光致退火方法以及應用該方法之光纖裝置Shorter Wavelength Photo-annealing Apparatus for Rare-Earth-Doped Fiber and Its Optical Assemblies Under Irradiation

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

13/937,786

專利證號

US 9,077,143 B2

專利獲證名稱

光致退火方法以及應用該方法之光纖裝置Shorter Wavelength Photo-annealing Apparatus for Rare-Earth-Doped Fiber and Its Optical Assemblies Under Irradiation

專利所屬機關 (申請機關)

財團法人國家實驗研究院

獲證日期

2015/07/07

技術說明

本專利係有關一種減輕輻射破壞摻鉺光纖元件之方法，利用光致退火效應，由一退火光源傳導在摻鉺光纖內，以回復因輻射破壞產生的光功率損耗，有效回復摻鉺光纖光功率損耗的波長範圍至少從900奈米至1700奈米，退火的光源可為雷射或是寬頻光源，其工作波長範圍從355奈米至980奈米，而此退火光源可同時為摻鉺光纖的泵激光源，或是另外導入的光源。此方法製作的抗輻摻鉺光纖元件，可應用於太空導控、遙測、通訊等領域如光纖陀螺儀做為衛星的導航、姿控元件，或是其他輻射環境下如核子發電廠設施等的應用。 The invention relates to mitigate the damage of an erbium doped fiber (EDF) caused by irradiation. When the light from a specific source is coupled to an EDF, it can recover the radiation-induced optical loss of the EDF in the wavelength range at least from 900 nm to 1700 nm, attributed to photo-annealing effect. The light source for photo-annealing can be a laser or a broadband light source with suitable wavelength ranging from 355 nm to 980 nm. The source can be the same pump for EDF, or an additional one. The radiation-tolerant EDF devices made by this method can be applied to the applications of space navigation, remote-sensing, communication and etc. such as for fiber-optic gyroscopes as satellite attitude and navigation sensors, or to other irradiation environments such as nuclear power plant facilities and etc.

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