FR2489002A1 - Multichannel tape for enclosing optical fibre - to be wound about telecommunication cable, to protect fibres during mfr. of armoured cable for underwater use - Google Patents

Multichannel tape for enclosing optical fibre - to be wound about telecommunication cable, to protect fibres during mfr. of armoured cable for underwater use Download PDF

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Publication number
FR2489002A1
FR2489002A1 FR8018347A FR8018347A FR2489002A1 FR 2489002 A1 FR2489002 A1 FR 2489002A1 FR 8018347 A FR8018347 A FR 8018347A FR 8018347 A FR8018347 A FR 8018347A FR 2489002 A1 FR2489002 A1 FR 2489002A1
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FR
France
Prior art keywords
cable core
tape
core according
ribbon
tubes
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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
Application number
FR8018347A
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French (fr)
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FR2489002B1 (en
Inventor
Bernard Grenat
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.)
TRANSMISSIONS OPTIQ CIE LYONNA
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TRANSMISSIONS OPTIQ CIE LYONNA
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Publication date
Application filed by TRANSMISSIONS OPTIQ CIE LYONNA filed Critical TRANSMISSIONS OPTIQ CIE LYONNA
Priority to FR8018347A priority Critical patent/FR2489002A1/en
Publication of FR2489002A1 publication Critical patent/FR2489002A1/en
Application granted granted Critical
Publication of FR2489002B1 publication Critical patent/FR2489002B1/fr
Granted legal-status Critical Current

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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
    • G02B6/4407—Optical cables with internal fluted support member
    • 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
    • G02B6/4403—Optical cables with ribbon structure
    • 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

Abstract

Optical fibres to be incorporated into a telecommunication cable having a strong steel core e.g. for underwater signal repeater cables, are preassembled into individual hollow channels on a flexible strip which can be wound helically about the core. The strip may be a laminate of a flat tape and a tape having longitudinal channels of e.g. triangular or trapezoidal section. The channels are filled with a polymerisable hydrophobic matl. such as polybutene. Enclosure protects the optical fibres during lay-up about the core and subsequent envelopment by insulating and/or armoured sheaths or covers. It is also simpler to assemble than designs where the cables are laid in open superficial channels along the coreor a coaxial sleeve. The multichannel tape is pref. secured by overwrapping with polyethylene terephthalate tape prior to envelopment by a sheath of high density polyethylene. The multichannel strip is opt. made by laminating flat and undulating strips of ductile Al sheet coated with polyethylene and welded together. Pref. the steel core cable is coated with a sheath of polyethylene and welded together. Pref. the steel core cable is coated with a sheath of polyurethane.

Description

Noyau de câble de télécommunication à fibres optiques
La présente invention concerne les câbles de télécommunication à fibres optiques et plus particulièrement les câbles sous-marins à répéteurs.Fiber optic telecommunication cable core
The present invention relates to optical fiber telecommunication cables and more particularly to submarine cables with repeaters.

Dans des réalisations connues, les fibres optiques destinées à la réalisation de cibles sous-marins sont soient enroulées librement en hélice dans l'espace compris entre un élément porteur central et une gaine de protection renforcée de fils d'acier formant voûte, cet espace étant rempli de matériau hydrofuge, tel que du polyuréthane, soient placées dans des rainures hélicofdales creusées à la périphérie d'un cylindre métallique contenant lui-meme un élément porteur central, les rainures étant fermées par des rubans plastiques ou métalliques enroulés en hélice à pas court. In known embodiments, the optical fibers intended for the production of submarine targets are freely wound in a helix in the space between a central support element and a protective sheath reinforced with steel wires forming an arch, this space being filled with water-repellent material, such as polyurethane, are placed in helical grooves hollowed out at the periphery of a metal cylinder itself containing a central support element, the grooves being closed by plastic or metallic ribbons wound in a helix with short pitch .

