Leibniz Institute for Innovative Microelectronics (IHP) is a public research institute located in Frankfurt (Oder) in Germany. IHP has a team of 240 R&D professionals with core competence in micro-electronics process technology, circuit design, and systems. As a public research institute and member of the Gottfried Wilhelm Leibniz Society, the core funding comes from the German Federal Government and the State Government of Brandenburg. The institute aims at establishing the region of East-Brandenburg as a high-tech region and to create jobs through innovation. Therefore IHP uses its R&D to enhance the competitiveness of German and European businesses and works closely with the Federal and State Governments to attract international companies to the region. IHP owns a 1000 square meters, class-1 clean room and pilot line with production-grade tool-set for 0.25 and 0.13 μm technologies and offers its CMOS and SiGe BiCMOS technologies for Multi Project Wafer service and low-volume prototyping to external customers. IHP is focussed on developing innovative solutions for wired and wireless communications and microelectronics. Its expertise ranges from system design, digital, analog and RF IC design to the development of 130nm to 250 nm SiGe BiCMOS and RFCMOS technologies and Si photonics. IHP has long years of experience in wireless systems research especially in RF circuit design, baseband/MAC processor design, and semiconductor processing technology. IHP has been involved in MUX/DEMUX design for 100Gbps long-range optical applications, 10Gbps and 40Gbps analog front ends for optical links (VCSEL/Modulator driver, TIA), analog-to digital converters up to 15Gsample/s and Digital-to-Analog converters up to 30GSample/s. IHP is or has been a partner in EU projects: PULSERS I and II, GALAXY, MIMAX, OMEGA, BOOM, HELIOS and others. It is acting as a coordinator in the GALAXY project. For details see:

U2T Photonics AG (U2T-DE) was founded in January 1998 as a spin-off company of the Heinrich-Hertz-Institute for Telecommunications Berlin GmbH (HHI). Our core competence is the development of ultrafast optoelectronic components for application fields like communications, optical networking, test&measurement and microwave transmission which require operation frequencies beyond 40 GHz. U2T has expert knowledge from device design & chip manufacturing to systems configurations and testing. U2T has a proven track record in development projects and transferring the results into high-performance products. Since 1998 U2T participated in about 10 projects partially funded by the EU, the German Ministry of Research and Education and the Berlin local government. Since these projects included close cooperation with research institutes U2T has expertise of conducting cooperative research. Based on the results of these projects, high-end OE components have been developed and introduced to the market. Examples are the high-speed waveguide integrated photodetectors with up to 100GHz bandwidth for T&M, photoreceivers for 40Gbit/s communication systems, balanced photodetectors for optical DPSK, and mode locked laser sources for OTDM experiments at bitrates up to 160Gbit/s. The successful commercialization of these achievements is proven by the design-in of the U2T photodetectors in optical test equipment by the top 3 T&M companies. In the recent years, several design wins in 40Gbit/s long-haul optical communication systems were achieved, strengthening the position of U2T in this market.

The Institute of Communication and Computer Systems (ICCS) is associated with the School of Electrical and Computer Engineering (SECE) of the National Technical University of Athens (NTUA). It was founded in 1989 in order to carry research and development activities in the field of telecommunications systems and computer systems. ICCS employs more than 500 researchers including SECE faculty staff, senior research scientists and PhD students. ICCS/NTUA will participate in GALACTICO with the Photonics Communications Research Laboratory (PCRL). PCRL was founded in 1995 as a research group of the School of Electrical and Computer Engineering, National Technical University of Athens. It is being lead by Prof. Hercules Avramopoulos and it currently members are 5 Senior Researchers and 9 PhD students. Its research activities focus on the design and implementation of photonic devices and subsystems for optical communication systems and data com applications, ranging from high capacity optical transmission studies, all-optical signal processing systems/subsystems to multi-wavelength sources for wavelength division multiplexing networks. PCRL is a fully equipped laboratory with a range of test and measurement systems and a large number of passive and active photonic devices. It has worldwide links and collaborations with other top research institutes and industrial research organizations and its activities are supported by industrial grants, national and EU funded research programs. PCRL has significant presence and a proven track record with successful participation and leadership in a number of European projects (ICT-PLATON, ICT-BOOM, ICT-APACHE, ICT-EUROFOS, ICT-BONE, CRAFT-MULTIWAVE, IST-LASAGNE, IST-MUFINS, IST-e-Photon/One, ESPRIT DO-ALL).

