Fe对掺钕磷酸盐激光玻璃激光性能的影响

Influence of Fe on laser performance in Nd^(3+) phosphate glasses

在理论分析的基础上,具体讨论了Fe质量分数小于10-4对1 053 nm处光吸收损耗和Nd3+无辐射跃迁几率的影响规律,发现Fe在1 053 nm处的光吸收损耗和Nd3+无辐射跃迁能量转移都与Fe质量分数成平方关系增长,Fe对1 053 nm光吸收的影响较大而Fe与Nd3+之间的能量转移不足50 Hz。这对生产过程中Fe含量的控制有重要指导意义。

Based on theoretic analysis on experimental data, the changes of the optical absorption and Nd^3＋ non-radiative transition probability caused by Fe concentration in N31 glass are discussed in detail. The optical loss at 1053 nm and Nd^3＋ nonradiative energy losses increase quadratically with Fe concentration below 10^-4. It is found that the optical absorption loss at 1053 nm increases rapidly with increasing Fe concentration. However, Nd^3＋ non-radiative energy losses are less than 50 Hz. It is an important way to improve the laser performance by decreasing Fe concentration in melting process.