二极管激光侧面泵浦腔内倍频Nd：YAG板条激光器研究  

Intracavity Doubling of a Diode Side-Pumped Nd:YAG Laser

作　　者：胡文涛[1] 周复正[1] 李传东[1] 鄢雨[1] 李植森[1] 沈丽青[1] 姜中宏[1] 

机构地区：[1]中国科学院上海光学精密机械研究所

出　　处：《光学学报》1995年第7期845-850,共6页Acta Optica Sinica

基　　金：院军工重点课题资助

摘　　要：用准连续６０Ｗ的二极管激光列阵侧面泵浦“之”字形Ｎｄ：ＹＡＧ板条激光器，当泵浦功率为４５Ｗ，脉宽为４００μｓ时，得到３．５ｍＪ的激光输出。用ＫＤ＊Ｐ电光开关调Ｑ，得到１８ｎｓ（ＦＷＨＭ）、２ｍＪ的脉冲激光输出，用ＫＴＰ晶体作腔内倍频，得到１５ｎｓ、０．８５ｍＪ的二次谐波激光输出。在腔内无调Ｑ元件且腔长小于５ｃｍ时，于近阈值处得到单频绿光输出，而当泵浦功率稍大，腔内有数个纵模振荡时，观察到激光的反相态，并用数值模拟的结果对此作了解释。A Nd: YAG laser was side pumped with laSer-diode-array of 45 W Q-cw(400 μs) output. This laser provides 3. 5 mJ output at 1064 um for free runing oscillation,and 0. 85 mJ at 532 urn for Q-switched operation with pulse. width of 15 us. Removing the Q-switch away, and shortening the cavity optical length to less than 5 cm, a single longitudinal mode of 532 um laser was observed near threshold. Increasing the pumpPower somewhat, we have observed the antiphase laser output.

关 键 词：二极管 激光泵浦 腔内倍频 调Q 钕 激光器 

分 类 号：TN248.34[电子电信—物理电子学]