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ECOC Workshops
Below you can find the list of  workshops which will take place during ECOC 2007 on Sunday, September 16.

Registration Click here to proceed with ECOC 2007 On-line Registration 
The workshop participation is included in the registration for ECOC. For workshop-only participation a special one-day ticket is available for 80 Euros prior to 10th August 2007 and for 100 Euros afterwards. Further details are available on the ECOC 2007 website: 


ECOC 2007 Workshop Overview
Saturday September 15
16:00 - 18:00 Registration
Sunday September 16
08:00 - 18:00 Registration
  Hall 3 Roofgarden Hall 4/5 Hall 7 Hall 8 Hall 9 Hall 10
09:00 - 13:00     Workshop 1 Workshop 2 Workshop 3 Workshop 4  
      100 Gigabit Ethernet for Carrier-Class Transport Networks  Quantum Dots : The Ultimate Frontier  Global Interoperability in Multi-Domain and Multi-Layer ASON/GMPLS Networks Future Internet Design  
13:00 - 14:00 Lunch break
14:00 - 18:00     Workshop 5 Workshop 6 Workshop 7 Workshop 8 Workshop 9
      Electronic Signal Processing for Transmission Impairment Mitigation: Future Challenges Silicon Photonics in Telecom/Datacom: from Basic Research to Industrial Deployment Networks for IT: A new Opportunity for Optical Network Technologies Operation Expenditures (OpEx) Studies High Data Rate Transmission (³40 Gbit/s) on Legacy Networks’ Fibre Infrastructure with Significant PMD 
18:00 - 19:30 Get Together Reception ( ICC Roofgarden)


Participation in the Workshops requires registration. For participants of the conference the workshops are included in the registration fee. For workshop-only participation a special One-Day Ticket for Workshop is available. For registration information please click here.


 - In addition, on September 14/15 there will be the European Semiconductor Laser Workshop. For details  please click here.


The workshop chairs are fully responsibl e for the organisation of the workshops. Please contact the workshop chairs directly to propose contributions to a workshop.




Sunday, September 16 – 09:00 - 13:00


Workshop 1                                                                                                                        Hall 4/5

100 Gigabit Ethernet for Carrier-Class Transport Networks

Chairs: Marcus Duelk, Alcatel-Lucent, USA, Andreas Kirstädter, Nokia Siemens Networks, Germany


Workshop Objective:

High-Speed Ethernet is continuing to spread from the original LAN environment into telecom and cable MSO service providers' networks. Next-generation 100 Gbps Ethernet (100 GbE) is envisioned to be indeed not a typical network interface for desktops or servers but rather an infrastructure interface in data centers or provider aggregation and content delivery networks. However, the requirements

in carrier Metro networks are very different to those found in local area networks. This workshop covers various aspects of 100 GbE in carrier-class transport networks and is divided into three sessions:

  • Carrier Networks – covering architectures and requirements of carrier networks, including incumbent carriers and the transitioning of their networks from TDM to more data-aware IP/Ethernet networks, outlining the differences between Ethernet networks in the enterprise and provider world, the latter using network protocols like Q-in-Q, PBB-TE or MPLS
  • 100G Carrier Ethernet Switches – covering aspects of how to build carrier-grade switches and routers and what the challenges are scaling them to Terabit-per-second capacity with 100 Gb/s line cards
  • 100G Transport for WDM Carrier Networks – covering the transport requirements in provider networks like Optical Transport Network (G.709) versus Ethernet transport, parallel versus serial transport, and what the challenges and techniques are to realize high-speed serial WDM transport.



Workshop 2                                                                                                                           Hall 7

Quantum Dots : The Ultimate Frontier

Chairs: Dieter Bimberg, Technische Universität Berlin, Germany Marc Ilegems, EPFL Lausanne, Switzerland Richard Penty, University of Cambridge, United-Kingdom

Semiconductor Quantum Dots represent the ultimate step in size reduction in semiconductor devices, bringing novel functionalities and promises for dramatic improvements to a range of photonic active devices such as edge emitting and vertical cavity lasers, optical amplifiers and detectors.

