Model analysis of single-mode optical fiber extrinsic Fabry-Perot interferometric sensors

Weiyu Wang; Min Zhang; Qiaofeng Tan

doi:10.1117/12.968203

7 November 2012 Model analysis of single-mode optical fiber extrinsic Fabry-Perot interferometric sensors

Weiyu Wang, Min Zhang, Qiaofeng Tan

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421AH (2012) https://doi.org/10.1117/12.968203
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

We revise the demodulation model for single-mode optical fiber extrinsic Fabry-Perot interferometric sensors on account of mode-coupling theory and manufacturing imperfections of fiber sensors. This new model can be used to estimate the large system errors of absolute measurements and explain the big difference of demodulation results with different incident central wavelengths of light source. The measurement error of traditional free-space plane-wave model in demodulating cavity-length variation of fiber sensors is also analyzed.

Citation Download Citation

Weiyu Wang, Min Zhang, and Qiaofeng Tan "Model analysis of single-mode optical fiber extrinsic Fabry-Perot interferometric sensors", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AH (7 November 2012); https://doi.org/10.1117/12.968203

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