纳米复合1.3μm光放大材料的荧光和吸收谱

纳米级掺稀土非氧化物团簇复合在氧化硅玻璃中,可以结合非氧化物玻璃和氧化物玻璃在光放大和化学、热力学、力学等方面各自的优点,提供可以应用于实用化1.3μm,宽带1.5μm和新发展的1.4μm光放大的新材料.在一种复合材料中,峰值位于1315nm的荧光峰及线型被证实与用来进行复合的掺稀土氟镓锆玻璃中的峰完全一致,而在复合材料中其荧光寿命较长.以Pr3+和Nd3+作为活性离子的复合材料的吸收谱线宽比Pr3+和Nd3+掺杂的ZBLAN的相应吸收谱线宽展宽最多达到10nm.复合材料的光谱性质有利于器件增益并放宽对泵浦光源的要求.

Fluorescence and absorption spectroscopy of 1.3 μ m light amplifying nanoscale composite materials

The composite materials with nanoscale rare- earths doped non- oxides clusters embedded in silica glass may combine the advantages of non- oxides glasses and silica glass in light amplifying, chemical, thermo- dynamical, and mechanical properties, to offer new materials for practical 1.3μ m, wide band 1.5 μ m, and newly developed 1.4 μ m applications. The fluorescence spectrum centered at 1315 nm of one of the materials is measured identical with that of the rare- earth doped gallium zirconium fluoride glass, while the lifetime is marginally longer. The absorption spectral line widths of the composite materials with Pr3+ and Nd3+ as active ions are broadened up to 10 nm than the reference line widths of Pr3+ and Nd3+ doped ZBLAN. The optical spectroscopy properties of the composite materials may benefit gain of device and relax the requirement on pumping sources.