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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 3 — Feb. 1, 2009
  • pp: 359–361

Experimental observation of slow mode dispersion in photonic crystal coupled-cavity waveguides

Jana Jágerská, Nicolas Le Thomas, Vasily Zabelin, Romuald Houdré, Wim Bogaerts, Pieter Dumon, and Roel Baets  »View Author Affiliations

Optics Letters, Vol. 34, Issue 3, pp. 359-361 (2009)

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We experimentally investigate the dispersion curve of an integrated silicon-on-insulator coupled-cavity waveguide in a photonic crystal environment using a technique based on far-field imaging. We show that a chain of eight coupled cavities of a moderate Q factor can form a continuous dispersion band characterized by extremely flat dispersion and a group index of 105 ± 20 within a 2.6 nm wavelength range. The experimental results are well reproduced by theoretical calculations based on the guided-mode expansion method.

© 2009 Optical Society of America

OCIS Codes
(230.4555) Optical devices : Coupled resonators
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optical Devices

Original Manuscript: October 14, 2008
Revised Manuscript: December 10, 2008
Manuscript Accepted: December 11, 2008
Published: January 29, 2009

Jana Jágerská, Nicolas Le Thomas, Vasily Zabelin, Romuald Houdré, Wim Bogaerts, Pieter Dumon, and Roel Baets, "Experimental observation of slow mode dispersion in photonic crystal coupled-cavity waveguides," Opt. Lett. 34, 359-361 (2009)

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