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8 September 2005 Fiber optic high temperature sensing based on whispering gallery mode resonance
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Abstract
We propose a new mechanism for fiber optic high temperature sensing based on whispering gallery mode resonance in bent optical fibers. Due to the strong whispering gallery mode resonance in cladding-thinned bent optical fibers, long-period grating-like deep spectral peaks are formed in the wavelength domain. The wavelength shift of the resonance peaks as a function of temperature is investigated. It is demonstrated that the single loop of bend ring in the fibers can be used as a transducer for high temperature sensing without any internal structure.
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Sung Hyun Nam, Shizhuo Yin, Karl M. Reichard, and Kung-Li Deng "Fiber optic high temperature sensing based on whispering gallery mode resonance", Proc. SPIE 5911, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XI, 59110W (8 September 2005); doi: 10.1117/12.613063; https://doi.org/10.1117/12.613063
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