Compact couplers for overmoded three-dimensional photonic crystal waveguides

Benjamin M. Cowan; Robert L. Byer; Eric R. Colby; Robert J. England; Ming-Chieh Lin; Christopher McGuinness; Robert J. Noble; Brian T. Schwartz; James E. Spencer

doi:10.1117/12.841538

23 February 2010 Compact couplers for overmoded three-dimensional photonic crystal waveguides

Benjamin M. Cowan, Robert L. Byer, Eric R. Colby, Robert J. England, Ming-Chieh Lin, Christopher McGuinness, Robert J. Noble, Brian T. Schwartz, James E. Spencer

Author Affiliations +

Proceedings Volume 7609, Photonic and Phononic Crystal Materials and Devices X; 76091B (2010) https://doi.org/10.1117/12.841538
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

An overmoded photonic crystal waveguide based on the three-dimensional woodpile lattice has been proposed for a highenergy charged particle accelerator. Critical to overall accelerator efficiency is the ability to couple power into an uninterrupted vacuum waveguide in a very small volume. We present designs and simulations of coupling to the waveguide, both from free space and from a waveguide adjoining it at 90 degrees. We discuss details of the computation, including the use of symmetries and extraction of the resulting transmission.

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Benjamin M. Cowan, Robert L. Byer, Eric R. Colby, Robert J. England, Ming-Chieh Lin, Christopher McGuinness, Robert J. Noble, Brian T. Schwartz, and James E. Spencer "Compact couplers for overmoded three-dimensional photonic crystal waveguides", Proc. SPIE 7609, Photonic and Phononic Crystal Materials and Devices X, 76091B (23 February 2010); https://doi.org/10.1117/12.841538

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KEYWORDS

Waveguides

Photonic crystals

Free space

Particles

Particle beams

Wave propagation

Particle accelerators

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