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An Adaptive Approach to the Numerical Solution of Fresnel's Wave Equation.

Please always quote using this URN: urn:nbn:de:0297-zib-628
  • An adaptive approach to the numerical solution of the wave propagation in integrated optics devices with 1D cross sections is described. First, Fresnel's approximation of the exact wave equation resulting from Maxwell's equations is considered. A criterion to estimate the validity of this approximation is derived. Fresnel's wave equation being formally equivalent to Schroedinger's equation uniquely defines an initial-boundary-value problem, which is solved numerically by a stepwise calculation of the propagating field. Discretization in longitudinal direction first with stepsize control leads to a stationary subproblem for the transversal field distribution, which is then handled by an adaptive finite element method. Thus full adaptivity of the algorithm is realized. The numerical examples are concentrated on taper structures playing an essential role in integrated optics devices for telecommunication systems.

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Metadaten
Author:Frank Schmidt
Document Type:ZIB-Report
Date of first Publication:1991/12/04
Series (Serial Number):ZIB-Report (SC-91-12)
ZIB-Reportnumber:SC-91-12
Published in:Appeared in: IEEE Journal of Lightwave Technology, Vol. 11, No. 9, Sept. 1993, pp. 1425-1434
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