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

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

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:: Nordholt, Jane Elizabeth; Newell, Raymond Thorson; Peterson, Charles Glen; Hughes, Richard John

Issue Date:: 2018-01-09

OSTI Identifier:: 1416319

Assignee:: Los Alamos National Security, LLC (Los Alamos, NM) LANL

Patent Number(s):: 9,866,379

Application Number:: 13/600,918

Contract Number:: AC52-06NA25396

Resource Relation:: Patent File Date: 2012 Aug 31

Research Org:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

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Other works cited in this record:

Secure communications with low-orbit spacecraft using quantum cryptography
patent, October 1999

Hughes, Richard J.; Buttler, William T.; Kwiat, Paul G.
US Patent Document 5,966,224
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F5966224

Dual encryption protocol for scalable secure group communication
patent, July 2001

Dondeti, Lakshminath R.; Mukherjee, Sarit; Samal, Ashok
US Patent Document 6,263,435
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F6263435

Free-space quantum cryptography system
patent, September 2001

Patterson, David; Kubik, James
US Patent Document 6,289,104
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F6289104

Scanning interferometric near-field confocal microscopy
patent, September 2002

Hill, Henry
US Patent Document 6,445,453
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F6445453

Quantum cryptography system for a secure transmission of random keys using a polarization setting method
patent, June 2004

Dultz, Wolfgang; Schmitzer, Heidrun; Beresnev, Leonid
US Patent Document 6,748,081
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F6748081

Method and apparatus for free-space quantum key distribution in daylight
patent, June 2004

Hughes, Richard J.; Buttler, William T.; Lamoreaux, Steve K.
US Patent Document 6,748,083
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F6748083

Systems and methods for reserving cryptographic key material
patent, April 2009

Elliott, Brig Barnum
US Patent Document 7,515,716
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F7515716

Multi-wavelength time-coincident optical communications system and methods thereof
patent, August 2009

Lekki, John; Nguyen, Quang-Viet
US Patent Document 7,574,137
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F7574137

Quantum key distribution method and communication apparatus
patent, September 2009

Matsumoto, Wataru
US Patent Document 7,587,654
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F7587654

Systems and methods for implementing path length control for quantum cryptographic systems
patent, December 2009

Pikalo, Oleksiy; Schlafer, John D.; Elliot, Brig B.
US Patent Document 7,627,126
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F7627126

Phase responsive optical fiber sensor
patent, May 2010

Patel, Jayantilal S.; Zhuang, Zhizhong; Zadorozhny, Yuri
US Patent Document 7,725,026
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F7725026

patent, August 2011

\tLinnell, Thomas; Harwood, Jack; Fitzgerald, John T.
US Patent Document 8,005,227
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F8005227

Method for managing cryptographic information
patent, July 2012

Sussland, Robert J.; Kavuri, Ravi; Agarwal, Gaurav
US Patent Document 8,213,620
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F8213620

Method and apparatus for free-space quantum key distribution in daylight
patent-application, December 2001

Hughes, Richard J.; Buttler, William T.; Lamoreaux, Steve K.
US Patent Application \t09/844176; 20010055389
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220010055389%22.PGNR.&OS=DN/20010055389&RS=DN/20010055389

Biometric verification for electronic transactions over the web
patent-application, January 2002

Karthik, Kaleedhass
US Patent Application 09/893714; 20020010857
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220020010857%22.PGNR.&OS=DN/20020010857&RS=DN/20020010857

Feedback polarization controller
patent-application, January 2003

Wood, Christopher S.; Brown, Terry J.; Ensher, Jason R.
US Patent Application 10/179807; 20030002768
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220030002768%22.PGNR.&OS=DN/20030002768&RS=DN/20030002768

Dual battery configuration and method of using the same to provide a long-term power solution in a programmable smart card
patent-application, May 2003

Johnson, Michael W.
US Patent Application 09/997122; 20030098355
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220030098355%22.PGNR.&OS=DN/20030098355&RS=DN/20030098355