Ces solutions ne sont pas entièrement satisfaisantes. En effet, si les fibres sont mises en place sans protection autour de 11 élément porteur, des risques d'endommagement existent pendant la durée de l'opération. Dans le cas de mise en place des fibres sur un cylindre rainuré, la réalisation des rainures à la périphérie d'un cylindre et la mise en place des fibres dans ces rainures sont des opérations difficiles et délicates, de plus, des risques d'endommagement des fibres existent aussi pendant toute la durée de l'opération de mise en place. These solutions are not entirely satisfactory. Indeed, if the fibers are put in place without protection around the carrier element, risks of damage exist during the duration of the operation. In the case of placing fibers on a grooved cylinder, making the grooves on the periphery of a cylinder and placing the fibers in these grooves are difficult and delicate operations, in addition, the risk of damage fibers also exist throughout the duration of the placement operation.

La présente invention porte donc sur un noyau de câble à fibres optiques permettant dtéviter les problèmes cités ci-avant en offrant une solution dans laquelle les fibres sont protégées avant leur mise en place sur l'élément porteur central. The present invention therefore relates to a core of optical fiber cable making it possible to avoid the problems mentioned above by offering a solution in which the fibers are protected before they are placed on the central support element.

Elle a pour objet un noyau de câble de télécommunication à fibres optiques et élément porteur central, caractérisé en ce qu'il comporte un ruban souple, à tubes internes s'étendant sur sa longueur, remplis de composé polymérisable et dans lesquels sont logées les fibres optiques respectives, dit ruban à fibres, monté et maintenu sur ledit élément porteur en l'entourant. It relates to a core of telecommunication cable with optical fibers and central support element, characterized in that it comprises a flexible ribbon, with internal tubes extending over its length, filled with polymerizable compound and in which the fibers are housed. respective optics, said fiber ribbon, mounted and maintained on said carrier element by surrounding it.

Selon une réalisation particulière, le ruban à fibres est posé longitudinalement sur ledit élément porteur et replié sur celui-ci pour l'entourer, la largeur dudit ruban eorrespondant sensiblement à la périphérie dudit élément porteur pour une mise sensiblement bord à bord des deux bords longitudinaux du ruban sur cet élément porteur. According to a particular embodiment, the fiber ribbon is placed longitudinally on said carrier element and folded over it to surround it, the width of said ribbon corresponding substantially to the periphery of said carrier element for placing the two longitudinal edges substantially edge to edge tape on this carrier element.

Selon une autre réalisation, le ruban à fibres est enroulé en hélice, à spires sensiblement jointives sur ledit élément porteur. According to another embodiment, the fiber ribbon is wound in a helix, with substantially contiguous turns on said carrier element.

D'autres caractéristiques et les avantages de l'invention apparaitront au cours de la description qui va suivre d'exemple de réalisation, donnés en se référant aux dessins annexés. Dans ces dessins
- la figure 1 représente en coupe transversale très agrandie un noyau de câble à fibres optiques, selon l'invention
- la figure 2 illustre l'élément à fibres rentrant dans le mode de réalisation selon la figure 1
- la figure 3 est une coupe transversale très agrandie d'un noyau de câble à fibres, selon une variante de la figure 1
- la figure 4 illustre l'élément à fibres rentrant dans cette variante.Other characteristics and advantages of the invention will appear during the description which follows of an exemplary embodiment, given with reference to the appended drawings. In these drawings
- Figure 1 shows in greatly enlarged cross section a fiber optic cable core, according to the invention
- Figure 2 illustrates the fiber element included in the embodiment according to Figure 1
- Figure 3 is a greatly enlarged cross section of a fiber cable core, according to a variant of Figure 1
- Figure 4 illustrates the fiber element entering this variant.

En se reportant à la figure 1 qui représente une coupe d'un noyau de câble sous-marin à fibres optiques construit conformément à l'invention, on voit que le noyau comporte un élément porteur central 1, un élément 2 à fibres posé autour de l'élément porteur central et maintenu par un ruban 3, dit ruban de maintien, et une gaine 4 entourant l'ensemble.  Referring to Figure 1 which shows a section of a submarine fiber optic cable core constructed in accordance with the invention, it can be seen that the core comprises a central support element 1, a fiber element 2 placed around the central support element and held by a ribbon 3, said retaining ribbon, and a sheath 4 surrounding the assembly.

