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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry Van Driel
  • Vol. 26, Iss. 4 — Apr. 1, 2009
  • pp: 805–809

Greatly reduced threshold power of optical bistability by using asymmetrical lineshape cavity

Lei Dai and Chun Jiang  »View Author Affiliations

JOSA B, Vol. 26, Issue 4, pp. 805-809 (2009)

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A photonic crystal waveguide-cavity structure with a partially reflecting element is exploited to achieve optical bistability. Analysis of the theoretical model and validation of the numerical simulation indicate that this structure shows an asymmetrical lineshape and a novel switching characteristic, with the nonlinear transmission power varying sharply in a very narrow linewidth range. The characteristic power can be decreased from 6.35 mW μ m of the symmetrical lineshape to 0.604 mW μ m of the asymmetrical one. Through the study of the quality factor of the cavity, the results show that the lower switch power of an asymmetrical lineshape is essentially due to the increased Q-factor, which causes more and more energy to be stored in the cavity.

© 2009 Optical Society of America

OCIS Codes
(130.4310) Integrated optics : Nonlinear
(140.3948) Lasers and laser optics : Microcavity devices
(130.5296) Integrated optics : Photonic crystal waveguides
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Integrated Optics

Original Manuscript: November 18, 2008
Revised Manuscript: December 16, 2008
Manuscript Accepted: December 18, 2008
Published: March 26, 2009

Lei Dai and Chun Jiang, "Greatly reduced threshold power of optical bistability by using asymmetrical lineshape cavity," J. Opt. Soc. Am. B 26, 805-809 (2009)

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