of 3.6nm. We have also experimentally demonstrated that packaged HBF can compensate the temperature shift of the HBF Sagnac LM filter. The shift of wavelength for an uncompensated HBF Sagnac LM is approximately 2.3nm/°C,and that of the compensated HBF Sagnac LM is 0.005nm/°C,which is much less than that of the uncompensated HBF Sagnac LM filter.

Paper Details

Date Published: 21 November 2007
PDF: 5 pages
Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 67813M (21 November 2007); doi: 10.1117/12.741786
Show Author Affiliations
Yonglin Huang, Nanjing Univ. of Posts and Telecommunications (China)
Heming Chen, Nanjing Univ. of Posts and Telecommunications (China)

Published in SPIE Proceedings Vol. 6781:
Passive Components and Fiber-based Devices IV
Ming-Jun Li; Jianping Chen; Satoki Kawanishi; Ian H. White, Editor(s)

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