Systems and methods for non-interactive session key distribution with revocation
patent-application, January 2004

Staddon, Jessica N.; Berson, Thomas A.; Franklin, Matthew
US Patent Application \t10/255964; 20040017916
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220040017916%22.PGNR.&OS=DN/20040017916&RS=DN/20040017916

Interferometry systems involving a dynamic beam-steering assembly
patent-application, June 2004

Hill, Henry A.; Kreuzer, Justin
US Patent Document 10/464829; 20040114152
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220040114152%22.PGNR.&OS=DN/20040114152&RS=DN/20040114152

Method and system for establishing a wireless communication link
patent-application, July 2004

Gehrmann, Christian
US Patent Application 10/467511; 20040128509
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220040128509%22.PGNR.&OS=DN/20040128509&RS=DN/20040128509

Quantum cryptography
patent-application, February 2005

Kent, Adrian Patrick; Munro, William John; Spiller, Timothy Paul
US Patent Document 10/627158; 20050036624
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050036624%22.PGNR.&OS=DN/20050036624&RS=DN/20050036624

Method and apparatus for distributing and updating private keys of multicast group managers using directory replication
patent-application, February 2005

\tSrivastava, Sunil; Trostle, Jonathon; Bell, Raymond
US Patent Application \t10/954525; 20050044356
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050044356%22.PGNR.&OS=DN/20050044356&RS=DN/20050044356

Secure quantum key distribution using entangled photons
patent-application, June 2005

Kastella, Keith; Conti, Ralph S.; Augustyn, Kenneth A.
US Patent Document 11/013946; 20050135620
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050135620%22.PGNR.&OS=DN/20050135620&RS=DN/20050135620

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patent-application, June 2005

Kumar, Prem; Corndorf, Eric; Kanter, Gregory S.
US Patent Application 10/982196; 20050141716
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050141716%22.PGNR.&OS=DN/20050141716&RS=DN/20050141716

System and method for wave vector multiplexed laser communication
patent-application, October 2005

Gilbert, Gerald N.; Hamrick, Michael D.; Jaspan, Martin A.
US Patent Document 11/115198; 20050238356
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050238356%22.PGNR.&OS=DN/20050238356&RS=DN/20050238356

Inspection system with oblique viewing angle
patent-application, January 2006

Korengut, Doron; Cohen, Benjamin; Guetta, Avishay
US Patent Document 10/511084; 20060007531
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060007531%22.PGNR.&OS=DN/20060007531&RS=DN/20060007531

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patent-application, March 2006

Zimmer, Vincent J.; Rothman, Michael A.
US Patent Document 10/940196; 20060056630
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060056630%22.PGNR.&OS=DN/20060056630&RS=DN/20060056630

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patent-application, April 2006

Fujii, Mikio
US Patent Document 11/254719; 20060088157
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060088157%22.PGNR.&OS=DN/20060088157&RS=DN/20060088157

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patent-application, July 2006

Ahonen, Pasi; Ilkka, Uusitalo
US Patent Application 10/527368; 20060168446
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060168446%22.PGNR.&OS=DN/20060168446&RS=DN/20060168446

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patent-application, September 2006

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US Patent Application \t11/082068; 20060212936
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060212936%22.PGNR.&OS=DN/20060212936&RS=DN/20060212936

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patent-application, October 2006

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US Patent Document 11/318636; 20060222180
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060222180%22.PGNR.&OS=DN/20060222180&RS=DN/20060222180

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patent-application, November 2006

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US Patent Application \t11/210973; 20060263096
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060263096%22.PGNR.&OS=DN/20060263096&RS=DN/20060263096

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patent-application, December 2006

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US Patent Document 11/164841; 20060290941
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060290941%22.PGNR.&OS=DN/20060290941&RS=DN/20060290941

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patent-application, March 2007

Tanaka, Akihiro; Tajima, Akio; Takahashi, Seigo
US Patent Document 11/482016; 20070058810
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070058810%22.PGNR.&OS=DN/20070058810&RS=DN/20070058810

