Reducing location error and processing time of dual Mach-Zehnder interferometric fiber perturbation sensor using zero-crossing analysis

Xiaoping Zhang; Tiegen Liu; Kun Liu; Junfeng Jiang; Zhenyang Ding; Qinnan Chen

doi:10.1117/12.975633

7 November 2012 Reducing location error and processing time of dual Mach-Zehnder interferometric fiber perturbation sensor using zero-crossing analysis

Xiaoping Zhang, Tiegen Liu, Kun Liu, Junfeng Jiang, Zhenyang Ding, Qinnan Chen

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421A8 (2012) https://doi.org/10.1117/12.975633
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A novel location algorithm based on zero-crossing analysis is introduced in this paper to reduce the location error and processing time of dual Mach-Zehnder interferometric (DMZI) fiber perturbation sensor. The algorithm can extract highfrequency part from original signal and obtain perturbation location using cross correlation in a very short process time. By extracting high-frequency signal, the algorithm can also acquire a low perturbation location error. Experiment results show that the perturbation location error only has 10 m and the processing time is less than 0.13s in the case of 10MHz sample rate.

Citation Download Citation

Xiaoping Zhang, Tiegen Liu, Kun Liu, Junfeng Jiang, Zhenyang Ding, and Qinnan Chen "Reducing location error and processing time of dual Mach-Zehnder interferometric fiber perturbation sensor using zero-crossing analysis", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421A8 (7 November 2012); https://doi.org/10.1117/12.975633

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