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

Lin Htein; Zhengyong Liu; Hwa-Yaw Tam

doi:10.1117/12.2235842

30 May 2016 Hydrostatic pressure sensor based on fiber Bragg grating written in single-ring suspended fiber

Lin Htein, Zhengyong Liu, Hwa-Yaw Tam

Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 99161R (2016) https://doi.org/10.1117/12.2235842
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

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.

Citation Download Citation

Lin Htein, Zhengyong Liu, and Hwa-Yaw Tam "Hydrostatic pressure sensor based on fiber Bragg grating written in single-ring suspended fiber", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99161R (30 May 2016); https://doi.org/10.1117/12.2235842

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