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Proceedings Paper

Fiber Bragg grating sensor based on an erbium-doped fiber ring laser
Author(s): Huawei Pang; Huimin Cui
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Paper Abstract

Fiber grating (FBG) sensor using the wave-length coding has the ability of network handling, Thus arouses people's widespread interest. The address inquiry and the signal demodulation are two key technologies which is to be solved. Not only can the active address inquiry way increase the signal-to-noise ratio, It can have the ability to inquiry more gratings .It is the current research hot spot. In this paper, A fiber laser based wavelength division multiplexed sensor system with three fiber Bragg grating sensor array as reflector of a ring-cavity fiber laser has been used. A tunable F-P filter was used to interrogate the sensors, Wavelength-shift signal induced by the measured temperature was demodulated by an unbalanced Mach-Zehnder interferometer. The sensitivity of the system was demonstrated to be 0.0082nm/oC,which was close to the theoretical value.

Paper Details

Date Published: 11 October 2010
PDF: 6 pages
Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76562P (11 October 2010); doi: 10.1117/12.865351
Show Author Affiliations
Huawei Pang, Hebei Univ. of Science and Technology (China)
Huimin Cui, Hebei Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7656:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Jose M. Sasian; Libin Xiang; Sandy To, Editor(s)

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