Abstract
We show that the electric field components Ex and Ez of a transverse magnetic (TM) wave propagating in a nonlinear medium can be formally decomposed through a conservation law, provided that ∂∊xx/∂Ez2 = ∂∊zz/∂Ex2. If this condition is satisfied, then the electromagnetic field distribution can be exactly obtained by quadrature. For the case of a guided nonlinear TM mode, our procedure can be employed to establish the eigenvalue equation directly.
© 1987 Optical Society of America
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