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全固态腔内SHG/SFG多波长黄光激光器

All-Solid-State Multi-Wavelength Yellow Laser Intra-Cavity SHG/SFG

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摘要

报道了一种利用大功率激光二极管端面抽运Nd:YAG激光晶体产生基频光,并通过非线性晶体的腔内倍频(SHG)与和频(SFG),实现多个二次谐波同时连续输出的多波长黄光激光器。将Nd:YAG晶体的1112.1、1115.9、1122.7 nm谱线作为基频光,利用LBO和BIBO进行非线性光学频率变换,同时获得了三个倍频光及三个和频光激光输出。从理论上对基频光同时受激跃迁和非线性频率变换相位匹配进行了分析。实验结果与理论分析表明,当基频光的性能相对接近时,合理地选择性能较好的非线性晶体对基频光同时进行倍频和和频是获得全固态多波长激光器的一种实用方法,合理地设计激光器谐振腔能够提高激光器的稳定性。

Abstract

With the use of fundamental wave of high power laser diode end-pumped Nd:YAG and the intra-cavity second-harmonic generation (SHG) effect and sum-frequency generation (SFG) effect of nonlinear optical crystal, a multi-wavelength yellow laser with simultaneous multi-second-harmonic outputs is proposed. By using 1112.1, 1115.9, 1122.7 nm outputs of Nd:YAG as fundamental waves, and selecting LBO and BIBO for nonlinear frequency conversion, three SHG lights and three SFG lights are obtained at the same time. The simultaneous stimulated transition of fundamental frequency lights and the phase matching nonlinear frequency conversion are analyzed theoretically. Experimental results and theoretical analysis show that when fundamental waves′ performances are relatively close to each other, reasonably choosing nonlinear crystals with good performance for frequency doubling and sum frequency of wavelengths at the same time is a practical method to realize all-solid-state multi-wavelength laser. Reasonably designing laser resonator can improve the stability of the laser.

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中图分类号:TN248.1

DOI:10.3788/aos201434.0214001

所属栏目:激光器与激光光学

基金项目:苏州市应用基础研究计划(SYG201208)、苏州市技术专项(ZXG201133)

收稿日期:2013-09-05

修改稿日期:2013-09-17

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作者单位    点击查看

李智: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, 江苏 苏州 215163中国科学院大学, 北京 100049
檀慧明: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, 江苏 苏州 215163
田玉冰: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, 江苏 苏州 215163
王帆: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, 江苏 苏州 215163

联系人作者:李智(zlioptic@163.com)

备注:李智(1988—),男,硕士研究生,主要从事医用全固态多波长激光技术方面的研究。

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引用该论文

Li Zhi,Tan Huiming,Tian Yubing,Wang Fan. All-Solid-State Multi-Wavelength Yellow Laser Intra-Cavity SHG/SFG[J]. Acta Optica Sinica, 2014, 34(2): 0214001

李智,檀慧明,田玉冰,王帆. 全固态腔内SHG/SFG多波长黄光激光器[J]. 光学学报, 2014, 34(2): 0214001

被引情况

【1】任坤,刘亚丽,任晓斌,范景洋. 利用光强分布设计多波长频率转换器件. 光学学报, 2016, 36(5): 519002--1

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