A Quasi-Distributed Sensing Network With Time-Division-Multiplexed Fiber Bragg Gratings

作者：Wang Yunmiao^*; Gong Jianmin; Wang Dorothy Y; Dong Bo; Bi Weihong; Wang Anbo

来源：IEEE Photonics Technology Letters, 2011, 23(2): 70-72.

DOI：10.1109/LPT.2010.2089676

• Fiber Bragg grating (FBG)
• optical fiber sensors
• quasi-distributed sensing
• time-division multiplexing (TDM)

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.

• 出版日期2011-1-15
• 单位Virginia Tech; 美国弗吉尼亚理工大学(Virginia Tech); 燕山大学