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Proceedings Paper

A weak feedback effect based fiber laser sensor demodulated by a phase generated carrier scheme
Author(s): Jianzhong Zhang; Zhenxing Yu; QianQian Hao; Quan Chai; Qi Li; Weimin Sun; Libo Yuan; G. D. Peng
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Paper Abstract

We propose a weak feedback effect based fiber laser sensor demodulated by a phase generated carrier (PGC) scheme. The weak feedback, realized by an optical fiber pigtail with a fiber end-face, couples a small part of light back to the fiber laser cavity to realize the light intensity modulation of the fiber laser. The sensor system based on the PGC demodulation scheme avoided the signal fading, caused by out of quadrature, and realizes the reliable vibration measurement.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842139 (17 October 2012); doi: 10.1117/12.975107
Show Author Affiliations
Jianzhong Zhang, Harbin Engineering Univ. (China)
Univ. of New South Wales (Australia)
Zhenxing Yu, Harbin Engineering Univ. (China)
QianQian Hao, Harbin Engineering Univ. (China)
Quan Chai, Harbin Engineering Univ. (China)
Qi Li, Harbin Engineering Univ. (China)
Weimin Sun, Harbin Engineering Univ. (China)
Libo Yuan, Harbin Engineering Univ. (China)
G. D. Peng, Univ. of New South Wales (Australia)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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