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Proceedings Paper

High-pressure sensor based on fiber in-line Mach-Zehnder interferometer
Author(s): W. Talataisong; D. N. Wang; R. Chitaree; C. R. Liao; C. Wang
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Paper Abstract

A fiber in-line Mach-Zehnder interferometer based on an inner air-cavity is presented for high-pressure measurement. The inner air-cavity is fabricated by use of femtosecond laser micromachining together with fusion splicing technique. A micro-channel is created on the top of the inner air-cavity to allow the high pressure gas to flow in. The fiber in-line device is featured with miniature size, good robustness and excellent operation stability while exhibiting a high pressure sensitivity of 8,239 pm/MPa.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96345B (28 September 2015); doi: 10.1117/12.2190520
Show Author Affiliations
W. Talataisong, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Mahidol Univ. (Thailand)
D. N. Wang, The Hong Kong Polytechnic Univ. (Hong Kong, China)
China Jiliang Univ. (China)
R. Chitaree, Mahidol Univ. (Thailand)
C. R. Liao, The Hong Kong Polytechnic Univ. (Hong Kong, China)
C. Wang, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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