The Nanophotonics Technology Center (NTC) at Universidad Politecnica de Valencia (UPVLC) is a Silicon Nanophotonics facility in Spain. The NTC has been created as the hub for scientific research, technological development and innovation (R+D+I) in the field of advanced optical technologies and photonic systems for telecommunication and computing. Its mission is to generate new knowledge in silicon Nanophotonics as well as to bridge properly the science-to-industry gap by creating fabless companies around that benefit from such unique infrastructure. The NTC is composed by scientist and engineers from several academic research group in Spain. Skilled scientists and technician coming from the Agere Systems factory in Madrid, Pirelli Labs-Milano and Infineon have joined the NTC providing professional fabrication services. The NTC is supported by the Spanish Ministry of Science and Technology and the Valencian Regional Council. The NTC facility includes a 500 sqm clean room for 6 inches Si wafer processing that includes: lithography, dielectric and polySi deposition, thickness measurements, sputtering, etch and chemical cleans, ICP-RIE, RTA and full FMA lab. The NTC recently opened a new back end and assembly area that will provide various packaging processes as: flip-chip, bumping, wire-bonding, die-bonding, thermocompression, dicing, alignment and pigtailing, among others. Advanced 5-axis stations for optical characterization and performance test allow end-fire measurements of simultaneous transmission and reflection with high dynamic range and wide band. Optical transmission laboratory at the NTC is equipped with 44 Gbit/s PRBS/BER tester, 100 GHz Eye diagram tester, optical correlators and optical ps-pulsed sources, among others.

Nokia Siemens Networks (NSN) is a leading global enabler of communications services, providing a complete, well-balanced product portfolio of mobile and fixed network infrastructure solutions. The company comprises the former Networks Business Group of Nokia and the carrier-related businesses of Siemens. NSN Research, Technology & Platforms (RTP) unit participates in GALACTICO with the Transport Aggregation and Fixed Access (TAF) department. NSN Portugal S.A. represents the Portuguese branch of NSN and is a wholly owned NSN company. The Laboratory for research and testing supports both pure and applied research in several areas, such as next generation packet solutions, and advanced optical network solutions. NSN Portugal S.A. has acquired “Scholarship Shelter Institution” status from the Portuguese Ministry of Science, and hosts both MSc and PhD students working towards their degrees, under the close supervision of both national and international Universities. The ongoing research activities span the following major areas of research: • Data Transmission and Optical Networks • Protocols and Network Management for fixed and mobile applications NSN has significant presence and a proven track record with successful participation and leadership in a number of European projects of FP6, RACE, and ACTS.

