Paper 13355-13
Paper 13355-13
Design and FPGA implementation results for a 10-Gbaud coherent optical BPSK space communication modem
Moscone South, Room 208 (Level 2)
Abstract
Recent advancements and lasercom demonstrations in non-coherent and coherent space optical links have significantly enhanced our understanding of the technological feasibility and challenges in optical satellite communication. The CCSDS Optical Working Group is currently revising the optical Blue Books to standardize coherent optical communications. In 2021, Safran Data Systems (SDS) introduced the O3K-compliant Cortex Lasercom modem, achieving 10 Gb/s for space-to-Earth communications, and is now upgrading it to support coherent optical signaling. This paper presents a comprehensive discussion on DSP algorithm design, hardware architecture choices, and FPGA implementation for a 10 Gbaud coherent optical BPSK modem prototype. Furthermore, it lays the foundation for developing a 2x10 Gbauds dual-polarization QPSK modem and addresses the challenges and costs associated with this upscaling process.
Presenter
Albane Colin de Verdiere
IMT Atlantique Bretagne-Pays de la Loire (France)
Albane Colin de Verdière received her MSc degree in Electrical Engineering from IMT Atlantique in September 2022. In the same year, she undertook a six-month research project at WideNorth in Norway, focusing on the design of FPGA modems for unmanned aerial vehicles (UAVs). Since March 2023, Albane has been engaged in a joint Ph.D. program between Safran Data Systems, Les Ulis, France, and IMT Atlantique, Brest, France. Her research focuses on the design of digital signal processing (DSP) algorithms and their implementation on FPGA for coherent optical space communication.