Low insertion loss modulator based on a vertically coupled photonic crystal resonator

Kapil Debnath*, Liam O'Faolain, F Y Gardes, D Thomson, G T Reed, Thomas Fraser Krauss

*Corresponding author for this work

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

2 Citations (Scopus)
1 Downloads (Pure)


We experimentally demonstrate a simple but more efficient technique to modulate and multiplex multiple WDM channels. Our design is based on a bus waveguide vertically coupled to multiple Photonic Crystal (PhC) resonator, each of which modulates an individual channel in place. The Photonic crystal resonator modulator provide very low switching energies (similar to fJ) while the bus waveguide can be made from a material with a low refractive index thereby allowing very efficient coupling with an optical fiber.

Original languageEnglish
Title of host publicationOptoelectronic Interconnects XII
Subtitle of host publicationMonday 23 January 2012, San Francisco, California, USA
EditorsAlexei L. Glebov, Ray T Chen
Place of PublicationBellingham
Number of pages6
ISBN (Print)9780819489104
Publication statusPublished - 30 Jan 2012
EventConference on Optoelectronic Interconnects XII - San Francisco, Canada
Duration: 23 Jan 201225 Jan 2012

Publication series

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


ConferenceConference on Optoelectronic Interconnects XII
CitySan Francisco


  • Drop filter
  • Nanocavity
  • Nanophotonics
  • Wave guide
  • Silicon photonics
  • Optical modulator
  • Photonic crystal cavity


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