超短パルスレーザーによるFBG センサの製作と性能評価
英字タイトル:
Fabrication and performance assessment of FBG sensor with pulse laser processing
著者:
島田 幸洋 Yukihiro SHIMADA 西村 昭彦 Akihiko NISHIMURA 猿田 晃一 Koichi SARUTA 月森 和之 Kazuyuki TSUKIMORI 小林 喬郎 Takao KOBAYASHI
発刊日:
公開日:
Fiber Bragg GratingHigh TemperaturePulse Laser ProcessingSeismic Safety
Fabrication and performance assessment of FBG sensor with pulse laser processing
著者:
島田 幸洋 Yukihiro SHIMADA 西村 昭彦 Akihiko NISHIMURA 猿田 晃一 Koichi SARUTA 月森 和之 Kazuyuki TSUKIMORI 小林 喬郎 Takao KOBAYASHI
発刊日:
公開日:
カテゴリ: 第6回
キーワードタグ:Fiber Bragg GratingHigh TemperaturePulse Laser ProcessingSeismic Safety
概要
Fiber Bragg Grating (FBG) is the periodic refractive-index structure in an optical fiber core, where the light of a specific wavelength is reflected. It can be used as te mperature or a distorted sensor by measuring change of the reflective wavelength of FBG. We processed FBG using a Chirped Pulse Amplification titanium sapphire laser. As a result, the peak intensity of reflective spectrum has been successfully improved from -40 dB to -24 dB. Heating test under operational temperature of Fast Breeder React ors is now planed. The heat-resistant FBG sensor developed using ultra-short pulse laser processing will contribute to the surveillance of power plants for seismic safety.
