Next generation of Faraday rotators: oxides for high-power lasers and fluorides for the UV-visible

カテゴリ: 部門大会

論文No: TC1-2

グループ名: 【C】平成27年電気学会電子・情報・システム部門大会講演論文集

発行日: 2015/08/27

タイトル(英語): Next generation of Faraday rotators: oxides for high-power lasers and fluorides for the UV-visible

著者名: ビジョラガルシア (National Institute for Materials Science),島村 清史(National Institute for Materials Science)

著者名(英語): E. Garcia Villora (National Institute for Materials Science),Kiyoshi Shimamura(National Institute for Materials Science)

キーワード: Optical isolator|Faraday rotator|High-power laser|Single crystal|Optical isolator|Faraday rotator|High-power laser|Single crystal

要約(日本語): The oxide garnet {Tb3}[Sc2-xLux](Al3)O12 (TSLAG) has been developed as alternative to Tb3Ga5O12 (TGG). TSLAG possesses superior properties in terms of transmittance, Verdet constant, and radiation resistance. Therefore, it’s being incorporated in high-power laser-machinery. Further, PrF3 and CeF3 fluoride crystals have been studied as unique Faraday rotators for the UV-visible region. These have a wide UV transparency, where nowadays only Faraday glasses of low performance are available. It is shown that both fluorides exhibit outstanding Verdet constants in the UV due to the closeness of the absorption edge to the Faraday transition wavelength. The performance of optical isolators based on present Faraday crystals is discussed.

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