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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 2 — Jan. 15, 2013
  • pp: 154–156

Highly efficient optical filter based on vertically coupled photonic crystal cavity and bus waveguide

Kapil Debnath, Karl Welna, Marcello Ferrera, Kieran Deasy, David G. Lidzey, and Liam O’Faolain  »View Author Affiliations


Optics Letters, Vol. 38, Issue 2, pp. 154-156 (2013)
http://dx.doi.org/10.1364/OL.38.000154


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Abstract

We experimentally demonstrate a new optical filter design based on a vertically coupled photonic crystal (PhC) cavity and a bus waveguide monolithically integrated on the silicon-on-insulator platform. The use of a vertically coupled waveguide gives flexibility in the choice of the waveguide material and dimensions, dramatically lowering the insertion loss while achieving very high coupling efficiencies to wavelength scale resonators and thus allows the creation of PhC-based optical filters with very high extinction ratio (>10dB).

© 2013 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices
(230.5750) Optical devices : Resonators
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optical Devices

History
Original Manuscript: October 5, 2012
Revised Manuscript: December 3, 2012
Manuscript Accepted: December 8, 2012
Published: January 9, 2013

Citation
Kapil Debnath, Karl Welna, Marcello Ferrera, Kieran Deasy, David G. Lidzey, and Liam O’Faolain, "Highly efficient optical filter based on vertically coupled photonic crystal cavity and bus waveguide," Opt. Lett. 38, 154-156 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-2-154

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