激光二极管泵浦的Cr:LiSAF二次谐波产生获得可调谐蓝色激光连续输出  

Diode Pumped Cr∶LiSAF SHG to Obtain CW and Tunable Blue Laser Output

作　　者：孟红祥[1] 何良芳 余锦[1] 钱龙生[1] 翁志成[1] 方珍意[2] 黄朝恩[2] 

机构地区：[1]中国科学院长春光学精密机械研究所 [2]北京人工晶体研究所

出　　处：《光学学报》1999年第7期877-879,共3页Acta Optica Sinica

摘　　要：以６７９ｎｍ的激光二极管泵浦１ｍｍ厚掺杂摩尔分数为０．０２２ＣｒＬｉＳＡＦ，用ａ－切割的类非临界位相匹配的ＫＮ晶体进行内腔倍频。在吸收功率为２５６ｍＷ时，得到了峰值３．１５ｍＷ、波长为４３１．７ｎｍ的ＴＥＭ００模蓝色激光输出，激光阈值为９６ｍＷ，斜效率为１．９７％。通过改变ＫＮ晶体的温度，实现了波长范围在４２３．４～４４５．５ｎｍ之间的连续可调谐蓝色激光输出。A 0.022 mol fraction doped Cr∶LiSAF crystal with 1 mm in thickness is pumped by a 679 nm laser diode, and NCPM KN crystal is used as intracavity doubler. Maximal output of TEMoo 3.15 mW of blue laser at 431.7 nm is obtained with the absorption power of 256 mW. The laser scheme shows a threshold of 96 mW and slope efficiency of 1.97%. Continuous wave tunable output is demonstrated in the blue region of 423.4￣445.5 nm only by changing temperature of KN crystal.

关 键 词：激光二极管泵浦 内腔倍频 CR:LISAF 蓝色 激光器 

分 类 号：TN248.4[电子电信—物理电子学]