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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 10, Iss. 24 — Dec. 2, 2002
  • pp: 1391–1397

Mode matching technique for highly efficient coupling between dielectric waveguides and planar photonic crystal circuits

P. Sanchis, J. Martí, J. Blasco, A. Martínez, and A. García  »View Author Affiliations

Optics Express, Vol. 10, Issue 24, pp. 1391-1397 (2002)

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In this paper, a mode matching technique for highly efficient coupling between dielectric silica waveguides (SWG) and planar photonic crystal (PPC) waveguides based on setting localized defects in a PPC tapered waveguide is reported. The introduction of multiple defects is designed properly depending on mode mismatching arising from the different widths of the SWG and the PPC waveguide. The procedure to obtain the optimum defects configuration is described. Transmission efficiencies above 80% at a wavelength of 1.55μm are reported improving significantly the transmission efficiencies achieved with conventional PPC tapered structures without defects. Furthermore, the feasibility of the coupling technique for both input/output coupling over a large frequency band is shown.

© 2002 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Research Papers

Original Manuscript: October 29, 2002
Revised Manuscript: November 19, 2002
Published: December 2, 2002

Pablo Sanchis, J. Marti, J. Blasco, A. Martinez, and A. Garcia, "Mode matching technique for highly efficient coupling between dielectric waveguides and planar photonic crystal circuits," Opt. Express 10, 1391-1397 (2002)

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