Title :
Distributed sensing inside long-length FBG at region beyond laser coherence length based on synthesis of optical coherence function
Author :
Kajiwara, Koji ; He, Zuyuan ; Hotate, Kazuo
Author_Institution :
Dept. of Electr. Eng. & Inf. Syst., Univ. of Tokyo, Tokyo, Japan
Abstract :
Measurement of Bragg-wavelength distribution inside a long-length FBG at region beyond laser coherence length is demonstrated based on synthesis of optical coherence function for a multi-point distributed sensor system with wide measurement range.
Keywords :
Bragg gratings; fibre optic sensors; light coherence; reflectometry; Bragg wavelength distribution measurement; distributed sensing; laser coherence length; long length FBG; multipoint distributed sensor system; optical coherence function; Bragg gratings; Coherence; Frequency modulation; Length measurement; Measurement by laser beam; Optical reflection; Optical sensors;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