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patent-application, August 2007

Mimih, Jihane; Hillery, Mark; Rogacheva, Ekaterina
US Patent Application 11/653056; 20070177735
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070177735%22.PGNR.&OS=DN/20070177735&RS=DN/20070177735

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patent-application, August 2007

Troxel, Gregory; Pearson, David Spencer; Elliott, Brig Barnum
US Patent Application 11/327471; 20070192598
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070192598%22.PGNR.&OS=DN/20070192598&RS=DN/20070192598

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patent-application, September 2007

Shattil, Steve
US Patent Document 11/621014; 20070211786
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070211786%22.PGNR.&OS=DN/20070211786&RS=DN/20070211786

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patent-application, September 2007

Tsurumaru, Toyohiro
US Patent Application 11/631530; 20070223698
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070223698%22.PGNR.&OS=DN/20070223698&RS=DN/20070223698

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patent-application, December 2007

Boffi, Pierpaolo; Marazzi, Lucia; Martelli, Paolo
US Patent Application 11/665466; 20070280689
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070280689%22.PGNR.&OS=DN/20070280689&RS=DN/20070280689

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patent-application, February 2008

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US Patent Application 11/490853; 20080031456
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080031456%22.PGNR.&OS=DN/20080031456&RS=DN/20080031456

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patent-application, June 2008

Abe, Jun'ichi; Shimizu, Katsuhiro; Hasegawa, Toshio
US Patent Application 11/632314; 20080144823
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080144823%22.PGNR.&OS=DN/20080144823&RS=DN/20080144823

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patent-application, June 2008

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US Patent Application 11/614711; 20080152147
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080152147%22.PGNR.&OS=DN/20080152147&RS=DN/20080152147

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patent-application, December 2008

Poppe, Andreas
US Patent Document 12/137005; 20080310856
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080310856%22.PGNR.&OS=DN/20080310856&RS=DN/20080310856

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patent-application, January 2009

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US Patent Application 12/223308; 20090022322
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090022322%22.PGNR.&OS=DN/20090022322&RS=DN/20090022322

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patent-application, April 2009

Noll, Landon Curt; Lockhart, Robert Adrian
US Patent Application 12/102853; 20090092252
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090092252%22.PGNR.&OS=DN/20090092252&RS=DN/20090092252

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patent-application, April 2009

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US Patent Document 12/328917; 20090110033
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090110033%22.PGNR.&OS=DN/20090110033&RS=DN/20090110033

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patent-application, June 2009

Vig, Harry
US Patent Application 10/587676; 20090150561
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090150561%22.PGNR.&OS=DN/20090150561&RS=DN/20090150561

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patent-application, June 2009

Sipple, Michael
US Patent Application 12/156526; 20090160670
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090160670%22.PGNR.&OS=DN/20090160670&RS=DN/20090160670

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patent-application, July 2009

Watanabe, Yodai
US Patent Application 11/814619; 20090169015
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090169015%22.PGNR.&OS=DN/20090169015&RS=DN/20090169015

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patent-application, July 2009

Brandt, Howard E.
US Patent Application 11/239461; 20090175450
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090175450%22.PGNR.&OS=DN/20090175450&RS=DN/20090175450

Key Management and User Authentication for Quantum Cryptography Networks
patent-application, July 2009

Gelfond, Robert; Berzanskis, Audrius
US Patent Application 12/225560; 20090175452
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090175452%22.PGNR.&OS=DN/20090175452&RS=DN/20090175452

QKD STATIONS WITH FAST OPTICAL SWITCHES AND QKD SYSTEMS USING SAME
patent-application, July 2009

\tTrifonov, Alexei
US Patent Application 11/495962; 20090180615
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090180615%22.PGNR.&OS=DN/20090180615&RS=DN/20090180615

Architecture for reconfigurable quantum key distribution networks based on entangled photons directed by a wavelength selective switch
patent-application, July 2009

Brodsky, Mikhail; Feuer, Mark David
US Patent Application 12/008926; 20090180616
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090180616%22.PGNR.&OS=DN/20090180616&RS=DN/20090180616

