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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 10, Iss. 15 — Jul. 29, 2002
  • pp: 691–698

Two compact structures for perpendicular coupling of optical signals between dielectric and photonic crystal waveguides

Michael E. Potter and Richard W. Ziolkowski  »View Author Affiliations

Optics Express, Vol. 10, Issue 15, pp. 691-698 (2002)

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Two structures are analyzed with numerical modeling as candidates for perpendicular coupling of optical signals from a dielectric waveguide to a photonic bandgap (PBG) waveguide. The first consists of a perfectly electric conducting (PEC) grating and PBG mirror to couple power out of the dielectric waveguide, along with a circular-like lens to couple that power into the PBG waveguide. The second consists of a slanted inline fiber Bragg grating to couple power out of the dielectric waveguide, and a graded-index (GRIN) lens to couple that power into the PBG waveguide. Power transfer efficiencies of 50% and 71%, respectively, are reported. Such structures would be useful in WDM applications, and/or where circuit real estate restrictions demand coupling perpendicular to the dielectric guide over small distances.

© 2002 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(230.3120) Optical devices : Integrated optics devices

ToC Category:
Research Papers

Original Manuscript: June 11, 2002
Revised Manuscript: July 19, 2002
Published: July 29, 2002

Michael Potter and Richard Ziolkowski, "Two compact structures for perpendicular coupling of optical signals between dielectric and photonic crystal waveguides," Opt. Express 10, 691-698 (2002)

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