Composite cavity based fiber optic Fabry-Perot strain sensors demodulated by an unbalanced fiber optic Michelson interferometer with an electrical scanning mirror

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Abstract
A composite cavity based fiber optic Fabry-Perot strain sensor system, interrogated by a white light source and demodulated by an unbalanced fiber optic Michelson interferometer with an electrical scanning mirror, is proposed and demonstrated. Comparing with the traditional extrinsic fiber optic Fabry-Perot strain sensor, the potential multiplexing capability and the dynamic measurement range are improved simultaneously. At the same time, the measurement stability of the electrical scanning mirror system is improved by the self-referenced signal of the sensor structure.
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Author(s)
Zhang, Jianzhong
Yang, Jun
Sun, W
Jin, Wencai
Yuan, Libo
Peng, Gang-Ding
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Publication Year
2008
Resource Type
Journal Article
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UNSW Faculty