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Proceedings Paper

Analysis of a low-finesse extrinsic Fabry-Perot interferometric optical fiber sensor
Author(s): Zhen Yang; Min Zhang; Yanbiao Liao; Qian Tian; Qisheng Li; Yi Zhang; Zhi Zhuang
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Paper Abstract

Theoretical and experimental aspects of the extrinsic Fabry-Perot(FP) interferometric(EFPI) optical fiber sensor are studied. For a low-finesse EFPI sensor, the change of cavity length will influence the visibility of the interference fringes reflected back into the fiber. In this paper, an analysis on the fringe visibility of EFPI sensors based on the power distribution is presented. The effect that the cavity length and the source bandwidth play in the fringe visibility of EFPI sensors interrogated with a broadband light source which makes the sensor immune to source fluctuations is explored. The analysis may provide useful guidance for sensor design.

Paper Details

Date Published: 9 November 2010
PDF: 6 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78533C (9 November 2010); doi: 10.1117/12.870589
Show Author Affiliations
Zhen Yang, Tsinghua Univ. (China)
Min Zhang, Tsinghua Univ. (China)
Yanbiao Liao, Tsinghua Univ. (China)
Qian Tian, Tsinghua Univ. (China)
Qisheng Li, Chinese Academy of Engineering Physics (China)
Yi Zhang, Chinese Academy of Engineering Physics (China)
Zhi Zhuang, Chinese Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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