About Us

VI Systems GmbH


VI Systems GmbH (VIS), founded in 2006, is a fabless developer and producer of optical engines for data transmission at ultrahigh bit rates and the related electro-optic components for applications in datacommunications, access networks and sensing.

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Prof. Dr. Nikolay N. Ledentsov

/ Chief Executive Officer (CEO)
Prof. Dr. Nikolay Ledentsov is CEO of VI Systems GmbH. Educated as an Engineer in Opto-Electronics he has more than 20 years experience in the semiconductor research as Professor and Chief Scientist at the Abraham Ioffe Institute in St. Petersburg and in the optoelectronics industry where he took Managing Director and Director positions in several companies (all exist). He served also as DAAD and Mercator Professor at the Technical University Berlin. He is Member of the Russian Academy of Sciences and Member of the Scientific Boards of the Abraham Ioffe Institute and the Academic University (both in St. Petersburg, Russia). He has authored and co-authored 19 US patents and the related patent families. He is awarded with the Russian State Prize in Science and Technology, the Prize of the Berlin-Brandenburg Academy of Sciences, the Young Scientist Award of the International Symposium on Compound Semiconductors, and other awards and recognitions. Nikolay Ledentsov is Fellow of the Institute of Physics (FInstP). He has above 600 publications in peer-reviewed journals. His Hirsch factor is >60.

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Dr. sc. Vitaly A. Shchukin

/ Chief Scientific Officer
Dr. sc. Vitaly Shchukin is the co-inventor of VIS technology. He received his Ph.D and Doctorate of Science (Habilitation) degrees from the Ioffe Institute of the Russian Academy of Sciences in St. Petersburg, Russia. He has authored more than 140 papers, 10 patents, and a monograph. He was a Leading Scientist at the Abraham Ioffe Institute and Senior Visiting Scientist at the Technische Universitaet Berlin. He has gained industry experience at NL-Nanosemiconductor GmbH working as a Principal Scientist and at PBC Lasers as a consultant. His research interests include the development of novel nanophotonic devices and the physical processes of the epitaxy of nanostructures. Dr. Shchukin was awarded with the State Prize of the Russian Federation for Science and Technology in 2001, and the Abraham Ioffe Prize in 1999 and 2002. 

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George Schaefer

/ Manager Technology Commercialization and Director of Sales
George Schäfer is a recognized business development executive in the fiber optics components industry. He has a well-proven track record of driving companies large and small to revenue growth and market leadership. During his career he held several executive positions in Sales and Marketing in Europe and the USA. He spent more than 11 years with major technology companies including General Electric Automation in Frankfurt/M, Seiko Instruments (SII) Fiber Optics Division in Frankfurt/M and Infineon Technologies North America in San Jose, CA. Previously he served as Vice President of Sales and Marketing at Lumics GmbH a venture funded 980nm pump laser diode laser start-up company in Berlin, Germany. Prior to Lumics, Mr. Schaefer was the global Product Marketing Manager at Infineon for the 850nm VCSEL based highspeed interconnect product line PAROLI (parallel optical link). Mr. Schaefer holds a degree in electrical engineering from IHK Frankfurt/M, Germany. He completed studies in electrical engineering at the Technical University in Darmstadt, Germany and holds a Master Degree in Business Administration from Rheinland-Pfalz School of Business in Mainz, Germany
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Mrs. Ljudmila von Berg

/ Director of Operations (DO)
Mrs. von Berg graduated from the Pedagogical Institute for Foreign Languages in Moscow in 1980 (teacher of English and German). She has a rich background in administration, including: McKinsey & Company (1990-1996), Düsseldorf, where she was a Team Member of the Eastern European Desk; European Institute for the Media, Düsseldorf, where she served as program administrator for the ``Media and Democracy Program`` (1997-2003). In 1997 she became a Certified Interpreter for Russian and German. In 2004-2006 she was a General Manager's assistant at a private hospital in Berlin, being also responsible for the activities and businesses of the hospital related to the East European states.

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Dr. Joerg-R. Kropp

/ Director of Integration Technologies and Packaging
Dr. Joerg-R. Kropp received the doctor of science in the field of atomic physics with optical spectroscopy and laser applications. He gained over 25 years of industrial experience in the field of optical communications through various management positions with Siemens and Infineon. His field of experience includes the development of manufacturing processes for mass production of optical transceivers, the development of new generations of modules (such as the well-known parallel optical modules from Siemens PAROLI) as well as innovation and patent management and technology and IP analysis. In addition, Dr. Kropp actively participated for over 10 years in the development of various LAN standards of the optical Ethernet. Dr. Kropp is the inventor of over 40 patent families, with patents in different countries and author of numerous publications and technical contributions in the field of optical communications and micro-systems technology.
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Emil Abelaf

/ Director of Business Development
Emil Abelaf has over 25 years in Sales, Marketing, and Technology and Business development in the fiber optics industry. He developed some of the first digitally driven fiber optic receivers and transmitters as well as the first commercially viable Fiber Amplifier.
He has driven very high revenue growth in many companies, including BT&D Technologies, (purchased by HP/Agilent), E-TEK Dynamics, JDS and SDL, and worked closely with the senior management of those companies to make those companies very successful. He has also managed sales organizations that spanned North America, Europe and most of Asia.
Mr. Abelaf graduated with a Bachelors of Science of Materials Science from Cornell University.