title: Half-joule output optical-parametric oscillation by using 10-mm-thick periodically poled Mg-doped congruent LiNbO3.
abstract: We present a next generation of large-aperture periodically poled Mg-doped LiNbO3 (PPMgLN) device with 10-mm thickness. Efficient optical parametric oscillation with 540 mJ output energy at 709 mJ pumping by 1.064 µm laser in 10 nanoseconds operation could be demonstrated using the 10-mm-thick PPMgLN with an inversion period of 32.2 µm at total conversion efficiency > 76%. We also confirmed that degradation effect of conversion-efficiency distribution by wedged-inversion structures, which is inevitable in current poling condition of the large-aperture PPMgLN, can be ignored in high-intensity operation.
authors.affiliation: Laser Research Center for Molecular Science, Institute for Molecular Science,  38 Nishigonaka, Myodaiji, Okazaki, 444-8585, Japan. ishizuki@ims.ac.jp
authors.forename: Hideki
authors.initials: H
authors.lastname: Ishizuki
authors.forename: Takunori
authors.initials: T
authors.lastname: Taira
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State; D008274:Magnesium / Q000737:chemistry*; D009556:Niobium / Q000737:chemistry*; D009991:Oscillometry / Q000295:instrumentation*; D010087:Oxides / Q000737:chemistry*
chemical_list: D010087:Oxides; D009556:Niobium; C091692:lithium niobate; D008274:Magnesium