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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 5 — May. 1, 2006
  • pp: 978–985

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

N. Malkova and C. Z. Ning  »View Author Affiliations

JOSA B, Vol. 23, Issue 5, pp. 978-985 (2006)

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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.

© 2006 Optical Society of America

OCIS Codes
(160.2100) Materials : Electro-optical materials
(160.5470) Materials : Polymers
(230.7370) Optical devices : Waveguides

ToC Category:
Photonic Crystals

Original Manuscript: August 24, 2005
Revised Manuscript: November 4, 2005
Manuscript Accepted: December 2, 2005

N. Malkova and C. Z. Ning, "Ultrafast directional switching in photonic-crystal branched waveguides using electro-optical control," J. Opt. Soc. Am. B 23, 978-985 (2006)

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