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New materials for broadband optical amplifiers

机译：宽带光放大器的新材料

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An emission, which covers the spectral range from the O to L-band, was observed from a Ni2+-doped zinc-alumino-silicate glass at room temperature. The emission lifetime was about 440 msec at 5 K and decreased with an increase temperature to 240 msec at 300 K. The emission band was identified as the downward d-d ~3T_(2g)(~3F)→~3A_(2g)(~3F) transition of octahedral Ni~(2+) ions. It was confirmed from X-ray diffraction analyses and transmission electron microscope observations that ZnAl_2O_4 spinel nano-crystals containing octahedral Ni2+ ions acted as emission centers. It is expected that the Ni2+-doped glass has a potential for a broadband amplification medium.
机译：在室温下，从Ni2 +掺杂的锌 - 铝硅酸盐玻璃中观察到从O到L频带的光谱范围的发射。发射寿命在5 k下约440毫秒，并且在300k下将温度提高至240毫秒，鉴定为下DD〜3t_（2g）（〜3f）→〜3a_（2g）（〜3f） ）八面体Ni〜（2+）离子的过渡。从X射线衍射分析和透射电子显微镜观察结果证实了含有八面体Ni2 +离子的Znal_2O_4尖晶石纳米晶体作为排放中心。预期Ni2 +掺杂的玻璃具有宽带扩增介质的潜力。

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