SE9301710L - Metod och anordning för att anordna avlyssningssäker optisk länk - Google Patents

Metod och anordning för att anordna avlyssningssäker optisk länk

Info

Publication number
SE9301710L
SE9301710L SE9301710A SE9301710A SE9301710L SE 9301710 L SE9301710 L SE 9301710L SE 9301710 A SE9301710 A SE 9301710A SE 9301710 A SE9301710 A SE 9301710A SE 9301710 L SE9301710 L SE 9301710L
Authority
SE
Sweden
Prior art keywords
tapped
energy
ppm
probability
hand
Prior art date
Application number
SE9301710A
Other languages
English (en)
Other versions
SE9301710D0 (sv
SE500286C2 (sv
Inventor
Goeran Einarsson
Original Assignee
Televerket
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 Televerket filed Critical Televerket
Priority to SE9301710A priority Critical patent/SE500286C2/sv
Publication of SE9301710D0 publication Critical patent/SE9301710D0/sv
Priority to EP94850074A priority patent/EP0625834B1/en
Priority to DE69422547T priority patent/DE69422547T2/de
Priority to US08/242,850 priority patent/US5559623A/en
Publication of SE9301710L publication Critical patent/SE9301710L/sv
Publication of SE500286C2 publication Critical patent/SE500286C2/sv

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Dc Digital Transmission (AREA)
SE9301710A 1993-05-18 1993-05-18 Metod och anordning för att anordna avlyssningssäker optisk länk SE500286C2 (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9301710A SE500286C2 (sv) 1993-05-18 1993-05-18 Metod och anordning för att anordna avlyssningssäker optisk länk
EP94850074A EP0625834B1 (en) 1993-05-18 1994-05-02 Method and arrangement for arranging an interception-proof optical link
DE69422547T DE69422547T2 (de) 1993-05-18 1994-05-02 Verfahren und Anordnung für eine abhörsichere optische Verbindung
US08/242,850 US5559623A (en) 1993-05-18 1994-05-16 Method and arrangement for arranging an interception-proof optical link

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9301710A SE500286C2 (sv) 1993-05-18 1993-05-18 Metod och anordning för att anordna avlyssningssäker optisk länk

Publications (3)

Publication Number Publication Date
SE9301710D0 SE9301710D0 (sv) 1993-05-18
SE9301710L true SE9301710L (sv) 1994-05-30
SE500286C2 SE500286C2 (sv) 1994-05-30

Family

ID=20389984

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9301710A SE500286C2 (sv) 1993-05-18 1993-05-18 Metod och anordning för att anordna avlyssningssäker optisk länk

Country Status (4)

Country Link
US (1) US5559623A (sv)
EP (1) EP0625834B1 (sv)
DE (1) DE69422547T2 (sv)
SE (1) SE500286C2 (sv)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6118565A (en) * 1997-09-30 2000-09-12 Lucent Technologies Inc. Coherent optical communication system
US20140186033A1 (en) * 2012-12-28 2014-07-03 Alcatel-Lucent Usa Inc. Secure data transmission via spatially multiplexed optical signals
US10284288B2 (en) 2016-02-18 2019-05-07 Apriori Network Systems, Llc Secured fiber link system
US10763962B2 (en) 2016-02-18 2020-09-01 Apriori Network Systems, Llc. Secured fiber link system
US10784969B2 (en) * 2016-02-18 2020-09-22 Apriori Network Systems, Llc. Secured fiber link system
WO2021024306A1 (ja) * 2019-08-02 2021-02-11 日本電信電話株式会社 通信装置、及び通信方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4217488A (en) * 1977-01-21 1980-08-12 Bell Telephone Laboratories, Incorporated Secure optical communication components, method, and system
US4166212A (en) * 1977-06-03 1979-08-28 International Standard Electric Corporation Recirculating optical delay line
GB2060869B (en) * 1979-10-16 1983-11-02 Standard Telephones Cables Ltd Secure optical data systems
US4616898A (en) * 1980-03-31 1986-10-14 Polaroid Corporation Optical communication systems using raman repeaters and components therefor
US4435850A (en) * 1982-02-16 1984-03-06 International Telephone And Telegraph Corporation Secure fiber optic data transmission system
DE3379767D1 (en) * 1982-09-02 1989-06-01 British Telecomm Optical communication
SE438396B (sv) * 1983-09-01 1985-04-15 Ericsson Telefon Ab L M Anordning for att detektera avtappning av ljusenergi fran optiska fibrer
GB2157523A (en) * 1984-04-09 1985-10-23 Marconi Co Ltd Secure optical communication system
US4648133A (en) * 1984-08-07 1987-03-03 The Unites States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Synchronization tracking in pulse position modulation receiver
SE459052B (sv) * 1987-09-09 1989-05-29 Foersvarets Forskningsanstalt Saett att detektera yttre paaverkan paa en optisk kabel
GB8928699D0 (en) * 1989-12-20 1990-02-28 Int Computers Ltd Data communications system
US5165091A (en) * 1991-03-20 1992-11-17 Nec America Inc. Firmware download from a remote terminal to an optical network terminal in a digital loop carrier system

Also Published As

Publication number Publication date
EP0625834A1 (en) 1994-11-23
US5559623A (en) 1996-09-24
SE9301710D0 (sv) 1993-05-18
DE69422547T2 (de) 2000-06-29
SE500286C2 (sv) 1994-05-30
EP0625834B1 (en) 2000-01-12
DE69422547D1 (de) 2000-02-17

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