Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29246
Title: Fiber laser based wavelength division multiplexed fiber Bragg grating sensor system
Authors: Yu, Y
Tam, H 
Wang, Q
Keywords: Active sensor
F-P filtering
Fiber bragg grating
Interferometric demodulation
Ring-cavity fiber laser
Sensing system
Wavelength division multiplexing
Issue Date: 2002
Publisher: 中国光学学会
Source: 光学学报 (Acta Optica Sinica), 2002, v. 22, no. 5, p. 592-595 How to cite?
Journal: 光学学报 (Acta Optica Sinica) 
Abstract: A fiber laser-based wavelength division multiplexed sensor system with five fiber bragg grating sensor array as reflector of a ring-cavity fiber laser has been demonstrated experimently. A tunable F-P filter inside the cavity was used to interrogate the sensors and establish the laser formation. Wavelength-shift signal induced by the measured strain was demodulated by an unbalanced Michelson scanning interferometer. The sensitivity of the system was demonstrated to be 1.669°/με which was in agreement with the theoretical value of 1.678°/με well. The system was also designed to track one of the channels automatically with a feedback subsystem.
URI: http://hdl.handle.net/10397/29246
ISSN: 0253-2239
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