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Proceedings Paper

Distributed optical fiber sensor based on modulated dual-pulse probe signal
Author(s): Wenhui Sun; Gaosheng Fang; Xinwei Chen; Pengsheng Wu; Kai Wang
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Paper Abstract

A distributed fiber sensor based on Rayleigh scattering is described which converts vibration-induced optical phase changes into optical intensity variations by using modulated dual-pulses injected into sensing fiber. Phase generated carrier algorithm is used to permit arctangent operation to demodulate the phase information along the sensing fiber. The demonstrated sensor is capable of probing dynamic acoustic or vibration disturbances over 10km of sensing length with spatial resolution of 6m and large signal to noise ratio. The background noise of our system is estimated about 1×10-3 rad/√Hz.

Paper Details

Date Published: 5 January 2017
PDF: 4 pages
Proc. SPIE 10244, International Conference on Optoelectronics and Microelectronics Technology and Application, 102440R (5 January 2017); doi: 10.1117/12.2263934
Show Author Affiliations
Wenhui Sun, 38th Research Institute of Chinese Electronics Technology Group Corp. (China)
Gaosheng Fang, 38th Research Institute of Chinese Electronics Technology Group Corp. (China)
Xinwei Chen, 38th Research Institute of Chinese Electronics Technology Group Corp. (China)
Pengsheng Wu, 38th Research Institute of Chinese Electronics Technology Group Corp. (China)
Kai Wang, 38th Research Institute of Chinese Electronics Technology Group Corp. (China)


Published in SPIE Proceedings Vol. 10244:
International Conference on Optoelectronics and Microelectronics Technology and Application
Shaohua Yu; Jose Capmany; Yi Luo; Yikai Su; Songlin Zhuang; Yue Hao; Akihiko Yoshikawa; Chongjin Xie; Yoshiaki Nakano, Editor(s)

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