Quantum dots consist of nanoscale clusters of semiconductor material embedded in a wider bandgap matrix. The extension of a QD is in all three dimensions of space is ideally shorter than the de

Broglie wavelength of a charge carrier. Such strong carrier localization leads to a discrete atom-like, instead of a continuous density of states for both electrons and holes, a paradigm change for a semiconductor structure. In addition, the strong confinement leads to high radiative efficiency by limiting the carrier diffusion to nonradiative centers.

The optical and electronic properties of QDs are to a large extent composition, size and geometry tunable. Novel photonic devices based either on either single or high densities of QDs have been

developed using many different material combinations covering a wide range of wavelengths and fields of application. Among them are Single Photon Emitters for quantum information processing,

ultrahigh speed VCSELs for Terabit/s communications, and high speed Semiconductor Optical Amplifiers for the 100 Gbit/s Ethernet.

This workshop is sponsored by the EU network



Chair: Marc Ilegems, EPFL Lausanne


09:00 - 09:10 Opening

Dieter Bimberg, TU Berlin


09:10 - 09:35 Applications of Quantum Dot Semiconductor Optical Amplifiers at 1.3 μm

Jörg Leuthold, Uni Karlsruhe


09:35 - 10:00 Recent Progress in Quantum Dot Semiconductor Amplifiers at Long


Tomoyuki Akiyama, Fujitsu Tokyo


10:00 - 10:25 Quantum Dash Based Mode-Locked Lasers Emitting at 1.55 μm

Abderrahim Ramdane, CNRS Marcoussis


10:25 - 10:50 Progress and Challenges of GalnNasSb for Optical Communication

James Harris, Uni Stanford


10:50 - 11:20 Coffee break

Chair: Richard Penty, University Cambridge


11:20 - 11:45 High Speed VCSELs for Optical Interconnects

Nikolai Ledentsov, TU Berlin


11:45 - 12:10 Qubits, Quantum Repeaters and Cryptography

Mark Fox, Uni Sheffield


12:10 - 12:35 Quantum Dot Devices for Quantum Communication

Andrew Shields, Toshiba Cambridge


12:35 - 13:00 Single Photon Emitters and Detectors for Quantum Communication

Andrea Fiore, EPFL Lausanne


13:00 Closing




Workshop 3                                                                                                                           Hall 8

Global Interoperability in Multi-Domain and Multi-Layer ASON/GMPLS Networks

Jointly sponsored by the Optical Internetworking Forum (OIF, www.oiforum.com) and MUPBED (www.ist-mupbed.eu)

Chairs: Hans-Martin Foisel, Deutsche Telekom, Germany Vishnu Shukla, Verizon, USA

Carrier networks are challenged by continuous traffic growth, the evolution of high bandwidth demanding data applications and increasing customer requests for on-demand network bandwidth services. The goal of introduction of intelligent control plane mechanisms in -multi vendor and multi-domain network environments is two-fold:

Simplification of service provisioning and management and the opportunities to introduce new end-to-end bandwidth-on-demand services. The most optimal solution for such services in the current

heterogeneous environments is standard based implementations. To ensure this also on practical level, the Optical Internetworking Forum (OIF, www.oiforum.com) has organised and carried out several interoperability tests and evaluations of prototype implementations of its Implementation Agreements. This workshop will cover main aspects and results of the OIF Worldwide Interoperability Demonstration 2007, on On-Demand Ethernet Services over multiple ASON/GMPLS Network Domains, with speakers from Asia, North America and Europe.

Closely related to this workshop will be the:

  • Live demonstration of the interoperability results and the global test network at the OIF ECOC2007 exhibition, booth 17078
  • Lab tours to Deutsche Telekom premises in Berlin, where a more detailed demonstration of the ASON/GMPLS functions of the OIF Worldwide Test Network and the MUPBED (www.ist-mupbed.eu) European scale test network will be shown, replicating the "look and feel" of a real carrier environment.




