SE8703491D0 - Ultraseker transmissionslenk - Google Patents

Ultraseker transmissionslenk

Info

Publication number
SE8703491D0
SE8703491D0 SE8703491A SE8703491A SE8703491D0 SE 8703491 D0 SE8703491 D0 SE 8703491D0 SE 8703491 A SE8703491 A SE 8703491A SE 8703491 A SE8703491 A SE 8703491A SE 8703491 D0 SE8703491 D0 SE 8703491D0
Authority
SE
Sweden
Prior art keywords
pct
date sep
surveillance
alarm
sec
Prior art date
Application number
SE8703491A
Other languages
English (en)
Other versions
SE459052B (sv
SE8703491L (sv
Inventor
S Karlsson
Original Assignee
Forsvarets Forsknings
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 Forsvarets Forsknings filed Critical Forsvarets Forsknings
Priority to SE8703491A priority Critical patent/SE459052B/sv
Publication of SE8703491D0 publication Critical patent/SE8703491D0/sv
Priority to PCT/SE1989/000116 priority patent/WO1990010921A1/en
Priority to DE68918953T priority patent/DE68918953T2/de
Priority to JP1503825A priority patent/JP2920233B2/ja
Priority to US07/752,575 priority patent/US5349458A/en
Priority to EP89904269A priority patent/EP0462102B1/en
Publication of SE8703491L publication Critical patent/SE8703491L/sv
Publication of SE459052B publication Critical patent/SE459052B/sv
Priority to FI914199A priority patent/FI103367B/sv
Priority to NO913525A priority patent/NO304857B1/no
Priority to DK157991A priority patent/DK172232B1/da

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • G08B13/186—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier using light guides, e.g. optical fibres
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4469—Security aspects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Optics & Photonics (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Alarm Systems (AREA)
SE8703491A 1987-09-09 1987-09-09 Saett att detektera yttre paaverkan paa en optisk kabel SE459052B (sv)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE8703491A SE459052B (sv) 1987-09-09 1987-09-09 Saett att detektera yttre paaverkan paa en optisk kabel
EP89904269A EP0462102B1 (en) 1987-09-09 1989-03-09 A method for detecting external influence on an optical cable
US07/752,575 US5349458A (en) 1987-09-09 1989-03-09 Method for detecting external influence on an optical cable
DE68918953T DE68918953T2 (de) 1987-09-09 1989-03-09 Verfahren zum nachweis eines externen einflusses auf ein optisches kabel.
JP1503825A JP2920233B2 (ja) 1987-09-09 1989-03-09 光ケーブルの外的影響を検出するための方法
PCT/SE1989/000116 WO1990010921A1 (en) 1987-09-09 1989-03-09 A method for detecting external influence on an optical cable
FI914199A FI103367B (sv) 1987-09-09 1991-09-05 Sätt att detektera yttre påverkan på en optisk kabel
NO913525A NO304857B1 (no) 1987-09-09 1991-09-06 FremgangsmÕte til deteksjon av ytre pÕvirkninger pÕ en optisk kabel
DK157991A DK172232B1 (da) 1987-09-09 1991-09-09 Fremgangsmåde til detektering af ydre påvirkning på et optisk kabel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8703491A SE459052B (sv) 1987-09-09 1987-09-09 Saett att detektera yttre paaverkan paa en optisk kabel

Publications (3)

Publication Number Publication Date
SE8703491D0 true SE8703491D0 (sv) 1987-09-09
SE8703491L SE8703491L (sv) 1989-03-10
SE459052B SE459052B (sv) 1989-05-29

Family

ID=20369517

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8703491A SE459052B (sv) 1987-09-09 1987-09-09 Saett att detektera yttre paaverkan paa en optisk kabel

Country Status (9)

