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Conferences > OFS > 2006 > ThE > ThE24

Long-distance FBG sensor system using high-speed swept-wavelength light source

Takanori Saitoh, Kenichi Nakamura, Yoshifumi Takahashi, Hiroyuki Iida, Yoshimitsu Iki, and Koichiro Miyagi

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Abstract

A long-distance Fiber Bragg Grating (FBG) sensor system using a high-speed swept-wavelength light source (HSLS) is proposed and demonstrated. Output power of the HSLS is turned on/off and its timing is synchronized to the sweep signal of the HSLS to reduce optical noise induced by Rayleigh scattering generated from the transmission fiber. This system can detect change of FBG reflection wavelengths even if the FBGs are located at a 100km remote sensing position.

© 2006 IEICE

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