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首页> 外文会议>Fiber lasers XI: technology, systems, and applications >The Yb-doped aluminosilicate fibers photodarkening mechanism based on the charge-transfer state excitation
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The Yb-doped aluminosilicate fibers photodarkening mechanism based on the charge-transfer state excitation

机译：基于电荷转移态激发的掺Yb铝硅酸盐纤维光暗化机理

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摘要

We have studied the photodarkening effect in fiber preforms with an ytterbium-doped aluminosilicate glass core. The room-temperature stable Yb~(2+) ions formation in the glass matrix under both UV- and NIR-pumping irradiation was revealed by the method of absorption spectra analysis and the fluorescence spectroscopy technique. Comparative studies of preforms and crystals samples luminescence spectra, obtained under UV-excitation, were performed. A general mechanism of Yb~(2+) ions and aluminium oxygen-hole centers (Al-OHC) formation as a result of photoinduced process of Yb~(3+) ions excitation to "charge-transfer state" (CTS) was found for both Yb:YAG crystal and aluminosilicate glass.
机译：我们已经研究了掺with铝硅酸盐玻璃芯的纤维预制件的光暗化效应。通过吸收光谱分析和荧光光谱技术揭示了在紫外和近红外泵浦照射下玻璃基质中室温稳定的Yb〜（2+）离子的形成。进行了对预成型坯和晶体样品在UV激发下的发光光谱的比较研究。发现了由Yb〜（3+）离子激发到“电荷转移态”（CTS）的光诱导过程而形成的Yb〜（2+）离子和铝氧孔中心（Al-OHC）的一般机理。适用于Yb：YAG晶体和铝硅酸盐玻璃。

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  • 来源
  • 会议地点 San Francisco CA(US)
  • 作者

    Rybaltovsky A.A.; Bobkov K.K.; Velmiskin V.V.; Umnikov A.A.; Shestakova I.A.; Guryanov A.N.; Likhachev M.E.; Bubnov M.M.; Dianov E.M.;

  • 作者单位

    Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, 119333 Moscow, Russia;

    Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, 119333 Moscow, Russia;

    Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, 119333 Moscow, Russia;

    Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, ul. Tropinina 49, 603950 Moscow, Russia;

    Open Joint Stock Company 'Polyus research institute of M.F.Stelmakh', ul. Vvedenskogo 3 bld. 1, 117342 Moscow, Russia;

    Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, ul. Tropinina 49, 603950 Moscow, Russia;

    Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, 119333 Moscow, Russia;

    Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, 119333 Moscow, Russia;

    Fiber Optics Research Center, Russian Academy of Sciences, ul. Vavilova 38, 119333 Moscow, Russia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    photodarkening; divalent ytterbium; active optical fiber; fiber laser; charge-transfer; oxygen-hole center;

    机译：光暗化二价有源光纤光纤激光器电荷转移氧孔中心;

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