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Title: Quantum communications system with integrated photonic devices

Abstract

Security is increased in quantum communication (QC) systems lacking a true single-photon laser source by encoding a transmitted optical signal with two or more decoy-states. A variable attenuator or amplitude modulator randomly imposes average photon values onto the optical signal based on data input and the predetermined decoy-states. By measuring and comparing photon distributions for a received QC signal, a single-photon transmittance is estimated. Fiber birefringence is compensated by applying polarization modulation. A transmitter can be configured to transmit in conjugate polarization bases whose states of polarization (SOPs) can be represented as equidistant points on a great circle on the Poincare sphere so that the received SOPs are mapped to equidistant points on a great circle and routed to corresponding detectors. Transmitters are implemented in quantum communication cards and can be assembled from micro-optical components, or transmitter components can be fabricated as part of a monolithic or hybrid chip-scale circuit.

Inventors:
; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1408899
Patent Number(s):
9,819,418
Application Number:
14/422,106
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM) LANL
DOE Contract Number:
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Aug 16
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 36 MATERIALS SCIENCE

Citation Formats

Nordholt, Jane E., Peterson, Charles Glen, Newell, Raymond Thorson, and Hughes, Richard John. Quantum communications system with integrated photonic devices. United States: N. p., 2017. Web.
Nordholt, Jane E., Peterson, Charles Glen, Newell, Raymond Thorson, & Hughes, Richard John. Quantum communications system with integrated photonic devices. United States.
Nordholt, Jane E., Peterson, Charles Glen, Newell, Raymond Thorson, and Hughes, Richard John. 2017. "Quantum communications system with integrated photonic devices". United States. doi:. https://www.osti.gov/servlets/purl/1408899.
@article{osti_1408899,
title = {Quantum communications system with integrated photonic devices},
author = {Nordholt, Jane E. and Peterson, Charles Glen and Newell, Raymond Thorson and Hughes, Richard John},
abstractNote = {Security is increased in quantum communication (QC) systems lacking a true single-photon laser source by encoding a transmitted optical signal with two or more decoy-states. A variable attenuator or amplitude modulator randomly imposes average photon values onto the optical signal based on data input and the predetermined decoy-states. By measuring and comparing photon distributions for a received QC signal, a single-photon transmittance is estimated. Fiber birefringence is compensated by applying polarization modulation. A transmitter can be configured to transmit in conjugate polarization bases whose states of polarization (SOPs) can be represented as equidistant points on a great circle on the Poincare sphere so that the received SOPs are mapped to equidistant points on a great circle and routed to corresponding detectors. Transmitters are implemented in quantum communication cards and can be assembled from micro-optical components, or transmitter components can be fabricated as part of a monolithic or hybrid chip-scale circuit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month =
}

Patent:

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  • A system and method for interfacing large-area electronics with integrated circuit devices is provided. The system may be implemented in an electronic device including a large area electronic (LAE) device disposed on a substrate. An integrated circuit IC is disposed on the substrate. A non-contact interface is disposed on the substrate and coupled between the LAE device and the IC. The non-contact interface is configured to provide at least one of a data acquisition path or control path between the LAE device and the IC.
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