Abstract

Terrawatt level 100 fsec chirped pulse amplification1 (CPA) systems have previously been reported using laser pumped Ti:Sapphire2 and flashlamp pumped Cr:LiSAF3 as final amplifiers. We have recently produced 2.5 TW pulses using a compact flashlamp pumped, dye-converted Ti:Sapphire amplifier. The availability of high quality Ti:Sapphire rods for this type of amplifier allows amplification with no significant spatial beam degradation. This amplifier exhibits many of the best characteristics of both types of systems: The high repetition rate and good spatial beam fidelity of laser pumped Ti:Sapphire as well as the convenience of a flashlamp pumped system.

© 1993 Optical Society of America

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