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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 12 — Jun. 15, 2012
  • pp: 2295–2297

Effective mode area and its optimization in silicon-nanocrystal waveguides

Ivan D. Rukhlenko, Malin Premaratne, and Govind P. Agrawal  »View Author Affiliations


Optics Letters, Vol. 37, Issue 12, pp. 2295-2297 (2012)
http://dx.doi.org/10.1364/OL.37.002295


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Abstract

We revisit the problem of the optimization of a silicon-nanocrystal (Si-NC) waveguide, aiming to attain the maximum field confinement inside its nonlinear core and to ensure optimal waveguide performance for a given mode power. Using a Si-NC/SiO2 slot waveguide as an example, we show that the common definition of the effective mode area may lead to significant errors in estimation of optical intensity governing the nonlinear optical response and, as a result, to poor strength evaluation of the associated nonlinear effects. A simple and physically meaningful definition of the effective mode area is given to relate the total mode power to the average field intensity inside the nonlinear region and is employed to study the optimal parameters of Si-NC slot waveguides.

© 2012 Optical Society of America

OCIS Codes
(190.4400) Nonlinear optics : Nonlinear optics, materials
(230.1150) Optical devices : All-optical devices
(230.7370) Optical devices : Waveguides

ToC Category:
Optical Devices

History
Original Manuscript: March 29, 2012
Revised Manuscript: April 26, 2012
Manuscript Accepted: May 1, 2012
Published: June 8, 2012

Citation
Ivan D. Rukhlenko, Malin Premaratne, and Govind P. Agrawal, "Effective mode area and its optimization in silicon-nanocrystal waveguides," Opt. Lett. 37, 2295-2297 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-12-2295


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References

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