Fiber Michelson sensor signal processing by using optical bistable device in frequency domain

Guohui Lv; Jinping Ou; Huiying Wang; Shaohua Shang; Chao Yang; Chuandi Li; Hongan Ye

doi:10.1117/12.779848

1 November 2007 Fiber Michelson sensor signal processing by using optical bistable device in frequency domain

Guohui Lv, Jinping Ou, Huiying Wang, Shaohua Shang, Chao Yang, Chuandi Li, Hongan Ye

Proceedings Volume 6423, International Conference on Smart Materials and Nanotechnology in Engineering; 642328 (2007) https://doi.org/10.1117/12.779848
Event: International Conference on Smart Materials and Nanotechnology in Engineering, 2007, Harbin, China

Abstract

In this article, a novel technique of fiber sensor demodulation for fiber Michelson interferometric sensor is proposed. The output optical signal of the interferometric sensor is processed by a hybrid optical bistable device in frequency domain. When the optical path difference between the two arms of the sensor changing, it will cause the bistable device switching on and switching off. The measurement is realized by counting the optoelectronic pulses. The experimental and simulation results show that this technique with high accuracy, the resolution of the length measurement is nanometer level.

Citation Download Citation

Guohui Lv, Jinping Ou, Huiying Wang, Shaohua Shang, Chao Yang, Chuandi Li, and Hongan Ye "Fiber Michelson sensor signal processing by using optical bistable device in frequency domain", Proc. SPIE 6423, International Conference on Smart Materials and Nanotechnology in Engineering, 642328 (1 November 2007); https://doi.org/10.1117/12.779848

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KEYWORDS

Sensors

Fiber optics sensors

Signal processing

Ferroelectric materials

Switching

Fiber lasers

Demodulation

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