Chinese Optics Letters, 2011, 9 (12): 121901, Published Online: Nov. 4, 2011
Thermally induced dephasing of high power second harmonic generation in MgO:LiNbO3 waveguides Download: 571次
190.2620 Harmonic generation and mixing 190.4870 Photothermal effects 190.4390 Nonlinear optics, integrated optics
Abstract
High power second harmonic generation (SHG) in MgO-doped LiNbO3 waveguides is investigated using a three-dimensional (3D) coupled thermo-optical model. Simulations performed for a 1 111.6-nm fundamental laser show the influence of the absorptions and the thermally induced dephasing on the conversion efficiencies of the different waveguides. The onset of the thermally induced dephasing effect for each waveguide is also indicated. As a result of high light intensity in the waveguide, nonlinear absorptions are identified as the possible main factors in efficiency losses in specific cases.
Guohui Li, Xinye Xu. Thermally induced dephasing of high power second harmonic generation in MgO:LiNbO3 waveguides[J]. Chinese Optics Letters, 2011, 9(12): 121901.