Data di Pubblicazione:
2008
Citazione:
A method of variation of boundaries for waveguide grating couplers / G. Ciraolo. - In: APPLICABLE ANALYSIS. - ISSN 0003-6811. - 87:9(2008), pp. 1019-1040. [10.1080/00036810802428961]
Abstract:
We describe a method for calculating the solution of the electromagnetic field in a non-rectilinear open waveguide by using a series expansion, starting from the field of a rectilinear waveguide. Our approach is based on a method of variation of boundaries. We prove that the obtained series expansion converges and we provide a radiation condition at infinity in such a way that the problem has a unique solution. Our approach can model several kinds of optical devices which are used in optical integrated circuits. Numerical examples will be shown for the case of finite aperiodic waveguide grating couplers.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
wave propagation; Helmholtz equation; optical waveguides
Elenco autori:
G. Ciraolo
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