We present a review of theoretical and experimental aspects of multiphoton quantum optics.
Multiphoton processes occur and are important for many aspects of matter–radiation …

We discuss a model comprising two coupled nonlinear oscillators (Kerr-like nonlinear
coupler) with one of them pumped by an external coherent excitation. Applying the method …

We discuss a system comprising two nonlinear (Kerr-like) oscillators coupled mutually by a
nonlinear interaction. The system is excited by an external coherent field that is resonant to …

Optical couplers employing evanescent waves play an important role in optics,
optoelectronics and photonics because they may be conveniently used in the switching of …

Schemes for optical-state truncation of two cavity modes are analysed. The systems, referred
to as the nonlinear quantum scissors devices, comprise two coupled nonlinear oscillators …

We show that the intracavity Kerr nonlinear coupler is a potential source of bright continuous
variable entangled light beams which are tunable and spatially separated. We use a …

Two nonlinear Kerr oscillators mutually coupled by parametric pumping are studied as a
source of states entangled in photon numbers. Temporal evolution of entanglement …

The intermodal entanglement in a two-channel symmetric nonlinear coupler, operated with
Kerr nonlinearity was investigated using the analytical method based on the Heisenberg …

In this work, we examine the quantum features of a multi-waveguide nonlinear coupler
exploiting the second-and third-order nonlinearities. The considered system contains four …

Possible squeezed states generated in a three-waveguide nonlinear coupler operating with
second harmonic generation is discussed. This study is carried out using two well-known …