DE2302662A1 - MESSAGE CABLE - Google Patents
MESSAGE CABLEInfo
- Publication number
- DE2302662A1 DE2302662A1 DE2302662A DE2302662A DE2302662A1 DE 2302662 A1 DE2302662 A1 DE 2302662A1 DE 2302662 A DE2302662 A DE 2302662A DE 2302662 A DE2302662 A DE 2302662A DE 2302662 A1 DE2302662 A1 DE 2302662A1
- Authority
- DE
- Germany
- Prior art keywords
- optical fibers
- basic
- protective
- cable
- bundle
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 230000006378 damage Effects 0.000 description 7
- 239000003365 glass fiber Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance 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
- G02B6/4401—Optical cables
- G02B6/441—Optical cables built up from sub-bundles
- G02B6/4413—Helical structure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Communication Cables (AREA)
- Insulated Conductors (AREA)
Description
Me Erfindung betrifft ein Nachrichtenkabel mit hoher Nachrichtenübertragungskapazität, das aus einer Vielzahl von Lichtleiterfasern aufgebaut ist.Me invention relates to a communication cable with high communication capacity, which consists of a plurality of is made up of optical fibers.
In der Nachrichtentechnik werden heute Nachrichten über gewöhnliche elektrisOhe Nachrichtenkabel übermittelt. In einem solchen kann eine große Anzahl von Leitungen mit einer Vielzahl von Nachrichtenkanälen vorhanden sein.In telecommunications today, messages are transmitted over ordinary electrical communication cables. In such, there may be a large number of lines with a large number of communication channels.
Hiermit lassen sich bereits Nachrichtenkabel mit beträchtlichen Übertragungskapazitäten aufbauen. Die maximale Übertragungsbandbreite jeder Leitung in Verbindung mit der möglichen Anzahl von in einem Kabel unterzubringenden Leitungen setzen der Übertragungskapazität {jedoch eine Grenze. Wesentlich größere Übertragungsbandbreiten sind in Lichtwellenleitern möglich. Darüber hinaus sind die einzelnen Lichtleiter so dünn, daß die Zusammenfassung eine beträchtliche Anzahl von Lichtleitern in einem Kabel möglich erscheint. Somit sollte es möglich sein, in einem aus Lichtleitern bestehenden Kabel eine weit größere Übertragungskapazität zu erzielen als mit üblichen Nachrichtenkabeln.Communication cables with considerable transmission capacities can already be set up in this way. The maximum transmission bandwidth each line in connection with the possible number of lines to be accommodated in a cable however, set a limit to the transmission capacity. Much larger transmission bandwidths are in fiber optic cables possible. In addition, the individual light guides are so thin that the summary is considerable Number of light guides in a cable seems possible. Thus it should be possible to use an optical fiber Cable to achieve a far greater transmission capacity than with conventional communication cables.
Aufgabe der Erfindung ist es, ein aus Lichtleitern aufgebautes Kabel zur Nachrichtenübertragung anzugeben, das eine Vielzahl von Nachrichtenkanälen aufnimmt und welches gegen mechanische, thermische und chemische Einflüsse widerstandsfähig ist. ■ ' .The object of the invention is to provide a cable constructed from optical fibers for the transmission of messages, the one Accepts a large number of communication channels and which is resistant to mechanical, thermal and chemical influences is. ■ '.
