Optical modulation system

Details Optical modulation system Optical modulation system

1985-12-20

1987-11-24

Orsino, Joseph A.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

369116, 372 26, 372 32, H04B 900

Patent

active

047094176

ABSTRACT:
An optical modulation system is disclosed, which comprises an electro-optic modulator for modulating a laser beam according to a modulation signal, a photoelectric transducing means for transducing the output light of the electro-optic modulator into an electrical signal, a control circuit capable of switching of the polarity of a voltage applied to the modulator, an oscillator for supplying a reference oscillation signal to the control circuit, and a phase synchronizing detector for synchronously detecting the output signal of the photo-electric transducing means.

REFERENCES:
patent: 3471803 (1969-10-01), Forster
patent: 3713042 (1973-01-01), Kinsel

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