Architecture for reconfigurable quantum key distribution networks based on entangled photons by wavelength division multiplexing
patent-application, July 2009

Brodsky, Mikhail; Feuer, Mark David
US Patent Application 12/008952; 20090180776
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090180776%22.PGNR.&OS=DN/20090180776&RS=DN/20090180776

QKD system and method with improved signal-to-noise ratio
patent-application, July 2009

Beal, A. Craig
US Patent Application 12/009457; 20090185689
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090185689%22.PGNR.&OS=DN/20090185689&RS=DN/20090185689

QKD Arrangement
patent-application, July 2009

Peev, Momtchil; Bettelli, Stefano
US Patent Application 12/267150; 20090190759
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090190759%22.PGNR.&OS=DN/20090190759&RS=DN/20090190759

QKD station with EMI signature suppression
patent-application, August 2009

Trifonov, Alexei; Gortych, Joseph E.
US Patent Application 12/384968; 20090202074
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090202074%22.PGNR.&OS=DN/20090202074&RS=DN/20090202074

UNIVERSAL-HASH-FUNCTION-FAMILY CALCULATION UNIT AND SHARED-KEY GENERATION SYSTEM
patent-application, September 2009

Obana, Satoshi; Tanaka, Akihiro
US Patent Application 12/067618; 20090240913
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090240913%22.PGNR.&OS=DN/20090240913&RS=DN/20090240913

Modulation scheme with increased number of states of polarization
patent-application, October 2009

Buelow, Henning
US Patent Application 12/384320; 20090257755
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090257755%22.PGNR.&OS=DN/20090257755&RS=DN/20090257755

Method and system for managing shared random numbers in secret communication network
patent-application, October 2009

Maeda, Wakako; Tajima, Akio; Takahashi, Seigo
US Patent Application 12/385832; 20090262942
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090262942%22.PGNR.&OS=DN/20090262942&RS=DN/20090262942

Secure optical communications system and method with coherent detection
patent-application, February 2010

Shpantzer, Isaac; Reingand, Nadejda; Salamon, Aviv
US Patent Document 12/028121; 20100028024
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100028024%22.PGNR.&OS=DN/20100028024&RS=DN/20100028024

Polarization Coding Quantum Cryptography System
patent-application, June 2010

Youn, Chun-Ju; Noh, Tae-Gon
US Patent Document 12/499050; 20100158252
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100158252%22.PGNR.&OS=DN/20100158252&RS=DN/20100158252

Chaotic Cipher System and Method for Secure Communication
patent-application, August 2010

Bukshpun, Leonid; Forrester, Thomas; Jannson, Tomasz
US Patent Document 12/626533; 20100211787
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100211787%22.PGNR.&OS=DN/20100211787&RS=DN/20100211787

QUANTUM COMMUNICATION APPARATUS, QUANTUM COMMUNICATION SYSTEM AND QUANTUM COMMUNICATION METHOD
patent-application, September 2010

Nishioka, Tsuyoshi; Takeuchi, Shigeki; Soujaeff, Alexandre
US Patent Application 12/376343; 20100226659
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100226659%22.PGNR.&OS=DN/20100226659&RS=DN/20100226659

QUANTUM KEY DISTRIBUTION SYSTEM USING LDPC CODES WITH A GRAPH HAVING A TOROID STRUCTURE
patent-application, October 2010

Harrison, Keith Alexander; Munro, William
US Patent Application 12/740341; 20100257434
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100257434%22.PGNR.&OS=DN/20100257434&RS=DN/20100257434

Super-Resolution Microscope
patent-application, June 2011

Iketaki, Yoshinori
US Patent Document 12/961917; 20110140000
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110140000%22.PGNR.&OS=DN/20110140000&RS=DN/20110140000

Method of Using ECDSA with Winternitz One Time Signature
patent-application, August 2011

