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Title: Great circle solution to polarization-based quantum communication (QC) in optical fiber

Abstract

Birefringence in optical fibers is compensated by applying polarization modulation at a receiver. Polarization modulation is applied so that a transmitted optical signal has states of polarization (SOPs) that are equally spaced on the Poincare sphere. Fiber birefringence encountered in propagation between a transmitter and a receiver rotates the great circle on the Poincare sphere that represents the polarization bases used for modulation. By adjusting received polarizations, polarization components of the received optical signal can be directed to corresponding detectors for decoding, regardless of the magnitude and orientation of the fiber birefringence. A transmitter can be configured to transmit in conjugate polarization bases whose SOPs can be represented as equidistant points on a great circle so that the received SOPs are mapped to equidistant points on a great circle and routed to corresponding detectors.

Inventors:
; ; ;
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1241523
Patent Number(s):
9287994
Application Number:
13/600,898
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 H04K - SECRET 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:
97 MATHEMATICS AND COMPUTING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats

Nordholt, Jane Elizabeth, Peterson, Charles Glen, Newell, Raymond Thorson, and Hughes, Richard John. Great circle solution to polarization-based quantum communication (QC) in optical fiber. United States: N. p., 2016. Web.
Nordholt, Jane Elizabeth, Peterson, Charles Glen, Newell, Raymond Thorson, & Hughes, Richard John. Great circle solution to polarization-based quantum communication (QC) in optical fiber. United States.
Nordholt, Jane Elizabeth, Peterson, Charles Glen, Newell, Raymond Thorson, and Hughes, Richard John. Tue . "Great circle solution to polarization-based quantum communication (QC) in optical fiber". United States. https://www.osti.gov/servlets/purl/1241523.
@article{osti_1241523,
title = {Great circle solution to polarization-based quantum communication (QC) in optical fiber},
author = {Nordholt, Jane Elizabeth and Peterson, Charles Glen and Newell, Raymond Thorson and Hughes, Richard John},
abstractNote = {Birefringence in optical fibers is compensated by applying polarization modulation at a receiver. Polarization modulation is applied so that a transmitted optical signal has states of polarization (SOPs) that are equally spaced on the Poincare sphere. Fiber birefringence encountered in propagation between a transmitter and a receiver rotates the great circle on the Poincare sphere that represents the polarization bases used for modulation. By adjusting received polarizations, polarization components of the received optical signal can be directed to corresponding detectors for decoding, regardless of the magnitude and orientation of the fiber birefringence. A transmitter can be configured to transmit in conjugate polarization bases whose SOPs can be represented as equidistant points on a great circle so that the received SOPs are mapped to equidistant points on a great circle and routed to corresponding detectors.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {3}
}

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