As optical amplifiers have opened new perspectives for optical communication systems with
ultrahigh capacities and long-haul transmission distances (more than 1 Tb/s over 10 000 …

Fiber-based all-optical signal regeneration techniques are reviewed. In the first half of the
paper, amplitude regeneration schemes for ON-OFF keying signals using self-phase …

Unique dispersion characteristics and enhanced nonlinearity make the small-core photonic
crystal fiber (PCF) an ideal candidate for nonlinear optical devices to telecommunication …

Resha** of return-to-zero differential-phase-shift keying (RZ-DPSK) signals by fiber-based
all-optical 2R regenerators is numerically studied. Diffusion of the phase of the signal in the …

We derive, for a binary antipodal input signal, the optimal uncoded regenerator function
when the channels at the ingress and at the egress of the regenerator are degraded by …

Optimization of an all-optical 2R regenerator at 40 Gb/s that is based on self-phase
modulation in fiber is presented. The effect of fiber length, launch power into the fiber, and …

All-optical data processing is expected to play a major role in future optical communications.
The fiber nonlinear optical loop mirror (NOLM) is a valuable tool in optical signal processing …

Performance of fiber-based optical signal regenerators consisting of a synchronous
amplitude modulator, a highly nonlinear fiber, and an optical bandpass filter is analyzed …

An efficient wavelength-conversion-free all-optical 2R regenerator is proposed. The
regeneration is based on power-dependent spectrum broadening in normal-dispersion fiber …

We propose a novel all-optical multichannel limiter that uses spectrally filtered optical
solitons. The periodic nonlinear optical fiber described herein can suppress the interchannel …