Diese Aufgabe wird erfindungsgemäß gelöst durch die Kombination folgender MerkmaleAccording to the invention, this object is achieved by the combination of the following features
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ORiGlNAL INSPECTEDORiGlNAL INSPECTED
a) eine Vielzahl von mit endlicher Schlaglänge lose miteinander verdrallter Lichtleitfasern ist au einem Grundbündel zusammengefaßt und ummantelt,a) a large number of optical fibers loosely twisted with one another with a finite lay length are on a basic bundle gathered and encased,
b) alle Lichtleitfasern sind mit einer Schutzschicht umgeben, c)· mehrere Grundbündel sind mit einem mit Spiel aufgebrachten ersten Schutzmantel umhüllt,b) all optical fibers are covered with a protective layer, c) several basic bundles are covered with a first protective cover with play,
d) auf dem ersten Schutzmantel ist eine Metallfolie angeordnet,d) a metal foil is arranged on the first protective jacket,
e) auf der Metallfolie ist ein zweiter Schutzmantel angeordnet,e) a second protective jacket is arranged on the metal foil,
f) zwischen den Grundbündeln sind ein oder mehrere Zugentlastungsdrähte angeordnet undf) there are one or more strain relief wires between the basic bundles arranged and
g) die Räume zwischen den Lichtleitfasern und die Eäume zwischen den Grundbündeln sind mit Gleitmitteln ausgefüllt.g) the spaces between the optical fibers and the spaces between the basic bundles are filled with lubricants.
Da zur Übertragung von Nachrichten auf optischem Weg auch gekrümmte Lichtleitfasern mit Durchmessern von einigen Zehntel Millimetern verwendet werden, lassen sich viele tausend Lichtleitfasern zu einem dünnen Lichtleitfaserbündel zusammenfassen. Zur Vermeidung der äußeren und gegenseitigen mechanischen Verletzung als auch zur Vermeidung des Übersprechens sind die Lichtleitfasern mit einer Schutzschicht umgeben, welche biegsam ist, einen niedrigen Reibungskoeffizienten, eine feohe Absorption aufweist .und unangreifbar durch dampfförmiges und tropfbares Wasser ist. Dann kann nämlich Licht an Inhomogenitäten einer Faser nicht mehr nach außen gestreut werden und. in Nachbarfasern übertreten. Jedes Grundbündel enthält so viele Lichtleitfasern, daß der Gesamtdurchmesser einschlieSiieli Schutzmantel eines Grundbündels so groß ist, daß eine Verseilung auf den üblichen Aderverseilmaschinen für nachrichtenkabel möglich ist. Mehrere Grundbündel sind mit einem ersten Schutzmantel umhüllt, der mit Spiel aufgebracht ist, damit das gesamte Kabel beim Verlegen ohne Beschädigurgsgefate gebogen werden kann. Um das Kabel in Kanälen einziehbar zu machen, sind zwischen den Bündeln ein oder mehrere Zugentlastungselemente aus Metall oder Kunststoff hoher Festigkeit unter die Bündel eingeseilt. Zur Vermeidung des Eindringens vonAlso curved for the transmission of messages by optical means Optical fibers with diameters of a few tenths of a millimeter are used, many thousands of optical fibers can be used combine them into a thin bundle of optical fibers. To avoid the external and mutual mechanical Injury and to avoid crosstalk, the optical fibers are surrounded with a protective layer, which is flexible, has a low coefficient of friction, has low absorption and is impervious to vapor and is drip water. Then light can no longer be scattered outwards at inhomogeneities in a fiber will and. trespass in neighboring fibers. Each basic bundle contains so many optical fibers that the total diameter includes The protective sheath of a basic bundle is so large that it can be stranded on the usual core stranding machines for message cable is possible. Several basic bundles are included a first protective jacket, which is applied with play, so that the entire cable during laying without damage can be bent. To make the cable retractable in ducts, one or more strain relief elements are placed between the bundles made of high-strength metal or plastic roped under the bundle. To avoid the ingress of
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¥asserdampf und anderen in der Umgebung des Kabels vorliegenden Dämpfen in das Kabel ist dieser erste Schutzmantel mit einer Metallfolie als Dampfsperre umwickelt. Auf dieser ist ein äußerer zweiter Schutzmantel angeordnet, welcher äußeren Beschädigungen beim Verlegen V/iderstand leistet. Da sich beim Verlegen des Kabels sowohl die Lichtleitfasern als auch die Grundbündel gegeneinander verschieben, sind zwischen den Lichtleitfasern und zwischen den Grundbündeln ^leitmittel zur Vermeidung mechanischer Verletzungen angeordnet. Die Gleitmittel verhindern gleichzeitig eine optische dopplung von benachbarten Fasern.¥ water vapor and others in the vicinity of the cable This first protective sheath is wrapped in a metal foil as a vapor barrier for steaming into the cable. On this an outer, second protective jacket is arranged, which causes external damage when laying. Since both the optical fibers and the basic bundle move against each other when the cable is being laid arranged between the optical fibers and between the basic bundles ^ conductive means to avoid mechanical injuries. At the same time, the lubricants prevent optical duplication of neighboring fibers.
