WO2003085436A1 - Cable a fibres optiques et son procede de fabrication - Google Patents

Cable a fibres optiques et son procede de fabrication Download PDF

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Publication number
WO2003085436A1
WO2003085436A1 PCT/JP2003/004390 JP0304390W WO03085436A1 WO 2003085436 A1 WO2003085436 A1 WO 2003085436A1 JP 0304390 W JP0304390 W JP 0304390W WO 03085436 A1 WO03085436 A1 WO 03085436A1
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WO
WIPO (PCT)
Prior art keywords
hole
optical fiber
cable
cable sheath
sheath
Prior art date
Application number
PCT/JP2003/004390
Other languages
English (en)
Japanese (ja)
Inventor
Kazunaga Kobayashi
Masahiro Kusakari
Shimei Tanaka
Keiji Ohashi
Original Assignee
Fujikura 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.)
Filing date
Publication date
Application filed by Fujikura Ltd. filed Critical Fujikura Ltd.
Priority to JP2003582567A priority Critical patent/JPWO2003085436A1/ja
Priority to AU2003236289A priority patent/AU2003236289A1/en
Publication of WO2003085436A1 publication Critical patent/WO2003085436A1/fr

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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
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements
    • G02B6/4433—Double reinforcement laying in straight line with optical transmission element
    • 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
    • G02B6/4431—Protective covering with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping

Definitions

  • the present invention relates to a multi-core drawn optical fiber cable and a method for manufacturing the same.
  • a single-core drop cable has been used as a drop optical fiber cable (drop cable) for on-premise or overhead use.
  • a conventional single-core optical fiber cable 1001 is composed of a single-core optical fiber core wire 1003 and an optical element tensile strength member 1005 arranged in parallel and on both sides in the vicinity thereof. Notched on the surface of the cable sheath 1007 on both sides (upper and lower in FIG. 14) of the optical fiber core wire 1003 in a direction perpendicular to the direction in which the tensile elements for optical elements 1005 are connected. A part 1009 is formed.
  • the loose tube cable and slot cable have a large outer diameter and high cost.
  • a cable that follows the drop cable 1001 is effective.
  • the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an optical fiber cable having a small diameter and excellent in loss characteristics and workability, and a method of manufacturing the same.
  • an optical fiber core comprising a plurality of strands or a plurality of tape cores, and a heat-resistant core vertically attached to the optical fiber core.
  • An optical element portion in which an interposed body made of a flexible plastic yarn or an organic fiber or an inorganic fiber, and a tensile element for an optical element arranged in parallel in the vicinity thereof and on both sides thereof are covered with a cable sheath.
  • An optical fiber cable is provided in which notches are formed on the surfaces of the cable sheaths on both sides of the intervening body in a direction orthogonal to the direction in which the tensile elements for optical elements are connected. .
  • the cable sheath is blocked by a heat-resistant plastic yarn or an intervening body made of organic or inorganic fibers when the cable sheath is torn from the notch and the optical fiber core is drawn out.
  • the tapping is easy because it does not penetrate into the optical fiber core.
  • the loss characteristics are stabilized because the fiber is manufactured to have a small diameter and the intervening body, for example, the fiber serves as a cushion for the optical fiber core.
  • the optical fiber is simpler, there is no assembling process, and the processing cost is reduced.
  • an optical fiber comprising a plurality of strands or a plurality of tape cores.
  • Strength members disposed on both sides of the optical fiber core along the extending direction of the optical fiber core;
  • An optical fiber cable having an optical element portion in which the interposition body is movable with respect to the optical fiber core wire and the cable sheath is provided.
  • an optical fiber core comprising a plurality of unwrapped units in which a plurality of wires having different colors are wound with plastic strings arranged in different colors for each of the plurality of wires, A heat-resistant plastic yarn or an intermediary body made of organic or inorganic fibers attached vertically around the optical fiber core wire, and a tensile element for an optical element arranged near and parallel to both sides on this side. And an optical element portion covered with a cable sheath, and a notch portion is formed on the surface of the cable sheath on both sides of the intervening body in a direction orthogonal to the direction in which the tensile elements for optical elements are connected.
  • An optical fiber cable is provided.
  • an optical fiber core wire including a plurality of unwrapped units in which a plurality of wires having different colors are wound with plastic strings arranged in different colors for each of the plurality of wires,
  • a tensile strength member disposed on both sides of the optical fiber core along the extending direction of the optical fiber core;
  • a cable sheath that covers the optical fiber core, the intervening body, and the strength member, and connects the strength member in a plane perpendicular to the extending direction and is orthogonal to the X direction.
  • optical fiber cable in which the optical fiber core has an air gap with respect to the intervening body and the cable sheath.
  • the optical fiber cable has a cable support wire portion in which the support wire is covered with a sheath, and which is arranged parallel to the optical element portion and integrated therewith.
  • this optical fiber cable can be used as an optical fiber cable having the same effect.
  • an optical fiber core comprising a plurality of strands or a plurality of tapes, and a heat-resistant plastic yarn or organic fiber which is longitudinally attached to surround the optical fiber.
  • an intermediate body made of an inorganic fiber and a tensile element for an optical element arranged in parallel and on both sides in the vicinity thereof are respectively run and supplied to an extrusion head, and a thermoplastic resin is applied to the extrusion head.
  • An optical element portion in which a cable sheath covers an intervening body and a tensile element for an optical element arranged on both sides in parallel in the vicinity thereof, and each of the optical elements A method of manufacturing an optical fiber cable, comprising manufacturing an optical fiber cable in which notches are formed on the surface of a cable sheath on both sides of the intervening member in a direction orthogonal to the direction in which the tensile strength members are connected. Provided.
  • an optical fiber core comprising a plurality of strands or a plurality of tapes, and a heat-resistant plastic yarn or an organic fiber which is vertically wrapped around the optical fiber.
  • an intermediate body made of an inorganic fiber, a tensile element for an optical element arranged in parallel on both sides in the vicinity of the intermediate body, and a support wire are respectively supplied to the extrusion head by running the support wire and the extrusion head.
  • the thermoplastic resin is extruded to form an optical fiber core consisting of a plurality of strands or a plurality of tape cores, and a heat-resistant plastic yarn or organic fiber or an organic fiber which is vertically wrapped around the optical fiber core.
