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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 18, Iss. 11 — Nov. 1, 2001
  • pp: 2799–2805

Narrow-band microcavity waveguides in photonic crystals

Amir Boag and Ben Zion Steinberg  »View Author Affiliations

JOSA A, Vol. 18, Issue 11, pp. 2799-2805 (2001)

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A novel device, formed by a widely spaced periodic array of defects in a photonic bandgap crystal, is studied with the goal of designing a waveguide with a prescribed narrow bandwidth. Tunneling of radiation between the defect sites allows wave propagation along the line of the defects. An analytical study based on the weakly coupled cavity model is performed, and the dispersion relation ω(β) of the new waveguide is derived. The frequency shift and the band structure of the periodic defect waveguide are linked by an analytic relationship to the distance between the defect sites and therefore can be tuned by varying the latter. Sections of such waveguides can be employed as ultra-narrow-band filters in optical routing devices. Numerical simulations demonstrate the performances of this new device and support the analytical predictions.

© 2001 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves

Original Manuscript: October 10, 2000
Revised Manuscript: February 26, 2001
Manuscript Accepted: March 28, 2001
Published: November 1, 2001

Amir Boag and Ben Zion Steinberg, "Narrow-band microcavity waveguides in photonic crystals," J. Opt. Soc. Am. A 18, 2799-2805 (2001)

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