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Proceedings Paper

Acoustic strain effect of multimode fiber optic sensor
Author(s): Xiufeng Chen; Dongxiao Yang; Bin Lai; Zhineng Li
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Paper Abstract

This paper describes an acoustic strain effect of a multimode optic-fiber sensor. The transmitted coherent light wave through a multimode fiber produces a complex speckle pattern. This pattern is analyzed with the method of modal interference. The speckle pattern changes with the acoustic phase modulation of the modes. The light intensity has been measured. An experimental system of this sensor has been built up. The spectrum of the acoustic effect has been obtained.

Paper Details

Date Published: 24 September 1996
PDF: 9 pages
Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); doi: 10.1117/12.252174
Show Author Affiliations
Xiufeng Chen, Zhejiang Univ. (China)
Dongxiao Yang, Zhejiang Univ. (China)
Bin Lai, Zhejiang Univ. (China)
Zhineng Li, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 2895:
Fiber Optic Sensors V
Kim D. Bennett; Byoung Yoon Kim; Yanbiao Liao, Editor(s)

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