Nur beim Vorliegen aller dieser Einzelmerkmale ergibt sich ein Bündelmultiplexsystem großer Nachrichtenübertragungskapazität, welches einen gegen alle äußeren Einflüsse widerstandsfähigen Aufbau besitzt.Only if all of these individual features are present does a bundle multiplex system with a large message transmission capacity result, which has a structure that is resistant to all external influences.
Pur die Übersicht bei Anschluß- und Reparaturarbeiten sind die Grundbündel und die Schutzschichten über den Lichtleitfasern durch eine individuelle Farbkennzeichnung äußerlich ■unterscheidbar gemacht.Purely the overview for connection and repair work are the basic bundle and the protective layers over the optical fibers by means of individual color coding on the outside ■ made distinguishable.
Weitere Einzelheiten sind in einem Ausführungsbeispiel in der Figurenbeschreibung beschrieben.Further details are described in an exemplary embodiment in the description of the figures.
Figur 1 zeigt einen Querschnitt durch ein erfindungsgemäßesFigure 1 shows a cross section through an inventive
optisches Kabel,
Figur 2 eine Seitenansicht eines Grundbündels.optical cable,
Figure 2 is a side view of a basic bundle.
In der Figur 1 sind drei Grundbündel 1 mit verdrallten Glasfasern 2 mit einigen zehntel Millimetern Durchmesser dargestellt. Zur Vermeidung von gegenseitigen mechanischen Verletzungen und gegenseitiger optischer Beeinflussung ist jede einzelne Glasfaser mit einer Faserschutzschicht überzogen, welche biegsam ist, einen niedrigen Reibungskoeffizienten undFIG. 1 shows three basic bundles 1 with twisted glass fibers 2 with a diameter of a few tenths of a millimeter. To avoid mutual mechanical injuries and mutual optical interference, each single glass fiber covered with a protective fiber layer, which is flexible, a low coefficient of friction and
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eine hohe Absorptionskonstante aufweist. Jedes Grundbündel 1 ist mit einem Grundbündelschutzmantel 3 aus Polyäthylen mit einer Rußschicht gegen UV-Einstrahlung umhüllt. Die Zwischenräume 4 zwischen den Glasfasern 2 und dem Grundbündelschutzmantel 3 sowie die Zwischenräume 5 zwischen den Grundbündelschutzmantel 3 und einem weiteren die Grundbündel 1 umfassenden Kabelschutzmantel 6 sind zur Erhöhung der Biegbarkeit -mit einem Gleitmittel aus einem gelartigen Petroleumderivat gefüllt. Innerhalb des Kabelschutzmantel 6 sind zwichen den Grundbündeln 1 Zugentlastungsdrähte 7 mit Spiel eingefügt. Die Oberfläche des Kabelschutzmantels 6 ist vollständig von einer Aluminiumfolie 8 als Dampfsperre umwickelt, auf welcher schließlich ein gegen äußere mechanische Verletzungen des Kabels widerstandsfähiger Außenmantel 9 angeordnet ist.has a high absorption constant. Each basic bundle 1 is provided with a basic bundle protective jacket 3 made of polyethylene covered with a layer of soot against UV radiation. The spaces in between 4 between the glass fibers 2 and the basic bundle protective jacket 3 and the spaces 5 between the basic bundle protective jacket 3 and a further protective cable jacket 6 comprising the basic bundle 1 are to increase the flexibility -filled with a lubricant made from a gel-like petroleum derivative. Within the protective cable jacket 6 are between the Basic bundles 1 strain relief wires 7 inserted with play. The surface of the protective cable jacket 6 is completely of one Aluminum foil 8 wrapped as a vapor barrier, on which finally a protection against external mechanical damage to the cable resistant outer jacket 9 is arranged.
