Compact broadband directional coupler

DOIResolve DOI: http://doi.org/10.1109/GROUP4.2012.6324125
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Conference2012 IEEE 9th International Conference on Group IV Photonics (GFP), 2012-08-29 - 2012-08-31, San Diego, CA, USA
ISBN978-1-4577-0825-1
978-1-4577-0826-8
978-1-4577-0824-4
Pages177179; # of pages: 3
Subjectdiffraction gratings; finite difference time-domain analysis; optical directional couplers; optical dispersion
AbstractDirectional couplers are key building blocks for network-on-chip devices such as wavelength demultiplexers and switches. The operational bandwidth of directional couplers is, however, limited, and existing techniques to extend their bandwidth result in significantly increased device footprints and degraded phase response. Here we present a novel approach to enhance the bandwidth of directional couplers without affecting their size or phase response. Using dispersion engineering of sub-wavelength gratings we show by 3D FDTD simulations a fivefold increase in coupler bandwidth from 20nm to 100 nm.
PublisherIEEE
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NPARC number21269122
Export citationExport as RIS
Report a correctionReport a correction
Record identifier580c667b-4d34-4820-b436-39a8aa39fdc9
Record created2013-12-06
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)