Description of the organisation


Finisar Corporation is a global technology leader in optical communications components and subsystems. Their products enable high-speed voice, video and data communications for networking, storage, wireless, and cable TV applications. For 25 years, Finisar has provided critical breakthroughs in optics technologies and has supplied system manufacturers with the production volumes needed to meet the exploding demand for network bandwidth. Finisar's industry-leading optical products include transceivers/transponders, active cables, wavelength selective switches (WSS), ROADM linecards, optical instruments, RF-over-Fiber, amplifiers, and active and passive components. With approximately 13000 employees, Finisar has sales channels and support offices worldwide. Corporate headquarters are located in Sunnyvale, California (USA), with product development and manufacturing facilities located in California, Pennsylvania and Texas (USA), Australia, China, Germany, Israel, Malaysia, Singapore and Sweden. After acquiring all shares of u2t Photonics AG in Berlin on Jan 31st 2014, this entity became Finisar Germany GmbH, the German subsidiary of Finisar, developing and prototyping high speed optoelectronic components for the Telecom and Datacom systems markets, as well as providing high performance component solutions for the test & measurement equipment market. Inside Finisar Corporation this site will operate as one of Finisar’s global design and product development centre. FIN has expert knowledge starting from chip/device design and chip manufacturing to systems configurations and testing. As result of more than 15 years of research and development high end optoelectronic components have been developed and introduced to the market. Examples are the high-speed waveguide integrated photodetectors with up to 100 GHz bandwidth for test and measurement applications, photoreceivers for applications in 40 and 100 Gb/s communication systems and lately the coherent receiver for optical DP-PolMux QPSK to name just a few.

Inside Finisar Corporation, FIN is a global technology leader for high-speed fibre-optic components and subsystems that enable high-speed voice, video and data communications for telecommunications, networking, storage, wireless and cable TV applications.


Role in the project


In COSMICC, FINISAR is involved mainly in WP2 and WP5 on packaging and demonstration but it is also active the other WP, except WP1. WP2: FINISAR designs and tests the coupling structures for Type 2 WP3: FINISAR specifies the pads configuration on the PIC WP4: FINISAR provides info on Package Constraints for DemoV1, DemoV2 & Proof of concept demo. WP5: FINISAR contributes to the specifications of the PIC and EIC design and wire bond the RF and DC pads from DemoV1 assembly to the PCB. It also designs and tests SiN-polymer couplers and assembly of photonic chip onto the polymer optical packaging flex. It designs and assembles the optical interconnect between the PIC and fiber. FINISAR optically aligns and attaches the polymer to the PIC and measure coupling efficiency and it wire bond the RF and DC pads from DemoV2 assembly to the PCB. Finally, FINISAR is involved in the evaluation of demos.

Main contact

Anthony Martinez

Reuchlinstrasse 10-11,

10553 Berlin



+49 30 726113-596

Key people involved

Dr Anthony Martinez (Male) is Senior Development Engineer at Finisar (Germany) where he is in charge of tackling the challenges of new product introduction for coherent transceivers since 2015. Before this role, Anthony was responsible for the R&D of III-V lasers at the CNRS Laboratory for Photonics and Nanostructures (LPN, France) for 10 years. As a principal investigator at LPN, he has achieved critical breakthroughs in III-V photonics components for optical telecommunication, data centers and defense in cooperation with Alcatel-Lucent/Thales and Orange Labs. Anthony obtained his PhD in Applied Physics in 2002 and holds a MBA from IAE-Sorbonne Business School.

Dr. Andreas Gerhard Steffan (male) was born on November, 22th, 1970 in Hilden, Germany. He studied electrical engineering and physics at Rheinisch-Westfälisch Technische Hochschule (RWTH) Aachen, where he received his Dipl. Ing. and Dipl. Phys. degree. His diploma theses were on Silicon-on-Insulator (SOI) waveguides and the work was carried out at the Institute of Semiconductor Technology (IHT) in cooperation with AMO GmbH, Aachen. In 2002 he received his Ph.D. from the University of Cambridge, England. In 2002 he joined u²t Photonics AG now FIN. Initially he worked as project manager on the development of new transmitter, receivers and test and measurement products, including modulators and pulsed laser sources. At FIN he’s now heading the T&M / Analogue Products group. He is a member of the Institute of Physics (IoP), and received awards from the Engineering and Physical Science Research Council (EPSRC), Renishaw plc. and the Cambridge European Trust.

Tino Brast (male) was born on September, 9th, 1982 in Neustrelitz, Germany. He studied electrical engineering at the University of Technology of Berlin, where he received his Bachelor and Master degree. His main focus was on telecommunications and optical transmission technologies which has been enhanced during his degree theses at Telecom AG and Fraunhofer IPK. After finishing his study, he worked four years at Fraunhofer HHI where he was part of the Photonic Components department. In 2012, Tino Brast joined Finisar Germany GmbH, before u²t Photonics AG. As a Development Engineer he’s working on different European and German founded research projects and is in charge of the product development of GaAs-based modulators. With his strong modulator background and know-how in leading different projects plus telecommunications he further extends the pool of experience of Finisar.

Patrick Domburg (male) was born on May 06th, 1987 in Berlin Germany. In 2010 he received his diploma degree in Microsystems engineering with honors from the University of Applied Science, Berlin. During his studies he worked at the Fraunhofer Institute of Reliability and Microintegration in diverse reliability research projects. He joined Finisar (former u²t photonics AG) in November 2010 and has been working at several receiver research and development projects as Development Engineer. Actually, he heads the product development of next gen. coherent receivers addressing long haul 100 Gb/s DP-QPSK applications. His extended experiences in development of telecommunication components starting form concept phase to high volume production level is an enhancement for this research demand.

Dr. David Rosin (male), born January, 15th, 1987 in Berlin, Germany, studied physics at the University of Technology of Berlin, where he received his Bachelor's, Master's, and PhD degree. During his Master's and PhD work, he spent 4 years at Duke University (USA), where he studied fast pulsing optoelectronic systems and networks of high-frequency microelectronic oscillators. His PhD thesis was awarded international prizes by the Deutsche Physikalische Gesellschaft and Springer International Publishing AG. In 2014, he joined the Finisar Germany GmbH as a Test Engineer working on 100 Gbit/s telecommunication components.