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Proceedings Paper

Simultaneous measurements of refractive index and temperature based on Mach-Zehnder interferometer with sphere-trapezoid structure
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Paper 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.

Paper Details

Date Published: 14 February 2019
PDF: 5 pages
Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110484N (14 February 2019); doi: 10.1117/12.2522917
Show Author Affiliations
Weihua Zhang, Tianjin Univ. of Technology (China)
Wenlin Gao, Tianjin Univ. of Technology (China)
Zhengrong Tong, Tianjin Univ. of Technology (China)
Yimei Zhong, Tianjin Univ. of Technology (China)
Juan Qin, Tianjin Univ. of Technology (China)


Published in SPIE Proceedings Vol. 11048:
17th International Conference on Optical Communications and Networks (ICOCN2018)
Zhaohui Li, Editor(s)

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