DE2628070B1 - Single core optical cable - Google Patents
Single core optical cableInfo
- Publication number
- DE2628070B1 DE2628070B1 DE19762628070 DE2628070A DE2628070B1 DE 2628070 B1 DE2628070 B1 DE 2628070B1 DE 19762628070 DE19762628070 DE 19762628070 DE 2628070 A DE2628070 A DE 2628070A DE 2628070 B1 DE2628070 B1 DE 2628070B1
- Authority
- DE
- Germany
- Prior art keywords
- plastic
- optical
- layer
- tensile
- jacket
- 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.)
- Ceased
Links
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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
-
- 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
- G02B6/4402—Optical cables with one single optical waveguide
-
- 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
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Description
Wenn ein wenig zugbelastbares, aber nicht brennbares optisches Kabel erwünscht ist, so genügt als äußerer Kunststoffmantel eine Umhüllung aus einem fluorierten Polymer. Wenn jedoch ein zugfestes Kabel erwünscht ist, so empfiehlt es sich, auf die doppelschichtige Kunststoffhülle eine Bespinnung aus zugfesten Kunststoffäden aufzubringen, die dann mit einem extrudierten Kunststoffmantel umgeben sind. Sofern hierbei eine schwache Flammwidrigkeit des optischen Kabels genügt, kann der Außenmantel beispielsweise aus Polyvinylchlorid, insbesondere aus weichem Polyvi-If a little tensile strength, but non-flammable optical cable is desired, a cover made of a fluorinated one is sufficient as the outer plastic jacket Polymer. However, if a tensile strength cable is required, it is advisable to use the double-layer plastic cover is made of high-tensile plastic threads apply, which are then surrounded with an extruded plastic jacket. Provided the outer sheath can suffice if the optical cable is weakly flame retardant for example made of polyvinyl chloride, especially made of soft polyvinyl
nylchlorid, oder aus einer Polyvinylchlorid/Polyurethan-Mischung bestehen.nyl chloride, or consist of a polyvinyl chloride / polyurethane mixture.
Sofern das optische Kabel besonders hohen mechanischen Beanspruchungen ausgesetzt ist, empfiehlt sich ein Mantelaufbau, bei dem die doppelschichtige Hülle zunächst mit einer ersten Umspinnung aus hochfesten Kunststoffäden und mit einem Innenmantel aus thermoplastischem Polyurethan umgeben ist. Die Bespinnung und der Innenmantel dienen als Bewehrung der Kabelseele und bieten Schutz gegen Zugbeanspruchungen und stellen ein Polster gegen äußere Druck-und Stoßbeanspruchungen dar. Auf den Innenmantel kann eine weitere Bespinnung aus hochfesten Kunststoffäden als äußerer Bewehrung aufgebracht sein, die insbesondere zur Verbesserung des Schutzes gegen Zugbeanspruchungen dient. Sie wird vorzugsweise im Gegenschlag zur inneren Bewehrung aufgebracht Anstelle der inneren Bespinnung, des Innenmantels und der äußeren Bespinnung kann mit Vorteil auch ein Geflecht aus hochfesten Kunststoffäden eingesetzt werden. Für den abschließenden äußeren Kunststoffmantel ist dann ein Material vorzusehen, das das Kabel gegen grobe mechanische Schlagbeanspruchungen und gegen Abrieb schützt. Besonders geeignet hierzu ist beispielsweise Polyvinylchlorid oder eine Mischung aus Polyvinylchlorid und Polyurethan. If the optical cable is subject to particularly high mechanical loads is exposed, a jacket structure is recommended in which the double-layer cover initially with a first wrapping made of high-strength plastic threads and with a Inner sheath made of thermoplastic polyurethane is surrounded. The spinning and the Inner sheaths serve as reinforcement of the cable core and offer protection against tensile loads and provide a cushion against external pressure and impact loads. On the The inner sheath can have a further covering made of high-strength plastic threads than the outer one Reinforcement be applied, in particular to improve protection against Tensile loads is used. It is preferably used in opposition to the internal reinforcement Applied instead of the inner lining, the inner jacket and the outer lining A mesh made of high-strength plastic threads can also be used with advantage. A material must then be provided for the final outer plastic jacket, that protects the cable against rough mechanical shock loads and against abrasion. Polyvinyl chloride or a mixture, for example, is particularly suitable for this purpose made of polyvinyl chloride and polyurethane.
