Squeezing due to cascaded second-order nonlinearities in quasi-phase-matched media
Résumé
We present a calculation on the squeezing performance of a quadratic nonlinear medium in which the phase-matching condition is achieved artificially by a periodic poling of the nonlinear susceptibility. We treat in particular the Kerr-like effect due to cascading of two second-order nonlinearities. We show that interesting performance can be achieved for highly integrable and nonlinear materials, by use of technologies already developed.