The High-Repetition-Rate Advanced Petawatt Laser System (HAPLS) under construction at LLNL recently achieved a key average power milestone more than two months ahead of schedule, and is now moving into the next phase in its development.
The HAPLS high-energy diode-pumped solid-state pump laser, firing at a repetition rate of 3.3 Hz (3.3 shots per second), achieved 70 joules of infrared (1,053-nanometer) energy and 39 joules of green (527-nm) energy. Completion of this average-power milestone marks another major setp in the HAPLS commissioning plan: beginning of integrating the pump laser with the HAPLS high-energy short-pulse beamline.
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