High dynamic range radio frequency to optical link
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United States of America Patent
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Sep 9, 2008
Grant Date -
N/A
app pub date -
Mar 31, 2003
filing date -
Mar 31, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A communication system includes an optical transmitter which is differentially driven and an optical receiver that outputs a differential signal. The optical transmitter creates the differential drive signal from an input signal and delivers the differential drive signal to a laser. The differential drive signal is generated with a transformer and RF chokes for floating the laser above ground. The signal detected by the receiver is input as a differential signal to a transformer which then passes the signal through amplifiers and a filter. The optical communication system provides an increased spurious-free dynamic range which is well suited for RF signals and other analog signals.
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