WO2006006131A1 - Procede et dispositif pour separer et effectuer des finitions sur des fibres optiques - Google Patents

Procede et dispositif pour separer et effectuer des finitions sur des fibres optiques Download PDF

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Publication number
WO2006006131A1
WO2006006131A1 PCT/IB2005/052244 IB2005052244W WO2006006131A1 WO 2006006131 A1 WO2006006131 A1 WO 2006006131A1 IB 2005052244 W IB2005052244 W IB 2005052244W WO 2006006131 A1 WO2006006131 A1 WO 2006006131A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulation
optical waveguide
grinding
fiber
saw
Prior art date
Application number
PCT/IB2005/052244
Other languages
German (de)
English (en)
Inventor
Leo Bühler
Original Assignee
Schleuniger Holding Ag
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 Schleuniger Holding Ag filed Critical Schleuniger Holding Ag
Priority to DE112005001098T priority Critical patent/DE112005001098A5/de
Publication of WO2006006131A1 publication Critical patent/WO2006006131A1/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
    • G02B6/24—Coupling light guides
    • G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/245—Removing protective coverings of light guides before coupling

Definitions

  • the invention relates to a novel method for severing and finishing optical waveguides and a device for this purpose.
  • Typical tools for cutting optical fibers are:
  • Fiber optic separating devices for rectangular and also oblique fiber breaks (4-12 °), "Cleaver”. These are also suitable for separating polarization-maintaining fibers.
  • Fiber optic cables are also cut through by using a circular saw to cut across the cable axis.
  • the circular saw can be constructed differently, e.g. as a saw blade with diamond coating.
  • a disadvantage of the saw blade it can lead to smearing of the saw blade or smearing of the different materials on the fiber because the different materials, such as insulation used in a fiber optic, can not be cut very well together, or by the separation process too strong heat.
  • ferrule For the production of a fiber optic connection, there are the following in the prior art, such as WO-A-0171399 described: The exposed end of the optical fiber is inserted into a ferrule - in particular glued - so that the inaccurate end of the ferrule protrudes and then finished there - ground and polished (the latter sometimes with the end face of the ferrule at the same time).
  • a ferrule is a continuous support to understand in which a fiber, for example, preferably attached centered with adhesive.
  • ferrule is thus a ferrule in the traditional sense, but also to be understood as a connector housing or the like.
  • a disadvantage of this known process is that so that no ferrule connector can be created in which the fiber optic have an inscription, ie where the fiber optic ends the ferrule does not protrude.
  • the fiber optic cables can not be edited later, so they have to be finished beforehand to size and with high precision. This is particularly important for the lowest possible attenuation of light transmission.
  • a method and an apparatus for producing an optical fiber end are known. It describes and claims a method in which the cutting of the optical fiber and the machining of the end face is carried out as a self-contained working step, which at the same time includes the cutting of the optical fiber and the finishing of the end face, wherein the removal of the outer shell in the region of the end portion only after that takes place.
  • a diamond-tipped disk is used as the saw blade.
  • the device comprises a clamping device, separating tools and means for removing the outer sheath in the region of the end portion of the optical fiber.
  • the cut surface is severed by the saw blade, all parts of the optical fiber, in particular its outer sheath, at the same time cuts through the smearing materials, and thus smear itself or even the face or melt on.
  • Cutting with a laser or the like may also cause a poor result because the materials may burn and make dirty edges.
  • a device with lateral holding jaws which has a central cut with a cleaver (cleaver blade) but without puncture before and works with a continuous process.
  • the clamping device is described there as conventional, while according to the invention is a reciprocable clamping and holding device, which is preferably divided into two parts on both sides. As a result of the separation by the cleaver blade edgy fault lines can arise.
  • JP-A-2114210 where by means of a hinged shearing device isolation from
  • the invention has for its object to develop a new separation and finishing process, in which the above disadvantages are avoided and as few process steps must be applied. Also, the precision of the separation process should be high.
