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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 16 — Aug. 2, 2010
  • pp: 16309–16319

Improvement of delay-bandwidth product in photonic crystal slow-light waveguides

Ran Hao, Eric Cassan, Xavier Le Roux, Dingshan Gao, Van Do Khanh, Laurent Vivien, Delphine Marris-Morini, and Xinliang Zhang  »View Author Affiliations


Optics Express, Vol. 18, Issue 16, pp. 16309-16319 (2010)
http://dx.doi.org/10.1364/OE.18.016309


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Abstract

We report new results about the improvement of delay-bandwidth product in photonic crystal slow light waveguides. Previous studies have obtained large delay-bandwidth product at the price of small average group index. It is pointed out here that the radius and the distance between the two boundary rows of holes have a key contribution for delay-bandwidth product. We show the possibility of improving this factor of merit meanwhile maintaining the same group index. We succeed in improving normal delay-bandwidth product from 0.15 to 0.35, keeping at the same time the group index unchanged at high value of 90. This optimization approach may be applicable for previous flat band slow light devices.

© 2010 OSA

OCIS Codes
(200.4490) Optics in computing : Optical buffers
(130.5296) Integrated optics : Photonic crystal waveguides
(230.5298) Optical devices : Photonic crystals

ToC Category:
Photonic Crystals

History
Original Manuscript: May 20, 2010
Revised Manuscript: July 1, 2010
Manuscript Accepted: July 4, 2010
Published: July 19, 2010

Citation
Ran Hao, Eric Cassan, Xavier Le Roux, Dingshan Gao, Van Do Khanh, Laurent Vivien, Delphine Marris-Morini, and Xinliang Zhang, "Improvement of delay-bandwidth product in photonic crystal slow-light waveguides," Opt. Express 18, 16309-16319 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-16-16309


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