Photon distributions for parametric uorescence are measured using a novel self-homodyning technique. They exhibit thermal-like character as predicted by the theory. Self-homodyning automatically matches the signal mode with the local oscillator mode.

We construct even and odd nonlinear coherent states of a parametric oscillator and examine their nonclassical properties.It has been shown that these superpositions exhibit squeezing and photon antibunching which change with time.

We present the first experimental demonstration of the ”optimal” and ”universal” quantum entangling process involving qubits encoded in the polarization (−→π ) of single photons. The structure of the ”quantum entangling machine” consists of the quantum injected optical parametric amplifier by which the contextual realization of the 1 → 2 universal quantum cloning and of the universal NOT (U-NOT...

A simple model of a two-mode non-resonant parametric amplifier is studied with special regard to non-classical features such as revivals and squeezing. The methods used apply for an arbitrary pump parameter. Detailed analytical and explicit expressions are given when the coupling of the two modes has an harmonic time-dependence. Despite its simplicity the model exhibits a very broad range of in...

We present an overview of the recent developments in nonlinear silicon photonics. There were significant advances in devices exploiting the ð2Þ and ð3Þ nonlinearities. Here, we discuss parametric amplification, wavelength conversion, supercontinuum generation, parametric oscillation, and frequency comb generation in siliconbased devices.