Analysis of a low-finesse extrinsic Fabry-Perot interferometric optical fiber sensor

Zhen Yang; Min Zhang; Yanbiao Liao; Qian Tian; Qisheng Li; Yi Zhang; Zhi Zhuang

doi:10.1117/12.870589

9 November 2010 Analysis of a low-finesse extrinsic Fabry-Perot interferometric optical fiber sensor

Zhen Yang, Min Zhang, Yanbiao Liao, Qian Tian, Qisheng Li, Yi Zhang, Zhi Zhuang

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 78533C (2010) https://doi.org/10.1117/12.870589
Event: Photonics Asia 2010, 2010, Beijing, China

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.

Citation Download Citation

Zhen Yang, Min Zhang, Yanbiao Liao, Qian Tian, Qisheng Li, Yi Zhang, and Zhi Zhuang "Analysis of a low-finesse extrinsic Fabry-Perot interferometric optical fiber sensor", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78533C (9 November 2010); https://doi.org/10.1117/12.870589

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