L3MATRIX second Press Release

The future of data centers at the OFC

At the international Optical Networking and Communication Conference OFC, experts from the tele- and datacommunication have been discussing optical innovations and visions for the future of the industry since 40 years. In addition to the companies Cisco, Google, and Microsoft, Fraunhofer IZM will present the next generation of data center infrastructure at the technical exhibition from March 3 to 7 in San Diego.

Full press release here

L3MATRIX Final Newsletter released

Welcome to the third edition of the L3MATRIX newsletter – ECOC 2018 Special Edition. For the Photonics Community September has been one of the distinguished months of the year due to the largest optical communication event in Europe: The European Conference and Exhibition on Optical Communication (ECOC).  This year’s ECOC in Rome, Italy from the 23th to the 27st of September 2018 is of particular importance for L3MATRIX since it gives us the opportunity to present proudly the highlights of the first half of the project.

This third Newsletter is dedicated to our project’s wide range of activities during ECOC 2018. L3MATRIX will be among the exhibitors at the conference and we will present the 6th International Symposium for Optical Interconnect in Data Centres on Wednesday the 26th.

We look forward to meeting you there!

L3MATRIX third Newsletter here

6th International Symposium for Optical Interconnect in Data Centres

International Symposium for Optical Interconnect in Data Centres

at the 44th European Conference on Optical Communication (ECOC 2018)

Date & Time: Wednesday 26 September, 9:00 – 17:00

Room: Iustina


More info on the venue here.

The focus of this symposium is the evolution of high-performance, low-energy and low-cost optical and photonic interconnect technologies for data communications. We intend to draw out and discuss the key technology enablers and inhibitors to widespread commercial proliferation of photonic interconnect in mega data centre environments and throughout the wider Internet of Things (IoT) all the way to the „Edge“, and how the optical interconnect community can collectively help to address these.

This technology evolution is already strongly reflected in the research, development and strategic activities of mainstream organisations in the data centre and broader IoT space and the emergence of a new technology eco-system.

The topics addressed will include passive and active embedded optical and photonic interconnect technologies for data centre and IoT including photonic integrated circuits (III-Vs, silicon, polymer, photonic crystals, plasmonics), optical circuit boards, optical transceivers and switches, sensors and the advanced data centre architectures, which these technologies enable.



08:30 Registration


Session 1: Enhanced Data Centre Architectures

09:00   Plenary Talk

09:15   Una Buckley, Dell
Title: „Dell EMC Perspectives: Optical Connectivity for Enterprise Data Centres“

09:30   Bert Offrein and Folkert Horst, IBM Zurich
Title: „Neuromorphic Systems and Photonic“

09:45   Kobi Hasharoni, Dust Photonics
Title: „Chip I/O Disaggregation: Co-packaging a two-dimensional SiP Optical Interconnect with a Switch ASIC“

10:00   Marco Fiorentino, HP Labs
Title: „Electrical and Optical Glass Interposer for the Packaging of Silicon Photonics Transceivers“

10:15   Hitesh Ballani, Microsoft UK
Title: „Optics for the Cloud: Opportunities and Challenges“


10:30 – 11:00  Coffee break


Session 2: Advances in Chip Level Integrated Optics and Photonics

11:00   Mark T. Wade, Ayar Labs
Title: „Monolithically Integrated Electronics-Photonics“

11:15   Kazuhiko Kurata, PETRA / AICore
Title: „Multimode commercial PIC transceivers“

11:30   Ronald Broeke, Bright Photonics
Title: „PIC design innovation with Nazca.“

11:45   Clint Schow, UCSB
Title: „Ultra-low power short-reach interconnects for 100G and beyond“

12:00   Shinji Matsuo, NTT
Title: „Membrane lasers and photonic crystal lasers on Si substrate for datacom and computercom applications“

12:15   Bogdan Sirbu, Fraunhofer IZM
Title: „L3MATRIX – Large Scale Silicon Photonics Matrix for Low Power and Low Cost Data Centers“


12:30 -13:30   Lunch break


Session 3: Advances in Board level Integrated Optics and Photonics

13:30   Hideyuki Nawata, Nissan Chemicals
Title: „Advanced polymer materials for PIC interconnect“

13:45   Marika Immonen, TTM Technologies
Title: „Embedded optical PCBs and substrates for PIC applications“

14:00   Jean-Marc Boucaud, STMicroelectronics
Title: „Electrical and Optical Glass Interposer for the Packaging of Silicon Photonics Transceivers“

14:15   Takaaki Ishigure, Keio University
Title: „Polymer Waveguide Enabling High-Density Board-Level and On-Chip Optical Wiring“

14:30   Hideyuki Nasu, Furukawa
Title: „1.3-Tb/s VCSEL-based On-Board Transceiver Module for High-Density Optical Interconnects“

14:45   Ségolène Olivier, CEA-LETI
Title: „COSMICC – CmOs Solutions for Mid-board Integrated transceivers with breakthrough Connectivity at ultra-low Cost“


15:00 – 15:30  Coffee break


Session 4: The Blue Sky

15:30   Theoni Alexoudi, Aristotle Univ. Thessaloniki
Title: „ICT-STREAMS – Silicon Photonics Transceiver and Routing technologies for High-End Multi-Socket Server Blades with Tb/s Throughput interconnect interfaces“

