Optical computing and optical neural network have gained increasing attention in recent
years because of their potential advantages of parallel processing at the speed of light and …

The paper reviews the current status and designs of all‐optical gates. Various schemes with
and without semiconductor optical amplifiers are discussed and compared. The optical …

Internet-based communication has become a major field, with a user base that is expanding
day-by-day. The needs have overloaded the available bandwidth, and higher speed has …

We report on the novel all-optical generation of duobinary (DB) and alternate-mark-inversion
(AMI) modulation formats at 42.6 Gb/s from an input on-off keyed signal. The modulation …

A novel all‐optical modulation format conversion scheme from on‐off keying to quadrature
amplitude modulation (QAM) utilizing wavelength conversion in the semiconductor optical …

A type of all-optical logical gate based on two kinds of refractive index grating in azo-dye
doped polymer film is studied in this paper. Using interference recording method with two …

Over the years, the increased search and exchange of information lead to an increase of
traffic intensity in todays optical communication networks. Coherent communications, using …

Advanced modulation formats have become increasingly important as telecoms engineers
strive for improved tolerance to both linear and nonlinear fibre-based transmission …

This thesis details an experimental and simulation investigation of some novel all-optical
signal processing techniques for future optical communication networks. These all-optical …

Electronic signal processing systems currently employed at core internet routers require
huge amounts of power to operate and they may be unable to continue to satisfy consumer …