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Design of a New Taper for Light Coupling Between a Ridge Waveguide and a Photonic Crystal Waveguide

Published online by Cambridge University Press:  01 February 2011

Cécile Jamois ,
Torsten Geppert  and
Ralf B. Wehrspohn
Cécile Jamois
Affiliation:
Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany.
Torsten Geppert
Affiliation:
Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle, Germany. Nanophotonic Materials Group, Department of Physics, University of Paderborn, Warburger Strasse 100, 33098 Paderborn, Germany.
Ralf B. Wehrspohn
Affiliation:
Nanophotonic Materials Group, Department of Physics, University of Paderborn, Warburger Strasse 100, 33098 Paderborn, Germany.
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Abstract

We propose the design of a new taper to improve light coupling between a photonic-crystal-based W1 waveguide and a ridge waveguide of similar width. The taper design is directly deduced from band structure calculations and allows an adiabatic mode conversion. The comparison between light propagation from the ridge waveguide through the W1 waveguide and through the taper, respectively, shows good improvement of the coupling efficiency.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 797: Symposium W – Engineered Porosity for Microphotonics and Plasmonics , 2003 , W6.7
Copyright
Copyright © Materials Research Society 2004

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References

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