This chapter introduces the developments of concept technologies needed for establishing global broadband communication and connectivity using satellite constellations at different orbits. Each satellite belonging to a constellation will be equipped with laser/optical transceivers for transferring data communication information between them as well as from/to the constellation of optical ground stations (OGSs). This chapter discusses the most recent free-space optical (FSO) communication technology advances to achieve all-optical high-capacity communication systems for seamless global communication system performance. This chapter presents the concepts of optical satellite space networks relevant to constellation design and covers the establishment of satellite-aided Internet. Some of the device technologies include laser beam steering technology with no moving parts and the MEMS-based fast steering mirror specifically useful for CubeSat constellations. Inter-satellite communication system is also addressed for future development of constellation of satellites. Finally, satellite-based global quantum communications and integrated space networks are also discussed. Challenges and progresses for implementing quantum key distribution (QKD) over long distances across free-space channels are also specifically addressed in this chapter. Recent developments of implementing QKD for LEO-to-ground link as well as for inter-satellite links (ISLs) in the presence of atmospheric turbulence are discussed and explained.
Laser-Based Satellite and Inter-satellite Communication Systems: Advanced Technologies and Performance Analysis
Laser Communication with Constellation Satellites, UAVs, HAPs and Balloons ; Kapitel : 7 ; 199-229
2022-06-25
31 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Optical satellite networks , Constellation of satellites , GEO, MEO, LEO , ISL , No moving parts , CubeSats , Visible light communication (VLC) , Microsatellite , Silicon-photonic chip , Quantum communications , Quantum key distribution (QKD) Engineering , Microwaves, RF and Optical Engineering , Communications Engineering, Networks , Optics, Lasers, Photonics, Optical Devices , Optical and Electronic Materials
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