摘要
为了得到2.7μm波段可调谐激光辐射,设计了信号光单谐振荡KTP光参量振荡器(OPO),给出了KTP OPOⅡ(B)类相位匹配方式下的角度调谐曲线、有效非线性系数.KTP晶体切割角为θ=62°,ψ=0°,有效非线性系数为-2.97 pm/V.利用该KTP OPO实现了2.6～2.8μm波段范围可调谐激光输出,用脉宽为16ns的基模高斯光束1.064μm激光泵浦得到了最大能量578μJ,能量转换效率达1.7%.
The 2.6- 2.8 μm tunable laser setup based on single-resonant optical parametric oscillator（SRO） is designed and operated in order to get 2.7 μm tunable laser. The angle tuning curve and the effective nonlinear coefficient of II（B） KTP optical parametric oscillator（OPO） axe given. The cut angles of the crystal θ and φ are 62° and 0° respectively and the effective nonlinear coefficient is -2.97 pm/V. The 578 μ3 output energy is obtained with the KTP SRO pumped at 1.064 μm TEM00 mode laser, and the energy conversion efficiency is 1.7%. The output wavelength can be tuned from 2.6 to 2.8 μm.
出处
《量子电子学报》
CAS
CSCD
北大核心
2008年第2期226-229,共4页
Chinese Journal of Quantum Electronics
基金
总参重点课题
