Localized Structures in Dissipative Nonlinear Systems - Abstract

Tran, Truong

Quantum optics and squeezing of dispersive resonant radiation from optical solitons

Squeezing is a fundamental quantum-optical process which refers to the generation of a special state of an electromagnetic field for which noise fluctuations are reduced, for some frequency range, below the shot-noise level that is imposed by vacuum fluctuations in absence of squeezed states. Quadrature squeezing induced by nonlinear effects such as four-wave mixing (FWM) and self-phase modulation (SPM) are well known and they have been studied starting from the 80's. Here we present a new kind of hybrid squeezing induced by optical solitons on dispersive resonant (or 'Cherenkov') radiation coming from the quantum fluctuations around the resonant frequency in photonic crystal fibers. By using a new method based on Green's function formalism, we find the existence of an optimal length of the fiber for which the squeezing is maximized.