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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 9 — Mar. 20, 2011
  • pp: 1260–1265

Dispersion engineering of a silicon-nanocrystal-based slot waveguide for broadband wavelength conversion

Qiang Liu, Shiming Gao, Zhiqiang Li, Yanqiao Xie, and Sailing He  »View Author Affiliations

Applied Optics, Vol. 50, Issue 9, pp. 1260-1265 (2011)

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A proposal for broadband wavelength conversion using four-wave mixing is presented based on a slot waveguide with silicon nanocrystals (Si-nc’s) as the optical nonlinear material. The dispersion of the waveguide is engineered to realize a flat dispersion as well as a small effective mode area for better nonlinear interaction by optimizing the waveguide dimensions. The conversion performance is synthetically analyzed and numerical results show that a bandwidth of over 400 nm and an efficiency of 2.38 dB can be achieved using a pump power of 150 mW in a 4 mm long Si-nc slot waveguide with slot width of 50 nm , slab width of 310 nm , and height of 305 nm .

© 2011 Optical Society of America

OCIS Codes
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(130.7405) Integrated optics : Wavelength conversion devices

ToC Category:
Nonlinear Optics

Original Manuscript: September 27, 2010
Revised Manuscript: January 11, 2011
Manuscript Accepted: January 23, 2011
Published: March 17, 2011

Qiang Liu, Shiming Gao, Zhiqiang Li, Yanqiao Xie, and Sailing He, "Dispersion engineering of a silicon-nanocrystal-based slot waveguide for broadband wavelength conversion," Appl. Opt. 50, 1260-1265 (2011)

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