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Conferences > APOS > 2016 > W4A > W4A.17

Novel interrogation of the multiple FBGs with same Bragg wavelength by using active mode locking cavity

Gyeong Hun Kim, Chang Hyun Park, Chang-Seok Kim, Hwi Don Lee, and Youngjoo Chung

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Abstract

We proposed a new type of fiber Bragg gratings (FBG) interrogator using active mode locking (AML) technique. Since the interrogation mechanism is based on the separated detection of actively mode-locked frequency of each series FBG in the AML cavity, we can successfully interrogate the multiple FBGs with same wavelength. The static strain measurement of FBG sensor shows a high linear response with the R-square value of 0.9990.

© 2016 Optical Society of America

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