Out-of-plane losses of line-defect photonic crystal waveguides

A numerical model is presented for computing the out-of-plane losses of a general class of two-dimensional photonic crystals superimposed. onto a slab confinement structure. The usefulness of this model is demonstrated by calculating the propagation loss of a single-row-defect waveguide composed of...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 14; no. 5; pp. 642 - 644
Main Author Hadley, G.R.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.05.2002
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Confinement
Electromagnetic coupling
Equations
Etching
Joining
Mathematical models
Optical computing
Optical losses
Optical waveguide theory
Optical waveguides
Photonic crystals
Planar waveguides
Slabs
Wave propagation
Waveguides
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Summary:A numerical model is presented for computing the out-of-plane losses of a general class of two-dimensional photonic crystals superimposed. onto a slab confinement structure. The usefulness of this model is demonstrated by calculating the propagation loss of a single-row-defect waveguide composed of hexagonal air holes etched into two different slab structures. The results are interpreted in terms of a simple coupled-mode-theory picture in which loss is due to resonant coupling between the fundamental and certain radiative slab modes. These calculations show that low-loss photonic crystal waveguides should be possible by carefully designing the slab waveguide.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1041-1135
1941-0174
DOI:10.1109/68.998711