We demonstrate a simple and practical single-stage ultrafast laser amplifier system that operates at a repetition frequency from 1 to 10 kHz, with millijoule pulse energy and as much as 13 W of average power. The repetition rate can be adjusted continuously from 1 to 10 kHz by new all-solid-state pump laser technology. This is to our knowledge the highest average power ever obtained from a single-stage ultrafast laser amplifier system. This laser will significantly increase the average power and the repetition rate that is easily accessible for high-field experiments such as coherent x-ray generation or for laser-synchrotron studies.
© 2001 Optical Society of America
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3590) Lasers and laser optics : Lasers, titanium
(140.6810) Lasers and laser optics : Thermal effects
(140.7090) Lasers and laser optics : Ultrafast lasers
Sterling Backus, Randy Bartels, Sarah Thompson, Robert Dollinger, Henry C. Kapteyn, and Margaret M. Murnane, "High-efficiency, single-stage 7-kHz high-average-power ultrafast laser system," Opt. Lett. 26, 465-467 (2001)