[20p-P5-1~13] 3.14 Optical control devices and optical fibers

[20p-P5-13] High resolution temperature sensing using a long optical fiber

〇(M1)AMAKA TANAKA¹, Satoru Matsukura¹, Atsuki Ishiguro¹, Kenji Wada¹, Tetsuya Matsuyama¹, Hiromichi Horinaka¹ (1.Osaka Pref.Univ.)

Keywords:semiconductor laser,temperature sensing,gain-switching

The precise measurement technique of single-mode fiber lengths which we have proposed is applied to a high resolution temperature sensor using a long optical fiber. In this report, we found that the temperature resolution of the sensor system including a 2 km fiber reached below 0.001 deg C.