  • a notch portion is formed on the surface of the cable sheath on both sides of the interposer in a direction perpendicular to the direction in which the element tensile strength members are connected, and the optical element portion includes a cable support line portion having a support wire covered with a sheath.
  • an optical fiber core comprising a plurality of strands or a plurality of tapes, an intermediate member which is vertically attached so as to surround the optical fiber, and the optical fiber.
  • a tensile strength member disposed on both sides of the optical fiber core along the extending direction of the core,
  • thermoplastic resin J3 is solidified before contacting the intervening body.
  • an optical fin L including a plurality of strands or a plurality of tapes, a wire, an intermediate member which is vertically attached so as to surround the optical fiber, and A tensile strength member disposed on both sides of the optical fiber core along the extending direction of the optical fiber core, a step of running the support wire in parallel with each other, and supplying the support to the extrusion head; Extruding a thermoplastic resin into
  • An optical element portion in which the optical fiber core, the intervening body, and the strength member are covered with a cable sheath, and a cable support wire portion in which the support wire is covered with a sheath are arranged in parallel and integrally. Forming a notch on the surface of the cable sheath on both sides of the optical fiber core in the y direction orthogonal to the X direction, which connects the tensile strength members in a plane perpendicular to the stretching direction.
  • thermoplastic resin is solidified before contacting the intervening body.
  • an optical fiber core comprising a plurality of unwrapped units in which a plurality of wires having different colors are wound with plastic strings arranged in different colors for each of the plurality of wires,
  • the thermoplastic resin is extruded into the extrusion head, and a plurality of strands having different colors are arranged in a different color for each of the plurality of wires.
  • An optical fiber core consisting of a plurality of elementary units wound with a fiber, and a heat-resistant plastic or organic fiber or inorganic fiber attached vertically around the optical fiber core
  • An optical element portion in which an intermediary body made of fibers and a tensile element for optical elements arranged in parallel on both sides in the vicinity of the optical element portion are covered with a cable sheath, and the direction in which the tensile elements for each optical element are connected to each other.
  • a method of manufacturing an optical fiber cable by forming a notch on the surface of the cable sheath on both sides of the intervening body in a direction orthogonal to the direction of the optical fiber cable.
  • the cable sheath is torn out from the notch to open the optical fiber, the cable sheath is blocked by a heat-resistant plastic yarn or an intervening body made of organic or inorganic fibers.
  • the mouth is easily cut out because it does not penetrate into the core.
  • the loss characteristics are stabilized because the fiber is manufactured to have a small diameter and, for example, the fiber of the interposition becomes a cushion of the optical fiber core.
  • Aiva cables are simpler, there is no assembly process, and processing costs are lower.
  • the colors are identified by the core wire color and the color of the elementary cord, even when the number of hearts is large, the multicore can be easily identified by the combination of the core color and the color of the elementary cord.
  • an optical fiber core comprising a plurality of unwrapped units in which a plurality of wires having different colors are wound with plastic strings arranged in different colors for each of the plurality of wires,
  • the support wires are respectively run to supply the extruded heads, and the thermoplastic resin is extruded into the extruded heads, and a plurality of strands having different colors are arranged in different colors for each of the plurality of wires.
  • An optical fiber core composed of a plurality of elementary units wound with a cord, and a heat-resistant plastic yarn or an organic fiber or a fiber wrapped vertically around the optical fiber core.
  • a notch portion is formed on the surface of the cable sheath on both sides of the intervening body in a direction perpendicular to the cable body, and a cable support wire portion having a support wire covered with a sheath is integrated with the optical element portion in parallel with each other.
  • a method of manufacturing an optical fiber cable for manufacturing an optical fiber cable is provided. Accordingly, since the optical element portion is integrated with the cable supporting wire portions in which the supporting wires are covered with the sheath in parallel with each other, the optical element portion is used as an optical fiber drop cable and has the same effect.
  • the extrusion of extruding the thermoplastic resin into the extrusion head is performed by solid extrusion.
  • FIG. 1 is a sectional view of an optical fiber cable according to a first embodiment of the present invention.
  • Figure 2 is a cross-sectional view of the extrusion head for manufacturing the optical fiber cable of Figure 1. It is.
  • FIG. 3 is a perspective view of the nipple portion of FIG.
  • FIG. 4 is a perspective view of the die part.
  • FIG. 5 is a sectional view of an optical fiber cable according to the second embodiment of the present invention.
  • FIG. 6 is a sectional view of an optical fiber cable according to the third embodiment of the present invention.
  • FIG. 7 is a cross-sectional view of an extruded head for manufacturing the optical fiber cable of FIG.
  • FIG. 8 is a perspective view of the nipple portion of FIG.
  • FIG. 9 is a sectional view of an optical fiber cable according to a fourth embodiment of the present invention.
  • FIG. 10 is a sectional view of an optical fiber cable according to a fifth embodiment of the present invention.
  • FIG. 11 is a sectional view of an optical fiber cable according to a sixth embodiment of the present invention.
  • FIG. 12 is a sectional view of an optical fiber cable according to a seventh embodiment of the present invention.
  • FIG. 13 is a sectional view of an optical fiber cable according to the eighth embodiment of the present invention.
  • FIG. 14 is a cross-sectional view of a conventional optical fiber cable.
  • FIG. 15 is a cross-sectional view of another conventional optical fiber cable.
  • FIG. 16 is a cross-sectional view of another conventional optical fiber cable. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 shows an optical fiber cable 1 according to a first embodiment of the present invention.
  • the optical fiber cable 1 has an optical fiber core 3 composed of a plurality of strands, and an intervening body 5 surrounding the optical fiber core is vertically attached around the optical fiber core 3.
  • the intervening body 5 is made of, for example, an organic fiber or an inorganic fiber.
  • a tensile element 7 for an optical element is arranged parallel to the optical fiber 3 in a direction perpendicular to the plane of the paper.
  • the optical fiber core 3, the intervening body 5, and the tensile strength member 7 are covered with a cable case 9 made of a thermoplastic resin, and extend in the direction perpendicular to the plane of the drawing.
  • Notches 13 are formed on the upper and lower surfaces 9a, 9b of the cable sheath 9. More specifically, in the cross section of the cable (in a plane perpendicular to the longitudinal direction of the cable), a direction perpendicular to the direction (X direction) connecting the strength members 7 (vertical direction in FIG. 1: y direction) Notches 13a, 13b are formed on the surfaces 9a, 9b of the cable sheath 9 on both sides (upper and lower) of the intervening body 5.
