也谈内腔倍频激光器中非线性晶体长度的选择  

Also on the Choice of the Nonlinear Crystal Length in an Intracavity Doubled Laser

作　　者：余锦[1] 

机构地区：[1]中国科学院长春光学精密机械研究所,长春130022

出　　处：《贵州大学学报（自然科学版）》1999年第3期168-172,共5页Journal of Guizhou University:Natural Sciences

摘　　要：本文从非线性光学二次谐波理论出发 ,考察了基频光两次通过倍频晶体的情况 ,推导出连续运转内腔倍频激光器的倍频效率公式 .经过分析可以看出 ,在小信号近似下 ,对优化运转的内腔倍频激光器 ,随着泵浦功率的增大 ,输出倍频光功率也增加 。In this paper,we study the second-harmonic generation inside the laser resonator.Considering the double pass of the basic frequency laser through the nonlinear crystal,we obtain the expression for the power conversion efficiency in a continuous intracavity doubled laser scheme. Under the case of small signal approximation,we may notice that for an optimized operation,the doubled output power increases with the increasing pump power,while the optimum doubling crystal length takes an opposite trend.

关 键 词：二次谐波 内空倍频激光器 非线性晶体 长度 

分 类 号：TN248[电子电信—物理电子学]