和传统的氧化物玻璃相比,氟化物玻璃具有声子能量低的特点,因此无辐射跃迁几率小,上转换量子效率高,使得掺稀土离子的氟化物玻璃具有高的发光效率.且稀土离子的能级在氟化物玻璃中具有较长的寿命,形成更多的介稳能级,有丰富的激光跃迁.利用稀土离子在氟化物光纤中的上转换特性,可以获得性能优良的光纤激光器.本文简述了掺稀土氟化物玻璃上转换激光材料的发光机理和研究进展.
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