nonlinear fiber optics by relying on simple quantum pictures of the processes (linear and
nonlinear) occurring along propagation in an optical fiber. This equation is shown to be in
excellent agreement with the classical Generalized Nonlinear Schrodinger Equation and
predicts the effects of self-steepening and spontaneous Raman scattering. Last, we apply
these results to the analysis of two cases of relevance in quantum technologies: single …