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Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 15, Iss. 9 — Apr. 30, 2007
  • pp: 5264–5270

Experimental demonstration of wideband dispersion-compensated slow light by a chirped photonic crystal directional coupler

Daisuke Mori, Shousaku Kubo, Hirokazu Sasaki, and Toshihiko Baba  »View Author Affiliations


Optics Express, Vol. 15, Issue 9, pp. 5264-5270 (2007)
http://dx.doi.org/10.1364/OE.15.005264


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Abstract

We report on the fabrication and evaluation of a directional coupler consisting of two different chirped photonic crystal (PC) waveguides that can generate wideband, low dispersion slow light. The directional coupler was fabricated from a silicon-on-insulator PC slab with airhole diameter chirping. For both waveguides, we observed a group index of 60–80 near the photonic band edge and opposite dispersion characteristics. In the directional coupler, we evaluated a group index of 30–40 in a wavelength bandwidth of 32 nm. The experimental results agree with the theoretical relation between the group index and bandwidth.

© 2007 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Photonic Crystals

History
Original Manuscript: January 17, 2007
Revised Manuscript: April 11, 2007
Manuscript Accepted: April 11, 2007
Published: April 16, 2007

Citation
Daisuke Mori, Shousaku Kubo, Hirokazu Sasaki, and Toshihiko Baba, "Experimental demonstration of wideband dispersion-compensated slow light by a chirped photonic crystal directional coupler," Opt. Express 15, 5264-5270 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-9-5264


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