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Proceedings Paper

The Challenge
Author(s): Roger L. Freeman
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Paper Abstract

We are on the brink of major technology and system breakthroughs for high data rate atmospheric and space communications. At present, radio systems operate below 60 GHz and are the traditional workhorses for satellite communications. Legal constraints and the laws of physics limit data rates on these systems. Near infrared light systems provide the promise to meet space transmission requirements of the 21st century, much as present fiber optic systems satisfy bandwidth requirements well into the next century. Gigabit data rates are being achieved on operational systems. The challenge we face is how soon equivalent transmission rates will be made available for space application. The position is taken that if we can overcome three optical system and technology issues, the challenge will be met sooner rather than later. In declining order of importance the issues are: Optical pointing, acquisition and tracking Laser diode optical sources that produce sufficient output power Optical detector technology

Paper Details

Date Published: 28 November 1988
PDF: 10 pages
Proc. SPIE 0996, High Data Rate Atmospheric and Space Communications, (28 November 1988); doi: 10.1117/12.960160
Show Author Affiliations
Roger L. Freeman, Raytheon Company (United States)

Published in SPIE Proceedings Vol. 0996:
High Data Rate Atmospheric and Space Communications
Robert Hauptman, Editor(s)

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