Country Link
US (1) US5349458A (sv)
EP (1) EP0462102B1 (sv)
JP (1) JP2920233B2 (sv)
DE (1) DE68918953T2 (sv)
DK (1) DK172232B1 (sv)
FI (1) FI103367B (sv)
NO (1) NO304857B1 (sv)
SE (1) SE459052B (sv)
WO (1) WO1990010921A1 (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9301710L (sv) * 1993-05-18 1994-05-30 Televerket Metod och anordning för att anordna avlyssningssäker optisk länk
US5534996A (en) * 1993-09-21 1996-07-09 Advantest Corporation Measurement apparatus for evaluating characteristics of light emitting devices
US6933845B2 (en) * 2003-04-08 2005-08-23 Lockheed Martin Corporation Photon intrusion detector
US7512336B1 (en) * 2004-06-10 2009-03-31 Cisco Technology, Inc. Optical failure detection using polarization
US7903977B2 (en) * 2004-10-06 2011-03-08 The Board Of Regents Of The University Of Oklahoma Method for polarization-based intrusion monitoring in fiberoptic links
US8094977B2 (en) 2005-01-12 2012-01-10 Network Integrity Systems Inc. Intrusion detection system for use on single mode optical fiber using a simplified polarimeter
US20120196685A1 (en) * 2011-01-31 2012-08-02 Aha Concepts, Inc., A Delaware Corporation System and method of using directed energy to monitor or manipulate a gaming device
IT202200004667A1 (it) 2022-03-11 2022-06-11 Sestosensor S R L Rivelatore di fase e polarizzazione per sensori acustici distribuiti a fibre ottiche ed interrogatore basato sullo stesso

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292628A (en) * 1978-08-28 1981-09-29 Chubb Industries Limited Fibre optic security system
US4297684A (en) * 1979-03-26 1981-10-27 Honeywell Inc. Fiber optic intruder alarm system
JPS5761926A (en) * 1980-09-30 1982-04-14 Shimadzu Corp Temperature sensor
US4525626A (en) * 1982-03-24 1985-06-25 Sperry Corporation Fiber optic vibration modal sensor
US4480916A (en) * 1982-07-06 1984-11-06 The United States Of America As Represented By The Secretary Of The Navy Phase-modulated polarizing interferometer
US4495411A (en) * 1982-10-27 1985-01-22 The United States Of America As Represented By The Secretary Of The Navy Fiber optic sensors operating at DC
SE438396B (sv) * 1983-09-01 1985-04-15 Ericsson Telefon Ab L M Anordning for att detektera avtappning av ljusenergi fran optiska fibrer
US4591709A (en) * 1983-12-19 1986-05-27 Walter Koechner Optical fiber security system
US4583855A (en) * 1984-02-17 1986-04-22 Lockheed Missiles & Space Company, Inc. Optical phase measuring apparatus
US4633235A (en) * 1984-12-20 1986-12-30 Degennaro Charles S Optical cable security system with standby and automatic re-arming features
US4653915A (en) * 1985-04-12 1987-03-31 The United States Of America As Represented By The Secretary Of The Navy Method for reduction of polarization fading in interferometers
JPS61281988A (ja) * 1985-06-07 1986-12-12 Sogo Keibi Hoshiyou Kk 光フアイバを用いた異常検知装置
US4931771A (en) * 1988-09-27 1990-06-05 Anro Engineering, Inc. Optical fiber intrusion location sensor for perimeter protection of precincts
SE463385B (sv) * 1989-03-08 1990-11-12 Stefan Karlsson Saett att utnyttja en optisk fiber som sensor

Also Published As

Publication number Publication date
US5349458A (en) 1994-09-20
DK157991D0 (da) 1991-09-09
DK157991A (da) 1991-09-09
SE459052B (sv) 1989-05-29
NO304857B1 (no) 1999-02-22
JP2920233B2 (ja) 1999-07-19
EP0462102A1 (en) 1991-12-27
DE68918953D1 (de) 1994-11-24
FI103367B1 (sv) 1999-06-15
FI103367B (sv) 1999-06-15
SE8703491L (sv) 1989-03-10
FI914199A0 (fi) 1991-09-05
EP0462102B1 (en) 1994-10-19
NO913525L (no) 1991-09-06
DK172232B1 (da) 1998-01-26
WO1990010921A1 (en) 1990-09-20
JPH04503997A (ja) 1992-07-16
DE68918953T2 (de) 1995-05-18
NO913525D0 (no) 1991-09-06

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