L'élément porteur central 1 est ici un fil d'acier destiné à conférer au câble une résistance mécanique. Il est entouré d'une pièce isolante annulaire 5 et en contact avec cette dernière. Cette pièce annulaire 5 est une matière plastique par exemple un polyuréthane. The central support element 1 is here a steel wire intended to give the cable mechanical resistance. It is surrounded by and in contact with an annular insulating part 5. This annular part 5 is a plastic material, for example a polyurethane.

En se reportant simultanément à la figure 2, on voit que l'élément 2 à fibres optiques est constitué par un ruban souple, à tubes internes 6 s'étendant côte à côte sur sa longueur. Ces tubes 6 reçoivent les fibres optiques respectives 7 et sont remplis d'un composé polymérisable indiqué en 8, tel que de polybutène. Dans l'exemple illustré, les fibres comme les tubes sont au nombre de douze et les tubes sont de section triangulaire. Ce ruban souple 2, dit ruban à fibres, est à tubes en relief d'un même côté et dont les bases des sections sont sensiblement jointives.Il est obtenu, par exemple, par soudure de deux bandes en métal ductile recouvertes chacune sur une face d'une couche de matériau thermoplastique et thermosoudable, l'une de ces deux bandes étant imprimée pour former des gorges longitudinales de section triangulaire ; les fibres optiques sont insérées dans les tubes respectifs qui sont ensuite remplis de polybutène. Ces deux bandes sont, par exemple, en aluminium, leurs faces intérieures dans le ruban constitué étant enduites de polyéthylène et collées longitudinalement par thermofusion du polyéthylène. Referring simultaneously to FIG. 2, it can be seen that the optical fiber element 2 is constituted by a flexible strip, with internal tubes 6 extending side by side along its length. These tubes 6 receive the respective optical fibers 7 and are filled with a polymerizable compound indicated at 8, such as polybutene. In the example illustrated, the fibers like the tubes are twelve in number and the tubes are of triangular section. This flexible tape 2, called fiber tape, is in relief tubes on the same side and the bases of the sections are substantially contiguous. It is obtained, for example, by welding two strips of ductile metal each covered on one side a layer of thermoplastic and heat-sealable material, one of these two strips being printed to form longitudinal grooves of triangular section; the optical fibers are inserted into the respective tubes which are then filled with polybutene. These two strips are, for example, made of aluminum, their inner faces in the ribbon formed being coated with polyethylene and glued longitudinally by thermofusion of the polyethylene.

Ce ruban à fibres 2 est monté autour de l'élément porteur. This fiber ribbon 2 is mounted around the carrier element.

Il est soit simplement posé longitudinalement sur l'élément 1 recouvert de la pièce annulaire 5, l'arrête des tubes de section triangulaire étant en regard de la pièce 5, et recourbé transversalement pour la mise sensiblement bord à bord de ses deux bords longitudinaux,.It is either simply placed longitudinally on the element 1 covered with the annular part 5, the stop of the tubes of triangular section being opposite the part 5, and bent transversely for placing its two longitudinal edges substantially edge to edge, .

la largeur du ruban.à fibres étant alors sensiblement égale à la périphérie de l'élément qu'il entoure. Il peut aussi être enroulé en hélice à spires sensiblement jointives autour de la pièce 5, les arêtes des tubes étant contre la pièce 5.the width of the fiber ribbon then being substantially equal to the periphery of the element which it surrounds. It can also be wound in a helix with substantially contiguous turns around the part 5, the edges of the tubes being against the part 5.

Ce ruban de maintien 3 du ruban à fibres autour de la pièce annulaire 5 est un ruban en téréphtalate de polyéthylène-glycol connu sous la marque Mylar. La gaine 4 entourant l'ensemble est en polyéthylène à haute densité. This retaining tape 3 of the fiber tape around the annular part 5 is a tape made of polyethylene glycol terephthalate known under the brand Mylar. The sheath 4 surrounding the assembly is made of high density polyethylene.

Cette structure de noyau de câble est ensuite recouverte d'une armure en fils d'acier, non représentée ici, formant voûte contre les ePPets de la pression externe et formant avec l'élément porteur central 1 les éléments de résistance mécanique du câble. This cable core structure is then covered with steel wire armor, not shown here, forming a vault against the ePPets of the external pressure and forming with the central support element 1 the elements of mechanical resistance of the cable.

