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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 5 — Mar. 1, 2014
  • pp: 1242–1245

Analysis of enhanced stimulated Brillouin scattering in silicon slot waveguides

Raphaël Van Laer, Bart Kuyken, Dries Van Thourhout, and Roel Baets  »View Author Affiliations


Optics Letters, Vol. 39, Issue 5, pp. 1242-1245 (2014)
http://dx.doi.org/10.1364/OL.39.001242


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Abstract

Stimulated Brillouin scattering has attracted renewed interest with the promise of highly tailorable integration into the silicon photonics platform. However, significant Brillouin amplification in silicon waveguides has yet to be shown. In an effort to engineer a structure with large photon–phonon coupling, we analyzed both forward and backward Brillouin scattering in high-index-contrast silicon slot waveguides. The calculations predict that gradient forces enhance the Brillouin gain in narrow slots. We estimate a currently feasible gain of about 10 5 W 1 m 1 in horizontal slot waveguides, which is an order of magnitude larger than in a stand-alone silicon wire. Such efficient coupling could enable a host of Brillouin technologies on a mass-producible silicon chip.

© 2014 Optical Society of America

OCIS Codes
(130.4310) Integrated optics : Nonlinear
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(290.5830) Scattering : Scattering, Brillouin

ToC Category:
Scattering

History
Original Manuscript: October 23, 2013
Revised Manuscript: January 2, 2014
Manuscript Accepted: January 16, 2014
Published: February 25, 2014

Citation
Raphaël Van Laer, Bart Kuyken, Dries Van Thourhout, and Roel Baets, "Analysis of enhanced stimulated Brillouin scattering in silicon slot waveguides," Opt. Lett. 39, 1242-1245 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-5-1242

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