Er添加ファイバに形成するファイバグレーティングの利得回折格子法によるブラッグ波長制御

書誌事項

タイトル別名
  • Gain Grating Method to Control Bragg Wavelengths of Fiber Gratings Formed in Er-Doped Fibers
  • Er テンカ ファイバ ニ ケイセイスル ファイバ グレーティング ノ リトク

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説明

The principle of a novel gain grating method, which enables an on-line monitoring of the Bragg wavelengths of fiber gratings (FG's) to be formed in Er-doped fibers (EDF's), is experimentally confirmed. The 532nm second harmonic of a mode-locked Nd: YAG laser is used as a writing light source in this experiment. Firstly, it is observed that the 532nm light can induce a refractive index change in EDF's which is enough for FG formations. Secondly, the formation of gain gratings in EDF's is confirmed, and a wavelength controllability better than 0.2nm is expected.

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