非共线泵浦的KTP光参量振荡器

KTP Optical Parametric Oscillator with Noncollinear Pump

对非共线泵浦ＫＴＰ光学参量振荡器的相位匹配过程进行了理论分析和实验研究。结果表明，非共线泵浦双通单谐振光学参量振荡器能够保持其双程增益的优点。使用非共线泵浦的ＫＴＰ光学参量振荡器，在非共线角度超过１°时，仍实现了３１％的１．０６μｍ泵浦光向１．５７μｍ人眼安全激光的能量转换效率。

The phasematching condition in noncollinear pump OPO is analyzed. It indicates that round trip phasematching can be achieved if the OPO is in noncritical phasematching at collinear case. Using a KTP OPO, we got 31% of 1.06 μm pump be converted into 1.57 μm eye safe output at a noncollinearity of 1 degree.