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主要对种子注入单纵模光学参量振荡器的纵模特性进行了理论和实验研究。利用数值模拟方法，对光参量振荡器中的场强方程进行了求解，得出在种子注入情况下，单纵模脉冲光参量振荡器的输出光频率主要由谐振腔纵模频率决定，而注入光频率与腔纵模频率的偏差应小于腔纵模间隔。并利用多纵模的Ｈｅ－Ｎｅ激光器作为种子光，成功地获得了单纵模参量光输出
The theoretical and experimental studies on the longitudinal mode characteristics of single-mode optical parametric oscillator for seed injection are carried out. Using the numerical simulation method, the field strength equation of the optical parametric oscillator is solved. The results show that the output optical frequency of the single longitudinal mode pulsed optical parametric oscillator is mainly determined by the longitudinal mode frequency of the resonator under the condition of seed injection, Optical frequency and longitudinal cavity mode frequency deviation should be less than cavity longitudinal mode interval. And the use of multi-longitudinal mode He-Ne laser as seed light, successfully obtained a single longitudinal mode parametric light output