Origin of broad NIR photoluminescence in bismuthate glass and Bi-doped glasses at room temperature

作者: Mingying Peng , Cordt Zollfrank , Lothar Wondraczek

DOI: 10.1088/0953-8984/21/28/285106

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摘要: Bi-doped glasses with broadband photoluminescence in the near-infrared (NIR) spectral range are presently receiving significant consideration for potential applications in telecommunications, widely tunable fiber lasers and spectral converters. However, the origin of NIR emission remains disputed. Here, we report on NIR absorption and emission properties of bismuthate glass and their dependence on the melting temperature. Results clarify that NIR emission occurs from the same centers as it does in Bi-doped glasses. The …

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