Bei den im Rahmen der Erfindung verwendeten fluorierten Polymeren handelt es sich beispielsweise um Copolymere aus Athylen und Tetrafluoräthylen, um fluoriertes Äthylen-Propylen oder um Perfluoralcoxyharze. Besonders geeignet erscheint auch ein Copolymer aus Äthylen und Chlortrifluoräthylen, weil es eine relativ niedrige Verarbeitungstemperatur (etwa 250 bis 300°C) aufweist und in seinen mechanischen Eigenschaften den mechanischen Eigenschaften der optischen Glasfaser nahekommt. In the case of the fluorinated polymers used in the context of the invention is for example Copolymers of ethylene and tetrafluoroethylene to fluorinated ethylene-propylene or perfluoroalcoxy resins. Appears particularly suitable also a copolymer of ethylene and chlorotrifluoroethylene because it is a relatively low one Processing temperature (about 250 to 300 ° C) and in its mechanical Properties comes close to the mechanical properties of the optical glass fiber.
Für die weiterhin verwendeten hochfesten Kunststoffäden kommen insbesondere Fäden aus einem vorgereckten aromatischen Polyamid in Betracht. For the high-strength plastic threads that are still used, in particular Threads made of a pre-stretched aromatic polyamide into consideration.
Ein Ausführungsbeispiel eines gemäß der Erfindung ausgebildeten optischen Kabels ist in der Figur dargestellt. An embodiment of an optical device designed according to the invention Cable is shown in the figure.
Die Figur zeigt ein optisches Kabel 10, das in seinem Zentrum die optische Ader 11 enthält, die aus einer Glasfaser 12 und einem harten, elastischen Mantel 13 aus Polyäthylenterephthalat besteht. Die optische Ader 11 ist lose in einer doppelschichtigen Hülle 14 angeordnet, die aus einer inneren Schicht 15 aus einem Äthylen-Chlortrifluoräthylen-Copolymerisat und einer äußeren Schicht 16 aus Polyäthylenterephthalat besteht. The figure shows an optical cable 10, which in its center optical wire 11 contains, which consists of a glass fiber 12 and a hard, elastic Jacket 13 is made of polyethylene terephthalate. The optical wire 11 is loose in a double-layer shell 14 is arranged, which consists of an inner layer 15 an ethylene-chlorotrifluoroethylene copolymer and an outer layer 16 from Polyethylene terephthalate is made.
Darüber ist eine Bespinnung 17 aus hochfesten Kunststoffäden angeordnet; die Kunststoffäden sind mit einer kurzen Schlaglänge von etwa 5 bis 10 cm aufgeseilt. Den äußeren Schutz des optischen Kabels 10 bildet der Mantel 18 aus Weichpolyvinylchlorid.Above that is a spinning 17 made of high-strength plastic threads; the plastic threads are stranded with a short lay length of about 5 to 10 cm. The outer protection of the optical cable 10 is formed by the jacket 18 made of soft polyvinyl chloride.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762628070 DE2628070B1 (en) | 1976-06-21 | 1976-06-21 | Single core optical cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762628070 DE2628070B1 (en) | 1976-06-21 | 1976-06-21 | Single core optical cable |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2628070B1 true DE2628070B1 (en) | 1977-08-11 |
Family
ID=5981211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19762628070 Ceased DE2628070B1 (en) | 1976-06-21 | 1976-06-21 | Single core optical cable |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2628070B1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403573A1 (en) * | 1977-09-14 | 1979-04-13 | Felten & Guilleaume Carlswerk | Mechanically protected and thermally insulated optical fibre cable - comprises high-tensile core, corded fibres with silicone lubricant, polyimide coating and triple plastics tape windings (NL 16.3.79) |
