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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9408–9418

Design and analysis of enhanced second harmonic generation in AlGaAs/AlOx microring waveguide

Mojtaba Gandomkar and Vahid Ahmadi  »View Author Affiliations


Optics Express, Vol. 19, Issue 10, pp. 9408-9418 (2011)
http://dx.doi.org/10.1364/OE.19.009408


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Abstract

In this paper, we propose and analyze a multilayer AlGaAs/AlOx waveguide structure for efficient microring based second harmonic generation (SHG). Quasi phase matching (QPM) and resonance conditions can be satisfied by designing the width of the waveguide. Linewidth of SHG in microring resonators is formulized and investigated and it is shown that linewidth of wavelength conversion is in the range of subnanometer. Dependence of efficiency of SHG on input power and the loss is investigated for various conditions like single and double microring structures, different coupling coefficients and radii. In low loss condition, larger radius of microring needs lower input power for efficient SHG. Our proposed double microring structure provides 100% conversion efficiency with lower input power as compared with a single microring structure.

© 2011 OSA

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(230.5750) Optical devices : Resonators

ToC Category:
Nonlinear Optics

History
Original Manuscript: March 23, 2011
Revised Manuscript: April 20, 2011
Manuscript Accepted: April 20, 2011
Published: April 28, 2011

Citation
Mojtaba Gandomkar and Vahid Ahmadi, "Design and analysis of enhanced second harmonic generation in AlGaAs/AlOx microring waveguide," Opt. Express 19, 9408-9418 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-10-9408


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