In der Figur 2 sind innerhalb des Grundbündelschutzmantels 3 die mit den Faserschutzschichten überzogenen Glasfasern 2 lose miteinander verdrallt. Dadurch werden die einzelnen Glasfasern 2 bei einer Verbiegung des Grundbündels zug- bzw. druckentlastet. Die Zwischenräume 4 sind mit dem Gleitmittel ausgefüllt, damit die Glasfasern 2 bei einer Verbiegung ohne Beschädigungsgefahr aneinander vorbeigleiten können.In FIG. 2, the glass fibers 2 coated with the fiber protection layers are loose within the basic bundle protective jacket 3 twisted with each other. As a result, the individual glass fibers 2 are relieved of tension or pressure when the basic bundle is bent. The spaces 4 are filled with the lubricant so that the glass fibers 2 without the risk of damage if they are bent can slide past each other.
Die Krümmungsradien der Glasfasern sind so gewählt, daß Strahlungsverluste vermieden werden und daß das Kabel bei Mono- und bei Multimodebetrieb verwendet werden kann.The radii of curvature of the glass fibers are chosen so that radiation losses are avoided and that the cable at Can be used in mono and multimode operation.
2 Figuren2 figures
2 Patentansprüche2 claims
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Claims (2)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732302662 DE2302662C2 (en) | 1973-01-19 | 1973-01-19 | Communication cable |
| GB5726073A GB1423590A (en) | 1973-01-19 | 1973-12-11 | Communications cables |
| JP49007601A JPS5834804B2 (en) | 1973-01-19 | 1974-01-17 | connection cable |
| FR7401740A FR2214900B1 (en) | 1973-01-19 | 1974-01-18 | |
| US05/698,153 US4072398A (en) | 1973-01-19 | 1976-06-21 | Communication cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732302662 DE2302662C2 (en) | 1973-01-19 | 1973-01-19 | Communication cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2302662A1 true DE2302662A1 (en) | 1974-07-25 |
| DE2302662C2 DE2302662C2 (en) | 1983-09-01 |
Family
ID=5869457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732302662 Expired DE2302662C2 (en) | 1973-01-19 | 1973-01-19 | Communication cable |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5834804B2 (en) |
| DE (1) | DE2302662C2 (en) |
| FR (1) | FR2214900B1 (en) |
| GB (1) | GB1423590A (en) |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2528991A1 (en) * | 1974-07-30 | 1976-02-12 | Pirelli | ELEMENT OF UN DETERMINED LENGTH WITH OPTICAL FIBER |
| DE2449439A1 (en) * | 1974-10-15 | 1976-04-29 | Siemens Ag | MESSAGE CABLES WITH OPTICAL TRANSMISSION ELEMENTS |
| DE2604307A1 (en) * | 1975-02-05 | 1976-08-19 | Bicc Ltd | OPTICAL CABLE |
| DE2511019A1 (en) * | 1975-03-11 | 1976-09-23 | Siemens Ag | Core member for fibre optic cables - is fitted with reinforced centre and lubricated fibre strands to resist tension and bending |
| DE2621508A1 (en) * | 1975-05-14 | 1976-11-25 | Post Office | FIBER AND METHOD AND DEVICE FOR THEIR COATING |
| DE2551210A1 (en) * | 1975-11-12 | 1977-05-26 | Siemens Ag | Optical cable with multilayer plastic sheath - with optical fibres surrounded by casing with two layers of different plastics |
| FR2334968A1 (en) * | 1975-12-11 | 1977-07-08 | Pilkington Brothers Ltd | Multistrand core cords for multiline optical cables - to provide support for each optical line at terminal splays |
