Abstract: A stripedly distributed transfer function method with infinite elements is introduced, which is used to analyze the guided waves in optical channel waveguides. Two kinds of infinite elements are provided conesponding to analytic direction and discrete direction. In order to simplify the expression of the infinite elements, second order equations of transfer function is chosen with account taken of the character of Helmholtz equation. Numerical results are presented for rectangular waveguides and compaied with those of other methods. The results show the advantage of this method.

Key words: optical waveguide, strip distributed transfer function method(SDTFM), infinite region, propagation constant