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Proceedings Paper

Fiber Bragg grating strain sensor interrogation with 1.3 μm Fourier domain mode-locked wavelength swept laser
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Paper Abstract

We demonstrate a high speed fiber Bragg grating sensor array interrogation using 1.3 μm Fourier-domain modelocked (FDML) wavelength-swept laser. The slope coefficients for measured relative wavelength difference and relative time delay from the static strain are 1.02 pm/μstrain and 0.16 ns/μstrain, respectively. We demonstrate the dynamic response of the FBG sensor array with 100 Hz modulation strain based on the FDML wavelength swept laser at 25.3 kHz scanning rate. The FBG sensor interrogation system using FDML wavelength swept laser can be realized for the high speed and high sensitivity monitoring systems.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75035F (5 October 2009); doi: 10.1117/12.835227
Show Author Affiliations
Byoung Chang Lee, Chungnam National Univ. (Korea, Republic of)
Min Hyun Oh, Chungnam National Univ. (Korea, Republic of)
Min Yong Jeon, Chungnam National Univ. (Korea, Republic of)
Eun Joo Jung, Pusan National Univ. (Korea, Republic of)
Chang-seok Kim, Pusan National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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