This paper reviews the recent progress of quantum-dot semiconductor optical amplifiers
developed as ultrawideband polarization-insensitive high-power amplifiers, high-speed …

Future bandwidth demand in optical communication and signal processing systems will
soon exceed 100 Gb s− 1 as is commonly forecasted from a throughput experience curve for …

Wireless, optical, and electronic networks continue to converge, prompting heavy research
into the interface between microwave electronics, ultrafast optics, and photonic …

Using first principles calculations based on density functional theory (DFT), the electronic
properties of SnO 2 bulk and thin films are studied. The electronic band structures and total …

A scheme to realize all-optical Boolean logic functions AND, XOR and NOT using
semiconductor optical amplifiers with quantum-dot active layers is studied. nonlinear …

Ultrafast gain dynamics in quantum-dot (QD) optical amplifiers has been studied. It was
found that there are at least three nonlinear processes, which are attributed to carrier …

Conversion efficiency to longer wavelengths in four-wave-mixing-based wavelength
conversion in optical semiconductor amplifiers is generally much lower than that in the …

Highly‐stacked InAs quantum dots (QDs) were successfully grown on InP (311) B substrates
using a novel strain‐compensation technique. The number of stacked layer was increased …

We investigate nonlinear carrier dynamics in a multiquantum-well semiconductor optical
amplifier (SOA) in the context of ultrafast all-optical logic. A rate-equation model is presented …

Using the effective mass approximation and a variational procedure, we have investigated
the nonlinear optical absorption coefficient and the relative refractive index changes …