Dual channel phase locked optical homodyne receiver

Details Dual channel phase locked optical homodyne receiver Dual channel phase locked optical homodyne receiver

1975-08-29

1976-07-20

Griffin, Robert L.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

325329, 325444, H04B 900

Patent

active

039708381

ABSTRACT:
An improved homodyne receiver for use in wideband optical communications systems is disclosed. The receiver utilizes dual channelization of the optical input signal in the manner of a Costas two-phase synchronous receiver. A novel beam-splitting/phase-splitting optical assembly is used to channelize the received and the local oscillator beams and insure the desired phase relationships. The receiver is capable of phase-locked operation in the presence of noise and frequency variations in the received and local oscillator signals.

REFERENCES:
patent: 3258597 (1966-06-01), Forrester
patent: 3571597 (1971-03-01), Wood
patent: 3694656 (1972-09-01), Henning
patent: 3939341 (1976-02-01), Graves

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