  • This object is achieved by a new method, in which not the end of an optical fiber 1, 2,3 is processed after the rough cutting, but at the first at the points that are to be cut later, partially the insulation 3 and der Mantel or the non-conductive layers of the optical fiber are removed, and then to the bare LWL 1, 2 (at best with his Cladding 2) by means of conventional circular saw 7 or by means of conventional saw blade with diamond or CNB trim or by any other suitable method precisely cut through while preferably the same time to edit the end face (end face 11 of the optical fiber) optimally.
  • the location (puncture) at which partial isolation is removed is as narrow as possible and the remaining shoulders of the insulation that define the puncture support the fiber against the separation force of the circular saw or wafer or the like.
  • the optical fiber or its insulation is thereby supported in the shoulder region by externally applied retaining jaws 8,9 or the like.
  • Saws are tools with a defined cutting edge. They have at least one geometrically determined, suitable for machining edge
  • Typical examples are grinding wheels (with different types of grain bonding),
  • the separating tool is inventively characterized in that it has a separating edge with at least one defined or undefined sheath and has at least one of its two side surfaces a defined or undefined cutting edge for polishing the cut surfaces.
  • the invention is not limited to fiber-optic cables, but includes all cables in the conventional sense, thus also cables that can conduct electrical signals instead of light waves.
  • Fig1. shows a conventional solid core or solid wire. It consists of a glass fiber 1 with a cladding 2 and a tightly surrounding shell. 3
  • optical fiber 200 ⁇ m with cladding 230 ⁇ m and a shell Diameter about 0.2mm, optical fiber 200 ⁇ m with cladding 230 ⁇ m and a shell as
  • Outer jacket with a diameter of 1.2 to 1, 5 mm For commercially available polymer fibers, an outer sheath made of plastic is added, so that the total diameter is, for example, about 2.3 mm.
  • the optical fiber LWL 1, 2, 3 is inserted into the device and fixed in the clamping device 8,9.
  • the outer insulation is removed until the cladding 2 by means of the device according to the invention, wherein the width of the recess is only so wide that the saw blade with a diamond coating does not have to cut insulation material.
  • the puncture takes place with the distance x.
  • the device consists of a construction in which one or more discs 4 rotate about the conductor, which are equipped with grinding or milling discs 4, which in turn rotate themselves about their own axis.
  • the optical fiber is cut by means of the device according to the invention by a saw blade 7, which is equipped with diamonds. This creates a smooth interface with a very low optical attenuation.
  • the thickness of the saw blade_ is about 0.2 mm.
  • the feed movement of the circular saw blade is in a preferred embodiment, motor in cutting direction (rotation of the circular saw blade and feed transverse to the cable axis).
  • the optical waveguide is held by a clamping device and supported by holding jaws up to the shoulders of the exposed fiber.
  • FIG. 3 shows a schematic diagram of the incising unit, consisting of the optical waveguide LWL 1, 2, 3, the milling disc 4, an external pinion 5, a belt 6 and the saw blade 7 with diamond coating.
  • FIG. 4 shows the milling disk 4 resting on the optical waveguide and cladding 1, 2, in two positions, the milling disk 4 rotating completely around the optical waveguide 1, 2, 3. The insulation 3 is removed until cladding 2.
  • FIG. 5 shows the saw blade 7 with diamond coating and the section through the optical waveguide 1, 2, 3 with simultaneous machining of the end faces 11. During cutting, the two end faces 11 are polished simultaneously or subsequently by a feed motion of the grinding wheel 7.
  • FIG. 6 shows how the optical waveguide 1, 2, 3 is held during milling and cutting.
  • FIG. 7 shows how the line 1, 2, 3 is still stripped to the predetermined dimension with form knives 10 at both ends.
  • the blades of the blades 10 may be semi-circular shaped to match the optical fibers 1, 2, 3.
  • Fig8 shows a further advantageous variant for stripping instead of the shape meter 10 for the removal of the outer shell after the severing of the fiber 's.:
  • the optical fiber is cut to length until the cladding 2 is cut.
  • the jaws of the clamping device 8,8', or 9,9 ' is then stripped from the insulation 3 LWL. This is gentler on the fiber optic than the direct use of the doctor blade 10 medium cut through the insulation.
  • the feed movement of the milling and cutting discs 4 and 7 is computer-controlled with the movements of the clamping device 8,9 and the holding jaws 8.9, whereby a continuous operation of the device is ensured.
  • the unwinding of the fiber 's of a drum and the setting of the required fiber length are synchronized with the inventive device. LIST OF REFERENCE NUMBERS