Telecom Italia Lab (TILAB) is the Division of Telecom Italia devoted to Innovation Engineering and Testing: its mission is increasing the innovation of the Telecom Italia Group through the exploitation of its know-how and laboratories, along with the Group Business Units. The staff is represented by 1.600 people. In the Telecom Italia group, TILAB represents the Innovation environment adding to the consolidated experience and know-how the resources and engineering expertise for the development of mobile and fixed networks, and for testing activities. TILAB has been a participant from the beginning to the EU Framework Programmes, since the first ESPRIT pilot projects in 1983, and is continuing as one of the primary European collaborators in terms of both finance and number of projects. Co-operation with other EU and world operators mainly addresses themes involving interoperation of networks and services, service quality, assessment of service usability and network architectures. Solutions allowing a wider spread of services and economies of scale have become more and more important both for operators and manufacturers. Everyone taking part in the ICT scenario has to avoid the risk of investing considerable amounts of development costs without the guarantee that the developed products and services are based on principles shared by the other main actors in the ICT world. This is the incentive behind TILAB's consistent participation in the main standardisation bodies and interest groups formed by TLC operators and manufacturers. TILAB has been involved in about 30 IST Projects in FP6 and is currently involved in 7 ICT Projects in FP7. TILAB is active in several standardisation bodies, such as ETSI, FSAN, IETF, ISO/JTC1/MPEG, ITU-T, Parlay, OIF, SIP Forum, TM Forum, UMTS Forum, W3C, 3G.IP, 3GPP.

Constelex Technology Enablers LTD (CONSTELEX) is a privately-held SME established in September 2009 by PhD holders with world-leading track record in the photonics R&D field. The company’s mission is to offer advanced technology solutions enabled by optics, optoelectronics and photonics technologies. Constelex designs, manufactures and markets high power optical fiber amplifiers and lasers applicable to telecoms, sensing and defense applications, as well as low-noise, custom-made optical amplifier systems for R&D photonics labs. Constelex provides services and products to companies and research organizations in Europe and Japan. Constelex also specializes in the design and modeling of micro/nano-photonic components and systems and also offers a testing and system integration platform for transforming research prototypes into fully functional systems. The company collaborates with academia and industry for strengthening and fully capitalizing on their capabilities to perform innovative R&D. Constelex is perfectly geared for running and leading R&D projects and also bringing multi-disciplinary projects to life, bridging micro- and nano- technologies with biology, robotics and photonics.

Technische Universität Berlin (TU Berlin) has extended experience in Silicon photonics PLC research, SOI motherboard technology, and AuSn flip-chip assembly. Within federal projects TU Berlin was strongly involved in development of several integrated components for optical communication for high data rates. In addition to the above, an extended background exists at TU Berlin for fiber link simulation, numerical analysis of non-linear impairments for high-speed optical links, and pre-compensation. TU Berlin has been coordinating a joint research activity with the NoE ePIXnet since 2004, and the Photonic Packaging Technology Platform since 2006.


U2T Photonics UK Ltd. (U2t-Uk) (County Durham, UK) was founded in June 2009 as a wholly owned subsidiary company of U2T Photonics AG. It was formerly the Optical Group of RFMD (UK) Ltd, a company which specializes in high volume manufacture of gallium arsenide components. Our core competence is the development of high speed GaAs electro-optic waveguide components (especially modulators) for fiber-optic applications such as communication superhighways and microwave photonic systems. U2T Photonics UK has expert knowledge of device design, chip manufacturing and testing and systems configurations. U2T Photonics UK (and its predecessor at RFMD) has a proven track record of conducting research and development projects which include a three year project on linearised RF modulators for radar applications funded by the UK’s Electro-magnetic Remote Sensing Defence Technology Consortium (EMRS-DTC) for the UK Ministry of Defence. Based on the results of these projects, leading edge electro-optic modulators have been developed and are being introduced to the long-haul telecommunications market for quaternary phase-shift keying (QPSK) 100 gigabit/s ethernet transmitters.


Latest News

GALACTICO new invited papers

GALACTICO invited paper in JLT: Publication title: “Monolithic GaAs Electro-Optic IQ Modulator Demonstrated at 150 Gbit/s with 64QAM”. Link to paper

GALACTICO invited paper in ICTON 2013: Publication title: “Cost-effective Broadband GaAs IQ Modulator Array for Long-Reach OFDM-PONs”. Link to conference website

Invited paper in Frontiers in Optics reporting GaAs modulator technology: Publication title: “Non-linear nano-photonics”. Link to conference website

