DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Self-referenced continuous-variable quantum key distribution

Abstract

Various technologies for continuous-variable quantum key distribution without transmitting a transmitter's local oscillator are described herein. A receiver on an optical transmission channel uses an oscillator signal generated by a light source at the receiver's location to perform interferometric detection on received signals. An optical reference pulse is sent by the transmitter on the transmission channel and the receiver computes a phase offset of the transmission based on quadrature measurements of the reference pulse. The receiver can then compensate for the phase offset between the transmitter's reference and the receiver's reference when measuring quadratures of received data pulses.

Inventors:
; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1340527
Patent Number(s):
9553677
Application Number:
14/943,373
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04L - TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Nov 17
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 97 MATHEMATICS AND COMPUTING

Citation Formats

Soh, Daniel B. S., Sarovar, Mohan, and Camacho, Ryan. Self-referenced continuous-variable quantum key distribution. United States: N. p., 2017. Web.
Soh, Daniel B. S., Sarovar, Mohan, & Camacho, Ryan. Self-referenced continuous-variable quantum key distribution. United States.
Soh, Daniel B. S., Sarovar, Mohan, and Camacho, Ryan. Tue . "Self-referenced continuous-variable quantum key distribution". United States. https://www.osti.gov/servlets/purl/1340527.
@article{osti_1340527,
title = {Self-referenced continuous-variable quantum key distribution},
author = {Soh, Daniel B. S. and Sarovar, Mohan and Camacho, Ryan},
abstractNote = {Various technologies for continuous-variable quantum key distribution without transmitting a transmitter's local oscillator are described herein. A receiver on an optical transmission channel uses an oscillator signal generated by a light source at the receiver's location to perform interferometric detection on received signals. An optical reference pulse is sent by the transmitter on the transmission channel and the receiver computes a phase offset of the transmission based on quadrature measurements of the reference pulse. The receiver can then compensate for the phase offset between the transmitter's reference and the receiver's reference when measuring quadratures of received data pulses.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {1}
}

Works referenced in this record:

Phase locking in a multi-channel quantum communication system
patent, April 2010


Continuous variable quantum encryption key distribution system
patent, April 2011


Methods and apparatus for use in quantum key distribution
patent, March 2014


Multiplexed quantum key distribution
patent, July 2014


Constrained Continuous Phase Modulation and Demodulation in an Optical Communications System
patent-application, August 2013