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Title: Polarization tracking system for free-space optical communication, including quantum communication

Abstract

Quantum communication transmitters include beacon lasers that transmit a beacon optical signal in a predetermined state of polarization such as one of the states of polarization of a quantum communication basis. Changes in the beacon polarization are detected at a receiver, and a retarder is adjusted so that the states of polarization in a received quantum communication optical signal are matched to basis polarizations. The beacon and QC signals can be at different wavelengths so that the beacon does not interfere with detection and decoding of the QC optical signal.

Inventors:
; ; ;
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1416319
Patent Number(s):
9866379
Application Number:
13/600,918
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Aug 31
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Nordholt, Jane Elizabeth, Newell, Raymond Thorson, Peterson, Charles Glen, and Hughes, Richard John. Polarization tracking system for free-space optical communication, including quantum communication. United States: N. p., 2018. Web.
Nordholt, Jane Elizabeth, Newell, Raymond Thorson, Peterson, Charles Glen, & Hughes, Richard John. Polarization tracking system for free-space optical communication, including quantum communication. United States.
Nordholt, Jane Elizabeth, Newell, Raymond Thorson, Peterson, Charles Glen, and Hughes, Richard John. Tue . "Polarization tracking system for free-space optical communication, including quantum communication". United States. https://www.osti.gov/servlets/purl/1416319.
@article{osti_1416319,
title = {Polarization tracking system for free-space optical communication, including quantum communication},
author = {Nordholt, Jane Elizabeth and Newell, Raymond Thorson and Peterson, Charles Glen and Hughes, Richard John},
abstractNote = {Quantum communication transmitters include beacon lasers that transmit a beacon optical signal in a predetermined state of polarization such as one of the states of polarization of a quantum communication basis. Changes in the beacon polarization are detected at a receiver, and a retarder is adjusted so that the states of polarization in a received quantum communication optical signal are matched to basis polarizations. The beacon and QC signals can be at different wavelengths so that the beacon does not interfere with detection and decoding of the QC optical signal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {1}
}

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