基于电光调Q 1064nm/532nm/570nm三波长固体激光器  

1064nm/532nm/570nm three-wavelength solid-state lasers based on electro-optic Q-switches

作　　者：吴叶 郑陈琪[2] 陈瑞涛[2] 顾华东[2] 杨杰[2] WU Ye;ZHENG Chenqi;CHEN Ruitao;GU Huadong;YANG Jie(University of Science and Technology of China,Hefei 230026,China;Jiangsu Key Laboratory of Medical Optics,Suzhou Institute of Biomedical Engineering and Technology,Chinese Academy of Sciences,Suzhou 215163,China)

机构地区：[1]中国科学技术大学,合肥230026 [2]中国科学院苏州生物医学工程技术研究所江苏省医用光学重点实验室,苏州215163

出　　处：《激光技术》2019年第5期681-685,共5页Laser Technology

基　　金：中国科学院苏州生物医学工程技术研究所医工结合计划专项资助项目(Y852051205; Y852041205)

摘　　要：为了提升激光技术在色素性疾病治疗等生物医学应用效果,研制了一种1064nm,532nm,570nm三波长激光器。采用电光调Q Nd∶YAG激光器获得最窄脉宽为11ns的1064nm脉冲激光输出,使用磷酸氧钛钾(KTP)非线性晶体对基频光腔外倍频获得532nm激光输出;以固体染料块为激光增益介质,倍频光为抽运光,可获得中心波长为570nm的黄光输出,光光转换效率为61.3%。结果表明,通过改变氙灯注入电压,可以调节1064nm激光脉冲输出特性;增加固体染料激光器腔长,可以调节染料激光输出光谱特性。该研究结果对激光器灵活应用具有重要意义。In order to improve the effect of laser technology in the treatment of pigmentary diseases and other biomedical application, 1064nm/ 532nm/ 570nm three-wavelength lasers were developed. Electro-optic Q -switched Nd∶ YAG laser was used to obtain 1064nm pulse laser with narrow pulse width of 11ns. Output of 532nm laser was obtained by using KTP non-linear crystal for optical extra-cavity frequency doubling. With solid dye block as laser gain medium and frequency doubling light as pump light, yellow light output with a central wavelength of 570nm was obtained, and the light-to-light conversion efficiency was 61.3%. The results show that, by changing the injection voltage of xenon lamp, output characteristics of 1064nm laser pulse can be adjusted. By increasing the cavity length of the solid dye laser, output spectral characteristics of the dye laser can be adjusted. The research results are of great significance to the flexible application of lasers.

关 键 词：激光技术 固体染料激光 电光调Q 脉宽 

分 类 号：TN248.1[电子电信—物理电子学]