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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Influence of Ce codoping and H_2 pre-loading on Er/Yb-doped fiber: Radiation response characterized by Confocal Micro-Luminescence
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Influence of Ce codoping and H_2 pre-loading on Er/Yb-doped fiber: Radiation response characterized by Confocal Micro-Luminescence

机译：Ce共掺杂和H_2预加载对掺Er / Yb的光纤的影响：共聚焦微发光表征的辐射响应

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摘要

Confocal microscopy luminescence measurements were applied to study the X-ray radiation response of Er/Yb-doped optical fibers in connection with H 2 pre-loading and with the addition of another lanthanide element (Cerium) in the core composition. Laser excitations at 488 nm and 325 nm allow deriving the emission and absorption pattern of Er~(3+), the latter derived from the dips appearing in a wide luminescence band related to defects in silica. We found that the luminescence spectrum of the X-irradiated Er/Yb-doped core fiber evidences an increase in the emission intensity around 520 and 660 nm; in contrast, no changes are induced by radiation neither after H_2 pre-loading nor when the Cerium is added to the core composition. Both treatments reduce the generation of defects in the Er-doped fibers thus providing hardness in the radiative environment.
机译：共聚焦显微镜的发光测量被用来研究掺H 2的预掺杂和在芯组合物中添加另一种镧系元素（铈）的掺Er / Yb的光纤的X射线辐射响应。在488 nm和325 nm处的激光激发允许推导Er〜（3+）的发射和吸收模式，后者是由与二氧化硅缺陷相关的宽发光带中出现的倾角引起的。我们发现，X射线辐照的掺Er / Yb的芯纤维的发光光谱表明发射强度在520和660 nm附近增加。相反，既没有在H_2预加载后，也没有在铈组合物中添加铈时，辐射不会引起变化。两种处理都减少了掺Er光纤中缺陷的产生，从而在辐射环境中提供了硬度。

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