Hybrid BOTDA/FBG sensor for discrete dynamic and distributed static strain/temperature measurements

We propose and experimentally demonstrate a hybrid fiber optic sensing technique that effectively combines Brillouin optical time-domain analysis and a time-domain multiplexing interrogation technique for Fiber Bragg Gratings (FBGs). The highly-integrated proposed scheme employs broadband apodized low-reflectivity FBGs with a single optical source and a shared receiver block, allowing for simultaneous measurements of distributed static and discrete dynamic temperature and strain, over the same sensing fiber.


Published in:
Proc. SPIE 8421
Presented at:
OFS2012 22nd International Conference on Optical Fiber Sensors, Beijing, China, 15-19 October 2012
Year:
2012
Laboratories:




 Record created 2012-12-13, last modified 2018-03-17

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