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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 >Tm-doped aluminate glass fibers for S-band optical amplification
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Tm-doped aluminate glass fibers for S-band optical amplification

机译：掺有Tm的铝酸盐玻璃纤维，用于S波段光放大

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摘要

Thulium-doped fiber amplifiers (TDFAs) have been proposed as practical devices for the amplification of light signals in the so-called S-band (1460-1530 nm) of the transparency window of standard telecommunications fiber. As the quantum efficiency of the desired H-3(4) -> F-3(4) luminescence of Tm3+ is adversely affected by non-radiative decay when high maximum phonon energy (MPE) host glasses are used, a practical TDFA requires an active fiber made from a glass with intermediate to low MPE. We have explored the possibility of using aluminate fibers for this application, as bulk samples of Tm-doped alkaline earth aluminate glass are characterized by a MPE of 780 cm(-1) and a quantum efficiency for the 1460 nm fluorescence of similar to 35%. Despite the high devitrification tendency of aluminate glass, pure aluminate core fibers with minimum losses of similar to 0.5 dB/m have been successfully fabricated by the rod-in-tube technique using viscosity- and expansion-matched alkaline earth aluminosilicate cladding glasses. (c) 2006 Elsevier B.V. All rights reserved.
机译：已经提出掺fiber光纤放大器（TDFA）作为用于在标准电信光纤的透明窗的所谓的S波段（1460-1530nm）中放大光信号的实用设备。当使用高最大声子能（MPE）主体玻璃时，由于所需的H-3（4）→F-3（4）的量子效率受到非辐射衰变的不利影响，因此实际的TDFA需要由中等至低MPE的玻璃制成的活性纤维。我们已经探索了将铝酸盐纤维用于此应用的可能性，因为掺入Tm的碱土金属铝酸盐玻璃的大量样品的特征是MPE为780 cm（-1），并且1460 nm荧光的量子效率接近35％ 。尽管铝酸盐玻璃有很高的失透趋势，但是通过管内棒技术使用粘度匹配和膨胀匹配的碱土金属铝硅酸盐覆层玻璃，已经成功地制造了最小损耗接近0.5 dB / m的纯铝酸盐芯纤维。 （c）2006 Elsevier B.V.保留所有权利。

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