| Emission enhancement in Er^3＋/Pr^3＋-codoped germanate glasses and their use as a 2.7-μm laser material |
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| 作者姓名： | 李响潭 刘雪强 张丽艳 胡丽丽 张军杰 |
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| 作者单位： | [1]Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China [2]Graduate University of Chinese Academy of Science, Beijing 100049, China |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China （Nos. 51172252 and 61177083）. |
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| 摘 要： | ![]()
Emission enhancement at 2.7 μm is observed in Er^3＋/Pr^3＋--codoped germanate glasses when pumped by a 980-nm laser diode. Significant reductions in 1.5-μm emission and upeonversion intensity indicate efficient energy transfer between Er^3＋ and Pr^3＋; the energy transfer efficiency is as high as 77.4%. The mechanisms of energy transfer are discussed in detail. The calculated emission cross-section of Er^3＋/Pr^3＋- codoped germanate glass is 8.44× 10 ^-21 cm^2, which suggests that Er^3＋/Pr^3＋-codoped germanate glass can be used to achieve efficient 2.7-μm emission.
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| 关 键 词： | 激光二极管泵浦 锗酸盐玻璃 共掺 材料使用 发光 能量传递效率 发射截面 能量转移 |
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