| DE2606782A1 (en) * | 1976-02-19 | 1977-09-01 | Siemens Ag | PROCESS FOR MANUFACTURING A PLASTIC SHELL ON FIBER OPTIC FIBERS OR FIBER BUNCHES |
| DE2723659A1 (en) * | 1977-05-25 | 1978-11-30 | Siemens Ag | Telecommunication cable comprising optical fibres - which run free of tension and torsional stresses by use of holding coil for support |
| DE2728642A1 (en) * | 1977-06-24 | 1979-01-04 | Siemens Ag | Moisture-tight optical fibre cable - has loose sleeve filled with liq. which hardens in situ e.g. silicone or polyester resin (NL 28.12.78) |
| DE2841828A1 (en) * | 1978-09-26 | 1980-04-17 | Siemens Ag | Optical fibre communications cable - has a plastic mass to fill hollow zone in cable |
| DE2847387A1 (en) * | 1978-10-30 | 1980-05-08 | Siemens Ag | FILLER FOR LENGTH SEALING OF ELECTRICAL OR OPTICAL MESSAGE CABLES WITH PLASTIC-INSULATED TRANSMISSION ELEMENTS |
| DE2913055A1 (en) * | 1979-03-31 | 1980-10-09 | Aeg Telefunken Kabelwerke | Electrical or optical cable with moisture prevention sheath - has composite insulating sheath with central plastic layer coated with metal deposition on both sides to keep out moisture |
| DE2948896A1 (en) * | 1979-12-05 | 1981-06-11 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Optical cable for use in vehicles - has light conducting fibres and filler strands around central carrier giving flexibility and insensibility to torsional stresses |
| US4312565A (en) * | 1978-10-30 | 1982-01-26 | Siemens Aktiengesellschaft | Gas pressure tight optical cables |
| EP0042996A3 (en) * | 1980-06-25 | 1982-06-02 | Philips Kommunikations Industrie Ag | Integral optical communication cable |
| DE3116964A1 (en) * | 1981-04-29 | 1982-11-18 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | ELECTRIC WIRE |
| DE3200760A1 (en) * | 1982-01-13 | 1983-07-21 | Siemens AG, 1000 Berlin und 8000 München | Optical cable consisting of a plurality of basic bundles |
| DE3208172A1 (en) * | 1982-03-06 | 1983-09-08 | kabelmetal electro GmbH, 3000 Hannover | Method and device for producing a basic element for optical fibre cables |
| US4420220A (en) * | 1979-06-25 | 1983-12-13 | Bicc Public Limited Company | Optical guides |
| DE3247090A1 (en) * | 1982-12-20 | 1984-06-20 | AEG-Telefunken Kabelwerke AG, Rheydt, 4050 Mönchengladbach | OPTICAL CABLE WITH A VARIETY OF BASIC ELEMENTS ARRANGED IN A COMMON COVER |
| EP0126509A3 (en) * | 1983-05-19 | 1987-03-18 | Philips Patentverwaltung Gmbh | Optical cable element or cable, and method of making it |
| EP0258839A3 (en) * | 1986-09-02 | 1989-07-19 | Siemens Aktiengesellschaft Berlin Und Munchen | Optical cable and method of making same |
| EP0256248A3 (en) * | 1986-06-27 | 1989-09-13 | American Telephone And Telegraph Company | Depressed index cladding optical fiber cable |
| EP0245752A3 (en) * | 1986-05-10 | 1989-09-20 | Sumitomo Electric Industries Limited | Fiber identification in an optical fiber composite overhead ground wire |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1461151A (en) * | 1974-08-22 | 1977-01-13 | Standard Telephones Cables Ltd | Optical fibre cables |
| US3955878A (en) * | 1975-02-13 | 1976-05-11 | International Telephone And Telegraph Corporation | Fiber optic transmission line |
| JPS5193233A (en) * | 1975-02-14 | 1976-08-16 | ||
| JPS5335019A (en) * | 1976-09-11 | 1978-04-01 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber cores and their manufacture |
