Two-mode nonlinear interaction (second-harmonic and second-subharmonic generation) in a planar waveguide with a small periodic corrugation at the surface is studied. Scattering of the interacting fields on the corrugation leads to constructive interference that enhances the nonlinear process provided that all the interactions are phase matched. Conditions for the overall phase matching are found. Compared with a perfectly quasi-phase-matched waveguide, better values of squeezing as well as higher intensities are reached under these conditions. Procedure for finding optimum values of parameters for squeezed-light generation is described.
Squeezed-light generation in a nonlinear planar waveguide with a periodic corrugation / J., Perina Jr; Ondrej, Haderka; Sibilia, Concetta; Bertolotti, Mario; Michael, Scalora. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - STAMPA. - 76:3(2007), pp. 033813-1-033813-14. [10.1103/physreva.76.033813]
Squeezed-light generation in a nonlinear planar waveguide with a periodic corrugation
SIBILIA, Concetta;BERTOLOTTI, Mario;
2007
Abstract
Two-mode nonlinear interaction (second-harmonic and second-subharmonic generation) in a planar waveguide with a small periodic corrugation at the surface is studied. Scattering of the interacting fields on the corrugation leads to constructive interference that enhances the nonlinear process provided that all the interactions are phase matched. Conditions for the overall phase matching are found. Compared with a perfectly quasi-phase-matched waveguide, better values of squeezing as well as higher intensities are reached under these conditions. Procedure for finding optimum values of parameters for squeezed-light generation is described.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
