单纵模激光的再生放大  

Regenerative Amplification of a Single-longitudinal-mode Laser Pulse

作　　者：沈小华[1] 陈绍和[1] 葛夏平[1] 马忠林[1] 邓锡铭[1] 

机构地区：[1]中国科学院上海光机所高功率激光物理联合实验室

出　　处：《中国激光》1995年第11期817-822,共6页Chinese Journal of Lasers

基　　金：国家高技术863基金

摘　　要：调Ｑ激光器的输出单纵模脉冲经衰减和削波后，被注入到一Ｎｄ∶ＹＬＦ调Ｑ副腔里，注入脉冲能量１．２ｎＪ，放大以后的脉冲能量１．５ｍＪ，增益达１０６；脉宽由６ｎｓ压缩到４．５ｎｓ。实验和理论分析均表明，当注入信号脉宽短于放大器腔来回一周的时间时，副腔对单纵模激光的放大是一种再生放大行为，单纵模激光的再生放大消除了注入锁定中苛刻的腔长匹配要求。A single longitudinal mode(SLM) pulse from a Q-switched laser, after being attenuated and slied, was injected into a Nd:YLF Q- switched slave Cavity. Its energy was amplified to 1. 5 mJ from 1. 2 nJ and its pulse width was compressed to 4. 5 us from 6 ns after amplification. A gain of 106 of the amplifier is reached. It was tested and verified by our experiments and theoretic analyses that the match of cavity lengths between a master cavity and a slave cavity was unnecessary if the pulse width of an injecting seed is shorter than a round trip time of the slave cavity. The course should be called regenerative amplification of SLM laser, not injected-locking.

关 键 词：单纵模激光 再生放大 调Q激光器 

分 类 号：TN248.34[电子电信—物理电子学]