Institute of Automation and Electrometry, Siberian Branch of RAS, Novosibirsk, Russia.
Opt Lett. 2012 Feb 1;37(3):338-40. doi: 10.1364/OL.37.000338.
We propose a new method for achieving simultaneous operation of laser mode locking and the Q-switch technique using only a single acousto-optic modulator (AOM) with a traveling wave; this AOM was placed inside the cavity of a green-emission Nd:YAG laser. The further shortening of the lasing pulse duration from 40 ps to less than 3.25 ps was obtained by the formation of a Kerr lens in a doubling-frequency crystal. At average output power of 1.5 W and pulse repetition rate of the Q-switch equal to 2 kHz, the peak power in a steady-operating laser exceeded 50 MW.
我们提出了一种新的方法，仅使用单个声光调制器（AOM）和行波来实现激光锁模和 Q 开关技术的同时操作；该 AOM 被放置在绿光发射 Nd:YAG 激光腔内。通过在倍频晶体中形成克尔透镜，将激光脉冲持续时间从 40 ps 进一步缩短到小于 3.25 ps。在平均输出功率为 1.5 W 和 Q 开关脉冲重复率为 2 kHz 的情况下，稳态激光的峰值功率超过 50 MW。
