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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 3 — Feb. 6, 2006
  • pp: 1223–1229

Photonic crystal directional coupler switch with small switching length and wide bandwidth

Noritsugu Yamamoto, Toru Ogawa, and Kazuhiro Komori  »View Author Affiliations

Optics Express, Vol. 14, Issue 3, pp. 1223-1229 (2006)

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A directional coupler switch structure capable of short switching length and wide bandwidth is proposed. The switching length and bandwidth have a trade-off relationship in conventional directional coupler switches. Dispersion curves that avoid this trade-off are derived, and a two-dimensional photonic crystal structure that achieves these dispersion curves is presented. Numerical calculations show that the switching length of the proposed structure is 7.1% of that for the conventional structure, while the bandwidth is 2.17 times larger.

© 2006 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(230.7400) Optical devices : Waveguides, slab

ToC Category:
Optical Devices

Original Manuscript: November 29, 2005
Revised Manuscript: January 13, 2006
Manuscript Accepted: January 23, 2006
Published: February 6, 2006

Noritsugu Yamamoto, Toru Ogawa, and Kazuhiro Komori, "Photonic crystal directional coupler switch with small switching length and wide bandwidth," Opt. Express 14, 1223-1229 (2006)

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  14. N. Yamamoto, J. Sugisaka, S. H. Jeong, and K. Komori, unpublished.

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