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

Linh Viet Nguyen; Dusun Hwang; Dae Seung Moon; Youngjoo Chung

doi:10.1117/12.786061

16 May 2008 Simultaneous measurement of strain and temperature using a Lyot fiber filter and a fiber Bragg grating in linear configuration

Linh Viet Nguyen, Dusun Hwang, Dae Seung Moon, Youngjoo Chung

Author Affiliations +

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70044D (2008) https://doi.org/10.1117/12.786061
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

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.

Citation Download Citation

Linh Viet Nguyen, Dusun Hwang, Dae Seung Moon, and Youngjoo Chung "Simultaneous measurement of strain and temperature using a Lyot fiber filter and a fiber Bragg grating in linear configuration", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70044D (16 May 2008); https://doi.org/10.1117/12.786061

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