Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links
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United States of America Patent
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Mar 19, 1996
Issued Date -
N/A
app pub date -
Oct 11, 1994
filing date -
Dec 4, 1989
priority date (Note) -
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Abstract
An optical communications system including a plurality of modulated radio frequency carriers which span more than an octave in bandwidth. In one implementation, the carriers are grouped into ranges which span less than an octave in bandwidth and the individual groups are transmitted over unique optical links. In another implementation, the groups are multiplexed on one optical link by using different wavelengths. In still another implementation, several of the bands are up-converted to the highest band of interest and then transmitted, either over single or multiple links. The resulting optical signals are demodulated and then down-converted before they are recombined into the broadband signal in excess of an octave in bandwidth.
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