GALACTICO post-deadline paper @ OFC 2013: Publication title: “First Monolithic GaAs IQ Electro-optic Modulator, Demonstrated at 150 Gbit/s with 64-QAM”. Link to paper

GALACTICO contributed paper @ OFC 2013, Anaheim, CA: GALACTICO presentation @ OFC 2013. Publication title: “Fabrication of the First High-speed GaAs IQ Electro-optic Modulator Arrays and Applicability Study for Low-Cost Tb/s Direct-Detection Optical OFDM Networks”. Link to paper

High speed IQ GaAs modulators: GALACTICO demonstrates 44 Gb/s QPSK transmission with GaAs IQ modulator and fabricates high speed quad IQ modulators for new generation multi-carrier OTN systems. Read more

GALACTICO demonstrates high bandwidth Ge diodes for new generation silicon integrated coherent receiver modules: Ge diodes with >23 GHz 3-dB bandwidth and record performance in terms of dark current (<50 nA) and responsivity (>0.8 A/W) have been fabricated using Germanium epi o n 220 nm SOI substrates by GALACTICO partner IHP. Read more

20/06/2012 GALACTICO @ 17th European Conference on Network and Optical Communications

GALACTICO will be presented at NOC 2012 as part of the invited presentation “Advances in Networking” given by Stefan Spälter – Nokia Siemens Networks. NOC 2012 will be held in Vilanova i la Geltru, Spain. Link to program

25/06/2012 GALACTICO goes to the 9th International Conference on Group IV Photonics

GALACTICO accepted oral presentation at GFP 2102: "Hybrid Integration of Coherent Receivers for Terabit Ethernet on SOI Waveguide PLC". GFP 2012 conference will be held on 29-31 August in San Diego California. Link to advance program


25/06/2012 GALACTICO to present at the 38th European Conference on Optical Communications

“Octary QAM as Capacity Extension for Coherent UDWDM PON”
“Flexible Optical QAM Generation with a Low-Complexity Amplified InP SOA/EAM-Based Modulator”

ECOC 2012 will be held on 16-20 September in Amsterdam. Link to conference program

04/03/2012 GALACTICO @ OFC 2012, Los Angeles, California

GALACTICO presentation @ OFC 2012. Publication title: Phase Entropy-Based Frequency Offset Estimation for Coherent Optical QAM Systems. Link to paper

06/05/2012 GALACTICO @ CLEO 2012, San Jose, California

GALACTICO presentation @ CLEO 2012. Publication title: Frequency Offset Estimation in M-QAM Coherent Optical Systems Using Phase Entropy. Link to paper

19-21/9/2011: ECOC 2011 Geneva

GALACTICO showcases at ECOC 2011 exhibition. GALACTICO was exhibited at this year ECOC through the exhibition booths set-up by U2t, Constelex and NoE EURO-FOS. Device prototypes were displayed and project brochures were distributed to the conference visitors.


20/9/2011: ECOC 2011 Geneva

IHP and TUBerlin JointLab publication at ECOC 2011. Publication title: Fully passive Si-photonic 90° hybrid for coherent receiver applications. For more info click here


20/07/2011: GALACTICO presentation at IEEE Photonics Society Summer Topicals 2011 conference.

The GALACTICO concept and the first research results were presented at the recent 2011 Photonics Society Summer Topical Meetings held in Montreal. The presentation entitled: “The European Galactico Project: Coherent Terabit Ethernet Systems Using 4 μm Rib Waveguide Silicon-on-Insulator Technology and GaAs modulators” was part of the Terabit Optical Ethernet Topical Meeting. The talk was given by CONSTELEX Technology Enablers. For more info click here.

26/5/2011: Presentation to members of the Electrical Engineering Students European Association EESTEC

Constelex presentation on "starting a technology company" focused on disseminating the challenges and requirements for creating technology start-ups, presented photonics as enabling technology in ICT and reviewed the company's business and R&D activities. For more information, please click here.