09:00 - 09:05 Welcome and Introduction



09:05 - 09:35 OIF Worldwide Interoperability Demonstration 2007 – Ethernet On-Demand Services enabled by OIF UNI and E-NNI Functions

Jim Jones


09:35 - 10:05 OIF Worldwide Interoperability Demonstration 2007 – Results and Findings of the Control Plane Interoperability Test

Jonathan Sadler


10:05 - 10:35 OIF Worldwide Interoperability Demonstration 2007 – Consideration from a Carrier’s Perspective

Vishnu Shukla


10:35 - 11:00 Coffee Break


11:00 - 11:30 GMPLS – Current Status of Standardization Work

Tomohiro Otani


11:30 - 12:00 ASON – Current Status of Standardization Work

Bernd Zeuner


12:00 - 12:30 Application of ASON Multi-Domain Architecture to Internet2

Lyndon Ong


12:30 - 13:00 ASON/GMPLS based Interoperability and Interworking Solutions in the European MUPBED Multi-Domain and Multi-Layer Test Network

Jan Spaeth


13:00 End




Workshop 4                                                                                                                           Hall 9

Future Internet Design

Chairs: Phuoc Tran-Gia, Universität Würzburg, Germany Michael Dueser, T-Systems, Germany

Michael Menth, Universität Würzburg, Germany

This workshop brings together researchers in the area of future Internet design, also referred to as ‘Clean Slate Design’, and researchers in the area of optical communications, to raise mutual awareness, explore areas of joint interest, and stimulate discussion on the directions of future network research. The progress in the different fields of optical communications will continue to be a key driver for the architectural changes in any future network design. Both communities will need to closely cooperate to make the future Internet happen. The success story of optics – any chance to be continued in the 21st century?




09:00 - 09:15 Welcome and Introduction



09:15 - 09:45 Network Design – What (not) to Expect from the Future Internet

Prof. A.Odlyzko


09:45 - 10:15 Intelligent and Agile Optical Networking for the Future Internet

Prof. Ben Yoo


10:15 - 10:45 Challenges in Experimental Testbed Design for the Future Internet

Anastasius Gavras


10:45 - 11:15 Coffee Break


11:15 - 11:45 Scheduling in Optics is the Wrong Answer for Fine-Grained Resource Sharing

Bob Briscoe


11:45 - 12.15 Future Internet Transport Layer – Heading towards a Post-TCP Era?

Michael Scharf


12:15 - 12:45 Future Internet Design – The Operator’s Vision

Fabrice Guillemin


12:45 - 13:00 Wrap-Up and Closing



Sunday, September 16 – 14:00 - 18:00


Workshop 5                                                                                                                        Hall 4/5

Electronic signal processing for transmission impairment mitigation: future challenges

Chairs: Robert Killey, University College London, UK Jörg-Peter Elbers, ADVA AG Optical Networking, DE

Recent advances in high speed electronic signal processing technology have led to the development of low cost devices for impairment mitigation in metro and long-haul transmission systems. There are

still a number of open questions concerning the future directions of electronic equalization (EE) technology. These include the identification of the best performing and lowest cost solutions (e.g. electronic predistortion, decision feedback equalization, maximum likelihood sequence estimation, subcarrier multiplexing, and coherent detection with EE), questions concerning the optimum combination of electronic and optical compensation techniques, the impact of fibre nonlinearity on the performance of WDM systems employing EE and the potential of electronic signal processing for systems operating at channel rates of 40 Gbit/s and above. This workshop will address these issues, assessing the future role of high speed electronic processing in the next generation of optical networks.



Chair: R. I. Killey, University College London


14:00 - 14:10 Overview on electronic distortion mitigation

H. Bülow, Alcatel-Lucent


14:10 - 14:30 Moderate complexity equalizers for long-haul reach

N. Alic, University of California San Diego


14:30 - 14:50 Recent progress and future challenges for MLSE optical receivers

P. Poggiolini, Politecnico di Torino


14:50 - 15:10 Performance improvement of direct detection receivers by means of electronic post processing

H. Griesser, Ericsson


15:10 - 15:30 Digital Coherent Equalization for Robust 111-Gb/s transmission

Dirk van der Borne, Technical University of Eindhoven/Siemens


15:30 - 16:00 Coffee Break

Chair: J. -P. Elbers, ADVA AG Optical Networking


16:00 - 16:20 Coherent 40 Gbit/s transmission and prospects for 100 Gbit/s

K. Roberts, Nortel Networks


16:20 - 16:40 Realtime coherent QPSK transmission: comparison of two carrier phase recovery


S. Hoffmann, R. Peveling, O. Adamczyk, T. Pfau, R. Noé, University of Paderborn


16:40 - 17:00 Compensation of chromatic dispersion using coherent modulation and demodulation

