Recent interest in materials studies utilizing millisecond-regime laser pulses has led to development of such a laser system at KMS Fusion, We describe the configuration and performance of an Nd doped master oscillator/power amplifier system that incorporates electronic feedback control, This system delivers up to 40 J in a stable well-controlled square-wave envelope of mode-locked pulses that is 3 ms long with pulse to pulse spacing of 8 ns.

© 1989 Optical Society of America

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