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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 >Energy transfer and 1.48 mu m emission properties in chalcohalide glasses doped with Tm3+ and Tb3+
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Energy transfer and 1.48 mu m emission properties in chalcohalide glasses doped with Tm3+ and Tb3+

机译：掺有Tm3 +和Tb3 +的卤化glasses玻璃的能量转移和1.48μm发射特性

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摘要

Emission characteristics and energy transfer in chalcohalide glasses doped with Tm3+ and Tb3+ were investigated and their potential as S-band fiber-optic amplifiers was evaluated. Upon the addition of CsBr into sulfide glass, intensity of the 1.48 mum emission (H-3(4) --> F-3(4) transition) from Tm3+ increased. At the same time, the lifetime of the H-3(4) level increased to 1.2 ms, approximately eight times longer than the value obtained from sulfide glass. Quantum efficiency of the transition also increased to approximately 90%. Cross relaxation between the H-3(4) and F-3(4) levels was significant when Tm3+ ion concentration exceeded 0.2 mol%. Population density of the F-3(4) level in Tm3+ decreased upon the addition of Tb3+ due to the TM3+:F-3(4) --> Tb3+:F-7(0.1.2) energy transfer. Population inversion became possible when Tb3+ concentration reached 0.11 mol%. (C) 2003 Elsevier B.V. All rights reserved. [References: 14]
机译：研究了掺有Tm3 +和Tb3 +的卤化卤化物玻璃的发射特性和能量转移，并评估了它们作为S波段光纤放大器的潜力。在硫化玻璃中添加CsBr后，从Tm3 +发出的1.48微米发射强度（H-3（4）-> F-3（4）跃迁）增加。同时，H-3（4）级别的寿命增加到1.2 ms，大约是从硫化玻璃获得的值的八倍。跃迁的量子效率也提高到大约90％。当Tm3 +离子浓度超过0.2 mol％时，H-3（4）和F-3（4）之间的交叉弛豫非常明显。加入Tb3 +后，由于TM3 +：F-3（4）-> Tb3 +：F-7（0.1.2）的能量转移，Tm3 +中F-3（4）的种群密度降低。当Tb3 +浓度达到0.11 mol％时，种群反转成为可能。 （C）2003 Elsevier B.V.保留所有权利。 [参考：14]

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