Large-aperture and high-energy seeded operation of optical parametric generators (OPGs) based on quasi-phase-matched crystals is presented. High-quality seeded outputs as evidenced by narrow bandwidth and low divergence are demonstrated with energies up to 12.5 mJ in the signal and the idler. The results of OPG devices operating in a partially seeded regime are also presented to give a general prescription for successful seeding at high energies.
© 2005 Optical Society of America
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
Peter E. Powers, Prasanth K. Bojja, Rashid Alkuwari, Eric Vershure, and Kenneth L. Schepler, "High-energy seeded optical parametric generation with elliptical beams in quasi-phase-matched crystals," J. Opt. Soc. Am. B 22, 2169-2177 (2005)