  • the cable sheath 9 does not bite into the optical fiber core 3 because of the interposition body 5. Therefore, when the cable sheath 9 is torn from the notch portion 13 to extract the optical fiber core 3, the optical fiber core 3 can be easily extracted.
  • the cable 1 can be manufactured with a small diameter, and the loss characteristics can be stabilized because the intervening member 5 serves as a cushion for the optical fiber core 3. As a result, the optical fiber cable 1 is simplified, the assembly process is eliminated, and the processing cost can be reduced.
  • the optical fiber core 3 may be composed of a plurality of tapes in addition to a plurality of strands.
  • a 0.25 mm strand is most preferably used as the optical fiber core 3, but a two-core tape core or a single core of about 0.4 to 0.9 mm is used. Is also used.
  • These strands or tape cores may be colored in different colors, for example by nylon coating. This facilitates the identification of individual strands or tape cores.
  • the organic fiber or the inorganic fiber as the intervening body 5 for example, a yarn-Kevlar single fiber of heat-resistant plastic such as nylon or PP (or polypropylene), glass wool, or cotton yarn is preferably used.
  • the amount of the intervening body 5 is desirably such that it completely surrounds the optical fiber core 3.
  • the interposer 5 covers 80% or more of the outer circumference of the optical fiber core 3, the optical fiber core 3 hardly sticks to the sheath when the sheath is torn, and the optical fiber can be easily removed. It is possible to perform tapping of the core wire 3. This point was confirmed by experiments.
  • the melting temperature of the intermediate body 5 is sufficiently higher than the melting temperature of the cable sheath 9 made of a thermoplastic resin.
  • “sufficiently high” means that the intervening body 5 does not melt when it comes into contact with the melted thermoplastic resin for the sheath.
  • the interposition body 5 may be mixed with a plurality of strands or a plurality of tape cores of the optical fiber core 3, and may be housed in the hole 10 in an integrated manner. This facilitates the manufacture of the optical fiber cable 1.
  • the color of the interposer 5 is different from the plurality of strands or the plurality of tape cores. As a result, even when the optical fiber core 3 and the interposer 5 are completely accommodated in the hole 10, the optical fiber core 3 and the interposer 5 are distinguished, so that the optical fiber core 3 is easily ejected. can do.
  • tensile element 7 for an optical element a steel wire, FRP, or the like is suitably used.
  • thermoplastic resin of the cable sheath 9 polyethylene or flame-retardant polyethylene is preferably used.
  • the dimension of the optical fiber cable 1 in the X direction that is, the dimension of the optical element portion 11 in the X direction is preferably 3.5 mm ⁇ 1.0 mm, and the dimension in the y direction is preferably 2.8 mm ⁇ 0.8 mm. It is. Since the optical fiber cable 1 has such a small diameter, it can be wired even in a limited space, and can be easily drawn into an existing building.
  • the dimension h 2 is determined based on the magnitude of this force and the material of the cable sheath 9.
  • dimension h 2 is approximately 0. 2 mm, preferably 0. 1 mm or more 0. 4 mm or less, more preferably 0. 2 mm or more 0. 3 mm or less It is.
  • the depth h 3 of the notches 13 a and b is the dimension (height) of the cable sheath 9 in the y direction (height) 11 1 and the dimension from each notch 13 &, b to the hole 10 (the cable at the notch 13 a, b is the thickness) dimension of h 2 Metropolitan is relatively determined Me sheath 9.
  • Me sheath 9 For example, if the height 1 ⁇ of the cable sheath 9 is 2.8 mm, Notch 1 3 a, the depth h 3 of b is generally a 0. 4 mm.
  • the cable sheath 9 can be easily torn from the notch portion 13 by hand, and the optical fiber core wire 3 can be easily drawn out.
  • the size of the hole 10 is determined based on the cross-sectional area of the optical fiber core wire 3 and the intervening body 5 to be accommodated.
  • X dimension w 2 holes 1 0 is approximately 1. 5 mm, preferably 1. 2 mm or more 1. 8 mm or less, more preferably 1. 3 mm or more 1. 7 mm Ru der below.
  • FIG. 2 is a sectional view of the extrusion head 23.
  • a nipple portion 25 is provided at the center of the head 23.
  • FIG. 3 is a perspective view of the nipple portion 25.
  • the nipple portion 25 is formed with a nipple hole 33 through which the optical fiber core wire 3 and the intervening body 5 pass (or are drawn out).
  • nipple holes 35 through which the optical element strength members 7 pass are formed on both outer sides of the nipple holes 33.
  • a die portion 29 having a die hole 27 is provided on the outer periphery of the nipple portion 25.
  • FIG. 4 is a perspective view of the dice 29.
  • the die portion 29 is provided with protrusions 30a and 30b for forming a notch portion.
  • a cone-shaped hole 31 is provided between the die portion 29 and the nipple portion 25 and communicates with a die hole 27 and extrudes a thermoplastic resin as a sheath. Have been.
  • the optical fiber package When the optical fiber package is manufactured by the above configuration, the optical fiber core 3 wound around the reel (not shown) provided on the right side in FIGS. And the two tensile elements for optical element 7 and.
  • the optical fiber core wire 3 and the plurality of intervening bodies 5 pass through the nipple holes 3 3 of the nipple portion 25, and the two tensile strength members 7 for optical elements 7 are connected to the nipple holes 3 of the nipple portion 25.
  • the molten thermoplastic resin P is thoroughly extruded from the holes 31 of the die part 29.
  • the method for manufacturing an optical fiber cable has the following features.
  • the extrusion head 23 is used.
  • the first end for passing the optical fiber core wire 3 and the plurality of intervening bodies 5 through the front end surface (or the truncated surface) 25a has a truncated cone (or truncated cone) shape.
  • the sectional area of the first nipple hole 33 is larger than the sectional area of the second nipple hole 35.
  • the second nipple holes 35 are arranged on both sides of the first nipple holes 33 in the X direction on the distal end surface 25a.
  • the protruding portions 30a and 30b are provided in the die tip surface 29b parallel to the nipple tip surface 25a so as to face each other in the y direction orthogonal to the X direction. Further, it is desirable that the tip portions of the protruding portions 30 a and b have substantially the same Cartesian coordinate value as the center of the first nipple hole 33 in the X direction.
