%0 Journal Article %T Control of squeezed light pulse spectrum in the Kerr medium with an inertial nonlinearity %A A. S. Chirkin %A F. Popescu %J Physics %D 2000 %I arXiv %X The consistent quantum theory of self-phase modulation (SPM) and cross-phase modulation (XPM) for ultrashort light pulses (USP) in medium with electronic Kerr-nonlinearity are developed. The approach makes use of momentum operator of electrical field which takes account of the inertial behaviour of the nonlinearity. The spectrum of quantum fluctuations of squeezed-quadrature component as a function of response time of nonlinearity and values of nonlinear phase shifts due to the SPM and XPM effects, is investigated. %U http://arxiv.org/abs/quant-ph/0010006v1