A NOVEL CHIRPED-FBG-BASED F-P SENSOR NETWORK USING SFDM/WDM
In this paper, an effective multiplexing method based on combination of wavelength division multiplexing (WDM) and spatial-frequency division multiplexing (SFDM) for a very large number of FBG-based Fabry-Perot (FBGFP) sensors is proposed. For WDM, FBGFP sensors are arranged in different wavelength domains formed by a series of chirped FBGs with different central wavelengths while the sensors with different cavity lengths within the same wavelength domain are multiplexed by using SFDM as they have different spatial frequencies resulted from different cavity lengths. The experimental results show that a strain accuracy of better than ±10με.has been achieved with little cross-talk.
Fiber-optic F-P Sensors Chirped Fiber Bragg Gratings Multiplexing Strain sensors
Y. J. Rao Q. T. Tang C. X. Zhou T. Zhu
The Key Lab of Broadband Optical Fiber Transmission & Communication Networks (Education Ministry), U The Key Lab of Optoelectronic Technology & Systems (Education Ministry), Chongqing University,Chongq
国际会议
成都
英文
488-491
2006-09-18(万方平台首次上网日期,不代表论文的发表时间)