Optical domain frequency down-conversion of microwave signals

Details Optical domain frequency down-conversion of microwave signals Optical domain frequency down-conversion of microwave signals

2007-07-11

2010-11-16

Vanderpuye, Ken N (Department: 2613)

Optical communications

Receiver

Including optical element

C398S202000, C398S203000, C398S204000

Reexamination Certificate

active

07835650

ABSTRACT:
A linear phase demodulator/down-converter comprises an optical amplitude modulator for modulating the amplitude of an optical input signal, a photo-detector, a loop filter and an optical phase modulator provided with a light source. The optical phase modulator/down-converter provides optical down conversion, optical up conversion, or a combination thereof. The photo-detector can be a balanced photo-detector. Linear phase demodulation and/or down conversion is performed completely in the optical domain.

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