河(M1)のプラスチック光ファイバ中のモード間干渉を用いた歪・温度センサに関する論文が IEICE Electronics Express に掲載されました。

T. Kawa, G. Numata, H. Lee, N. Hayashi, Y. Mizuno, and K. Nakamura, “Single-end-access strain and temperature sensing based on multimodal interference in polymer optical fibers“, IEICE Electron. Express, vol. 14, no. 3, 20161239 (2017).

We develop a single-end-access strain/temperature sensor configuration based on multimodal interference in a polymer optical fiber (POF) with an extremely high sensitivity. The light Fresnel-reflected at the distal open end of the POF is exploited. We obtain high strain and temperature sensitivities of –122.2 pm/µε and 10.1 nm/°C, respectively, which are shown to be comparable to those in two-end-access configurations.