Author: Timothy John GrangerPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Reconfigurable Wavelength-switched Optical Networks for the Internet Core
Author: Timothy John GrangerReconfigurable Technology for Future Optical Access Networks
Author: She-Hwa YenPublisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 145
Book Description
Fiber-based access is recognized as the most promising technology for solving broadband bandwidth bottlenecks. Time division multiplexing passive optical networks (TDM-PONs) that are passive and non-reconfigurable are currently the most widely deployed type of fiber access networks. However, due to their passive nature, TDM-PONs faces several limitations such as inflexible service area coverage, lack of intelligence for control, and inability to counteract security attacks. In order to address the current limitations of optical access networks, we propose reconfigurable technologies for next generation PONs. Two novel reconfigurable technologies are proposed, analyzed, and experimentally evaluated. The first solution is a reconfigurable power-and wavelength- assignment technology based on a novel non-volatile, reconfiguration node. The proposed remote node can reconfigure the network to adapt it to varying degrees of deployment conditions and/or network attacks. Moreover, the proposed remote node incorporates a novel quasi-passive device that does not consume energy once it is reconfigured into a new latching state. Therefore, the proposed remote node has very low energy consumption and does not require local power supply to preserve the passive character of the distribution network. In particular, two novel quasi-passive optical power splitter technologies based on Micro-Electro-Mechanical Systems (MEMS) and transition metal oxide have been designed for the reconfigurable device. A simulation study shows the proposed reconfigurable device would outperform traditional passive splitter in terms of maximum number of supportable users under realistic deployment conditions. The second solution addresses the issue of reconfigurable network consolidation and infrastructure simplification. Current TDM-PONs suffers from limited reach and split-ratio. To enhance the performance in terms of service range and quality of service, reconfigurable network consolidation is a promising solution. It can also simplify the network and reduce cost. We propose the following novel reconfigurable technologies for consolidation and simplification of next generation access networks: (1) Passive reach-extension technology for the drop section of optical access networks; (2) Sleep mode ONUs for energy saving; (3) Centrally managed optical signature that can monitor and protect the upstream link; and (4) Multi-rate burst mode receivers. These reconfigurable technologies can bring the intelligence into optical access networks and improve the efficiency and flexibility for next generation optical access networks.
Optically Amplified WDM Networks
Author: John ZyskindPublisher: Academic Press
ISBN: 0080960987
Category : Technology & Engineering
Languages : en
Pages : 483
Book Description
With the advent of wavelength routing and dynamic, reconfigurable optical networks, new demands are being made in the design and operation of optical amplifiers. This book provides, for the first time, a comprehensive review of optical amplifier technology in the context of these recent advances in the field. It demonstrates how to manage the trade-offs between amplifier design, network architecture and system management and operation. The book provides an overview of optical amplifiers and reconfigurable networks before examining in greater detail the issues of importance to network operators and equipment manufacturers, including 40G and 100G transmission. Optical amplifier design is fully considered, focusing on fundamentals, design solutions and amplifier performance limitations. Finally, the book discusses other emerging applications for optical amplifiers such as optical networks for high data rate systems, free space systems, long single span links and optical digital networks. This book will be of great value to R&D engineers, network and systems engineers, telecommunications service providers, component suppliers, industry analysts, network operators, postgraduate students, academics and anyone seeking to understand emerging trends in optical networks and the consequent changes in optical amplifier design, features and applications. Provides an in depth and focused review of the new reconfigurable network architecture and its impact on optical amplifiers Addresses 40G and 100G transmission and networking Written by experts in the field with deep technical knowledge and practical experience of commercial practice and concerns
Lambdapon
Author: Vivek TandonRole for Reconfigurable Wavelength Multiplexed Networks and Links in Future Optical Networks
Author: P. J. ChidgeyPublisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Network design, implementation and paths to exploiting optical fibre bandwidth are reviewed. Experimental network measurements on installed fibre are reported using fibre amplifiers and optical switches.
Optical Switching and Networking Handbook
Author: Regis "Bud" J. BatesPublisher: McGraw Hill Professional
ISBN: 007150186X
Category : Technology & Engineering
Languages : en
Pages : 322
Book Description
*Bestselling author Regis "Bud" Bates utilizes a market-driven, "business needs" approach to optical communications *Provides a concise analysis of systems and options without being overly technical and translates complicated jargon into clear business terms *Includes applications and implementation of technologies, regulatory and standards developments, product photos and descriptions, generic pricing, and business models
Design and Analysis of Wavelength-routed Optical Networks
Author: Dhritiman BanerjeeMultiwavelength Optical Networks
Author: Thomas E. SternPublisher: Cambridge University Press
ISBN: 0521881390
Category : Computers
Languages : en
Pages : 1005
Book Description
Second edition of the acclaimed Multiwavelength Optical Networks, describing architectures, enabling technologies, and analytical tools.
Wavelength Converters in Optical Networks
Author: K R VenugopalPublisher: I K International Pvt Ltd
ISBN: 8189866281
Category : Juvenile Nonfiction
Languages : en
Pages : 205
Book Description
The first generation networks built before the emergence of fiber optics and the second generation networks which used fiber as a replacement for copper links in Local Area network (LAN), Metropolitan Area Network (MAN) and Wide Area Network (WAN) are not adequate to meet the emerging integrated demands of the communication applications. Huge bandwidth must be provided to support applications such as super-computer interconnect, videoconferencing, etc., co-existing with smaller bandwidth requirements of data, audio, and many other applications for thousands of end-users. Wavelength Converters in Optical Networks deals with the third generation networks that use Wavelength Division Multiplexing (WDM), wavelength routed optical networking technology. This technology can efficiently utilize the enormous bandwidth of the optical fiber and has been able to meet the emerging integrated demands of the communication applications.
Reconfigurable Optical Networks and Multi-photon Quantum Cryptography
Author: Linsen WuPublisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages :
Book Description
Internet traffic keeps increasing in the past years and it is dominated by various multimedia applications with different requirements. Due to the explosion of information, traditional network architecture cannot meet the requirement of the traffic trends. Dense Wavelength Division Multiplexing (DWDM) technology has greatly increased the bandwidth of the optical network by merging hundreds of wavelengths into a single fiber. However, the traditional topology of the network restricts the development of advanced network technologies. Software-Defined Optical Networking (SDON), inspired by Software-Defined Networking (SDN), is a promising solution for the problem. In this dissertation, self-resilient reconfigurable optical network is proposed to support multiple switching modes in SDON. A reliable retransmission mathematical model is developed in the proposed network to evaluate the delay of the transmission and the buffer occupancy in the router. Besides, network security becomes more and more important in information transmission. Classical cryptography is based on the complexity of computation. With the increasing power of supercomputers and the development of quantum computers, classical cryptography is becoming more and more vulnerable. Compared to classical cryptography, quantum cryptography is based on the law of physics, and in the only means with provable security. This dissertation is the first to analyze the impact of noise as well as practical attenuated laser sources on multi-photon quantum cryptography protocols. The results provide insights in developing practical quantum cryptography hardware systems.