P. M. Watts, S.J. Savory, Y. Benlachtar, R. Waegemans, V. Mikhailov, P. Bayvel, University College London

17:00 - 17:20 Nonlinearity and its compensation in optical-OFDM systems

A. J. Lowery, Monash University


17:20 - 17:40 Coherent optical MIMO-OFDM for optical fibre communication systems

W. Shieh, University of Melbourne


17:40 - 17:50 Sensitivity and distortion tolerance of optical OFDM

F. Buchali, Alcatel-Lucent


17:50 - 18:00 Discussion




Workshop 6                                                                                                                           Hall 7

Silicon Photonics in Telecom/Datacom: from Basic Research to Industrial Deployment

Chairs: Roel Baets, Ghent University - IMEC, Belgium Tom Pearsall, European Photonics Industry Consortium (EPIC), France Graham Reed, University of Surrey, UK

Silicon photonics is rapidly gaining importance as a generic technology platform for a wide range of applications in telecom, datacom and sensing. It allows to implement optoelectronic functions in or

above silicon through the use of wafer-scale technologies normally used for advanced CMOS-processing. Thereby it offers the prospect of using an existing industrial technology base for the manufacturing of advanced photonic components at low cost. In recent years there has been a plethora of scientific breakthroughs in this field, including the demonstration of ultra-compact passive optical functions, high speed optical modulators and detectors, silicon and silicon-compatible lasers, all-optical signal processing functions, integration with CMOS-circuitry etc.

This workshop aims to provide insight in the potential of this technology for the field of telecom and datacom. Both short- and longterm perspectives will be covered by a number of distinguished

experts. The issue of access to CMOS fabs for prototyping and manufacturing of photonic components will also be addressed. The workshop will end with a panel discussion in which the experts and the audience will discuss the prospects and the challenges for the years to come in this dynamic field.

The workshop is co-organized by the European Network of Excellence ePIXnet (www.epixnet.org )




14.00-14:10 Opening

Roel Baets, Ghent University-IMEC


14:10 - 14:40 Why Silicon Photonics matters

Thomas Koch, Lehigh University


14:40 - 15:05 What Silicon can do for Electro-optical Modulation and all-optical Functionality at very high Bitrate

Michal Lipson, Cornell University


15:05 - 15:30 Making a Business out of Silicon Photonics

Jean-Louis Malinge, Kotura


15:30 - 15:55 Towards Foundries for Silicon Photonics

Pieter Dumon, Ghent University-IMEC


15:55 - 16:25 Coffee Break


16:25 - 16:50 The best of two Worlds: Hybrid III-V/Silicon Integration for advanced Sources and


John Bowers, UC Santa Barbara


16:50 - 17:15 Heterogeneous Integration of III-V Sources and Detectors with, Silicon Photonic Wires by Wafer-scale CMOS-compatible Processes

Jean-Marc Fedeli, CEA-LETI


17:15 - 17:40 Pirelli's Roadmap on Silicon Photonics

Marco Romagnoli, S. Ghidini, Pirelli


17:40 - 18:00 Discussion




Workshop 7                                                                                                                           Hall 8

Networks for IT: A new Opportunity for Optical Network Technologies

Jointly sponsored by e-Photon/ONe+ (www.e-photon-one.org) and PHOSPHORUS (www.ist-phosphorus.org)

Chair: Dimitra Simeonidou, University of Essex, Co-chairs: Mario Pickavet, Ghent University - IBBT,

Anna Tzanakaki, Athens Information Technology, Ioannis Tomkos, Athens Information Technology,

Networks increasingly deal with managing and adapting distributed computing and associated data management resources (PCs, servers, supercomputers, clusters) and storage systems.

Due to potentially very high aggregated demands for networked IT, a paradigm shift in the optical network architecture may be needed to enable dynamic and distributed IT services at large scale.

This workshop offers a unique opportunity for optical network researchers and practitioners to exchange ideas and experiences on problems, challenges, solutions and future research and development issues concerning the deployment of optical networks for providing IT services. In addition to invited paper presentations, the workshop provides an intimate setting for discussion and debate.



