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28 September 2015 A calibration scheme of optical path correlator scan speed and position based 3×3 coupler and dual Mach-Zehnder interferometer
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96346S (2015) https://doi.org/10.1117/12.2194718
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
This paper proposed a calibration scheme of optical path correlator(OPC) for optical coherence domain polarimeter (OCDP), the calibration scheme employs a dual Mach-Zehnder interferometers multiplexing one OPC by dual wavelength wave division multiplexer, one interferometer as target interferometer is used to sensing measurement, another interferometer with 3×3 coupler as reference interferometer is used for OPC scan speed and positon calibration to improve the target interferometer signal-to-noise ratio(SNR) and interference envelope positioning accuracy, this calibration scheme is used OCDP to measure polarization crosstalk, the experimental results show that SNR is achieved 95dB and the polarization crosstalk position accuracy is achieved submicron.
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Yonggui Yuan, Jun Yang, Bing Wu, Feng Peng, Chuang Li, Shuai Liang, Zhangjun Yu, and Libo Yuan "A calibration scheme of optical path correlator scan speed and position based 3×3 coupler and dual Mach-Zehnder interferometer", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96346S (28 September 2015); https://doi.org/10.1117/12.2194718
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