2.6-Watt Average-Power Mode-Locked Ceramic Nd:YAG Laser

摘要

We report a 1.2 at. % Nd:YAG ceramic pumped with an 808-nm laser diode, placed in a 1.92-m cavity, and passively mode-locked at 1064-nm with a 1% modulation depth SESAM. At a pump power of 11.1 W, this laser produced 2.6 W of average power with a slope efficiency of 27%. The pulse length was 26 ps at a repetition rate of 78 MHz. The ceramic exhibited no peak power degradation during a 20-hour test of doubling efficiency with periodically-poled, near-stoichiometric lithium tantalate.