Fiber optic vibration sensor based on over-coupled fused coupler

Jun Chang; Liangzhu Ma; Tongyu Liu; Hongchun Wang; Dianheng Huo; Jiasheng Ni; Zhidong Shi

doi:10.1117/12.726515

5 March 2007 Fiber optic vibration sensor based on over-coupled fused coupler

Jun Chang, Liangzhu Ma, Tongyu Liu, Hongchun Wang, Dianheng Huo, Jiasheng Ni, Zhidong Shi

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65954C (2007) https://doi.org/10.1117/12.726515
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

The theory and experiment results of fiber optic vibration sensor based on over-coupled fused coupler (OCFC) is described, 2 novel scheme to form single-end sensor is presented, i.e. OCFC sensor with a reflection mirror and OCFC fiber loop sensor, the transmission spectrum of these OCFC sensor when applied with different strains is investigated and interrogation system is developed, the output of these sensors when applied with vibration and shock is shown. We demonstrate that the OCFC fiber loop sensor is feasible to have practical use to measure vibration signal because the sensor is easy to be fabricated, it has good low and high frequency response and the interrogation system is simple, low cost.

Citation Download Citation

Jun Chang, Liangzhu Ma, Tongyu Liu, Hongchun Wang, Dianheng Huo, Jiasheng Ni, and Zhidong Shi "Fiber optic vibration sensor based on over-coupled fused coupler", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65954C (5 March 2007); https://doi.org/10.1117/12.726515

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