用自滤波及注入锁定提高铜蒸气激光在BBO晶体中的倍频效率  

Improved efficiency of second harmonic generation in BBO using copper vapor laser with self-filtering and injection-locking

作　　者：任虹[1] 梁培辉[1] 沈琪敏[1] 叶韧[1] 

机构地区：[1]中国科学院上海光机所,上海201800

出　　处：《中国激光》1993年第11期805-809,共5页Chinese Journal of Lasers

摘　　要：本文采用自滤波非稳腔振荡和注入锁定放大的铜蒸气激光系统,获得了发散角为0.22mrad,偏振度为93％,510.6nm线输出功率为9.2W的激光束。将这一光束聚焦到长9mm的BBO晶体中,获得了1.2W的倍频光,其转换效率为13％,当移去滤波小孔后,所产生的倍频效率下降到8％。Adopting a copper vapor laser system consisting of a self-filtering unstable resonator and an inject ion-locked amplifier, the output power of 9. 2 W on 510. 6 nm line with polarization degree of 93% and about six times as large as diffraction- limited divergency was obtained. Focusing the laser beam into a 9 mm long BBO crystal, the second harmonic of 1. 2 W was generated with conversion efficiency of 13%. When the filtering aperture was removed, the conversion efficiency fell down to 8 %.

关 键 词：铜蒸气激光器 注入锁定 BBO晶体 

分 类 号：TN248.21[电子电信—物理电子学]