| JPS5343343U (en) * | 1976-09-17 | 1978-04-13 | ||
| GB1561806A (en) * | 1976-09-22 | 1980-03-05 | Post Office | Dielectric optical waveguide cables |
| DK138564B (en) | 1976-11-09 | 1978-09-25 | Nordiske Kabel Traad | Method of manufacturing a light-conducting element for placement in a tubular casing. |
| DE2907704B2 (en) * | 1979-02-28 | 1981-03-12 | Siemens AG, 1000 Berlin und 8000 München | Stranding element for optical cables |
| JPS55133407U (en) * | 1980-03-13 | 1980-09-22 | ||
| US4375313A (en) * | 1980-09-22 | 1983-03-01 | Schlumberger Technology Corporation | Fiber optic cable and core |
| GB8417869D0 (en) * | 1984-07-13 | 1984-08-15 | Telephone Cables Ltd | Optical fibre cables |
| GB8531673D0 (en) * | 1985-12-23 | 1986-02-05 | Telephone Cables Ltd | Optical fibre units |
| DE3914365A1 (en) * | 1989-04-29 | 1990-11-08 | Rheydt Kabelwerk Ag | ELECTRIC OR OPTICAL CABLE |
| FR2684192B1 (en) * | 1991-11-26 | 1995-02-03 | Fort Fibres Optiques Rech Tec | MULTI-FIBER OPTICAL CABLE, AND ITS MANUFACTURING METHOD. |
| JPH05213406A (en) * | 1992-02-05 | 1993-08-24 | Nkk Corp | Structure to prevent garbage truck from falling into garbage pit |
| US5345526A (en) * | 1993-02-11 | 1994-09-06 | Comm/Scope | Fiber optic cable having buffer tubes with optical fiber bundles therein and method for making same |
| ES2392399T3 (en) * | 2002-12-03 | 2012-12-10 | Prysmian S.P.A. | Optical telecommunication cable with high number of controlled length fibers |
| FR2908525B1 (en) * | 2006-11-10 | 2009-06-26 | Draka Comteq France Sa Sa | FIBER OPTIC TELECOMMUNICATION CABLE |
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| DE7202166U (en) * | 1972-05-04 | Heraeus Schott Quarzschmelze Gmbh | Optical fiber |
-
1973
- 1973-01-19 DE DE19732302662 patent/DE2302662C2/en not_active Expired
- 1973-12-11 GB GB5726073A patent/GB1423590A/en not_active Expired
-
1974
- 1974-01-17 JP JP49007601A patent/JPS5834804B2/en not_active Expired
- 1974-01-18 FR FR7401740A patent/FR2214900B1/fr not_active Expired
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Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2528991A1 (en) * | 1974-07-30 | 1976-02-12 | Pirelli | ELEMENT OF UN DETERMINED LENGTH WITH OPTICAL FIBER |
| DE2449439A1 (en) * | 1974-10-15 | 1976-04-29 | Siemens Ag | MESSAGE CABLES WITH OPTICAL TRANSMISSION ELEMENTS |
| DE2604307A1 (en) * | 1975-02-05 | 1976-08-19 | Bicc Ltd | OPTICAL CABLE |
| DE2511019A1 (en) * | 1975-03-11 | 1976-09-23 | Siemens Ag | Core member for fibre optic cables - is fitted with reinforced centre and lubricated fibre strands to resist tension and bending |
| DE2621508A1 (en) * | 1975-05-14 | 1976-11-25 | Post Office | FIBER AND METHOD AND DEVICE FOR THEIR COATING |
| DE2551210A1 (en) * | 1975-11-12 | 1977-05-26 | Siemens Ag | Optical cable with multilayer plastic sheath - with optical fibres surrounded by casing with two layers of different plastics |
| FR2334968A1 (en) * | 1975-12-11 | 1977-07-08 | Pilkington Brothers Ltd | Multistrand core cords for multiline optical cables - to provide support for each optical line at terminal splays |
| DE2606782A1 (en) * | 1976-02-19 | 1977-09-01 | Siemens Ag | PROCESS FOR MANUFACTURING A PLASTIC SHELL ON FIBER OPTIC FIBERS OR FIBER BUNCHES |
