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Proceedings Paper

Refractive index insensitive temperature sensor based on hollow annular core fiber Mach-Zehnder interferometer
Author(s): Yaxun Zhang; Ai Zhou; Quan Xu; Boyang Qin; Zhihai Liu
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Paper Abstract

We propose a refractive index insensitive temperature sensor based on hollow annular core fiber (HACF) Mach-Zehnder interferometer (MZI). The HACF is composed of a large-diameter air hole, an annular core around the air hole and a cladding. The MZI is fabricated by inserting a short section of the HACF between two short multimode fibers, and the interference occurs between the light beams transmitting along the air hole and the annular core of the HACF. Experimental results show that the MZI is insensitive to external refractive index and has temperature sensitivity of 30 pm/°C.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915729 (2 June 2014); doi: 10.1117/12.2059532
Show Author Affiliations
Yaxun Zhang, Harbin Engineering Univ. (China)
Ai Zhou, Harbin Engineering Univ. (China)
Quan Xu, Harbin Engineering Univ. (China)
Boyang Qin, Harbin Engineering Univ. (China)
Zhihai Liu, Harbin Engineering Univ. (China)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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