Abstract
The linear time-domain beam propagation method (TD–BPM) has been extended to model the propagation of pulsed optical beams in second-order nonlinear optical material of integrated waveguides. The coupled nonlinear wave equations have been derived and discretized using the explicit finite-difference method. The nonlinear TD–BPM method developed in the present work is very efficient, and is simple to implement. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 28: 253–257, 2001.
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