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Proceedings Paper

Linearly chirped and weakly tilted fiber Bragg grating edge filters for in-fiber sensor interrogation
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Paper Abstract

Power-referenced in-fiber edge filters based on a linearly chirped and weakly tilted fiber Bragg gratings (TFBG) are proposed and experimentally demonstrated. A strongly chirped TFBG with a polymer coating provides a smooth transfer function with up to 0.7 dB/nm of discrimination over the C-band. The slope profile of UV-induced chirped TFBG can be easily tailored by adjusting the tilt angle using only one chirped phase mask. Interrogators based on chirped TFBG can provide temperature-self-compensated, broadband, robust and cost-effective in-fiber demodulation for FBG sensing applications.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77537V (18 May 2011); doi: 10.1117/12.884956
Show Author Affiliations
Tuan Guo, Jinan Univ. (China)
The Hong Kong Polytechnic Univ. (Hong Kong, China)
Hwa-Yaw Tam, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Jacques Albert, Carleton Univ. (Canada)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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