EP1782562A4 - A private and secure optical communication system using an optical tapped delay line - Google Patents

A private and secure optical communication system using an optical tapped delay line

Info

Publication number
EP1782562A4
EP1782562A4 EP04778329A EP04778329A EP1782562A4 EP 1782562 A4 EP1782562 A4 EP 1782562A4 EP 04778329 A EP04778329 A EP 04778329A EP 04778329 A EP04778329 A EP 04778329A EP 1782562 A4 EP1782562 A4 EP 1782562A4
Authority
EP
European Patent Office
Prior art keywords
optical
private
communication system
delay line
tapped delay
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.)
Withdrawn
Application number
EP04778329A
Other languages
German (de)
French (fr)
Other versions
EP1782562A2 (en
Inventor
Terry M Turpin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Essex Corp
Original Assignee
Essex Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Essex Corp filed Critical Essex Corp
Publication of EP1782562A2 publication Critical patent/EP1782562A2/en
Publication of EP1782562A4 publication Critical patent/EP1782562A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/85—Protection from unauthorised access, e.g. eavesdrop protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2861—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using fibre optic delay lines and optical elements associated with them, e.g. for use in signal processing, e.g. filtering
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29358—Multiple beam interferometer external to a light guide, e.g. Fabry-Pérot, etalon, VIPA plate, OTDL plate, continuous interferometer, parallel plate resonator

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
EP04778329A 2004-07-15 2004-07-15 A private and secure optical communication system using an optical tapped delay line Withdrawn EP1782562A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2004/022755 WO2006019369A2 (en) 2004-07-15 2004-07-15 A private and secure optical communication system using an optical tapped delay line.

Publications (2)

Publication Number Publication Date
EP1782562A2 EP1782562A2 (en) 2007-05-09
EP1782562A4 true EP1782562A4 (en) 2011-09-14

Family

ID=35907818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04778329A Withdrawn EP1782562A4 (en) 2004-07-15 2004-07-15 A private and secure optical communication system using an optical tapped delay line

Country Status (4)

Country Link
EP (1) EP1782562A4 (en)
JP (1) JP2008507196A (en)
CA (1) CA2573981A1 (en)
WO (1) WO2006019369A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7965944B2 (en) 2007-05-18 2011-06-21 Corning Incorporated System for passive scrambling and unscrambling of an optical signal
US8744262B2 (en) 2009-12-08 2014-06-03 Vello Systems, Inc. Optical subchannel routing, protection switching and security
US8705741B2 (en) * 2010-02-22 2014-04-22 Vello Systems, Inc. Subchannel security at the optical layer
CN110264860B (en) * 2019-06-14 2021-05-11 长春理工大学 Multispectral image camouflage method based on multi-membrane array

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411683A (en) * 1943-06-23 1946-11-26 Radio Patents Corp Method and arrangement for scrambling speech signals
JPS5975731A (en) * 1982-10-25 1984-04-28 Sony Corp Secret talk communication system
EP0866581A2 (en) * 1997-03-17 1998-09-23 AT&T Corp. Methods and apparatus for secure optical communications links
WO2000007319A2 (en) * 1998-07-30 2000-02-10 Codestream Technologies Corporation Optical cdma system using sub-band coding

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185241A (en) * 1973-06-06 1980-01-22 Westinghouse Electric Corp. Communications system using time position modulation and correlation slope demodulation
JPH0481139A (en) * 1990-07-24 1992-03-13 Fujitsu Ltd Voice privacy call device
JPH0564194A (en) * 1991-09-04 1993-03-12 Matsushita Electric Ind Co Ltd Video signal scramble method and equipment therefor
JPH10271096A (en) * 1997-03-26 1998-10-09 Oki Electric Ind Co Ltd Encryption system
US6025944A (en) * 1997-03-27 2000-02-15 Mendez R&D Associates Wavelength division multiplexing/code division multiple access hybrid
JPH1198487A (en) * 1997-09-24 1999-04-09 Mitsubishi Electric Corp Image coder and image decoder
DE19828614A1 (en) * 1998-06-26 1999-12-30 Ams Optotech Vertrieb Gmbh Transmission method for optical data using optical waveguide
KR20010072119A (en) * 1998-07-30 2001-07-31 추후제출 Optical cdma system
JP2000092044A (en) * 1998-09-14 2000-03-31 Toshiba Corp Communication system
US7272319B1 (en) * 1999-03-04 2007-09-18 Lucent Technologies Inc. System and method for secure multiple wavelength communication on optical fibers
US6332689B1 (en) * 1999-12-14 2001-12-25 Fujitsu Limited Optical apparatus which uses a virtually imaged phased array to produce chromatic dispersion
US6608721B1 (en) * 2000-06-02 2003-08-19 Essex Corporation Optical tapped delay line
JP2002124942A (en) * 2000-10-12 2002-04-26 Kenwood Corp Variable quality data supply system, variable quality data reproducer, data protecting device, method for supplying variable quality data, method for reproducing variable quality data, method for protecting data and recording medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411683A (en) * 1943-06-23 1946-11-26 Radio Patents Corp Method and arrangement for scrambling speech signals
JPS5975731A (en) * 1982-10-25 1984-04-28 Sony Corp Secret talk communication system
EP0866581A2 (en) * 1997-03-17 1998-09-23 AT&T Corp. Methods and apparatus for secure optical communications links
WO2000007319A2 (en) * 1998-07-30 2000-02-10 Codestream Technologies Corporation Optical cdma system using sub-band coding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006019369A2 *

Also Published As

Publication number Publication date
WO2006019369A3 (en) 2009-04-16
JP2008507196A (en) 2008-03-06
EP1782562A2 (en) 2007-05-09
WO2006019369A2 (en) 2006-02-23
CA2573981A1 (en) 2006-02-23

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