Method and apparatus for optical communication by frequency modulation

Patent · Fri Jan 01 00:00:00 EST 1988

OSTI ID:866795

Priatko, Gordon J ^[1]

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1. Oakland, CA

Laser optical communication according to this invention is carried out by producing multi-frequency laser beams having different frequencies, splitting one or more of these constituent beams into reference and signal beams, encoding information on the signal beams by frequency modulation and detecting the encoded information by heterodyne techniques. Much more information can be transmitted over optical paths according to the present invention than with the use of only one path as done previously.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4791630
• OSTI ID: 866795
• Country of Publication: United States
• Language: English

Related Subjects

method
apparatus
optical
communication
frequency
modulation
laser
according
carried
producing
multi-frequency
beams
frequencies
splitting
constituent
reference
signal
encoding
information
detecting
encoded
heterodyne
techniques
transmitted
paths
path
previously
laser optical
optical communication
laser beams
laser beam
optical path
signal beam
frequency modulation
heterodyne techniques
frequency laser
heterodyne technique
encoded information
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