| DE2723659A1 (en) * | 1977-05-25 | 1978-11-30 | Siemens Ag | Telecommunication cable comprising optical fibres - which run free of tension and torsional stresses by use of holding coil for support |
| DE2728642A1 (en) * | 1977-06-24 | 1979-01-04 | Siemens Ag | Moisture-tight optical fibre cable - has loose sleeve filled with liq. which hardens in situ e.g. silicone or polyester resin (NL 28.12.78) |
| DE2841828A1 (en) * | 1978-09-26 | 1980-04-17 | Siemens Ag | Optical fibre communications cable - has a plastic mass to fill hollow zone in cable |
| DE2847387A1 (en) * | 1978-10-30 | 1980-05-08 | Siemens Ag | FILLER FOR LENGTH SEALING OF ELECTRICAL OR OPTICAL MESSAGE CABLES WITH PLASTIC-INSULATED TRANSMISSION ELEMENTS |
| US4312565A (en) * | 1978-10-30 | 1982-01-26 | Siemens Aktiengesellschaft | Gas pressure tight optical cables |
| DE2913055A1 (en) * | 1979-03-31 | 1980-10-09 | Aeg Telefunken Kabelwerke | Electrical or optical cable with moisture prevention sheath - has composite insulating sheath with central plastic layer coated with metal deposition on both sides to keep out moisture |
| US4420220A (en) * | 1979-06-25 | 1983-12-13 | Bicc Public Limited Company | Optical guides |
| DE2948896A1 (en) * | 1979-12-05 | 1981-06-11 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Optical cable for use in vehicles - has light conducting fibres and filler strands around central carrier giving flexibility and insensibility to torsional stresses |
| EP0042996A3 (en) * | 1980-06-25 | 1982-06-02 | Philips Kommunikations Industrie Ag | Integral optical communication cable |
| DE3116964A1 (en) * | 1981-04-29 | 1982-11-18 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | ELECTRIC WIRE |
| DE3200760A1 (en) * | 1982-01-13 | 1983-07-21 | Siemens AG, 1000 Berlin und 8000 München | Optical cable consisting of a plurality of basic bundles |
| DE3208172A1 (en) * | 1982-03-06 | 1983-09-08 | kabelmetal electro GmbH, 3000 Hannover | Method and device for producing a basic element for optical fibre cables |
| DE3247090A1 (en) * | 1982-12-20 | 1984-06-20 | AEG-Telefunken Kabelwerke AG, Rheydt, 4050 Mönchengladbach | OPTICAL CABLE WITH A VARIETY OF BASIC ELEMENTS ARRANGED IN A COMMON COVER |
| AT388816B (en) * | 1982-12-20 | 1989-09-11 | Aeg Telefunken Kabelwerke | OPTICAL CABLE WITH MULTIPLE CORES, EACH OF A STABLE COVER IN WHICH AT LEAST ONE OPTICAL FIBER IS LOOSELY ARRANGED |
| EP0126509A3 (en) * | 1983-05-19 | 1987-03-18 | Philips Patentverwaltung Gmbh | Optical cable element or cable, and method of making it |
| EP0245752A3 (en) * | 1986-05-10 | 1989-09-20 | Sumitomo Electric Industries Limited | Fiber identification in an optical fiber composite overhead ground wire |
| US5067791A (en) * | 1986-05-10 | 1991-11-26 | Sumitomo Electric Industries, Ltd. | Fiber identification in an optical fiber composite overhead ground wire |
| EP0256248A3 (en) * | 1986-06-27 | 1989-09-13 | American Telephone And Telegraph Company | Depressed index cladding optical fiber cable |
| EP0258839A3 (en) * | 1986-09-02 | 1989-07-19 | Siemens Aktiengesellschaft Berlin Und Munchen | Optical cable and method of making same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2302662C2 (en) | 1983-09-01 |
| FR2214900A1 (en) | 1974-08-19 |
| FR2214900B1 (en) | 1977-08-26 |
| JPS5834804B2 (en) | 1983-07-29 |
| JPS49106339A (en) | 1974-10-08 |
| GB1423590A (en) | 1976-02-04 |
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