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Proceedings Paper

BPM analysis of all-optical fiber interferometric sensor based on a U-shape microcavity
Author(s): Hongbin Wu; Lei Yuan; Sumei Wang; Longjiang Zhao; Zhitao Cao
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Paper Abstract

Reflectivity spectrum of beam propagation method (BPM), for the first time to the best of our knowledge, is realized and utilized to model all-optical fiber interferometric sensor formed by a U-shape microcavity embedded in a single mode optical fiber and illustrate the principle of sensor structures varied by the length and the depth of U-shape microcavity. BPM analysis gives a constructive guideline to get a high interferometric fringe visibility which is most important for sensing application. The simulated results are completely in agreement with the interferometric sensor principle of Fabry-Perot interferometer (FPI) theory. With the conclusion of FPI sensor, refractive index (RI) sensitivity and temperature sensitivity are then simulated and obtained as 1049±5.2nm/RIU (refractive index unit) within RI range of solutions and 1.04±0.03pm/°C respectively.

Paper Details

Date Published: 21 February 2014
PDF: 6 pages
Proc. SPIE 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013, 91422A (21 February 2014); doi: 10.1117/12.2054263
Show Author Affiliations
Hongbin Wu, Beijing Institute of Technology (China)
Lei Yuan, Beijing Institute of Technology (China)
Sumei Wang, Beijing Institute of Technology (China)
Longjiang Zhao, The 3rd Research Institute of China Electronics Technology Group Corp. (China)
Zhitao Cao, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 9142:
Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013
Jorge Ojeda-Castaneda; Shensheng Han; Ping Jia; Jiancheng Fang; Dianyuan Fan; Liejia Qian; Yuqiu Gu; Xueqing Yan, Editor(s)

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