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Proceedings Paper

Inner air-cavity based fiber in-line Mach –Zehnder interferometer fabricated by femtosecond laser and fusion splicing
Author(s): T. Y. Hu; Y. Wang; C. R. Liao; D. N. Wang
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Paper Abstract

We demonstrate a miniaturized fiber in-line Mach–Zehnder interferometer high-temperature sensor based on inner aircavity adjacent to the fiber core, fabricated by femto-second laser micromachining and fusion splicing technique. Such a device is robust and insensitive to ambient refractive index change, with high temperature sensitivity of ~43.2 pm/°C, up to 1000°C,while exhibiting low cross-sensitivity to strain.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89242X (15 October 2013);
Show Author Affiliations
T. Y. Hu, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Y. Wang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Wuhan Institute of Technology (China)
C. R. Liao, The Hong Kong Polytechnic Univ. (Hong Kong, China)
D. N. Wang, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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