DE2825845A1 (en) * | 1978-06-13 | 1980-01-03 | Siemens Ag | OPTICAL NEWS CABLE WITH REINFORCED PLASTIC SHEATH |
WO1980001517A1 (en) * | 1979-01-18 | 1980-07-24 | Western Electric Co | Optical communication cable |
FR2468135A1 (en) * | 1979-10-23 | 1981-04-30 | Foptica Sa | Optical waveguide cable mfr. - where optical fibre is surrounded by two tubes made of polymer and bonded together via reinforcing braid |
US4374608A (en) * | 1979-02-05 | 1983-02-22 | Belden Corporation | Fiber optic cable |
EP0107796A1 (en) * | 1982-10-01 | 1984-05-09 | AEG KABEL Aktiengesellschaft | Optical fire-resistant telecommunication cable |
DE3403086A1 (en) * | 1984-01-30 | 1985-08-08 | Siemens AG, 1000 Berlin und 8000 München | Tensile stress-resistant optical underwater cable |
EP0156097A1 (en) * | 1984-03-27 | 1985-10-02 | KABEL- und DRAHTWERKE Aktiengesellschaft | Cable |
DE3704053A1 (en) * | 1987-02-10 | 1988-08-18 | Siemens Ag | Optical waveguide with a sleeve enclosing it |
EP0454433A2 (en) * | 1990-04-27 | 1991-10-30 | AT&T Corp. | Optical fiber service cable |
EP0816885A2 (en) * | 1996-06-18 | 1998-01-07 | Brugg Telecom AG | Optical cable with armouring and use of the same |
EP1094347A1 (en) * | 1999-10-18 | 2001-04-25 | Lucent Technologies Inc. | Minicord cable apparatus having high modulus buffered optical fiber and method for making |
-
1976
- 1976-06-21 DE DE19762628070 patent/DE2628070B1/en not_active Ceased
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2403573A1 (en) * | 1977-09-14 | 1979-04-13 | Felten & Guilleaume Carlswerk | Mechanically protected and thermally insulated optical fibre cable - comprises high-tensile core, corded fibres with silicone lubricant, polyimide coating and triple plastics tape windings (NL 16.3.79) |
DE2825845A1 (en) * | 1978-06-13 | 1980-01-03 | Siemens Ag | OPTICAL NEWS CABLE WITH REINFORCED PLASTIC SHEATH |
WO1980001517A1 (en) * | 1979-01-18 | 1980-07-24 | Western Electric Co | Optical communication cable |
US4241979A (en) * | 1979-01-18 | 1980-12-30 | Bell Telephone Laboratories, Incorporated | Optical communication cable with means for controlling coupling between cable jacket and strength members |
US4374608A (en) * | 1979-02-05 | 1983-02-22 | Belden Corporation | Fiber optic cable |
FR2468135A1 (en) * | 1979-10-23 | 1981-04-30 | Foptica Sa | Optical waveguide cable mfr. - where optical fibre is surrounded by two tubes made of polymer and bonded together via reinforcing braid |
EP0107796A1 (en) * | 1982-10-01 | 1984-05-09 | AEG KABEL Aktiengesellschaft | Optical fire-resistant telecommunication cable |
DE3403086A1 (en) * | 1984-01-30 | 1985-08-08 | Siemens AG, 1000 Berlin und 8000 München | Tensile stress-resistant optical underwater cable |
EP0156097A1 (en) * | 1984-03-27 | 1985-10-02 | KABEL- und DRAHTWERKE Aktiengesellschaft | Cable |
DE3704053A1 (en) * | 1987-02-10 | 1988-08-18 | Siemens Ag | Optical waveguide with a sleeve enclosing it |
EP0454433A2 (en) * | 1990-04-27 | 1991-10-30 | AT&T Corp. | Optical fiber service cable |
EP0454433A3 (en) * | 1990-04-27 | 1992-07-01 | American Telephone And Telegraph Company | Optical fiber service cable |
EP0816885A2 (en) * | 1996-06-18 | 1998-01-07 | Brugg Telecom AG | Optical cable with armouring and use of the same |
EP0816885A3 (en) * | 1996-06-18 | 1998-09-16 | Brugg Telecom AG | Optical cable with armouring and use of the same |
EP1094347A1 (en) * | 1999-10-18 | 2001-04-25 | Lucent Technologies Inc. | Minicord cable apparatus having high modulus buffered optical fiber and method for making |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8225 | Change of the main classification |
Ipc: G02B 5/16 |
|
8235 | Patent refused |