Fibre-optic communications systems have traditionally carried data using binary (on− off)
encoding of the light amplitude. However, next-generation systems will use both the …

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 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 …

Spontaneous emission noise limits the capacity and range of photonic communications
systems that use linear optical amplifiers. We consider here the question of phase detection …

With high-bandwidth and on-demand applications continuing to emerge, next-generation
core optical networks will likely require significant improvements in reconfigurability and …

Optical signal processing brings together various fields of optics and signal processing-
namely, nonlinear devices and processes, analog and digital signals, and advanced data …

The demand for increased bandwidth is ever present. Coherent technology coupled with
advanced modulation formats and digital signal processing is a key enabler for optical …

The drive for higher performance in optical fiber systems has renewed interest in coherent
detection. We review detection methods, including noncoherent, differentially coherent, and …

In principle, optical phase-sensitive amplifiers are known to be capable of realizing
noiseless amplification, as well as improving the signal-to-noise-ratio of optical links by 3 dB …

We present simple scaling rules to optimize the design of 2R optical regenerators relying on
Self-Phase Modulation in the normal dispersion regime and associated offset spectral …