A new arm of LLNL’s Optical Sciences Laser with twelve 20.8-cm aperture Nd:glass amplifier disks in double-pass configuration produces 1.5-kJ output with 10-J input. Net doublepass small-signal gain in disks is 900 at maximum pump energy. Active medium is 4-wt.% Nddoped Schott LG-770 laser glass.

© 2003 Optical Society of America

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