Bhattacharya, Debojyoti; Kherani, Arzad A.
US Patent Application 12/712349; 20110208971
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110208971%22.PGNR.&OS=DN/20110208971&RS=DN/20110208971

Quantum Key Distribution
patent-application, September 2011

Wiseman, Simon Robert; Lowans, Brian Sinclair; Ayling, Stephen Gerard
US Patent Document 13/125735; 20110213979
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110213979%22.PGNR.&OS=DN/20110213979&RS=DN/20110213979

Systems and Methods for Stabilization of Interferometers for Quantum Key Distribution
patent-application, November 2011

Habif, Jonathan Lenahan
US Patent Document 12/781446; 20110280405
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110280405%22.PGNR.&OS=DN/20110280405&RS=DN/20110280405

Quantum Encryption Communication Apparatus, Quantum Encryption Communication Method, and Quantum Encryption Communication System
patent-application, April 2012

Ukita, Masakazu; Kawamoto, Yohei; Tanaka, Yu
US Patent Document 13/238092; 20120087500
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220120087500%22.PGNR.&OS=DN/20120087500&RS=DN/20120087500

Methods and Apparatus For Use In Quantum Key Distribution
patent-application, July 2012

Ayling, Stephen Gerard; Wiseman, Simon Robert; Lowans, Brian Sinclair
US Patent Document 13/496324; 20120177201
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220120177201%22.PGNR.&OS=DN/20120177201&RS=DN/20120177201

Quantum cryptographic network based on quantum memories
journal, October 1996

Biham, Eli; Huttner, Bruno; Mor, Tal
Physical Review A, Vol. 54, Issue 4, p. 2651-2658
DOI: 10.1103/PhysRevA.54.2651

Free-space quantum-key distribution
journal, April 1998

Buttler, W. T.; Hughes, R. J.; Kwiat, P. G.
Physical Review A, Vol. 57, Issue 4, p. 2379-2382
DOI: 10.1103/PhysRevA.57.2379

Practical Free-Space Quantum Key Distribution over 1 km
journal, October 1998

Buttler, W. T.; Hughes, R. J.; Kwiat, P. G.
Physical Review Letters, Vol. 81, Issue 15, p. 3283-3286
DOI: 10.1103/PhysRevLett.81.3283

Secure Identification and QKD in the Bounded-Quantum-Storage Model
book, January 2007

Damgård, Ivan B.; Fehr, Serge; Salvail, Louis
Advances in Cryptology - CRYPTO 2007, p. 342-359
DOI: 10.1007/978-3-540-74143-5_19

Low cost and compact quantum key distribution
journal, October 2006

Duligall, J. L.; Godfrey, M. S.; Harrison, K. A.
New Journal of Physics, Vol. 8, Issue 10, p. 249-249
DOI: 10.1088/1367-2630/8/10/249

Quantum secret sharing
journal, March 1999

Hillery, Mark; Bužek, Vladimír; Berthiaume, André
Physical Review A, Vol. 59, Issue 3, p. 1829-1834
DOI: 10.1103/PhysRevA.59.1829

Quantum Key Distribution Based on Multi-qubit Hadamard Matrices
conference, September 2008

Huang, Dazu; Chen, Zhigang
DOI: 10.1109/IAS.2008.40

Secure communications using quantum cryptography
conference, July 1997

Hughes, Richard J.; Buttler, William T.; Kwiat, Paul G.
Photonic Quantum Computing Proceedings, Vol. 3076
DOI: 10.1117/12.277644

Free-space quantum key distribution in daylight
journal, February 2000

Hughes, Richard J.; Buttler, William T.; Kwiat, Paul G.
Journal of Modern Optics, Vol. 47, Issue 2-3, p. 549-562
DOI: 10.1080/09500340008244059

Practical free-space quantum key distribution over 10 km in daylight and at night
journal, January 2002

Hughes, Richard J.; Nordholt, Jane E.; Derkacs, Derek
New Journal of Physics, Vol. 4, p. 43-43
DOI: 10.1088/1367-2630/4/1/343

High Speed Quantum Key Distribution Over Optical Fiber Network System
journal, May 2009