  • thermoplastic resin P A step of extruding the thermoplastic resin P together with the optical fiber core wire 3 and the plurality of intervening bodies 5 from the die holes 27.
  • thermoplastic resin P In front of the die hole 27 in the extrusion direction, the thermoplastic resin P is solidified in a state surrounding the aggregate of the optical fiber core wire 3 and the interposer 5 and the tensile strength member 7, and the aggregate and the tensile strength Step of integrating body 7
  • the drawing process of the optical fiber core wire 3 and the interposer 5 from the first nipple hole 33, the drawing process of the tensile strength member 7 from the second nipple hole 35, and the thermoplasticity from the die hole 27 The step of extruding the resin P or the like is performed simultaneously.
  • the position of the notch portion 13 relative to the position of the optical fiber core 3 in the cable sheath 9 in the X direction in a plane orthogonal to the extending direction of the optical fiber core 3 Even if it is displaced, the optical fiber core wire 3 can be easily led out.
  • an optical fiber cable including the optical fiber core wire 3, the intervening member 5, the tensile strength member 7, and the sheath 9 can be rapidly manufactured in a series of continuous steps.
  • FIG. 5 shows an optical fiber cassette 101 according to the second embodiment of the present invention.
  • This optical fiber cable 101 has the same optical element unit 111 as in the first embodiment.
  • the optical fiber cable 101 further includes a cable support wire ⁇ 1511 which covers the support wire 115 with a sheath 117.
  • the support wire 1 15 is made of, for example, a steel wire.
  • the sheath 117 is a thermoplastic resin and is formed integrally with the cable sheath 109. Therefore, the cable support wire portion 119 is integrated with the optical element portion 111 via the neck portion 121.
  • the optical fiber cable 101 can be used as an optical fiber drop cable, and has the same effects as the first embodiment. That is, at the time of manufacturing, the Cape Fresh 109 does not bite into the optical fiber core 103 because of the intervening body 105. Therefore, when the cable sheath 109 is torn from the notch portion 113 to extrude the optical fiber core 103, the optical fiber core 103 can be easily extruded.
  • the cable 101 can be manufactured to have a small diameter, and the intermediate body 105 serves as a cushion for the optical fiber core wire 103, so that the loss characteristics can be stabilized.
  • the optical fiber cable 101 becomes simple, the assembly process is eliminated, and the processing cost can be reduced.
  • X dimension w 3 of the optical fiber cable 1 0 1 preferably 6. 0 mm ⁇ l. 0 mm, and the dimension in the y-direction is preferably 2.8 mm ⁇ 0.8 mm. Since the optical fiber cable 101 has such a small diameter, it can be wired even in a limited space, and can be easily drawn into an existing building.
  • the optical fiber cable 101 of the second embodiment is manufactured by a method generally similar to the method of manufacturing the optical fiber cable of the first embodiment.
  • the difference from the manufacturing method of the first embodiment is that a nipple part having a shape different from that of the nipple part 25 shown in FIG. 7 together with supporting lines 1 15.
  • FIG. 6 shows an optical fiber cable 201 according to a third embodiment of the present invention.
  • This optical fiber cable 201 has an optical fiber core 203 composed of a plurality of strands, like the one shown in FIG.
  • An interposer 205 is vertically attached so as to surround the optical fiber core 203.
  • the intermediate 205 is, for example, an organic fiber or an inorganic fiber.
  • a tensile element for optical element 207 is arranged parallel to the optical fiber core 203 in a direction perpendicular to the plane of the paper. Have been.
  • the optical fiber core 203, the intervening body 205, and the tensile element for optical element 207 are covered with a cable sheath 209 made of a thermoplastic resin, and extend in the direction perpendicular to the plane of the drawing. 1 constitutes 1.
  • the intervening body 2 in the direction (y direction) perpendicular to the arrangement direction (X direction) of the tensile element for optical element 207 Notches 2 13 a and b are formed on the surface of the cable sheath 209 located on both sides (up and down in FIG. 6) of the cable 05.
  • the surface 2 14 connecting the notch portions 2 13 a and b facing each other has the optical fiber core 203 and the interposition.
  • the notch portions 2 13 a and b may be provided so as to intersect the hollow portion of the cable sheath 209 that accommodates the body 205 (? 210). Since the allowable range of the position of the optical fiber core wire 203 is wide, it is not necessary to position the notch portions 2 13 a and b with respect to the position of the optical fiber core 203 exactly as in the conventional case. Bull production can be made easier.
  • the optical fiber cable 201 of FIG. 6 is different from the embodiment of FIG.
  • the hollow body 210 of the cable sheath 209 is located between the intervening bodies 205 or between the intervening bodies 205.
  • a gap (gap) is formed between the sheath and the sheath 209. That is, the optical fiber core wire 203 and the intervening body 205 are filled in the hollow portion 210 at a filling ratio that allows the cable to move somewhat in the lateral direction (X direction, y direction) of the cable.
  • the filling rate is defined by the following equation.
  • Filling rate (%) ⁇ (cross-sectional area of optical fiber x number of optical fibers) + (cross-sectional area of intervening body x number of intervening bodies)) ⁇ X100 hollow area cross-sectional area Or the cross-sectional area of the tape core, and the number of optical fibers is the number of strands or tapes.
  • the optical fiber core 203 is filled in the hollow part 210 to such an extent that it is loosely bound by the intervening body 205.
  • the optical fiber core 203 is securely held by the sheath.
  • the intermediate body 205 and the cable sheath 209 are not fused, the intermediate body 205 is positioned in the z direction (longer direction) with respect to the optical fiber core wire 203 and the cable sheath 209. Direction).
  • the dimension of the optical fiber cable 210 in the X direction that is, the dimension of the optical element portion 211 in the X direction is preferably 3.5 mm ⁇ 1.0 mm, and the dimension in the y direction is preferably 2 mm. .8 mm ⁇ 0.8 mm. Since the optical fiber cable 201 has such a small diameter, it can be wired even in a limited space, and can be easily drawn into an existing building.
  • dimension h 2 is approximately 0. 2 mm, preferably 0. It is 4 mm or less, more preferably 0.2 mm or more and 0.3 mm or less.