Dans la figure 3, à titre de variante, on a illustré une coupe de noyau de câble, et dans la figure 4 le ruban souple à fibres utilisé. In FIG. 3, as a variant, a section of the cable core has been illustrated, and in FIG. 4, the flexible fiber ribbon used.

Dans ces figures 3 et 4 les divers éléments sont affectés des références désignant les éléments qui leur correspondent dans les figures 1 et 2. La différence entre ces deux groupes de figures portent sur la section des tubes du ruban à fibres optiques, qui, dans les figures 3 et 4, est trapézoldale.L'avantage de cette variante à tubes de section trapézoidale réside essentiellement en ce que les espaces entre tubes du ruban à fibres optiques à plat (figures 2 et 4), réduits substantiellement dans le cas d'utilisation des tubes à section triangulaire lorsque le ruban à fibres optiques est monté autour de la pièce annulaire recouvrant l'élément porteur, deviennent pratiquement inexistants dans le cas d'utilisation des tubes à section trapézoidale dont les petites bases comme les grandes bases sont sensiblement jointives lorsque le ruban à fibres optiques est monté sur l'élément central
A titre d'exemple non limitatif, on indique ci-après les dimensions des divers éléments du noyau de câble à fibres optiques - diamètre de l'élément central 1 : 1,15 mm - diamètre extérieur de la pièce annulaire 5 : 1,30 mm - diamètre extérieur du ruban à fibres 2 : 3 mm - diamètre extérieur de ltenrubannage "Mylar" 3 : 3,20 mm - diamètre extérieur de la gaine de polyéthylène 4 : 4,5 mm - épaisseur de paroi des tubes 6 du ruban à fibres : 0,12 mm In these Figures 3 and 4 the various elements are assigned references designating the elements which correspond to them in Figures 1 and 2. The difference between these two groups of figures relate to the section of the tubes of the fiber optic ribbon, which, in the Figures 3 and 4 is trapezoidal. The advantage of this variant with tubes of trapezoidal section lies essentially in that the spaces between tubes of the flat optical fiber ribbon (Figures 2 and 4), reduced substantially in the case of use tubes with triangular section when the fiber optic ribbon is mounted around the annular piece covering the carrier element, become practically nonexistent in the case of use of tubes with trapezoidal section whose small bases like the large bases are substantially contiguous when the fiber optic ribbon is mounted on the central element
By way of nonlimiting example, the dimensions of the various elements of the fiber optic cable core are indicated below - diameter of the central element 1: 1.15 mm - outside diameter of the annular part 5: 1.30 mm - outside diameter of the fiber tape 2: 3 mm - outside diameter of the "Mylar" wrapping 3: 3.20 mm - outside diameter of the polyethylene sheath 4: 4.5 mm - wall thickness of the tubes 6 of the tape fibers: 0.12 mm

Claims (9)

