Fiber Mach-Zehnder interferometer based on multi-mode fiber and up-taper for curvature sensing applications

Lili Mao; Ping Lu; Zefeng Lao; Deming Liu

doi:10.1117/12.2031513

15 October 2013 Fiber Mach-Zehnder interferometer based on multi-mode fiber and up-taper for curvature sensing applications

Lili Mao, Ping Lu, Zefeng Lao, Deming Liu

Author Affiliations +

Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 89240O (2013) https://doi.org/10.1117/12.2031513
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China

Abstract

A novel curvature sensor comprize a section of multi-mode fiber and a up-taper is proposed and demonstrated experimentally. The whole fabrication process is quite simple and the sensor head is cost effective. Measurement results show that it has a maximum curvature sensitivity of -61.877nm/m^-1 at 1.1718m^-1 and -9.2115nm/m^-1 from 1.1718m^-1 to 1.6583m^-1. Temperature sensitivity of 89.01 pm/°C within the range of 20~80 °C has also been achieved, which implies the possibility for measurement of temperature. High sensitivity and low-cost make it a preferable candidate for curvature sensing in practical applications.

Citation Download Citation

Lili Mao, Ping Lu, Zefeng Lao, and Deming Liu "Fiber Mach-Zehnder interferometer based on multi-mode fiber and up-taper for curvature sensing applications", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89240O (15 October 2013); https://doi.org/10.1117/12.2031513

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