全固态和频593.5nm黄光激光器激光反射镜的研制  

Manufacture of Laser Mirrors for All-solid-state Sum Frequency Mixing 593.5 nm Yellow Lasers

作　　者：卜轶坤[1] 郑权[1] 薛庆华[1] 套格套[1] 陈颖新[1] 钱龙生[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所

出　　处：《光电子．激光》2005年第5期545-549,共5页Journal of Optoelectronics·Laser

基　　金：国家高技术研究发展计划资助项目(2002AA311141)

摘　　要：从双波长激光运转及和频的机理出发,研制了LD泵浦Nd:YVO4 晶体、LBO腔内和频593.5 nm连续黄光激光器激光反射镜的光学薄膜。为了达到最佳的和频输出,对膜系要求进行了分析,采用对谐振腔一端面反射率固定不变,对另一腔镜基频光透过率进行调谐的方法,给出合理初始结构后,利用计算机对膜厚进行优化,采用离子束溅射和离子束辅助沉积的方法,通过时间监控膜厚成功地制备出全介质激光反射膜。在室温下,实现1 064 nm和1 342 nm双波长连续运转,并通过Ⅰ类临界相位匹配LBO晶体腔内和频实现593.5 nm黄色激光连续输出。当泵浦注入功率为1.8 W时,和频黄激光最大输出达85 mW,光光转换效率为4.7%,功率稳定性24 h内优于±2.8%。A series of optical thin films for LD pumped Nd:YVO4 crystal, LBO intracavity sum-frequency-mixing 593.5 nm yellow laser are designed and manufactured based on dual-wavelength action and sum-frequency-mixing theory. To obtain optimum output power, the coating design of laser mirror is analyzed. One resonator facet transparence for fundament laser light is adjusted by fixing the other resonator facet reflectivity is used. Using computer thin film optimization method based on the initiative structure, the dielectric high reflective laser mirror for yellow laser is achieved with double ion beam sputter technique, which is controlled by a time-power monitoring method. An optimized CW 593.5 nm yellow laser at room temperature is obtained for the first time. The maximum laser output power of 85 mW is achieved when the incident pump laser of 1.8 W is used. The optical-to-optical conversion is up to 4.7%, the power instability in 24 h is better than ±2.8%.

关 键 词：激光反射镜 激光器 和频 研制 黄光 全固态 ND:YVO4晶体 离子束辅助沉积 临界相位匹配 端面反射率 离子束溅射 激光反射膜 LBO晶体 光转换效率 功率稳定性 激光运转 LD泵浦 光学薄膜 光透过率 初始结构 时间监控 连续运转 

分 类 号：TN248[电子电信—物理电子学] TN248.1