15:45   Elad Mentovich, MELLANOX
Title: „plaCMOS – Wafer-scale, CMOS integration of photonics, plasmonics and electronics devices for mass manufacturing 200Gb/s non-return-to-zero (NRZ) transceivers towards low-cost Terabit connectivity in Data Centers“

16:00   Marco Romagnoli, CNIT
Title: „TeraBOARD – High density scalable optically interconnected Tb/s Board“

16:15   Kostas Vyrsokinos, Aristotle Univ. Thessaloniki
Title: „MOICANA – Monolithic cointegration of QD-based InP on SiN as a versatile platform for the demonstration of high performance and low cost PIC transmitters“

16:30   Pierpaolo Boffi, Politecnico di Milano
Title: „PASSION – Photonic technologies for progrAmmable transmission and switching modular systems based on Scalable Spectrum/space aggregation for future agIle high capacity metrO Networks“

16:45   Rafael Jordan, Fraunhofer IZM
Title: „European Photonic Innovation Hub for Optical Interconnects – PHOXLAB“




Tolga Tekin (Fraunhofer IZM, Germany)
Richard Pitwon (Resolute Photonics, United Kingdom)
Nikos Pleros (AUTH, Greece)
Paraskevas Bakopoulos (Mellanox, Israel)


Sponsors for Symposium:

H2020-L3MATRIX and H2020-ICT-STREAMS and H2020-COSMICC and H2020-PASSION and H2020-TERABOARD projects are supporting and sponsoring the 6th International Symposium for Optical Interconnect in Data Centres.


Previous Symposia:

5th International Symposium for Optical Interconnect in Data Centres, Gothenburg

4rd Optical Interconnect in Data Centers Symposium, ECOC 2016, Düsseldorf

3rd Optical Interconnect in Data Centers Symposium, ECOC 2015, Valencia

2nd Optical Interconnect in Data Centers Symposium, ECOC 2014, Cannes

1st Optical Interconnect in Data Centers Symposium, Laser Optics Berlin 2014

L3MATRIX First Press Release

L3MATRIX – Silicon Photonics Switching Matrix for Large Scale Networks

L3MATRIX is an EU Horizon 2020 research project (grant number 688544) of 36 month duration (1 December 2015 – 30 November 2018) developing the next generation of data-centre infrastructure. Reducing the power consumption and minimizing the number of non-revenue generating devices such as switches and links would allow the operators to deploy more servers and storage elements thereby increasing the DC throughput and increasing the revenues.


Cloud storage and computing, big data analytics and social media are driving the need for higher bandwidth communications in data centres (DCs). Concurrently, disaggregation and virtualization trends in the data-centre are forcing the traffic to be between servers and storage elements in the east-west direction. These changes require massive switching capabilities from the discrete switch elements. However, the technology is rapidly reaching a limit. The result is a multi-layered DC topology with high power consumption and long latency.


The L3MATRIX project provides novel technological innovations in the fields of silicon photonics (SiP) and 3D device integration. The project will develop a novel SiP matrix with a scale larger than any similar device with more than 100 modulators on a single chip and will integrate embedded laser sources with a logic chip thus breaking the limitations on the bandwidth-distance product.


The main focus of the project is the design and heterogeneous/ hybrid integration on silicon of lasers and other optical devices for PIC-based high-performance and high-density modules. A novel approach will be used with embedded III-V sources on the SOI substrate which will eliminate the need to use an external light source for the modulators. L3MATRIX provides a new method of building switching elements that are both high radix and have an extended bandwidth of 25 Gb/s in single mode fibres and waveguides with low latency. The power consumption of DC networks built with these devices is 10-fold lower compared to the conventional technology. The outcome of this approach is that large networks, in the Pb/s scale can be built as a single stage, non-blocking network. The single mode nature of the SiP chip allows scaling the network to the 2000 m range required in modern DCs.


With a budget of 3 Million Euro over 3 years, the project brings together European leading companies, universities and research institutes with strong expertise and experience in the fields of silicon photonics, III-V materials and 3D device integration.

The consortium with 8 partners from 6 different EU member states and two associated countries (Switzerland and Israel) is led by Fraunhofer IZM (Berlin, Germany) as project coordinator, and Dust Photonics (Tel Aviv – Jaffa, Israel) as technological manager. Further partners include AMS AG (Graz, Austria), IBM Research (Zurich, Switzerland), Aristotelio Panepistimio Thessalonikis (Thessaloniki, Greece), Universitat Politecnica de Valencia (Valencia, Spain), BRIGHT Photonics BV (Eindhoven, Netherlands) and University College London (London, United Kingdom) (https://l3matrix.eu/).


The Fraunhofer Gesellschaft is the leading organization for applied research in Europe, with 60 Fraunhofer Institutes at over 40 locations throughout Germany. The Fraunhofer-Gesellschaft employs around 20,000 personnel and has a total annual research budget of EUR 1.8 billion. Some two thirds of this sum is generated through contract research on behalf of industry and publicly funded research projects. Branches in the USA and Asia promote international cooperation.


Downolad Press Release here.

L3MATRIX second newsletter released

Our Second L3MATRIX-Newsletter is now ready for download. We dedicated this newsletter as a special edition to the The European Conference and Exhibition on Optical Communication (ECOC) in Gothenborg, Sweden this year. ECOC Exhibition, the largest European optical communications event, is a key meeting place for those within the fibre optic communication technology industry.

L3MATRIX will be among the exhibitors at the conference and we will present the 5th International Symposium for Optical Interconnect in Data Centres on Tuesday the 19th of September 2017.

The document is available to download here