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Quasi-distributed fiber sensor using active mode locking laser cavity with multiple FBG reflections
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Paper Abstract

We have demonstrated a quasi-distributed sensor using an active mode-locking (AML) laser with multiple fiber Bragg grating (FBG) reflections of the same center wavelength. We found that variations in the multiple cavity segment lengths between FBGs can be measured by simply sweeping the modulation frequency, because the modulation frequency of the AML laser is proportionally affected by cavity length.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103235M (23 April 2017); doi: 10.1117/12.2267642
Show Author Affiliations
Chang Hyun Park, Pusan National Univ. (Korea, Republic of)
Gyeong Hun Kim, Pusan National Univ. (Korea, Republic of)
Chang-Seok Kim, Pusan National Univ. (Korea, Republic of)
Hwi Don Lee, Gwangju Institute of Science and Technology (Korea, Republic of)
Youngjoo Chung, Gwangju Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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