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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 23 — Nov. 15, 2004
  • pp: 5625–5633

Self-imaging phenomena in multi-mode photonic crystal line-defect waveguides: application to wavelength de-multiplexing

Hyun-Jun Kim, Insu Park, Beom-Hoan O, Se-Geun Park, El-Hang Lee, and Seung-Gol Lee  »View Author Affiliations

Optics Express, Vol. 12, Issue 23, pp. 5625-5633 (2004)

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We show that the self-imaging principle still holds true in multi-mode photonic crystal (PhC) line-defect waveguides just as it does in conventional multi-mode waveguides. To observe the images reproduced by this self-imaging phenomenon, the finite-difference time-domain computation is performed on a multi-mode PhC line-defect waveguide that supports five guided modes. From the computed result, the reproduced images are identified and their positions along the propagation axis are theoretically described by self-imaging conditions which are derived from guided mode propagation analysis. We report a good agreement between the computational simulation and the theoretical description. As a possible application of our work, a photonic crystal 1-to-2 wavelength de-multiplexer is designed and its performance is numerically verified. This approach can be extended to novel designs of PhC devices.

© 2004 Optical Society of America

OCIS Codes
(130.1750) Integrated optics : Components
(130.3120) Integrated optics : Integrated optics devices

ToC Category:
Research Papers

Original Manuscript: September 27, 2004
Revised Manuscript: October 29, 2004
Published: November 15, 2004

Hyun-Jun Kim, Insu Park, Beom-Hoan O, Se-Geun Park, El-Hang Lee, and Seung-Gol Lee, "Self-imaging phenomena in multi-mode photonic crystal line-defect waveguides: application to wavelength de-multiplexing," Opt. Express 12, 5625-5633 (2004)

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