  • the depth h 3 of the notches 213 a, b is the dimension (height) 1 ⁇ in the y direction of the cable sheath 209 and the dimension from each notch 213 a, b to the hole 210 (cable at the notches 213 a, b) sheet Ichisu thickness of 209) are relatively determined is the size of h 2 Prefecture, Ru generally 0. 4 mm der. Accordingly, the cable sheath 209 can be easily torn by hand from the notch portion 213, and the optical fiber 203 can be easily exposed.
  • the hollow portion 210 has a circular or elliptical cross section in the cable cross section (in the xy plane).
  • the dimensions of the hollow part 210 are determined based on the cross-sectional areas of the optical fiber core 203 and the interstitial body 205 to be accommodated.
  • X dimension w 2 of the hollow portion 210 is an approximate I 1. 5 mm, preferably 1. 2 mm or more 1. 8 mm or less, more preferably 1. 3 mm or more 1. 7 mm or less.
  • FIG. 7 shows a cross-sectional view of an extruded head 223 for manufacturing the optical fiber cable shown in FIG.
  • the nipple portion 225 includes a pipe portion 228 extending in the extrusion direction A (the left direction in FIG. 7) to the tip of the die hole 227. That is.
  • the pipe portion 228 is provided with an extended nipple hole 233 through which the optical fiber 203 and the intermediary body 205 pass.
  • the molten thermoplastic resin P extruded from the hole 231 between the nipple portion 225 and the die portion 229 passes through the space between the pipe portion 228 and the die hole 227 (that is, is sent out from the nipple hole 233). Solidifies (before it comes into contact with intermediary 205). Therefore, as shown in FIG. 6, in the hollow portion 210 of the cable sheath 209, between the intervening bodies 205 or between the intervening body 205 and the sheath 209. An optical fiber cable 201 having a gap formed therebetween can be obtained.
  • an optical fiber cable including the optical fiber core wire 203, the intervening body 205, the tensile strength member 207 and the sheath 209 is rapidly manufactured in a series of continuous steps. You can do it.
  • FIG. 9 shows an optical fiber cable 301 according to a fourth embodiment of the present invention.
  • This optical fiber cable 301 has an optical element part 311 similar to that of the third embodiment (FIG. 6).
  • the optical fiber cable 301 further includes a cable support wire section 319 similar to that of the second embodiment (FIG. 5).
  • the optical fiber cable 301 can be used as an optical fiber drop cable and has the same effect as the embodiment of FIG.
  • the optical fiber cable 301 of the fourth embodiment is manufactured by a method generally similar to the method of manufacturing the optical fiber cable of the third embodiment.
  • the difference from the manufacturing method of the third embodiment is that the nipple portion having a shape different from that of the nipple portion 222 shown in FIG. Along with 07, is to provide support lines 3 15.
  • FIG. 10 shows an optical fiber cable 401 according to a fifth embodiment of the present invention.
  • This optical fiber cable 401 has an optical fiber core wire 408.
  • the optical fiber core wire 408 is composed of a plurality of unwound units 406 a, b, c.
  • Each elementary unit 406a, b, c is composed of a plurality of colored elements 402, a, b, c, and a plastic string 40, which is elementary winding element 402, a, b, c. 4 a, b, c and
  • the wires 402 a, b, and c in each of the wire winding units 400 a, b, and c are colored with different colors.
  • the wire 402a is colored blue, the wire 402b is yellow, and the wire 402c is green.
  • the colors of the plastic strings 404 a, b, and c are different for each of the unwrapped units 406 a, b, and c.
  • the unwound unit 406a has a black plastic string 404a
  • the unwound unit 400b has a red plastic string 404b
  • the unwound unit 406c has It has a white plastic string 400c.
  • an intermediate body 405 surrounding the optical fiber core wire 408 is vertically attached around the optical fiber core wire 408.
  • Intermediate 4 0 5 is, for example, For example, it is composed of organic fibers or inorganic fibers.
  • tensile elements for optical elements 407 are arranged in parallel to the optical fiber ribbon 408 in a direction perpendicular to the paper surface.
  • the optical fiber core wire 408, the intervening body 405, and the strength member 407 are covered with a cable sheath 409 made of a thermoplastic resin, and the optical element portion 4 extends in a direction perpendicular to the paper surface.
  • the cable sheath 409 is blocked by the intervening body 405 and does not bite into the optical fiber core 408. Accordingly, when the cable sheath 409 is torn from the notch portions 413a and b to extract the optical fiber core wire 408, the tapping can be easily performed. In addition, since it can be manufactured with a small diameter and the intervening body 405 serves as a cushion for the optical fiber core wire 408, the loss characteristics can be stabilized. As a result, the optical fiber cable 408 becomes simple, the assembly process is eliminated, and the processing cost can be reduced.
  • the optical fiber core wire 408 is composed of a plurality of units 406 a, b, c, each of which is formed by winding a plurality of strands with plastic strings 400 a, b, c of different colors. Since each strand in the winding unit 400 a, b, and c is colored with a different color, a plurality of strands in the cable can be easily identified.
  • FIG. 11 shows an optical fiber cable 501 according to a sixth embodiment of the present invention.
  • This optical fiber cable 501 has the same optical element unit 5111 as the fifth embodiment (FIG. 10).
  • the optical fiber cable 501 further includes a cable support wire section 519 similar to that of the second embodiment (FIG. 5).
  • this optical fiber cable 501 can be used as an optical fiber drop cable, and has the same effects as the embodiment of FIG.
  • the method of manufacturing the optical fiber cables 401 and 501 shown in FIGS. 10 and 11 is the same as the method of manufacturing the optical fiber cables of the first and second embodiments.
  • the difference is that the optical fiber core 408 is used instead of the optical fiber core 3 in FIGS.
  • the optical fiber cable 401 shown in FIG. 10 is manufactured.
  • the supporting wire 515 is supplied together with the optical fiber core wire 508, the intervening body 505, and the strength member 507.
  • An optical fiber cable 501 as shown in FIG. 11 can be manufactured.
  • FIG. 12 shows an optical fiber cable 600 according to a seventh embodiment of the present invention.
  • This optical fiber cable 600 is almost the same as the fifth embodiment (FIG. 10). That is, as in the fifth embodiment, the cable sheath 609 is blocked by the intervening body 605 and does not bite into the optical fiber core 608. Therefore, when the cable / sheath 609 is torn from the notch portions 613a and 6b and the optical fiber core wire 608 is output, the output can be easily performed.
