| Multi-gigabit data-rate optical communication depicting LEO-to-GEO and GEO-to-Ground Links (2004) | |||||||||
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| Multi GigabitData rate OpticalCommunicationDepictingLEO GEO and GEO GroundLinks Hemmati Wright Sanii Page Ortiz Biswas and Wilson Jet propulsion Laboratory CaliforniaInstitute Technology ABSTRACT Communication links with multi giga bitsper sec Gbps data rates depicting both LEO GEO and GEO Ground optical communicationswere characterizedin the laboratory Gbps link with capability Gbps was demonstrated the laboratory The breadboard utilized diameter telescope the transmit aperture that simulates the LEO terminal The receiver telescope that simulates the GEO terminal The objective the laboratorybreadboard developmentis validate the link analysis and demonstrate multi gigabit link utilizing off the shelf minimally modified commercially available components optics and opto electronics and subsystems For bit error rate the measured required received signal within that predicted the link analysis INTRODUCTION anticipated that the next generation remote sensing spacecraft mostly LEO orbit will gather enormous quantities data Making this volume data available for use the ground near real time challenging The work presented here describes the use optical communications viable and attractivetechnology for meeting the former requirement namely streaming data from space based sensors ground stations near real time Using GEO relay satellites the favored strategy for transferring large data volumes fkom spaceto ground for reasons elaboratedbelow will possible relay such data the ground adva | |||||||||
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