CAJ | 학술논문

本文报道了一种全固态腔内和频608.1 nm 激光器。在激光谐振腔两个分臂中，两支激光二极管分别泵浦Nd∶YVO4和Nd∶YAG晶体，分别选择1342 nm波长（ Nd∶YVO4晶体的4 F3／2-4 I13／2谱线）与1112 nm波长（ Nd∶YAG晶体的4 F3／2-4 I11／2谱线）振荡并进行腔内和频。通过优化谐振腔设计，腔内两个波长获得了较好的模式匹配。在两个分臂的交叠部分，利用LBO I类相位匹配进行和频，获得和频608.1 nm激光输出。实验表明，当Nd∶YVO4与Nd∶YAG晶体泵浦功率分别为600和740 mW时，获得了功率为23.8 mW、波长为608.1 nm激光输出，激光输出稳定、噪声低。利用本文提出的和频结构是获得608.1 nm激光输出较为有效的方法。
본문보도료일충전고태강내화빈608.1 nm 격광기。재격광해진강량개분비중，량지격광이겁관분별빙포Nd∶YVO4화Nd∶YAG정체，분별선택1342 nm파장（ Nd∶YVO4정체적4 F3／2-4 I13／2보선）여1112 nm파장（ Nd∶YAG정체적4 F3／2-4 I11／2보선）진탕병진행강내화빈。통과우화해진강설계，강내량개파장획득료교호적모식필배。재량개분비적교첩부분，이용LBO I류상위필배진행화빈，획득화빈608.1 nm격광수출。실험표명，당Nd∶YVO4여Nd∶YAG정체빙포공솔분별위600화740 mW시，획득료공솔위23.8 mW、파장위608.1 nm격광수출，격광수출은정、조성저。이용본문제출적화빈결구시획득608.1 nm격광수출교위유효적방법。
A compact all-solid-state intracavity sum-frequency mixing laser at 608.1 nm is reported.A Nd∶YAG crystal and a Nd∶YVO4 crystal are pumped by two laser diodes respectively in two sub-arms of the laser cavity.In the two arms, laser wavelengths of 1 342 nm from Nd∶YVO4 crystal(corresponding to the 4F3/2-4I13/2 transition) and 1 112 nm from Nd∶YAG crystal( corresponding to the 4 F3/2-4 I11/2 transition) are selected to be mixed into 608.1 nm laser.Through optimization of the cavity design, better matching of the modes for the two wavelengths is obtained.In the overlapping of the two arms, sum-frequency mixing is generated with a type I phase-matching LBO crystal.The experiment result shows that a stable and low noisy output of 23.8 mW at 608.1 nm is obtained at the incident pump power of 740 mW for the Nd∶YAG crystal and 600 mW for the Nd∶YVO4 crystal.It is an efficient way to obtain 608.1 nm laser with the sum-frequency mixing structure pro-posed in this article.