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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 9 — Sep. 1, 2007
  • pp: 2378–2388

Active coupled-resonator optical waveguides. I. Gain enhancement and noise

Joyce K. S. Poon and Amnon Yariv  »View Author Affiliations


JOSA B, Vol. 24, Issue 9, pp. 2378-2388 (2007)
http://dx.doi.org/10.1364/JOSAB.24.002378


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Abstract

We use a tight-binding formalism in the time domain to analyze the effect of resonant gain enhancement and spontaneous emission noise in amplifying coupled-resonator optical waveguides (CROWs). We find the net amplification of a wave propagating in a CROW does not always vary with the group velocity, and depends strongly on the termination and excitation of these structures. The signal-to-noise ratio and noise figure of CROW amplifiers are derived in the tight-binding formalism as well. The physical interpretations and practical consequences of the theoretical results are discussed.

© 2007 Optical Society of America

OCIS Codes
(140.3290) Lasers and laser optics : Laser arrays
(230.5750) Optical devices : Resonators
(250.4480) Optoelectronics : Optical amplifiers

ToC Category:
Optical Devices

History
Original Manuscript: May 10, 2007
Manuscript Accepted: June 4, 2007
Published: August 24, 2007

Citation
Joyce K. S. Poon and Amnon Yariv, "Active coupled-resonator optical waveguides. I. Gain enhancement and noise," J. Opt. Soc. Am. B 24, 2378-2388 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-9-2378

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