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Proceedings Paper

Performance comparison of fiber Bragg gratings sensor interrogation using two kinds of wavelength-swept lasers
Author(s): Ik Gon Park; Byeong Kwon Choi; Yong Seok Kwon; Min Yong Jeon
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Paper Abstract

We report a performance comparison of fiber Bragg gratings (FBGs) sensor interrogation using two kinds of wavelength swept lasers. In a wavelength swept laser with a fiber Fabry-Perot tunable filter (FFP-TF), the reflected signal from the FBGs in temporal domain has a nonlinear response with respect to the sinusoidal modulation signal. The output of the time delay for the strained FBGs sensor array in the wavelength swept laser with FFP-TF has different slope coefficient for each FBGs, while the reflected output of the strained FBGs in the wavelength swept laser with polygon scanning filter has same slope coefficient for each FBGs.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84214M (17 October 2012); doi: 10.1117/12.974906
Show Author Affiliations
Ik Gon Park, Chungnam National Univ. (Korea, Republic of)
Byeong Kwon Choi, Chungnam National Univ. (Korea, Republic of)
Yong Seok Kwon, Chungnam National Univ. (Korea, Republic of)
Min Yong Jeon, Chungnam National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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