English abstract
Current market trends are driving high-speed communications networks towards ever-greater bandwidth, speed and flexibility. The per user bandwidth demand has been accelerating rapidly due to many factors such as the huge increase in web applications and e-banking. It is currently accelerating by a factor of eight per year. This has increased motivation for the development of ultra-broadband systems based on photonic networking technologies.
Optical time division multiplexing (OTDM) and wavelength division multiplexing (WDM) are two main techniques that could be used to meet this demand.
This is because the wide bandwidth of photonic components combined with the flexibility of OTDM and WDM routing techniques, and the high-speed capabilities of optical devices such as optical gates and switches, optical wavelength converters, and fast multi-wavelength lasers, provides the potential of switched networks with several Terabits per second.
The main objective of this project is to study the characteristics of WDM and Ultrafast OTDM optical networks and present a comparison between the two technologies.
The main issues of the comparison are, management and control, In addition to this the scalability, regeneration, buffering, coding, and encryption. economical aspects are also addressed.
