Highly-Sensitive and -Linear Cryogenic Temperature Response of Long-Period Fiber Gratings Written on B--Ge-Codoped Photosensitive Fiber
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概要
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In this paper, we report the highly-sensitive and -linear cryogenic temperature response of long-period fiber gratings (LPFGs) written on B--Ge-codoped photosensitive single-mode fiber. The resonance wavelength of the fabricated LPFG was monitored at a temperature range from 77 to 295 K. The temperature sensitivity of the resonance wavelength was measured as {\sim}398 pm/K, which was higher than that of fiber grating sensors in a comparable cryogenic temperature range reported by other research groups. In particular, the linearity of the temperature response curve was very good (R^{2} value of {\sim}0.9979).
- 2012-09-25
著者
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Lee Byoungho
School Of Electrical Engineering Seoul National University
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Lee Yong
School Of Bioscience And Biotechnology And Institute Of Bioscience And Biotechnology Kangwon Nationa
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Roh Sookyoung
School of Electrical Engineering, Seoul National University, Kwanak-Gu Shinlim-Dong, 151-744 Seoul, Korea
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Lee Byoungho
School of Electrical Engineering, Seoul National University, Seoul 151-744, Korea
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Choi Daeho
School of Electrical Engineering, Pukyong National University, Busan 608-737, Korea
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Kim Jihoon
School of Electrical Engineering, Pukyong National University, Busan 608-737, Korea
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Roh Sookyoung
School of Electrical Engineering, Seoul National University, Seoul 151-744, Korea
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