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NASA/GSFC program in direct detection optical communications for intersatellite linksNASA-Goddard has undertaken the development of direct-detection optical communications for space applications at the Gbps data rate channel capability level. The primary challenges to optical communications designers lie in the development of reliable optical power sources, as well as of high performance pointing/acquisition/tracking systems required by the narrow widths of the transmitted optical beams. GaAlAs diodes and their arrays are currently the most attractive technology for optical transmitters; pioneering work has also been conducted on dichroic and grating techniques for combining the power of several laser diodes. Attention is given to the performance obtained for an optical link acquisition and submicroradian tracking/pointing system.
Document ID
19900050948
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fitzmaurice, M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bruno, R.
(Stanford Telecommunications, Inc. Reston, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Meeting Information
Meeting: Optical Space Communication
Location: Paris
Country: France
Start Date: April 24, 1989
End Date: April 26, 1989
Sponsors: SPIE, European Federation for Applied Optics, European Physical Society
Accession Number
90A38003
Distribution Limits
Public
Copyright
Other

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