Abstract

The possibility of energy scaling of ultrashort-pulse amplifiers employing both chirped-pulse amplification (CPA) and passively combined divided-pulse amplification (DPA) are analyzed both experimentally and numerically. It turns out that the achievable system efficiency is limited by mainly three effects: saturation in the amplifier, differences in the accumulated nonlinear phase and depolarization effects.

© 2013 Optical Society of America

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