Ultrafast directional switching in photonic-crystal branched waveguides using electro-optical control

N. Malkova, Cun-Zheng Ning

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We propose and investigate ultrafast switching of light beams between different ports of a multibranch waveguide in photonic crystals. The branched waveguide is made of chains of coupled defects with degenerate states providing guided modes. Introduced at the corner of branches is a control cell made of an electro-optical active material. Depending on the symmetry of the refractive index changes, light propagation can be directed to specified direction. Dynamic changes of refractive index then provide ultrafast switching of light beams into a desired branch.

Original languageEnglish (US)
Pages (from-to)978-985
Number of pages8
JournalJournal of the Optical Society of America B: Optical Physics
Volume23
Issue number5
DOIs
StatePublished - 2006
Externally publishedYes

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optical control
light beams
photonics
refractivity
waveguides
crystals
propagation
defects
symmetry
cells

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

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AB - We propose and investigate ultrafast switching of light beams between different ports of a multibranch waveguide in photonic crystals. The branched waveguide is made of chains of coupled defects with degenerate states providing guided modes. Introduced at the corner of branches is a control cell made of an electro-optical active material. Depending on the symmetry of the refractive index changes, light propagation can be directed to specified direction. Dynamic changes of refractive index then provide ultrafast switching of light beams into a desired branch.

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