A refractive index sensor based on taper Michelson interferometer in multimode fiber

Xinghu Fu; Jiangpeng Zhang; Siwen Wang; Guangwei Fu; Qiang Liu; Wa Jin; Weihong Bi

doi:10.1117/12.2247707

14 November 2016 A refractive index sensor based on taper Michelson interferometer in multimode fiber

Xinghu Fu, Jiangpeng Zhang, Siwen Wang, Guangwei Fu, Qiang Liu, Wa Jin, Weihong Bi

Proceedings Volume 10025, Advanced Sensor Systems and Applications VII; 100251K (2016) https://doi.org/10.1117/12.2247707
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

A refractive index sensor based on taper Michelson interferometer in multimode fiber is proposed. The Hydrofluoric acid corrosion processing is studied in the preparation of single cone multimode optical fiber sensor. The taper Michelson interferometer is fabricated by changing corrosion time. The relationship between fiber sensor feature and corrosion time is analyzed. The experimental results show that the interference spectrum shift in the direction of short wave with the increase of the refractive index. The refractive index sensitivity can reach 115.8008 nm/RIU. Thereby, it can be used in detecting the refractive index in different areas including the environmental protection, health care and food production.

Citation Download Citation

Xinghu Fu, Jiangpeng Zhang, Siwen Wang, Guangwei Fu, Qiang Liu, Wa Jin, and Weihong Bi "A refractive index sensor based on taper Michelson interferometer in multimode fiber", Proc. SPIE 10025, Advanced Sensor Systems and Applications VII, 100251K (14 November 2016); https://doi.org/10.1117/12.2247707

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