18km bidirectional free-space optical link with multi-aperture antenna and DWDM SFP+ transceivers (VERTIGO project)
31 January 2023 • 4:30 PM - 4:50 PM PST | Moscone Center, Room 206 (Level 2 South)
We report on the demonstration of a bidirectional free-space link over 18 km as part of the European-Union project “VERTIGO” that investigates technologies for the optical GEO-satellite feeder link. Two different terminals were deployed: a single-aperture “satellite” terminal and a 4-aperture “ground” terminal. Using SFP+ transceivers with OOK modulation at 10 Gbit/s, real-time bit error rates (BER) were measured for each aperture in both directions using an FPGA platform. In both directions, diversity signals at the receiver were processed digitally for combining. We report on the achieved performance improvement compared to a single aperture.
Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI (Germany)
Nicolas Perlot received his PhD in electronics engineering from the University of Valenciennes, France, in 2005. He has been with the Fraunhofer Heinrich-Hertz Institute since 2012, where he leads the “Free-Space Optical Systems” group. He previously worked for the German Aerospace Center (DLR) at the Institute of Communication and Navigation. His research interests are fiber and free-space optics, classical and quantum communications.