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14 February 2019 Simultaneous measurements of refractive index and temperature based on Mach-Zehnder interferometer with sphere-trapezoid structure
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Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 110484N (2019) https://doi.org/10.1117/12.2522917
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China
Abstract
A new Mach-Zehnder interferometer sensor , which can simultaneously gauge refractive index (RI) and temperature, is realized. A sphere-trapezoid structure used as a coupler is formed by splicing sphere and trapezoid cone. The extinction ratio of the transmission spectra can achieve 10dB. The RI sensitivities of the two interference valleys are -51.2nm/RIU and -36.5nm/RIU. The temperature sensitivities of them are 0.063nm/°C and 0.064nm/°C. Therefore it can be realized to gauge the RI and the temperature simultaneously. The proposed sensor can also be applied to chemistry and biology, it has broad application prospects.
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Weihua Zhang, Wenlin Gao, Zhengrong Tong, Yimei Zhong, and Juan Qin "Simultaneous measurements of refractive index and temperature based on Mach-Zehnder interferometer with sphere-trapezoid structure ", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110484N (14 February 2019); doi: 10.1117/12.2522917; https://doi.org/10.1117/12.2522917
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