The traffic flow in long-haul dense wavelength division multiplexing fiber networks has surpassed by far the traffic deliverability from/to the access network thus creating what is known as “access bottleneck”. This bottleneck was the result of two major factors, the inherent cost sensitivity of access networks that impedes deployment of new optical technology prior to cost maturity, and the la...

The concept of optical burst switching (OBS) aims to allow access to optical bandwidth in dense wavelength division multiplexed (DWDM) networks at fractions of the optical line rate to improve bandwidth utilization efficiency. This paper studies an alternative network architecture combining OBS with dynamic wavelength allocation under fast circuit switching to provide a scalable optical archite...

This article reviews international standardization activities on optical interfaces over the last four years. Standardization is the key to the cost-effective manufacture, purchase, and installation of largecapacity high-speed optical network elements. This article mainly focuses on the activities related to wavelength division multiplexing (WDM) interfaces in ITU-T (International Telecommunica...

Acknowledgements I would like to thank my advisor Dr. Ahmed El. Amawy for the ideas that led to this work, for his timely comments, guidance, support and patience throughout the course of this work. I thank Dr. Sukhamay Kundu and Dr. David Koppelman for being on my defense committee. I thank Stefan Pascu for assisting me with his ideas in developing the simulator. Last but not the least, I than...

We demonstrate conversion from 64 × 10 Gbit/s optical time-division multiplexed (OTDM) data to dense wavelength division multiplexed (DWDM) data with 25 GHz spacing. The conversion is achieved by time-domain optical Fourier transformation (OFT) based on four-wave mixing (FWM) in a 3.6 mm long silicon nanowire. A total of 40 out of 64 tributaries of a 64 × 10 Gbit/s OTDM-DPSK data signal are sim...

Multiplexing is a method by which multiple analog message signals or digital data streams, coming from different sources are combined into one signal over a shared medium. In this paper, we present an overview of different multiplexing techniques in bandwidth utilization. We focus on the three well-known multiplexing technique used in bandwidth utilization which are Frequency-Division Multiplex...

......Modern embedded, server, graphics, and network processors already include tens to hundreds of cores on a single die, and this number will continue to increase over the next decade. Corresponding increases in main memory bandwidth are also required, however, if the greater core count is to result in improved application performance. Projected enhancements of existing electrical DRAM interf...

Recent advances in fiber optics technology have enabled extremely highspeed transport of different forms of data, on multiple wavelengths of an optical fiber, using Dense Wavelength Division Multiplexing (DWDM). It has now become possible to deploy high-speed, multi-service networks using DWDM technology. Many transport network architectures that employ advanced fiber optic technology have been...