REVENDICATIONS 1/ Noyau de câblé de télécommunication à fibres optiques et élément porteur central, caractérisé en ce qu'il comporte un ruban souple, à tubes internes s'étendant sur sa longueur, remplis de composé polymérisable et dans lesquels sont logées les fibres optiques respectives, dit ruban à fibres, monté et maintenu sur ledit élément porteur en l'entourant.CLAIMS 1 / Fiber optic telecommunication cable core and central support element, characterized in that it comprises a flexible ribbon, with internal tubes extending over its length, filled with polymerizable compound and in which the respective optical fibers are housed , said fiber ribbon, mounted and maintained on said carrier element by surrounding it. 2/ Noyau de câble selon la revendication 1, caractérisé par le fait que le ruban à fibres est posé longitudinalement sur ledit élément porteur et replié sur celui-ci pour l'entourer, la largeur dudit ruban correspondant sensiblement à la périphérie dudit élément porteur pour une mise sensiblement bord à bord des deux bords longitudinaux du ruban sur cet élément porteur.2 / cable core according to claim 1, characterized in that the fiber ribbon is placed longitudinally on said carrier element and folded over it to surround it, the width of said ribbon corresponding substantially to the periphery of said carrier element for placing the two longitudinal edges of the ribbon substantially edge to edge on this carrier element. 3/ Noyau de câble selon la revendication 1, caractérisé par le fait que le ruban à fibres est enroulé en hélice à spires sensiblement jointives sur ledit élément porteur.3 / cable core according to claim 1, characterized in that the fiber ribbon is wound in a helix with substantially contiguous turns on said carrier element. 4/ Noyau de câble selon l'une des revendications 1 à 3, caractérisé par le fait que lesdits tubes sont en relief sur une même face dudit ruban à fibre constituant la face interne dans le noyau de câble.4 / cable core according to one of claims 1 to 3, characterized in that said tubes are in relief on the same face of said fiber ribbon constituting the internal face in the cable core. 5/ Noyau de câble selon l'une des revendications 1 à 4, caractérisé par le fait que lesdits tubes sont de section triangulaire.5 / cable core according to one of claims 1 to 4, characterized in that said tubes are of triangular section. 6/ Noyau de câble selon l'une des revendications 1 à 4, caractérisé par le fait que lesdits tubes sont de section trapézoldale. 6 / cable core according to one of claims 1 to 4, characterized in that said tubes are of trapezoidal section. 7/ Noyau de câble selon l'une des revendications 5 et 6, caractérisé par le fait que les bases des tubes sont sensiblement jointives.7 / cable core according to one of claims 5 and 6, characterized in that the bases of the tubes are substantially contiguous. 8/ Noyau de câble selon l'une des revendications 1 à 7, caractérisé par le fait qu'il comporte un ruban de maintien en téréphtalate de polyéthylène-glycol enrubanné autour dudit ruban à fibres.8 / cable core according to one of claims 1 to 7, characterized in that it comprises a retaining tape of polyethylene glycol terephthalate wrapped around said fiber ribbon. 9/ Noyau de câble selon la revendication 8, caractérisé par le fait qu'il comporte une gaine en polyéthylène à haute densité disposée sur ledit ruban à fibres et son ruban de maintien. 9 / cable core according to claim 8, characterized in that it comprises a sheath of high density polyethylene disposed on said fiber tape and its retaining tape.
FR8018347A 1980-08-22 1980-08-22 Multichannel tape for enclosing optical fibre - to be wound about telecommunication cable, to protect fibres during mfr. of armoured cable for underwater use Granted FR2489002A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8018347A FR2489002A1 (en) 1980-08-22 1980-08-22 Multichannel tape for enclosing optical fibre - to be wound about telecommunication cable, to protect fibres during mfr. of armoured cable for underwater use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8018347A FR2489002A1 (en) 1980-08-22 1980-08-22 Multichannel tape for enclosing optical fibre - to be wound about telecommunication cable, to protect fibres during mfr. of armoured cable for underwater use

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FR2489002A1 true FR2489002A1 (en) 1982-02-26
FR2489002B1 FR2489002B1 (en) 1984-01-27

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0107468A1 (en) * 1982-10-19 1984-05-02 Minnesota Mining And Manufacturing Company Polyethylene-terephthalate-backed adhesive tape of extreme dimensional stability
EP0163401A2 (en) * 1984-05-22 1985-12-04 Stc Plc Cables
US4696543A (en) * 1984-05-22 1987-09-29 Standard Telephone And Cables, Plc Optical fiber cable having a low permeability to hydrogen
EP0248250A1 (en) * 1986-05-21 1987-12-09 Tirfibre S.A. Method of laying and pulling a cable into a conduit, and installation for carrying out this method
EP0248935A1 (en) * 1986-06-13 1987-12-16 Kabelwerke Brugg A.-G. Optical fibre transmission cable, method and apparatus for its production
US4935170A (en) * 1986-06-13 1990-06-19 Kabelwerke Brugg A. -G Method for the manufacture of a cable with optical fibers
FR2693560A1 (en) * 1992-07-10 1994-01-14 Alcatel Cable Cylindrical fibre=optic cable with fibres arranged around central core - binds fibres together in flexible resin which is then rolled up into cylindrical cable form incorporating cord to rip open resin to re-form ribbon
US20190369342A1 (en) * 2018-05-31 2019-12-05 Sterlite Technologies Limited Bendable Ribbon for Optical Fiber Ribbon Cable