  • the intermediate body 605 serves as a cushion for the optical fiber core wire 608, the loss characteristics can be stabilized: ⁇ .
  • the optical fiber cable 608 becomes simple, the assembly process is eliminated, and the processing cost can be reduced.
  • the optical fiber core 608 is composed of a plurality of units 606 a, b, c in which a plurality of strands are individually wound with plastic strings 604 a, b, c of different colors. Since the individual wires in the winding unit 600 a, b, and c are colored with different colors, a plurality of wires in the cable can be easily identified.
  • FIG. 13 shows an optical fiber cable 71 according to the eighth embodiment of the present invention.
  • This optical fiber cable 701 has the same optical element section 71 1 as in the seventh embodiment (FIG. 12).
  • the optical fiber cable 701 further includes a cable support wire section 719 similar to the second embodiment (FIG. 5).
  • the optical fiber cable 701 can be used as an optical fiber drop cable, and has the same effect as the embodiment of FIG.
  • the method of manufacturing the optical fiber cables 601 and 701 shown in FIGS. 12 and 13 is the same as the method of manufacturing the optical fiber cables of the third and fourth embodiments.
  • the difference is that the optical fiber core 608 is used instead of the optical fiber core 203 in FIGS.
  • the optical fiber cable 600 shown in FIG. 12 can be manufactured.
  • the support wire 715 is supplied together with the optical fiber core wire 708, the intervening body 705, and the strength member 707.
  • an optical fiber cable 701 as shown in FIG. 13 can be manufactured.
  • the embodiment of the optical fiber cable according to the present invention has the following features.
  • a cable sheath 9 of an optical fiber cable in a xy plane perpendicular to the z direction in which the cable sheath 9 extends, a hole extending in the z direction substantially at the center of the cable sheath 9.
  • an interposer 5 longitudinally attached to the element wire or the tape core wire 3,
  • an interposer 205 which is vertically attached to the element wire or the tape core wire 203,
  • the filling rate of the strands or tape cores 203 and the intervening bodies 205 in the holes 210 is defined as: between the plurality of strands or the plurality of tape cores, and Alternatively, a gap is provided between the tape core 203 and the intervening body 205.
  • the filling rate of the element wire or tape core wire 203 and the interposed body 205 in the hole 210 is determined by the following formula: between the interposed body 205 and the inner surface of the hole 210. To the extent that voids are formed.
  • the filling rate of the element wire or tape core wire 203 and the interposed body 205 in the hole 210 is such that the interposed body 205 has a z It can move in any direction.
  • the filling rate of the wire or tape core wire 203 and the interposer 205 in the hole 210 is determined by the fact that the contraction stress of the cable sheath 209 is reduced by the wire or tape core. It is set so that it is not easily transmitted to line 203.
  • the interposer 205 and the cable sheath 209 can be separated from each other.
  • a hole 410 extending in the z-direction is formed at a substantially central portion of the cable sheath 109, and at least one notch portion 413 on each of the surfaces of the cable sheath 409 on both sides of the hole 410 in the y-direction.
  • a a cable sheath 409 formed with b,
  • each elementary winding unit 406 a, b, c is a plurality of elementary wires 40 of different colors. 2 a, b, c and a plurality of plastic wires 4 0 2 a, b, c comprising a plastic string 4 0 4 a, b, c, wherein the plastic string 4 0 4 a, b, c Is a unitary winding unit 4 06 a, b, a plurality of unitary winding units 4 08 having different colors for c,
  • Strength members 407 disposed along the z direction in the cable sheath 409 on both sides of the hole 410 in the X direction;
  • the optical element unit 411 includes
  • the cable sheath 609 of the optical fiber cable wherein the cable sheath 609 extends in the z-direction at a substantially central portion of the cable sheath 609 in an xy plane perpendicular to the z-direction in which the cable sheath 609 extends.
  • each unwound unit 606a, b, c includes a plurality of wires 602a, b, c having different colors. It has a plastic string 604a, b, c for winding a plurality of strands 602a, b, c, and the plastic string 604a, b, c has a color for each strand unit 606a, b, c. And a plurality of unwrapped unit 608,
  • Strength members 607 disposed along the z direction in the cable sheath 609 on both sides in the X direction of the holes 610;
  • the filling rate of the unwound unit 608 and the intervening body 605 in the hole 610 is determined between the plurality of unwound units 606a, b, and c, and between the unwound unit 608 and the intervening body 605.
  • Fiber optic cable that has only a gap in it.
  • the cable support lines 119, 319, 519, and 719 are disposed parallel to and integrated with 311, 511, and 711.
  • the intervening body includes a heat-resistant plastic yarn, an organic fiber, or an inorganic fiber.
  • the melting temperature of the intermediate is sufficiently higher than the melting temperature of the cable sheath.
  • the intervening body is present between the strand or the tape core and the inner surface of the hole and between the plurality of strands or the tape cores.
  • the straight line is parallel to the y direction in the plane.
  • the cable sheath is made of a thermoplastic resin.
  • the strand or the tape core and the interposition body are arranged in the hole after the cable sheath is solidified.
  • the dimension of the optical element in the X direction is 3.5 mm ⁇ 1.0 mm, and the dimension in the y direction is 2.8 mm ⁇ 0.8 mm.
  • the dimension h 2 from the notch portion to the hole is set 0. 5 kg or 1. O kg less force to break when added to the X direction.
  • the dimension h 2 from the notch portion to the hole is less 0. 1 mm or more 0. 4m m.
  • the dimension h 2 from the notch portion to the hole is less 0. 2 mm or more 0. 3m m.
  • the depth h 3 of the notches, y dimension of the optical element unit! ! E to be relatively determined is the size of the dimension h 2 Metropolitan from the notch portion to the hole.
  • the dimension w 2 in the X direction of the hole is 1. 2 mm or more 1. 8 mm or less.
  • the dimension w 2 in the X direction of the hole is 1. 3 mm or more 1. 7 mm or less.
  • the plurality of strands or the plurality of tape cores are colored with different colors.
  • the interposer is arranged in the hole in a mixture with the plurality of strands or the plurality of tape cores.
  • the interposer is different in color from the plurality of strands or the plurality of tape cores.
  • the mask has a circular, elliptical or rectangular cross section in the xy plane.
