摘要
采用电光调Q脉冲Nd∶YAG固体激光器的532 nm绿光作为抽运光源(10~13 ns,0~20 mJ),以Ⅱ类相位匹配(θ=57.5°,Ф=0°)、尺寸为4 mm×4 mm×12 mm的三硼酸鉍晶体(BiB3O6)与一对1215 nm单谐振波长的平镜组成腔长为40 mm的谐振腔,构建了光参变振荡器的整个实验系统。系统将入射抽运光振荡产生1215 nm的信号光及946 nm的闲频光,结果显示,抽运阈值为9 mJ,最高耦合输出为2.57 mJ,抽运脉冲能量与信号脉冲能量的最高转换效率为14.59%。
A nanosecond optical parametric oscillator (OPO) pumped by an electro-optic Q-switched Nd: YAG laser with 532 nm green light (10-13 ns, 0-20 mJ) was constructed. The resonant cavity of 40 mm long was made from aBiB3O6 crystal of size 4 mm×4 min×12 mm with type-Ⅱ phase matching(θ= 57.5°, Ф= 0°), and a pair of plane mirrors with singly-resonant wavelength 1215 nm. The OPO system converted the incident pump beam into the signal laser of 1215 nm and the idler laser of 946 nm. The pump threshold of 9 mJ and the highest coupling output of 2.57 mJ for the highest conversion efficiency of 14.59 % were achieved.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2008年第10期1998-2001,共4页
Acta Optica Sinica
基金
国家自然科学基金(10304009
10774081)
山东省优秀中青年科学家科研奖励基金(2005BS04004)资助课题
关键词
光学器件
光参变振荡器
BIB3O6晶体
转换效率
optical device
optical parametric oscillator
BiB3O6 crystal
conversion efficiency