论文部分内容阅读
报道了一种单LD泵浦Nd:YVO4双晶体腔内和频实现黄光激光的有效方法,并对其进行了理论分析、实验装置的设计和实验验证。该装置由半导体激光器、光学耦合系统(CO)、Nd:YVO4镀膜晶体、镀高反膜的平凹镜、镀增透膜的LBO、镀高透膜的全反镜组成。实验采用V型谐振腔,在中心波长为808.7 nm、5 W抽运功率下,利用Ⅰ类临界相位匹配LBO作为和频晶体,获得了244 mW、593 nm的黄光输出,光-光转换率为4.9%,激光不稳定度为5%。实验结果表明:采用V型谐振腔进行腔内和频,可以获得593 nm的黄光激光,并且结构紧凑、转换效率高,可以应用到很多种和频激光器中。
An effective method to realize the yellow laser with a single LD pumped Nd: YVO4 double crystal cavity is reported. The theoretical analysis, experimental device design and experimental verification are carried out. The device is composed of a semiconductor laser, an optical coupling system (CO), a Nd: YVO4 coated crystal, a plano-concave mirror with a high anti-reflection film, an LBO with an anti-reflection coating, V-type resonant cavity was used in this experiment. With the center wavelength of 808.7 nm and the pumping power of 5 W, class Ⅰ critical phase matching LBO was used as the sum frequency crystal, and the output of yellow light with a wavelength of 244 mW and 593 nm was obtained. The optical- 4.9%, laser instability 5%. The experimental results show that the use of V-type cavity for the cavity and the frequency can be obtained 593 nm yellow laser, and compact structure, high conversion efficiency, can be applied to many kinds of and frequency lasers.