Acoustic strain effect of multimode fiber optic sensor

Xiufeng Chen; Dongxiao Yang; Bin Lai; Zhineng Li

doi:10.1117/12.252174

24 September 1996 Acoustic strain effect of multimode fiber optic sensor

Xiufeng Chen, Dongxiao Yang, Bin Lai, Zhineng Li

Proceedings Volume 2895, Fiber Optic Sensors V; (1996) https://doi.org/10.1117/12.252174
Event: Photonics China '96, 1996, Beijing, China

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.

Citation Download Citation

Xiufeng Chen, Dongxiao Yang, Bin Lai, and Zhineng Li "Acoustic strain effect of multimode fiber optic sensor", Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); https://doi.org/10.1117/12.252174

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