Chair: Anna Tzanakaki


14:00 - 14:10 Workshop opening

Dimitra Simeonidou, University of Essex


14:10 - 14:35 Orchestrating optimally IT and network resource allocations for stringent distributed applications over ultrahigh bit rate transmission networks

Dominique Verchere, Alcatel-Lucent, France


14:35 - 15:00 The PHOSPHORUS project – new face of bandwidth on demand services

Artur Binczewski, PSNC, Polland


15:00 - 15:45 EnLIGHTened and G-lambda: reserving interdomain lambda and compute resources across US and Japan

Tomohiro Kudoh, AIST, Japan, Gigi Karmous Edwards, MCNC, USA


15:45 - 16:10 Coffee Break


Chair: Ioannis Tomkos

16:10 - 16:35 New requirements coming from entertainment, media and digital content for optical networks and control planes

Peter Tomsu, Cisco Systems, Europe


16:35 - 17:00 Resource virtualization and service abstraction for network and non-network resources

Piero Castoldi, SSSUP, Italy


17:00 - 17:25 SIP-based service virtualization for future IT services and applications over high speed optical networks

Franco Callegati, University of Bologna, Italy


17:25 - 17:50 Task scheduling in optical grid networks; A 3TNET approach

Wei Guo, Shanghai Jiao Tong University, China


17:50 - 18:00 Closing remarks

Mario Pickavet, Ghent University




Workshop 8                                                                                                                           Hall 9

Operation Expenditures (OpEx) Studies

Chairs: Carmen Mas Machuca, Munich University of Technology Monika Jaeger, T-Systems

Sofie Verbrugge, Ghent University - IBBT

This workshop brings together researchers in the area of OpEx modeling and evaluation. Network operators have realized the high impact that OpEx has on the overall cost of their networks. To date,

most of the existing studies have been focused on the Capital Expenditures (CapEx) of a certain technology, which are related to the network dimensioning and design. But nowadays, the interest is

focused on OpEx and different challenges have been encountered such as for example how to model the OpEx factors, which are the most relevant factors, which is the impact that new control and management capabilities have on OpEx.




14:00 - 14:20 Welcome and Introduction

M. Jaeger


14:20 - 14:40 Enabler of Cost-Efficient Network Operation

Alex Vukovic


14:40 - 15:00 Extending operational models to perform micro optimizations

K. Casier, L. Van Halewyck, S. Verbrugge, D. Colle, M. Pickavet, P. Demeester


15:00 - 15:20 Modeling of OpEx in network and service lifecycles

Carmen Mas, Oyvind Moe, Monika Jaeger


15:20 - 15:40 Characterizing the CapEx and OpEx Tradeoffs in Next Generation Fiber-to-the-Home Networks

Thomas Rand Nash, Richard Roth, Rajev J. Ram, Randolph Kirchain


15:40 - 16:10 Coffee Break


16:10 - 16:30 OPEX modeling – a regulatory perspective

Gabriele Kulenkampff, Konrad Zoz


16:30 - 16:50 Increasing cost transparency by using process oriented OpEx modeling methods and standardized process frameworks

Nikolaus Konrad


16:50 - 17:10 The MOD-OPEX tool: methods and case studies

Bodo Jacobs, Sandra Priess


17:10 - 17:30 OpEx Benefits of Digital Optical Networks

Vijay Vusirikala, Serge Melle


17:30 - 18:00 Wrap-Up and Closing




Workshop 9                                                                                                                         Hall 10

High Data Rate Transmission (340 Gbit/s) on Legacy Networks Fibre Infrastructure with Significant PMD

Chairs: Peter Winzer, Alcatel Lucent Werner Weiershausen, Deutsche Telekom, T-Systems,

Realisation of PMD tolerant WDM systems is a major challenge since the development of first 40Gb/s systems end of the 90´s. Today the worldwide deployment of 40Gb/s interfaces has reached a certain volume, not least driven by next generation IP routers, thus increasing the pressure on carriers and system manufacturers to realize 40Gb/s backbone transport.

Since many network operators are using their legacy fibre infrastructure partly exhibiting significant PMD values, PMD tolerance is a key system parameter for the deployment of 40Gb/s based WDM.

Inherently tolerant advanced modulation formats, parallel channel transmission schemes, as well as optical and electrical compensators, are competing for market shares. Furthermore, solutions based

on coherent detection combined with equalizers are under development in many laboratories of universities, subsystem and system vendors.

This workshop wants to draw a bow from the innovation in components and subsystems to the network aspects and operators’ needs.