2005/05/31 by G. Kh. Kitaeva, V. V. Tishkova, I. I. Naumova +3
Engineering · Physics and Astronomy · #Optical and Acousto-Optic Technologies #Photorefractive and Nonlinear Optics #Solid State Laser Technologies #physics.ins-det #physics.optics
paper · pdf · doi:10.1007/s00340-005-1923-1
published as Applied Physics B: Lasers and Optics. Volume 81, Number 5, pages: 645 - 650. Date: September 2005 · 19 pages, 6 figures
arxiv created 2005/05/31 · openalex publication_date 2005/08/18 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A new method for characterization of periodically poled crystals is developed based on spontaneous parametric down-conversion. The method is demonstrated on crystals of Y:LiNbO3, Mg:Y:LiNbO3 with non-uniform periodically poled structures, obtained directly under Czochralski growth procedure and designed for application of OPO in the mid infrared range. Infrared dispersion of refractive index, effective working periods and wavelengths of OPO were determined by special treatment of frequency-angular spectra of spontaneous parametric down-conversion in the visible range. Two-dimensional mapping via spontaneous parametric down-conversion is proposed for characterizing spatial distribution of bulk quasi-phase matching efficiency across the input window of a periodically poled sample.