The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 17, 2019

Filed:

May. 24, 2017
Applicant:

The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);

Inventors:

Robin Mark Adrian Dawson, Watertown, MA (US);

Juha Pekka Laine, Boston, MA (US);

Steven Spector, Cambridge, MA (US);

Murali Chaparala, Newton, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/08 (2006.01); H04B 10/112 (2013.01); H01Q 3/26 (2006.01); H04B 10/071 (2013.01); H04B 7/185 (2006.01);
U.S. Cl.
CPC ...
H04B 10/1123 (2013.01); H01Q 3/2676 (2013.01); H04B 7/18504 (2013.01); H04B 10/071 (2013.01); H04B 10/1129 (2013.01); H04J 14/08 (2013.01);
Abstract

An optical communications system comprises a first node comprising a phased array transmitter for generating an optical beam and a receiver, and a second node comprising a phase conjugate mirror for returning the optical beam to be detected by the receiver of the first node. The phased array transmitters allow for electronic steering of the beams in a way that is much faster and with a potentially smaller physical footprint than the mechanical systems. The phase conjugate mirrors return the received beams of photons back over the exact path they were sent from the phased array transmitters, ensuring continuity of communication even in the presence of atmospheric turbulence.


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