Highly sensitive long-period fiber grating temperature sensor

Shun-Yee Liu; Hwa-Yaw Tam; M. Suleyman Demokan

doi:10.1117/12.446627

29 October 2001 Highly sensitive long-period fiber grating temperature sensor

Shun-Yee Liu, Hwa-Yaw Tam, M. Suleyman Demokan

Proceedings Volume 4595, Photonic Systems and Applications; (2001) https://doi.org/10.1117/12.446627
Event: International Symposium on Photonics and Applications, 2001, Singapore, Singapore

Abstract

A novel technique to increase the temperature sensitivity of LPGs by exploiting the relatively large thermal coefficient of index-matching fluid to induce a large spectral shift of the LPG is reported in this paper. It is shown that the wavelength shift with temperature for such a LPG sensor can be as much as 1,500 times larger than that of sensors made of fiber Bragg gratings. A LPG-based temperature sensor with a resolution of about 0.03 degree(s)C is reported.

Citation Download Citation

Shun-Yee Liu, Hwa-Yaw Tam, and M. Suleyman Demokan "Highly sensitive long-period fiber grating temperature sensor", Proc. SPIE 4595, Photonic Systems and Applications, (29 October 2001); https://doi.org/10.1117/12.446627

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