Ma, Lijun; Mink, Alan; Tang, Xiao
Journal of Research of the National Institute of Standards and Technology, Vol. 114, Issue 3, p. 149-177
DOI: 10.6028/jres.114.010

Network applications of cascaded passive code translation for WDM-compatible spectrally phase-encoded optical CDMA
journal, October 2005

Menendez, R. C.; Toliver, P.; Galli, S.
Journal of Lightwave Technology, Vol. 23, Issue 10, p. 3219-3231
DOI: 10.1109/JLT.2005.856285

Custom hardware to eliminate bottlenecks in QKD throughput performance
conference, September 2007

Mink, Alan; Arakawa, Yasuhiko; Sasaki, Masahide
Quantum Communications Realized, Vol. 6780
DOI: 10.1117/12.733136

Present and future free-space quantum key distribution
conference, April 2002

Nordholt, Jane E.; Hughes, Richard J.; Morgan, George L.
Free-Space Laser Communication Technologies XIV, Vol. 4635
DOI: 10.1117/12.464085

The SECOQC quantum key distribution network in Vienna
journal, July 2009

Peev, M.; Pacher, C.; Alléaume, R.
New Journal of Physics, Vol. 11, Issue 7, Article No. 075001
DOI: 10.1088/1367-2630/11/7/075001

Dense wavelength multiplexing of 1550 nm QKD with strong classical channels in reconfigurable networking environments
journal, April 2009

Peters, N. A.; Toliver, P.; Chapuran, T. E.
New Journal of Physics, Vol. 11, Issue 4, Article No. 045012
DOI: 10.1088/1367-2630/11/4/045012

Long-Distance Decoy-State Quantum Key Distribution in Optical Fiber
journal, January 2007

Rosenberg, Danna; Harrington, Jim W.; Rice, Patrick R.
Physical Review Letters, Vol. 98, Issue 1, Article No. 010503
DOI: 10.1103/PhysRevLett.98.010503

Practical long-distance quantum key distribution system using decoy levels
journal, April 2009

Rosenberg, D.; Peterson, C. G.; Harrington, J. W.
New Journal of Physics, Vol. 11, Issue 4, Article No. 045009
DOI: 10.1088/1367-2630/11/4/045009

Quantum key distribution at telecom wavelengths with noise-free detectors
journal, January 2006

Rosenberg, Danna; Nam, Sae Woo; Hiskett, Philip A.
Applied Physics Letters, Vol. 88, Issue 2, Article No. 021108
DOI: 10.1063/1.2164307

Progress toward quantum communications networks: opportunities and challenges
conference, February 2007

Runser, Robert J.; Chapuran, Thomas; Toliver, Paul
Optoelectronic Integrated Circuits IX, Vol. 6476
DOI: 10.1117/12.708669

New Efficient Three-Party Quantum Key Distribution Protocols
journal, January 2009

Shih, Han-Cheng; Lee, Kuo-Chang; Hwang, Tzonelih
IEEE Journal of Selected Topics in Quantum Electronics, Vol. 15, Issue 6, p. 1602-1606
DOI: 10.1109/JSTQE.2009.2019617

Experimental investigation of quantum key distribution through transparent optical switch elements
journal, November 2003

Toliver, P.; Runser, R. J.; Chapuran, T. E.
IEEE Photonics Technology Letters, Vol. 15, Issue 11, p. 1669-1671
DOI: 10.1109/LPT.2003.818687

New hash functions and their use in authentication and set equality
journal, June 1981

Wegman, Mark N.; Carter, J. Lawrence
Journal of Computer and System Sciences, Vol. 22, Issue 3, p. 265-279
DOI: 10.1016/0022-0000(81)90033-7

Efficient generation of polarization-entangled photons in a nonlinear crystal
journal, November 2006

Wong, F. N. C.; Shapiro, J. H.; Kim, T.
Laser Physics, Vol. 16, Issue 11, p. 1517-1524
DOI: 10.1134/S1054660X06110053

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