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13 August 1993 Three-dimensional anisotropic physical optics modeling of three-wave mixing
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Proceedings Volume 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications; (1993) https://doi.org/10.1117/12.150605
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
Abstract
A three-wave mixing crystal is an anisotropic material. To model beam propagation through such a medium, one must have a propagator which includes the anisotropic effects, such as walkoff, in addition to the usual diffraction effect. This requirement leads to the specific exponential forms appearing in the set of coupled differential equations we use to model the nonlinear coupling. In this paper, three coupled beams in two transverse dimensions (i.e., with arbitrary initial cross sections) are propagated through an anisotropic three-wave mixing crystal with their bulk absorption and surface losses included. We present the theory of anisotropic propagation and the field coupling of three wave-mixing, including phase matching/mismatching. Results from the full numerical simulations are compared with experimental data. Our numerical approach avoids a number of simplifications common in analytical treatments, thereby providing more realistic modeling of experimental situations.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sam S. Ma, Dennis M. Guthals, Blair F. Campbell, and Patrick H. Hu "Three-dimensional anisotropic physical optics modeling of three-wave mixing", Proc. SPIE 1868, Laser Resonators and Coherent Optics: Modeling, Technology, and Applications, (13 August 1993); https://doi.org/10.1117/12.150605
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