（Ho，Cr）∶YAG单晶光纤生长与光谱特性分析

Growth of Ho∶YAG Single Crystal Fiber Co-doped with Cr and Its Spectrum Analyses

本文工作中用ＬＨＰＧ生长Ｈｏ∶ＹＡＧ，（Ｈｏ，Ｃｒ）∶ＹＡＧ，Ｃｒ∶ＹＡＧ等单晶光纤（ＳＣＦ）。在室温下测试了这些单晶光纤的吸收谱、荧光谱、荧光寿命等光谱参数。通过荧光寿命分析了Ｃｒ→Ｈｏ和Ｈｏ→Ｃｒ之间的能量转移过程及能量转换效率η，并通过荧光衰减曲线的计算机拟合，计算了Ｈｏ→Ｃｒ之间的微观相互作用参数Ｃ＿（ＤＡ）。

In this paper the single crystal fibers(SCF)Ho∶YAG,(Ho,Cr)∶YAG,Cr∶YAG are grown by the laser-heated pedestal growth(LHPG)mothed. The absorption spectra、fluorescence spectra and fluorescence lifetimes are measured in room temperature.The energy transfers between Cr and Ho,and their efficiency η,are analysed form the data of lifetimes. The microinteraction parameter C_(DA) are determined from fitting of data by computer.