Demonstration of high-energy 2 ω (526.5 nm) operation on the National Ignition Facility Laser System
2008
A single beamline of the National Ignition Facility (NIF) has been operated at a wavelength of 526.5 nm (2ω) by frequency converting the fundamental 1053 nm (1ω) wavelength with an 18.2 mm thick type-I potassium dihydrogen phosphate (KDP) second-harmonic generator (SHG) crystal. Second-harmonic energies of up to 17.9 kJ were measured at the final optics focal plane with a conversion efficiency of 82%. For a similarly configured 192-beam NIF, this scales to a total 2ω energy of 3.4 MJ full NIF equivalent (FNE).
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KQI