Abstract

L'invention concerne un nouveau procédé permettant de séparer et d'effectuer des finitions sur des fibres optiques (1, 2, 3), ainsi qu'un dispositif approprié. L'invention permet, selon ledit procédé, d'éliminer, avant le processus de séparation, l'isolation (3), en au moins un point, par une lame ou une fraise rotative (5), jusqu'à la gaine optique (2) et ensuite, de procéder en une seule étape d'usinage, à la séparation de la fibre optique (1, 2) et au polissage des extrémités de la fibre optique (11). Les fibres optiques sont maintenues par les mâchoires mobiles (8, 9) d'un dispositif de serrage (8, 9), qui s'appuient sur les épaulements de l'isolation des fibres optiques. A cet effet, le point dénudé présente une largeur telle que le tranchant de la lame de scie circulaire à revêtement diamant (7) ne touche pas l'isolation. Le dénudage à ajustage précis qui s'ensuit, afin d'utiliser les extrémités de fibres optiques dans des ferrules, avec un retrait de la fibre optique, s'effectue soit à l'aide de lames (10) qui percent l'isolation (3) et l'enlèvent par un mouvement transversal, soit par des mâchoires de serrage segmentées (8, 8'; 9, 9') qui enlèvent l'isolation (3) par un mouvement transversal, une fois, qu'au cours de la première étape, un autre point de l'isolation (3) allant jusqu'à la gaine optique (2) a été dégagé, au moyen d'une lame rotative (4) ou d'une fraise rotative (4).
PCT/IB2005/052244 2004-07-09 2005-07-06 Procede et dispositif pour separer et effectuer des finitions sur des fibres optiques WO2006006131A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112005001098T DE112005001098A5 (de) 2004-07-09 2005-07-06 Verfahren und Vorrichtung zum Durchtrennen und Endbearbeiten von Lichtwellenleitern

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1189/04 2004-07-09
CH11892004 2004-07-09

Publications (1)

Publication Number Publication Date
WO2006006131A1 true WO2006006131A1 (fr) 2006-01-19

Family

ID=35107006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2005/052244 WO2006006131A1 (fr) 2004-07-09 2005-07-06 Procede et dispositif pour separer et effectuer des finitions sur des fibres optiques

Country Status (2)

Country Link
DE (1) DE112005001098A5 (fr)
WO (1) WO2006006131A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029390A (en) * 1974-12-23 1977-06-14 Bell Telephone Laboratories, Incorporated Optical fiber group splicing technique and apparatus employing unique foldable holder
JPH1144821A (ja) * 1997-07-25 1999-02-16 Yazaki Corp 光ファイバアレイの製造方法
US5929136A (en) * 1997-06-13 1999-07-27 Xerox Corporation Coated carriers
US20020114609A1 (en) * 2001-02-20 2002-08-22 Fabrice Thebault Method of stripping an optical fiber and a fiber obtained thereby
DE10209461A1 (de) * 2002-03-05 2003-10-02 Bernhard Schaefer Werkzeug Und Verfahren und Vorrichtung zur Herstellung eines Lichtwellenleiterendes
JP2004029739A (ja) * 2003-03-31 2004-01-29 Yotsugi Co Ltd 光ファイバケーブルの分岐方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029390A (en) * 1974-12-23 1977-06-14 Bell Telephone Laboratories, Incorporated Optical fiber group splicing technique and apparatus employing unique foldable holder
US5929136A (en) * 1997-06-13 1999-07-27 Xerox Corporation Coated carriers
JPH1144821A (ja) * 1997-07-25 1999-02-16 Yazaki Corp 光ファイバアレイの製造方法
US20020114609A1 (en) * 2001-02-20 2002-08-22 Fabrice Thebault Method of stripping an optical fiber and a fiber obtained thereby
DE10209461A1 (de) * 2002-03-05 2003-10-02 Bernhard Schaefer Werkzeug Und Verfahren und Vorrichtung zur Herstellung eines Lichtwellenleiterendes
JP2004029739A (ja) * 2003-03-31 2004-01-29 Yotsugi Co Ltd 光ファイバケーブルの分岐方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31) *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) *

Also Published As

Publication number Publication date
DE112005001098A5 (de) 2007-08-09

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