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Proceedings Paper

Simultaneous measurement of strain and temperature using a Lyot fiber filter and a fiber Bragg grating in linear configuration
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Paper Abstract

We report a fiber sensor capable of simultaneously measuring temperature and strain. A fiber Bragg grating (FBG) was incorporated in a Lyot fiber filter (LFF) by fusion splicing a section of high birefringence fiber (PM fiber) with an FBG and then placing them between 2 polarizers. Measured in the transmission mode, the fringe resulted from the LFF and the resonance wavelength dip of the FBG has different responses when a variation of temperature or strain is applied. The proposed device can therefore measure both strain and temperature simultaneously.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70044D (16 May 2008); doi: 10.1117/12.786061
Show Author Affiliations
Linh Viet Nguyen, Gwangju Institute of Science and Technology (South Korea)
Dusun Hwang, Gwangju Institute of Science and Technology (South Korea)
Dae Seung Moon, Gwangju Institute of Science and Technology (South Korea)
Youngjoo Chung, Gwangju Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors

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