SE9301710L - Metod och anordning för att anordna avlyssningssäker optisk länk - Google Patents
Metod och anordning för att anordna avlyssningssäker optisk länkInfo
- 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
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)
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)
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)
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 |
-
1993
- 1993-05-18 SE SE9301710A patent/SE500286C2/sv unknown
-
1994
- 1994-05-02 EP EP94850074A patent/EP0625834B1/en not_active Expired - Lifetime
- 1994-05-02 DE DE69422547T patent/DE69422547T2/de not_active Expired - Fee Related
- 1994-05-16 US US08/242,850 patent/US5559623A/en not_active Expired - Lifetime
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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