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Grating induced transparency (GIT) and the dark mode in optical waveguides

Liu, Hsi-Chun and Yariv, Amnon (2009) Grating induced transparency (GIT) and the dark mode in optical waveguides. Optics Express, 17 (14). pp. 11710-11718. ISSN 1094-4087.

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We propose and describe a new class of optical modes consisting of superposition of three waveguide modes which can be supported by a few-mode waveguide spatially modulated by two co-spatial gratings. These supermodes bear a close, but not exact, formal analogy to the three-level quantum states involved in EIT and its attendant slow light propagation characteristics. Of particular interest is the supermode which we call the dark mode in which, in analogy with the dark state of EIT, one of the three uncoupled waveguide modes is not excited. This mode has unique dispersion characteristics that translate into a slow light propagation which possesses high bandwidth-delay product and can form the basis for a new generation of optical resonators and lasers.

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Additional Information:© 2009 Optical Society of America. Original Manuscript: May 18, 2009. Manuscript Accepted: June 21, 2009. Revised Manuscript: June 21, 2009. Published: June 26, 2009. The authors acknowledge the support of Taiwan Merit Scholarship TMS-094-2-A-039. OCIS codes: (230.7370) Waveguides; (050.2770) Gratings; (230.5750) Resonators.
Funding AgencyGrant Number
Taiwan Merit ScholarshipTMS-094-2-A-039
Subject Keywords:Optical waveguides; gratings; optical resonators
Record Number:CaltechAUTHORS:20090821-140315573
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Official Citation:Hsi-Chun Liu and Amnon Yariv, "Grating induced transparency (GIT) and the dark mode in optical waveguides," Opt. Express 17, 11710-11718 (2009)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:15242
Deposited By: George Porter
Deposited On:08 Sep 2009 21:45
Last Modified:26 Dec 2012 11:14

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