Optical: systems and elements – Optical modulator – Light wave directional modulation
Patent
1998-05-11
2000-02-01
Ben, Loha
Optical: systems and elements
Optical modulator
Light wave directional modulation
359245, 359338, 342368, 342372, 342374, 385 5, 385122, 372 3, G02B 2608
Patent
active
060209909
ABSTRACT:
A system for summing RF modulated optical signals. In order to compensate for performance degradation at the summing junction, the system utilizes four-wave mixing elements to provide the phase conjugates of each of the modulated RF signals. The phase conjugates of the RF modulated optical signals are summed at the summing junction. The use of the phase conjugates of the RF modulated optical signals compensates for optical phase errors known to degrade performance when summing RF modulated optical signals.
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Ben Loha
TRW Inc.
Yatsko Michael S.
LandOfFree
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