Electronic Interfaces for Optical Packet Switching and Routing

Advances in Wireless Technologies and Telecommunication

Optical packet switching is connectionless networking solution through which we can get high speed data transfer and optimum bandwidth utilization using wavelength division multiplexing technique. For realizing optical packet switching the numbers of optical packet switch architectures are available in market. In this chapter the authors discuss the overall development of optical packet switching; some recently published optical packet switch architectures are discussed in the chapter and a comparison is performed between the switches through loss, cost and buffer analysis.

Optical Transmission Systems and Equipment for WDM Networking II, 2003

Possible switching architectures, with Optically Programmable Logic Cells -OPLCs -will be reported in this paper. These basic units, previously employed by us for some other applications mainly in optical computing, will be employed as main elements to switch optical communications signals. The main aspect to be considered is that because the internal components of these cells have nonlinear behaviors, namely either pure bistable or SEED-like properties, several are the possibilities to be obtained. Moreover, because their properties are dependent, under certain condition, of the signal wavelength, they are apt to be employed in WDM systems and the final result will depend on the corresponding optical signal frequency. We will give special emphasis to the case where self-routing is achieved, namely to structures of the Batcher or Banyan type. In these cases, as it will be shown, there is the possibility to route any packet input to a certain direction according to its first bits. The number of possible outputs gives the number of bits needed to route signals. An advantage of this configuration is that a very versatile behavior may be allowed. The main one is the possibility to obtain configurations with different kinds of behavior, namely, Strictly Nonblocking, Wide-Sense Nonblocking or Rearrangeably Nonblocking as well as to eliminate switching conflicts at a certain intermediate stages.

… (IMOC), 2009 SBMO/IEEE MTT-S …, 2009

In this work we present optical switches based on acousto-optical (AO) and semiconductor amplifier (SOA) devices, implemented in photonic switching optical nodes. Two basic situations are highlighted. One, a fully operational optical packet/burst switching (OPS/OBS) distributed control optical node is presented, using AO switches, with complete input-to-output switching time of ~2µs, independent of packet/burst length. The other, a practical application for a centralized control situation is also presented, involving SOA devices, which have better performance and faster switching, with overall switching times of less than 200ns. Detailed operation and other applications are also considered.

IEEE Communications Magazine, 2003

Optical packet switching promises to bring the flexibility and cfficiency of the Internet t o transparcnt optical networking with bit rates extending beyond that currently available with electronic router technologies. New optical signal processing techniques have been demonstrated that enable routing at bit rates from 10 Gbis to beyond 40 Ghis. In this article we review these signal processing techniques and how all-optical wavelength converter technology can he used to implement packet switching functions. Specific approaches that utilize ultra-fast all-optical nonlinear fiber wavelength converters and monolithically integrated optical wavelength converters are discussed and research results prcsented.

As (1) above, but E-mail: [email protected] ABSTRACT The paper describes research progress in technologies and architectures that give hope to deliver truly transparent switching of optical packets. The importance of all-optical packet switching/routing for convergent next generation transport network and in particularly, for QoS packet transfer in core of future generation wireless networks is pointed out. Generic photonic packet switch/router architecture and its QoS possibilities as well as approach to optical packet format are studied in detail. Conditions for accurate performance modeling and computer simulation for any optical packet switch architecture are discussed. Optical components functionality modeling and optical switch/router simulation algorithms are presented as well.

2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM), 2010

DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. If the publication is distributed under the terms of Article 25fa of the Dutch Copyright Act, indicated by the "Taverne" license above, please follow below link for the End User Agreement:

Journal of Lightwave Technology, 2006

Proceedings of The IEEE, 1994

Photonic packet switches offer high speed, data rate and format transparency, and flexibility required by future computer communications and cell-based telecommunications networks. In this paper, we review experimental progress in state-of-the-art photonic packet switches with an emphasis on all-optical guided-wave systems. The term all-optical implies that the data portion of a packet remains in optical format from the source to

IEEE/LEOS Summer Topi All-Optical Networking: Existing and Emerging Architecture and Applications/Dynamic Enablers of Next-Generation Optical Communications Systems/Fast Optical Processing in Optical Transmission/VCSEL and Microcavity Lasers., 2002

In this talk we will review functions for optical packet switching and ultra-fast network functions that can be handled using all-optical signal processing technologies. We will review research results utilizing ultra-fast all-optical nonlinear fiber wavelength converters and InP integrated optical wavelength converters. Application to all-optical label swapping and WDM/OTDM networks will be discussed.

2009

This paper describes recent research activities and results in the area of photonic switching carried out within the framework of the EU-funded e-Photon/ONe+ network of excellence, Virtual Department on Optical Switching. Technology aspects of photonics in switching and, in particular, recent advances in wavelength conversion, ring resonators, and packet switching and processing subsystems are presented as the building blocks for the implementation of a high-performance router for the next-generation Internet.

2003

We present a novel design for an asynchronous optical packet switch. The architecture is GMPLS-compliant, DWDM-capable and fully scalable. The switch uses a novel in-line buffer design, based on parallel recirculating buffers. The buffers solve contention by statistical multiplexing, and can be configured to conserve packet order and prioritize traffic. The control system is based on a direct local lookup of the destination port and wavelength and traffic class using the packet label. Performance modeling indicates that the switch has excellent throughput with low latency and low packet loss.

IEEE Journal on Selected Areas in Communications

IEEE Journal on Selected …, 1998

This paper reviews the work carried out in the ACTS KEOPS (Keys to Optical Packet Switching) project, describing the results obtained to date. The main objective of the project is the definition, development, and assessment of optical packet switching and routing networks, capable of providing transparency to the payload bit rate, using optical packets of fixed duration and low bit rate headers in order to enable easier processing at the network/node interfaces. The feasibility of the KEOPS concept is assessed by modeling, laboratory experiments, and testbed implementation of optical packet switching nodes and network/node interfacing blocks, including a fully equipped demonstrator. The demonstration relies on advanced optoelectronic components, developed within the project, which are briefly described.