Merriam A J, Yin G Y
Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA.
Opt Lett. 1998 Jul 1;23(13):1034-6. doi: 10.1364/ol.23.001034.
We describe the design considerations and operating characteristics of a compact, widely tunable, narrow-linewidth, megawatt-class pulsed laser system based on Ti(3+):Al(2)O(3) (Ti:sapphire) pumped by the second harmonic of a 1.06-microm Nd:YAG laser. The system delivers 10 mJ in a 5-ns near-transform-limited single-longitudinal-mode (SLM) pulse with a threshold of 20 mJ and a slope efficiency greater than 40%. By the technique of self-seeding, in which a portion of the gain medium's spontaneous fluorescence is coupled back to the laser cavity, SLM operation may be obtained across the entire gain profile of Ti:sapphire with a minimum number of optical components and without external seeding.
我们描述了一种基于由1.06微米Nd:YAG激光的二次谐波泵浦的Ti(3+):Al(2)O(3)（钛宝石）的紧凑、宽可调谐、窄线宽、兆瓦级脉冲激光系统的设计考量和运行特性。该系统在5纳秒的近变换极限单纵模（SLM）脉冲中输出10毫焦，阈值为20毫焦，斜率效率大于40%。通过自种子技术，即增益介质的一部分自发荧光被耦合回激光腔，使用最少数量的光学元件且无需外部种子注入，就可以在钛宝石的整个增益分布范围内实现单纵模运行。
