多量子阱InGaAsP实现Nd:YAG激光器被动锁模  

Investigation on Passive Mode-Locking in an Nd:YAG Laser Using Multi-Quantum-Well InGaAsP

作　　者：苏培林[1] 王加贤[1] 王国立[1] 张峻诚[1] 

机构地区：[1]华侨大学信息科学与工程学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2009年第6期628-631,共4页Journal of Huaqiao University(Natural Science)

基　　金：福建省自然科学基金资助项目(A0610023)

摘　　要：采用InGaAsP多量子阱作为可饱和吸收体,以及Nd∶YAG激光器的耦合输出镜,实现1.06μm激光的被动锁模运转.当激光器腔长为115 cm时,在平凹腔结构中获得平均脉宽23 ps、能量7 mJ的单脉冲序列;在平凸腔结构获得平均脉宽21 ps、能量10.5 mJ的单脉冲序列.比较平凹腔和平凸腔结构的Nd∶YAG激光器的锁模效果,并根据样品结构和可饱和吸收体被动锁模理论,分析半导体多量子阱材料InGaAsP实现被动锁模的机理.The passive mode-locking operation of an Nd ： YAG laser at 1.06μm was achieved by using multi-quantumwell InP/InGaAsP as saturable absorber and output coupler. When the cavity length was 115 era, a single pulse train with average pulse duration of 23 ps and energy of 7 mJ was obtained in a plane-convexity cavity. The pulse duration was 21 ps and energy was 10. 5 mJ from a plane-eoncave cavity Nd ： YAG laser. The mode-locking effect of the plane-convexity cavity and the plane-concave cavity Nd ： YAG laser was compared in the experiment, According to the structure of the sample and the passive mode-locking theory of the saturable absorber, the passive mode-locking mechanism of semiconducting multi-quantum-well InGaAsP was anylized in this paper.

关 键 词：Nd∶YAG激光器 INGAASP 被动锁模 多量子阱 

分 类 号：TN248.13[电子电信—物理电子学]