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1411563A (en) * 1972-01-27 1975-10-29 Kodak Ltd Method of producing optic fibre arrays
DE2427150A1 (en) * 1974-06-05 1976-01-02 Ruthenberg Gmbh Waermetechnik Flat plastic strips carrying optical fibres - suitable for conveying optical signals, e.g. in automobiles
DE2507648A1 (en) * 1975-02-19 1976-09-02 Siemens Ag Optical cable for information transfer coupling - has symmetrical array of optical conductors contained within pipe having longitudinal wedged seam
FR2383457A1 (en) * 1977-03-10 1978-10-06 Fort Francois REPERABLE OPTICAL FIBER CABLE
DE2902259A1 (en) * 1979-01-22 1980-07-24 Aeg Telefunken Kabelwerke Optical strip cable using two interfitted overlying bands - with corresponding grooves cooperating to define adjacent longitudinal channels containing optical fibres
EP0019026A1 (en) * 1979-05-11 1980-11-26 Societe Industrielle De Liaisons Electriques - Silec Carrier element for the realisation of unitary fibre optics cable elements and manufacturing process

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1411563A (en) * 1972-01-27 1975-10-29 Kodak Ltd Method of producing optic fibre arrays
DE2427150A1 (en) * 1974-06-05 1976-01-02 Ruthenberg Gmbh Waermetechnik Flat plastic strips carrying optical fibres - suitable for conveying optical signals, e.g. in automobiles
DE2507648A1 (en) * 1975-02-19 1976-09-02 Siemens Ag Optical cable for information transfer coupling - has symmetrical array of optical conductors contained within pipe having longitudinal wedged seam
FR2383457A1 (en) * 1977-03-10 1978-10-06 Fort Francois REPERABLE OPTICAL FIBER CABLE
DE2902259A1 (en) * 1979-01-22 1980-07-24 Aeg Telefunken Kabelwerke Optical strip cable using two interfitted overlying bands - with corresponding grooves cooperating to define adjacent longitudinal channels containing optical fibres
EP0019026A1 (en) * 1979-05-11 1980-11-26 Societe Industrielle De Liaisons Electriques - Silec Carrier element for the realisation of unitary fibre optics cable elements and manufacturing process
FR2456333A1 (en) * 1979-05-11 1980-12-05 Silec Liaisons Elec WIRING ELEMENT FOR PRODUCING OPTICAL FIBER UNIT CABLE ELEMENTS AND MANUFACTURING METHOD

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0107468A1 (en) * 1982-10-19 1984-05-02 Minnesota Mining And Manufacturing Company Polyethylene-terephthalate-backed adhesive tape of extreme dimensional stability
EP0163401A2 (en) * 1984-05-22 1985-12-04 Stc Plc Cables
EP0163401A3 (en) * 1984-05-22 1986-03-12 Stc Plc Cables
US4696543A (en) * 1984-05-22 1987-09-29 Standard Telephone And Cables, Plc Optical fiber cable having a low permeability to hydrogen
EP0248250A1 (en) * 1986-05-21 1987-12-09 Tirfibre S.A. Method of laying and pulling a cable into a conduit, and installation for carrying out this method
EP0248935A1 (en) * 1986-06-13 1987-12-16 Kabelwerke Brugg A.-G. Optical fibre transmission cable, method and apparatus for its production
US4909591A (en) * 1986-06-13 1990-03-20 Kabelwerke Brugg Ag Cable with optical fibers for signal transmission
US4935170A (en) * 1986-06-13 1990-06-19 Kabelwerke Brugg A. -G Method for the manufacture of a cable with optical fibers
FR2693560A1 (en) * 1992-07-10 1994-01-14 Alcatel Cable Cylindrical fibre=optic cable with fibres arranged around central core - binds fibres together in flexible resin which is then rolled up into cylindrical cable form incorporating cord to rip open resin to re-form ribbon
US20190369342A1 (en) * 2018-05-31 2019-12-05 Sterlite Technologies Limited Bendable Ribbon for Optical Fiber Ribbon Cable
US10884206B2 (en) * 2018-05-31 2021-01-05 Sterlite Technologies Limited Bendable ribbon for optical fiber ribbon cable

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