  • the embodiment of the method for manufacturing an optical fiber cable according to the present invention has the following features.
  • (29) a step of running the element wire or the tape core, the intervening body, and the tensile strength member, respectively, and supplying them to the extrusion head;
  • Forming the optical element portion forming a hole in the cable sheath, arranging the element wire or tape core wire and the interposition body in the hole, and forming a hole on the surface of the cable sheath. Forming a notch portion;
  • Forming the optical element portion forming a hole in the cable sheath, disposing the element wire or tape core wire and the interposition body in the hole, and notching the surface of the cable sheath. Forming a part,
  • thermoplastic resin is solidified before contacting the intervening body.
  • the element wire or the tape core, the intervening body, and the tensile member are arranged in the hole.
  • (32) a step of feeding the extruded head by running the element wire or tape core wire, the intervening body, the tensile strength member, and the support wire, respectively,
  • thermoplastic resin is solidified before coming into contact with the intervening body.
  • a first nipple hole through which a plurality of strands or a plurality of tape core wires and a plurality of intervening bodies pass, and a pair of strength members, the tip portion of which has a truncated cone shape, and a tip surface thereof.
  • a nipple portion provided with a pair of second nipple holes for allowing the nipple to pass therethrough, and a dice portion having a conical inner peripheral surface disposed parallel to the conical surface of the nipple portion at a predetermined interval.
  • a die hole for extruding the thermoplastic resin for the sheath together with the element wire or the tape core wire and the intervening body; and a projection protruding into the die hole to form a notch portion.
  • Extrusion of extruding a thermoplastic resin into the extrusion head is performed by solid extrusion.
  • the strand or tape core and the intervening body are supplied to the extrusion head in a state where they are separate from each other or in a state where they can be moved in the X and y directions.
  • a cable sheath 209 having a substantially rectangular cross section and extending in the z-direction, wherein a hole 210 is formed substantially at the center of the cross section, and a short side of the cross section.
  • a cable sheath 209 having at least one notch 2 13 a, b formed on each of the long sides of the cross section on both sides of the hole 210 in the y direction, A plurality of strands or a plurality of tape cores 2 0 3 arranged along the z direction within 10;
  • an interposer 205 which is vertically attached to the element wire or the tape core wire 203,
  • Strength members 207 arranged along the z direction in the cable sheath 209 on both sides of the hole 210 in the X direction parallel to the long side of the cross section;
  • An optical fiber cable comprising: The dimension of the long side of the cross section is 3.5 mm ⁇ 1.0 mm, and the dimension of the short side is 2.8 mm ⁇ 0.8 mm,
  • X dimension w 2 of the bore 210 is a 1. 5 ⁇ 0. 3 mm
  • Shortest dimension h 2 of the notch portion 213 a, a b to the hole is at 0. 1 mm or more 0. 4 mm or less
  • the cable sheath 209 is made of a thermoplastic resin, and the intervening body 205 is made of a heat-resistant plastic chain or an organic fiber or an inorganic fiber, whose melting temperature is sufficiently higher than that of the cable sheath 209,
  • Each strand or tape core is colored differently from each other
  • the interposer 205 has a color different from that of the strand or tape core, and is arranged in the hole 210 in a mixture with the plurality of strands or tape cores, and the hole 210
  • the filling rate of the wire or tape core 203 and the interposition body 205 in the inside is such that the interposition body 205 can move in the z direction with respect to the wire or tape core 203 and the cable sheath 209. It is.
  • (39) In general, it has a horizontally long rectangular cross-sectional shape, and has cutouts 213a and 213b extending vertically in almost the center of the upper and lower long sides of the rectangular shape, and the upper and lower cutouts 213a a sheath 209 having an accommodation hole 210 between the housing holes 210 and b, and having a pair of tensile strength hole on both sides in the left-right direction of the accommodation hole 210;
  • a tensile strength wire 207 fixedly disposed on the sheath 209
  • the receiving hole 210 has a width in the vertical direction and the horizontal direction of 20% to 70% of the long side or the short side of the rectangular shape,
  • the shortest distance h 2 between the upper and lower notches 213 a, b and the accommodation hole 210 is set according to the material of the sheath 209 to allow tearing at operator's hand, said wire or tape heart
  • the wire 203 and the intermediary body 205 have different colors from each other, and are mixed and arranged inside the accommodation hole 210 in the cable cross-sectional direction.
  • the filling rate of the strand or the tape core 203 and the interposed body 205 in the accommodation hole 210 is determined by the filling rate of the strand or the tape core 203 and the interposed body 2.
  • 05 is the filling factor that can be moved in the cable section direction.
  • the cable from the notch portion The cable sheath is easily interrupted by the heat-resistant plastic yarn or the body made of organic or inorganic fibers, so that it does not bite into the optical fiber core when the sheath is split and the optical fiber core is exposed. You can kiss out.
  • the fiber can be manufactured to have a small diameter, and the loss characteristics can be stabilized because, for example, the fiber of the intervening body becomes a cushion of the optical fiber core.
  • the optical fiber cable becomes simple, there is no assembling process, and the processing cost can be reduced.
  • an optical fiber is obtained by integrating a cable supporting wire portion in which a supporting wire is covered with a sheath into the optical element portion in parallel with each other. Can be used as a drop cable.
  • a plurality of optical fiber core wires are wound by a plastic string, each of which is arranged in a different color. It consists of unwrapped units, and the wires in those unwrapped units are composed of wires of different colors, so that good discrimination can be obtained.
  • the extruding of the thermoplastic resin into the extruded head is performed by solid extrusion, so that the sheath comes into tight contact with the extruded head.
  • the movement of the optical fiber core wire can be suppressed.
  • the optical fiber core wire is appropriately restrained by the intervening body, and even if a temperature change occurs, the contraction stress of the cable sheath is hardly transmitted to the fiber. Loss stability Performance can be improved.
  • an optical fiber cable having a small diameter and excellent in loss characteristics and workability, and a method for manufacturing the same.
  • optical fiber core wires we used 0.25 mm SM strands, and three types of strand units in which blue, yellow, and green strands were wound with black, red, and white cotton threads, respectively.
  • two yarns of the same color were cross-bound at a pitch of 20 Omm.
  • Three aramide fibers (Kepler) 1140 denier were used as an intermediary to be vertically attached to the unwrapped unit, and these were vertically attached along the three unwound units.
