Highly efficient coupling between a monolithically integrated photonic crystal cavity and a bus waveguide

Kapil Debnath*, Karl Peter Welna, Marcello Ferrera, Kieran Deasy, David Lidzey, Thomas Fraser Krauss, Liam O'Faolain

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)
1 Downloads (Pure)

Abstract

We experimentally demonstrate a new optical filter design comprising of a photonic crystal cavity and a low index bus waveguide which are monolithically integrated on a silicon-on-insulator (SOI) platform. We have fabricated oxide clad PhC cavities with a silicon nitride waveguide positioned directly above, such that there is an overlap between the evanescent tails of the two modes. We have realised an extinction ratio of 7.5dB for cavities with total Q of 50,000.
Original languageEnglish
Title of host publicationIntegrated Optics: Devices, Materials, and Technologies XVI
Subtitle of host publicationMonday 23 January 2012, San Francisco, California, USA
EditorsJean Emmanuel Broquin, Gualtiero Nunzi Conti
Place of PublicationBellingham
PublisherSPIE
Pages82640F
Number of pages6
ISBN (Print)9780819489074
DOIs
Publication statusPublished - 30 Jan 2012
EventConference on Integrated Optics - Devices, Materials, and Technologies XVI - San Francisco, Canada
Duration: 23 Jan 201225 Jan 2012

Publication series

NameProceedings of SPIE-The International Society for Optical Engineering
Volume8264
ISSN (Print)0277-786X

Conference

ConferenceConference on Integrated Optics - Devices, Materials, and Technologies XVI
Country/TerritoryCanada
CitySan Francisco
Period23/01/1225/01/12

Keywords

  • cavity-waveguide coupling
  • LASER
  • NANOCAVITY
  • RESONATOR
  • WDM
  • Photonic crystal
  • MODES
  • SLABS
  • DROP FILTERS
  • FIBER

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