Abstract
Pulse-train amplification has been demonstrated to be an energy efficient means of increasing the peak output intensity from a discharge pumped KrF excimer amplifier.1 Recently, pulse-train amplification has attracted the interest of the inertial confinement fusion community1 2 because this technique has the potential to reduce the number of angular-multiplexed beam lines in their proposed systems. Since the gain is not continuously loaded during pulse-train amplification, amplified spontaneous emission (ASE) may limit the performance of high power amplifiers. We investigated the dynamics of gain recovery and ASE in a strongly pumped KrF amplifier.
© 1989 Optical Society of America
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