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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 6, Iss. 2 — Feb. 1, 2007
  • pp: 90–101

Systematic investigation of misalignment effects at junctions between feeder waveguide and photonic crystal channel waveguide

Marco Gnan, Iraklis Ntakis, Pierre Pottier, Richard M. De La Rue, and Paolo Bassi  »View Author Affiliations

Journal of Optical Networking, Vol. 6, Issue 2, pp. 90-101 (2007)

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<p><a href="http://www.osa-jon.org/virtual_issue.cfm?vid=28">Feature Issue on Nanoscale Integrated Photonics for Optical Networks</a></p>The coupling between two different guiding elements, a ridge waveguide and a photonic crystal channel waveguide (obtained by a single line defect in the crystal), is investigated both computationally and experimentally. The study concentrates on the effects that different widths for the ridge waveguide, as well as positions with respect to the channel waveguide, have on the coupling efficiency--thus allowing the assessment of the sensitivity to drift effects that can occur in fabrication--and the optimal design parameters. Characterization of devices fabricated in GaAs/AlGaAs epitaxial waveguide material shows good overall agreement with the simulated trends for all the configurations of the junction considered. On the other hand, the trends from experiments also demonstrate reduced dependency of transmission on mismatch, by comparison with simulations. Finally, the configuration, which allows optimum coupling and transmission (98%), is found to be verified by both simulation and characterization.

© 2007 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(220.0220) Optical design and fabrication : Optical design and fabrication

ToC Category:
Nanoscale Integrated Photonics for Optical Networks

Original Manuscript: August 15, 2006
Revised Manuscript: November 9, 2006
Manuscript Accepted: November 9, 2006
Published: January 9, 2007

Virtual Issues
Nanoscale Integrated Photonics for Optical Networks (2006) Journal of Optical Networking

Marco Gnan, Iraklis Ntakis, Pierre Pottier, Richard M. De La Rue, and Paolo Bassi, "Systematic investigation of misalignment effects at junctions between feeder waveguide and photonic crystal channel waveguide," J. Opt. Netw. 6, 90-101 (2007)

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