Optomechanical Self-Channeling of Light in a Suspended Planar Dual-Nanoweb Waveguide

A. Butsch, C. Conti, F. Biancalana, P. St J. Russell

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Abstract

It is shown that optomechanical forces can cause nonlinear self-channeling of light in a planar dual-slab waveguide. A system of two parallel silica nanowebs, spaced similar to 100 nm and supported inside a fiber capillary, is studied theoretically and an iterative scheme developed to analyze its nonlinear optomechanical properties. Steady-state field distributions and mechanical deformation profiles are obtained, demonstrating that self-channeling is possible in realistic structures at launched powers as low as a few mW. The differential optical nonlinearity of the self-channeled mode can be as much as 10 x 10(6) times higher than the corresponding electronic Kerr nonlinearity. It is also intrinsically broadband, does not utilize resonant effects, can be viewed as a consequence of the extreme nonlocality of the mechanical response, and in fact is a notable example of a so-called accessible soliton.

Original languageEnglish
Article number093903
Pages (from-to)-
Number of pages5
JournalPhysical Review Letters
Volume108
Issue number9
DOIs
Publication statusPublished - 2 Mar 2012

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