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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 13714–13721

Abrupt coupling between strongly dissimilar waveguides with 100% transmission

André Kurs, John D. Joannopoulos, Marin Soljačić, and Steven G. Johnson  »View Author Affiliations


Optics Express, Vol. 19, Issue 14, pp. 13714-13721 (2011)
http://dx.doi.org/10.1364/OE.19.013714


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Abstract

We present numerical experiments showing how coupled-mode theory can be systematically applied to join very dissimilar photonic crystal waveguides with 100% transmission. Our approach relies on appropriately tuning the coupling of the evanescent tail of a cavity mode to each waveguide. The transition region between the waveguides may be as short as a few lattice spacings. Moreover, this technique only requires varying a small number of parameters (two for each waveguide in our example) and the tuning to each waveguide may be done separately, greatly simplifying the computations involved.

© 2011 OSA

OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices

ToC Category:
Integrated Optics

History
Original Manuscript: May 9, 2011
Revised Manuscript: June 15, 2011
Manuscript Accepted: June 16, 2011
Published: June 30, 2011

Citation
André Kurs, John D. Joannopoulos, Marin Soljačić, and Steven G. Johnson, "Abrupt coupling between strongly dissimilar waveguides with 100% transmission," Opt. Express 19, 13714-13721 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-14-13714


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