CA1047810A - Fibre optique protegee contre l'ecoute electronique - Google Patents

Fibre optique protegee contre l'ecoute electronique

Info

Publication number: CA1047810A
Authority: CA; Canada
Prior art keywords: light conducting; layer; signal; optical fibre; core
Prior art date: 1976-04-13
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.): Expired

Application number

CA250,174A

Other languages

English (en)

Inventor

Felix P. Kapron

Frederick D. King

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.)

Nortel Networks Ltd

Original Assignee

Northern Telecom Ltd

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.)

1976-04-13

Filing date

1976-04-13

Publication date

1979-02-06

1976-04-13 Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd

1976-04-13 Priority to CA250,174A priority Critical patent/CA1047810A/fr

1979-02-06 Application granted granted Critical

1979-02-06 Publication of CA1047810A publication Critical patent/CA1047810A/fr

Status Expired legal-status Critical Current

Links

239000013307 optical fiber Substances 0.000 title claims abstract description 22
238000010079 rubber tapping Methods 0.000 title abstract description 5
239000000835 fiber Substances 0.000 claims abstract description 34
238000005253 cladding Methods 0.000 claims abstract description 29
239000000463 material Substances 0.000 claims description 2
238000012544 monitoring process Methods 0.000 abstract description 4
230000000644 propagated effect Effects 0.000 abstract 2
230000004075 alteration Effects 0.000 abstract 1
238000000034 method Methods 0.000 description 10
230000003287 optical effect Effects 0.000 description 7
230000008901 benefit Effects 0.000 description 5
230000005540 biological transmission Effects 0.000 description 4
230000011664 signaling Effects 0.000 description 4
238000001514 detection method Methods 0.000 description 3
230000000694 effects Effects 0.000 description 3
238000002955 isolation Methods 0.000 description 2
238000002310 reflectometry Methods 0.000 description 2
230000035945 sensitivity Effects 0.000 description 2
239000004593 Epoxy Substances 0.000 description 1
UIQMVEYFGZJHCZ-SSTWWWIQSA-N Nalorphine Chemical compound C([C@@H](N(CC1)CC=C)[C@@H]2C=C[C@@H]3O)C4=CC=C(O)C5=C4[C@@]21[C@H]3O5 UIQMVEYFGZJHCZ-SSTWWWIQSA-N 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
230000003321 amplification Effects 0.000 description 1
238000005452 bending Methods 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
239000002131 composite material Substances 0.000 description 1
230000008878 coupling Effects 0.000 description 1
238000010168 coupling process Methods 0.000 description 1
238000005859 coupling reaction Methods 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
230000005684 electric field Effects 0.000 description 1
230000002708 enhancing effect Effects 0.000 description 1
238000005755 formation reaction Methods 0.000 description 1
230000036039 immunity Effects 0.000 description 1
230000001939 inductive effect Effects 0.000 description 1
238000001465 metallisation Methods 0.000 description 1
239000000203 mixture Substances 0.000 description 1
238000003199 nucleic acid amplification method Methods 0.000 description 1
230000002265 prevention Effects 0.000 description 1
230000001681 protective effect Effects 0.000 description 1
230000005855 radiation Effects 0.000 description 1
230000009467 reduction Effects 0.000 description 1
230000004044 response Effects 0.000 description 1
238000007788 roughening Methods 0.000 description 1
230000007480 spreading Effects 0.000 description 1
239000000758 substrate Substances 0.000 description 1

Classifications

- 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
- 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
- G02B6/02—Optical fibres with cladding with or without a coating

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Engineering & Computer Science (AREA)
Computer Security & Cryptography (AREA)
Optical Communication System (AREA)

CA250,174A 1976-04-13 1976-04-13 Fibre optique protegee contre l'ecoute electronique Expired CA1047810A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA250,174A CA1047810A (fr)	1976-04-13	1976-04-13	Fibre optique protegee contre l'ecoute electronique

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA250,174A CA1047810A (fr)	1976-04-13	1976-04-13	Fibre optique protegee contre l'ecoute electronique

Publications (1)

Publication Number	Publication Date
CA1047810A true CA1047810A (fr)	1979-02-06

Family

ID=4105705

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA250,174A Expired CA1047810A (fr)	1976-04-13	1976-04-13	Fibre optique protegee contre l'ecoute electronique

Country Status (1)

Country	Link
CA (1)	CA1047810A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4372648A (en) *	1979-10-29	1983-02-08	International Standard Electric Corporation	Optical fibres
EP0103835A3 (fr) *	1982-09-21	1984-05-23	Siemens Aktiengesellschaft	Capteur à fibres optiques
US4493530A (en) *	1981-08-18	1985-01-15	Hitachi Cable, Ltd.	Single polarization optical fibers
US6819849B1 (en) *	1985-10-25	2004-11-16	Hughes Electronics Corporation	Intrusion detection system for secure fiber optics
EP3018507A1 (fr) *	2014-11-06	2016-05-11	Alcatel Lucent	Dispositif et procédé pour la détection d'une atteinte à l'intégrité d'une ligne de transport d'un signal optique

1976
- 1976-04-13 CA CA250,174A patent/CA1047810A/fr not_active Expired

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4372648A (en) *	1979-10-29	1983-02-08	International Standard Electric Corporation	Optical fibres
US4493530A (en) *	1981-08-18	1985-01-15	Hitachi Cable, Ltd.	Single polarization optical fibers
EP0103835A3 (fr) *	1982-09-21	1984-05-23	Siemens Aktiengesellschaft	Capteur à fibres optiques
US6819849B1 (en) *	1985-10-25	2004-11-16	Hughes Electronics Corporation	Intrusion detection system for secure fiber optics
EP3018507A1 (fr) *	2014-11-06	2016-05-11	Alcatel Lucent	Dispositif et procédé pour la détection d'une atteinte à l'intégrité d'une ligne de transport d'un signal optique

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