Coupled multiple waveguide systems

The coupled-mode equations for systems of four and five planar coupled waveguides are investigated to determine transmission characteristics of interest. By proper selection of the coupling coefficients in a system of "synchronous" waveguides, full transfer can be achieved from one outermo...

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Bibliographic Details
Published inIEEE journal of quantum electronics Vol. 19; no. 5; pp. 840 - 844
Main Authors Haus, H., Molter-Orr, L.
Format Journal Article
LanguageEnglish
Published IEEE 01.05.1983
Subjects
Couplings
Equations
Optical materials
Optical waveguide theory
Optical waveguides
Planar waveguides
Propagation constant
Sampling methods
Waveguide theory
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Summary:The coupled-mode equations for systems of four and five planar coupled waveguides are investigated to determine transmission characteristics of interest. By proper selection of the coupling coefficients in a system of "synchronous" waveguides, full transfer can be achieved from one outermost guide to the guide on the opposite side. In the five-waveguide system, an excitation of the center guide can be fully transferred to a symmetric excitation of the outer guides. Sinusoidal modulation of the propagation constants leads to transfer functions with desirable properties for sampling applications. The analysis for synchronous waveguides is extended to waveguide systems of arbitrary order. Expressions for the coupling coefficients of an N th order system are given for each of the two types of transfer characteristics described above.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.1983.1071950