Title :
A Quasi-Distributed Sensing Network With Time-Division-Multiplexed Fiber Bragg Gratings
Author :
Wang, Yunmiao ; Gong, Jianmin ; Wang, Dorothy Y. ; Dong, Bo ; Bi, Weihong ; Wang, Anbo
Author_Institution :
Bradly Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA, USA
Abstract :
We propose a serial time-division-multiplexing sensor network based on ultraweak fiber Bragg gratings (FBGs). Twelve ultraweak FBGs are distinguished with a spatial resolution of about 0.2 m, and their spectra are resolved with an accuracy of about 10 pm. The low crosstalk of the gratings makes it possible to multiplex over 1000 gratings along a single optical fiber.
Keywords :
Bragg gratings; fibre optic sensors; time division multiplexing; quasi distributed sensing network; serial time division-multiplexing sensor network; time division multiplexed fiber Bragg gratings; ultraweak fiber Bragg gratings; Arrays; Crosstalk; Fiber gratings; Optical fiber sensors; Time division multiplexing; Fiber Bragg grating (FBG); optical fiber sensors; quasi-distributed sensing; time-division multiplexing (TDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2089676
