WO2007094899A3 - Systems and methods for transmitting quantum and classical signals over an optical network - Google Patents

Systems and methods for transmitting quantum and classical signals over an optical network Download PDF

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Publication number
WO2007094899A3
WO2007094899A3 PCT/US2007/000383 US2007000383W WO2007094899A3 WO 2007094899 A3 WO2007094899 A3 WO 2007094899A3 US 2007000383 W US2007000383 W US 2007000383W WO 2007094899 A3 WO2007094899 A3 WO 2007094899A3
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WO
WIPO (PCT)
Prior art keywords
quantum
classical
signals
systems
methods
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2007/000383
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French (fr)
Other versions
WO2007094899A2 (en
Inventor
A Craig Beal
Michael J Lagasse
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MagiQ Technologies Inc
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MagiQ Technologies Inc
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Filing date
Publication date
Application filed by MagiQ Technologies Inc filed Critical MagiQ Technologies Inc
Priority to JP2008554236A priority Critical patent/JP2009526474A/en
Priority to EP07716425A priority patent/EP1987616A2/en
Publication of WO2007094899A2 publication Critical patent/WO2007094899A2/en
Publication of WO2007094899A3 publication Critical patent/WO2007094899A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0852—Quantum cryptography

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

Systems and methods for transmitting quantum and classical signals over an optical network are disclosed, wherein the quantum signal wavelength either falls within the classical signal wavelength band, or is very close to one of the classical signal wavelengths The system includes a deep-notch optical filter (30) with a blocking bandwidth that includes the quantum signal wavelength but not any of the classical signal wavelengths The deep-notch optical filtering is applied to the classical signals (CS) prior to their being multiplexed with the quantum signals to prevent noise generated by the classical signals from adversely affecting transmission of quantum signals in the transmission optical fiber (12) Narrow-band filtering is also applied to the quantum signals prior to their detection in order to substantially exclude spurious non-quantum-signal wavelengths that arise from non-linear effects in the transmission optical fiber.
PCT/US2007/000383 2006-02-10 2007-01-05 Systems and methods for transmitting quantum and classical signals over an optical network Ceased WO2007094899A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008554236A JP2009526474A (en) 2006-02-10 2007-01-05 System and transmission method for transmitting quantum signal and classical signal over optical network
EP07716425A EP1987616A2 (en) 2006-02-10 2007-01-05 Systems and methods for transmitting quantum and classical signals over an optical network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/352,046 US7248695B1 (en) 2006-02-10 2006-02-10 Systems and methods for transmitting quantum and classical signals over an optical network
US11/352,046 2006-02-10

Publications (2)

Publication Number Publication Date
WO2007094899A2 WO2007094899A2 (en) 2007-08-23
WO2007094899A3 true WO2007094899A3 (en) 2008-01-10

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PCT/US2007/000383 Ceased WO2007094899A2 (en) 2006-02-10 2007-01-05 Systems and methods for transmitting quantum and classical signals over an optical network

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US (2) US7248695B1 (en)
EP (1) EP1987616A2 (en)
JP (1) JP2009526474A (en)
WO (1) WO2007094899A2 (en)

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CN107528639B (en) * 2017-09-06 2022-09-16 安徽问天量子科技股份有限公司 Quantum light and classical light common fiber transmission device and transmission method thereof
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Also Published As

Publication number Publication date
WO2007094899A2 (en) 2007-08-23
EP1987616A2 (en) 2008-11-05
US7570420B2 (en) 2009-08-04
JP2009526474A (en) 2009-07-16
US7248695B1 (en) 2007-07-24
US20090016736A1 (en) 2009-01-15

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