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Proceedings Paper

Hydrostatic pressure sensor based on fiber Bragg grating written in single-ring suspended fiber
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Paper Abstract

We present a novel optical fiber consisting of a suspended-fiber with core and cladding diameter of ~ 5 and 30 μm and a supporting ring with thickness of ~ 9 μm. The outer diameter of the fiber was 125 μm and a fiber Bragg grating (FBG) with a length of 1-mm was inscribed on it. Hydrostatic pressure was measured by monitoring the Bragg wavelength shifts of 9-mm long single-ring suspended fiber. Pressure sensitivity was measured to be –18.92 pm/MPa, which is about five times higher than FBG on standard single-mode fiber.

Paper Details

Date Published: 30 May 2016
PDF: 4 pages
Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99161R (30 May 2016); doi: 10.1117/12.2235842
Show Author Affiliations
Lin Htein, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Zhengyong Liu, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Hwa-Yaw Tam, The Hong Kong Polytechnic Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 9916:
Sixth European Workshop on Optical Fibre Sensors
Elfed Lewis, Editor(s)

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