<title>Powerful subnansecond hybrid master oscillator-power amplifier Nd:YAG laser system</title>

Abstract

A robust technique for achievement 1 GW output power at 1064 nm by amplifying the radiation of diode pumped YAG:NdIYAG:Cr4 microchip-laser in flash lamp pumped amplifier is demonstrated. Compact hybrid laser system with diode pumped microchip master oscillator and two-pass flash lamp pumped amplifier with 300 ps pulse dutation and 300 mJ output energy operating at repetition rate up to 50 Hz is developed. Features of the laser system design are described.