  • a 0.4 mm steel wire as a tensile member and flame-retardant polyethylene as a sheath, the extrusion head shown in FIG.
  • Loss characteristics good at 0.2 dB / km (1.55 ⁇ m).
  • Optical fiber core wire splicing connectivity When the sheath was torn from the notch, the strand could easily be spliced into pieces. This wire could easily be connected to other branch cables. In particular, in Example 2, it was easy to distinguish the strands by using plastic strings and dyed wires of different colors. Movement of the optical fiber core within the cable: 20 m of cable (open at both ends) was laid vertically on the tray, and the fiber optic cable was continuously vibrated for 1 week at a frequency of 1 Hz and an amplitude of 10 mm. It was below the detection limit (0.1 mm or less).
  • the optical fiber core wire of the first embodiment in which four wires are inserted the two core tapes in which four wires are inserted, and the nylon yarn, polypropylene yarn, and glass yarn in which the intervening body is inserted
  • prototypes of four wires of different colors in the wire-wound unit of Example 2 optical fiber cables with the structures shown in Figs. Evaluations were made and all were good.
  • the present invention is not limited to the above-described embodiment, but can be embodied in other forms by making appropriate changes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

L'invention concerne un câble à fibres optiques comprenant une partie élément optique (11) ayant une âme (3) de fibres optiques formée de plusieurs fils ou de plusieurs âmes rubanées, un corps d'inclusion (5) formé d'un fil en plastique thermorésistant, de fibres organiques ou de fibres inorganiques fixées verticalement à l'âme (3) de façon à l'entourer, et de corps (7) résistants à la tension pour élément optique qui sont placés des deux côtés du corps d'inclusion parallèles les uns aux autres et qui sont revêtus d'une gaine (9) de câble, dans laquelle sont formées des parties encoches (13) sur les deux côtés du corps d'inclusion (5), perpendiculairement à une direction dans laquelle les corps résistants à la tension (7) pour élément optique sont placés parallèles les aux autres.
PCT/JP2003/004390 2002-04-08 2003-04-07 Cable a fibres optiques et son procede de fabrication WO2003085436A1 (fr)

Priority Applications (2)

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JP2003582567A JPWO2003085436A1 (ja) 2002-04-08 2003-04-07 光ファイバケーブルおよびその製造方法
AU2003236289A AU2003236289A1 (en) 2002-04-08 2003-04-07 Optical fiber cable and method of manufacturing the optical fiber cable

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JP2002105537 2002-04-08
JP2002/105537 2002-04-08
JP2002/132988 2002-05-08
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005128270A (ja) * 2003-10-24 2005-05-19 Nishi Nippon Electric Wire & Cable Co Ltd 構内用光ファイバケ−ブル
WO2005096053A1 (fr) * 2004-03-31 2005-10-13 Ccs Technology, Inc. Cable pouvant se separer de maniere mecanique
WO2007085473A1 (fr) * 2006-01-27 2007-08-02 Ccs Technology, Inc. Câble optique et procédé de fabrication d'un câble optique
EP2396688A2 (fr) * 2009-02-16 2011-12-21 Corning Cable Systems LLC Câbles duplex et câbles zipcord, et câbles de dérivation incorporant des câbles duplex
JP2018205689A (ja) * 2017-06-02 2018-12-27 株式会社フジクラ 光ファイバケーブル
US11048054B2 (en) 2017-06-02 2021-06-29 Fujikura Ltd. Optical fiber cable and method of manufacturing optical fiber cable
WO2022244584A1 (fr) * 2021-05-18 2022-11-24 株式会社フジクラ Câble à fibres optiques

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4729628A (en) * 1986-11-14 1988-03-08 Siecor Corporation Fiber optic dropwire
JPH10301002A (ja) * 1997-04-30 1998-11-13 Sumitomo Electric Ind Ltd 光ファイバ平型ケーブル
JP2000206380A (ja) * 1999-01-08 2000-07-28 Fujikura Ltd Ｓｔ型光ファイバケ―ブル及びその製造方法
EP1081519A1 (fr) * 1999-08-30 2001-03-07 Alcatel Fibre optique ayant un materiau gonflable à l'eau pour l'indentification des groupes optiques
JP2001194567A (ja) * 2000-01-11 2001-07-19 Sumitomo Electric Ind Ltd 光ファイバケーブル
JP2002072032A (ja) * 2000-08-28 2002-03-12 Sumitomo Electric Ind Ltd 光ケーブル

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4729628A (en) * 1986-11-14 1988-03-08 Siecor Corporation Fiber optic dropwire
JPH10301002A (ja) * 1997-04-30 1998-11-13 Sumitomo Electric Ind Ltd 光ファイバ平型ケーブル
JP2000206380A (ja) * 1999-01-08 2000-07-28 Fujikura Ltd Ｓｔ型光ファイバケ―ブル及びその製造方法
EP1081519A1 (fr) * 1999-08-30 2001-03-07 Alcatel Fibre optique ayant un materiau gonflable à l'eau pour l'indentification des groupes optiques
JP2001194567A (ja) * 2000-01-11 2001-07-19 Sumitomo Electric Ind Ltd 光ファイバケーブル
JP2002072032A (ja) * 2000-08-28 2002-03-12 Sumitomo Electric Ind Ltd 光ケーブル

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005128270A (ja) * 2003-10-24 2005-05-19 Nishi Nippon Electric Wire & Cable Co Ltd 構内用光ファイバケ−ブル
WO2005096053A1 (fr) * 2004-03-31 2005-10-13 Ccs Technology, Inc. Cable pouvant se separer de maniere mecanique
WO2007085473A1 (fr) * 2006-01-27 2007-08-02 Ccs Technology, Inc. Câble optique et procédé de fabrication d'un câble optique
EP2396688A2 (fr) * 2009-02-16 2011-12-21 Corning Cable Systems LLC Câbles duplex et câbles zipcord, et câbles de dérivation incorporant des câbles duplex
JP2018205689A (ja) * 2017-06-02 2018-12-27 株式会社フジクラ 光ファイバケーブル
US11048054B2 (en) 2017-06-02 2021-06-29 Fujikura Ltd. Optical fiber cable and method of manufacturing optical fiber cable
WO2022244584A1 (fr) * 2021-05-18 2022-11-24 株式会社フジクラ Câble à fibres optiques

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