Abstract
A novel fiber Bragg grating (FBG) sensing system based on a spectrum-limited Fourier domain mode-locking (SL-FDML) fiber laser is proposed. Multiple FBGs cascaded in a long fiber are utilized as both the sensors in the system and the wavelength-selected components in the SL-FDML fiber laser. Both wavelength-division multiplexing and spatial-division multiplexing techniques are demonstrated for interrogation of multiple FBGs by mapping the wavelength measurement to the time measurement and by adjusting the driving frequency of the SL-FDML fiber laser. The proposed FBG sensing system, employing techniques of the wavelength- and spatial-domain interrogation of multiple FBGs, can be used in remote and quasi-distributed multipoint sensing.
© 2008 Optical Society of America
Full Article | PDF ArticleMore Like This
Sunduck Kim, Oh-Jang Kwon, Hyeong-Seok Lee, Chang-Seok Kim, and Young-Geun Han
Opt. Express 21(11) 13402-13407 (2013)
Xiao Liang, Zhengying Li, Yiming Wang, Yarong Hou, and Peng Shen
Appl. Opt. 57(28) 8148-8153 (2018)
Bin Zhou, Zuguang Guan, Chunsheng Yan, and Sailing He
Opt. Lett. 33(21) 2485-2487 (2008)