We present an efficient, ultrafast regenerate amplifier that increases the energy of a laser pulse from 300 pJ to 6 mJ and produces average powers of as much as 9 W in a TEM<sub>00</sub> spatial mode. As an ultrafast amplifier, the system produces 4-mJ pulses with 0.09 TW of peak power.
© 2001 Optical Society of America
Joe Z. H. Yang and Barry C. Walker, "0.09-terawatt pulses with a 31% efficient, kilohertz repetition-rate Ti:sapphire regenerative amplifier," Opt. Lett. 26, 453-455 (2001)