This paper reviews optical injection locking (OIL) of semiconductor lasers and its application
in optical communications and signal processing. Despite complex OIL dynamics, we …

The prospects for using fiber optical parametric amplifiers (OPAs) in optical communication
systems are reviewed. Phase‐insensitive amplifiers (PIAs) and phase‐sensitive amplifiers …

One of the main reasons why nonlinear-optical signal processing (regeneration, logic, etc.)
has not yet become a practical alternative to electronic processing is that the all-optical …

The ability to process optical signals without passing into the electrical domain has always
attracted the attention of the research community. Processing photons by photons unfolds …

Owing to advances in fabrication technology and device design, semiconductor optical
amplifiers (SOAs) are evolving as a promising candidate for future optical coherent …

This tutorial highlights challenges and opportunities in achieving efficient flexible optical
networks. Optical signal processing may potentially increase network flexibility because of …

The capacity and reach of long-haul fiber optical communication systems is limited by in-line
amplifier noise and fiber nonlinearities. Phase-sensitive amplifiers add 6 dB less noise than …

Optical localized states are usually defined as self-localized bistable packets of light, which
exist as independently controllable optical intensity pulses either in the longitudinal or …

Quantum-enhanced measurements can provide information about the properties of a
physical system with sensitivities beyond what is fundamentally possible with conventional …

Optical parametric amplifiers rely on second-order susceptibility (three-wave mixing) or third-
order susceptibility (four-wave mixing) in a nonlinear process where the energy of incoming …