Optical Burst Switching (OBS) is a new paradigm for an all-optical Internet. It combines the best features of Optical Circuit Switching (OCS) and Optical Packet Switching (OPS) while avoiding the main problems associated with those networks. Namely, it offers good granularity, but its hardware requirements are lower than those of OPS. In a backbone network, low loss ratio is of particular impor...

All optical networks and switches are envisioned as a solution to the increasing complexity and power consumption of today’s communication networks who rely on optical fibers for the transmission of information but use electronics at the connecting points on the network (nodes) to perform the switching operation. All optical networks, in contrast, will use simple signalling methods to trigger a...

This paper studies the problems of dedicating routes and scheduling transmissions in optical networks. In optical networks, the vast bandwidth available in an optical ber is utilized by partitioning it into several channels, each at a diierent optical wavelength. A connection between two nodes is assigned a speciic wavelength, with the constraint that no two connections sharing a link in the ne...

Optical networking is the cornerstone of the Future Internet as it provides the physical infrastructure of the core backbone networks. Recent developments have enabled much better quality of service/experience for the end users, enabled through the much higher capacities that can be supported. Furthermore, optical networking developments facilitate the reduction of complexity of operations at t...

This paper studies the problems of dedicating routes to connections in optical networks. In optical networks, the vast bandwidth available in an optical ber is utilized by partitioning it into several channels, each at a diierent optical wavelength. A connection between two nodes is assigned a speciic wavelength, with the constraint that no two connections sharing a link in the network can be a...

This paper describes a new tool for gathering (performance) data from optical network devices. During the last few years many National Research and Education Networks (NRENs) have deployed hybrid networks. These hybrid networks consist of a traditional routed IP part and an innovative optical part. On the optical part lightpath services are offered. These lightpaths are high speed (up to 10 Gbp...

Attention is called to the analogy between linear optical systems and linear two-port electrical networks. For both, the transformation of a pair of oscillating quantities between input and output is of interest. The mapping of polarization by an optical system and of impedance (admittance) by a two-port network is described by a bilinear transformation. Therefore for each transfer property of ...

Optical Packet-switched Networks C. C. Lee, L. F. K. Lui, P. K. A. Wai, and H. Y. Tam Photonics Research Centre and Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Phone: +852 2766-4693, fax: +852 2362-8439, email: [email protected] Photonics Research Centre and Department of Electrical Engineering, The Hong Kong Polytechni...

Applications of complex valued neural networks to optical signal processing using phase sensitive detection schemes are proposed and discussed In optical information processing systems the advantages of complex valued neural networks are realized directly utilizing physical phenomena of lightwave and phase sensitive optical detection In the proposed system the summation and nonlinear transform ...

Transparent optical networks are capable of providing a flexible and dynamic data transport via transparency regarding both data rate and format of transmitted signals achieved by implementing data transmission and forwarding in the optical domain. While supporting all-optical end-to-end paths, transparent optical networks are in principle suitable to integrate end-to-end quantum cryptography. ...