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In this paper we employ the one-dimensional (1-D) quadratic finite element method (FEM) to obtain the numerical solution of the nonlinear coupled-wave equations for degenerate two-wave mixing (DTWM) and four-wave mixing (DFWM) in photorefractive media. A comparison is made between the computed results obtained from the quadratic element FEM, the first-order element FEM [1] and the exact method.
© 1987 Optical Society of America
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