DE4310913C1 - Termination device for optical fibres - Google Patents

Termination device for optical fibres

Info

Publication number
DE4310913C1
DE4310913C1 DE19934310913 DE4310913A DE4310913C1 DE 4310913 C1 DE4310913 C1 DE 4310913C1 DE 19934310913 DE19934310913 DE 19934310913 DE 4310913 A DE4310913 A DE 4310913A DE 4310913 C1 DE4310913 C1 DE 4310913C1
Authority
DE
Germany
Prior art keywords
optical
termination device
optical fibres
termination
optical waveguide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE19934310913
Other languages
German (de)
Inventor
Lothar Dipl Ing Finzel
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.)
Corning Research and Development Corp
Original Assignee
Siemens 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
Priority claimed from DE19924236429 external-priority patent/DE4236429C1/en
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE19934310913 priority Critical patent/DE4310913C1/en
Application granted granted Critical
Publication of DE4310913C1 publication Critical patent/DE4310913C1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4471—Terminating devices ; Cable clamps
    • 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
    • G02B6/241—Light guide terminations
    • 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
    • G02B6/241—Light guide terminations
    • G02B6/243—Light guide terminations as light absorbers
    • 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
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

By means of the termination device (1), at least one optical fibre (3) is fixed, whose end ends in an optical trap (7). To increase the absorption, it has a splice (29) or a microbending (30). <IMAGE>

Description

Die Erfindung betrifft eine Abschlußeinrichtung für mindes­ tens einen Lichtwellenleiter nach dem Oberbegriff des Patent­ anspruchs 1.The invention relates to a termination device for at least tens an optical waveguide according to the preamble of the patent claim 1.

Bei Lichtwellenleitern, insbesondere bei Ausgangs-Lichtwel­ lenleitern von Kopplern, muß dafür gesorgt werden, daß in optischen Netzen keine Reflexionen auftreten. Die Licht­ wellenleiter werden deshalb in Abschlußeinrichtungen fest­ gelegt, deren optischer Sumpf Reflexionen an den Lichtwellen­ leiter-Enden verhindert. Die erreichten Rückflußdämpfungen liegen zwischen 45 und 50 dB. Bei einigen Anwendungsfällen reicht diese Rückflußdämpfung jedoch nicht aus.With optical fibers, especially with output lightwaves lenleitern of couplers, must be ensured that in no reflections occur in optical networks. The light Waveguides are therefore fixed in termination facilities placed whose optical swamp reflections on the light waves Prevents conductor ends. The return loss achieved are between 45 and 50 dB. In some use cases however, this return loss is not sufficient.

Aufgabe der Erfindung ist es, eine Abschlußeinrichtung für Lichtwellenleiter mit höherer Rückflußdämpfung anzugeben.The object of the invention is to provide a termination device for Specify optical fibers with higher return loss.

Lösungen dieser Aufgabe sind in den unabhängigen Patentan­ sprüchen 1 und 2 angegeben.Solutions to this problem are in the independent patent say 1 and 2.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unter­ ansprüchen beschrieben.Advantageous developments of the invention are in the sub claims described.

Besonders vorteilhaft ist der geringe Aufwand zur Erhöhung der Dämpfung. Durch Herstellen definierter "schlechter" thermischer Spleiße wird die Dämpfung beträchtlich erhöht. Ebenso kann dies durch eine Mikrobiegung des Lichtwellenlei­ terendes erfolgen, die im erhitzten Zustand erzeugt wird. Hierzu kann wiederum ein elektrisches Schweißgerät verwendet werden. Durch abgeschrägte Lichtwellenleiterenden wird die Dämpfung noch weiter erhöht. The low outlay for increasing is particularly advantageous damping. By creating defined "worse" Thermal splices significantly increase damping. This can also be done by microbending the lightwave terendes done that is generated in the heated state. An electrical welding device can in turn be used for this become. The beveled fiber optic ends Attenuation increased even further.  

Die Erfindung wird anhand von Ausführungsbeispielen näher erläutert.The invention is illustrated by means of exemplary embodiments explained.

Es zeigen:Show it:

Fig. 1 eine als Kapillare ausgebildete Abschlußeinrichtung mit einem gespleißten Lichtwellenleiter und Fig. 1 is a capillary formed with a spliced optical fiber and

Fig. 2 eine Abschlußeinrichtung mit einem gebogenen Lichtwellenleiterende. Fig. 2 shows a termination device with a curved optical fiber end.

Fig. 1 zeigt eine als Kapillare 2 ausgebildete Abschlußein­ richtung 1. Im Inneren der Kapillare ist ein mit seinem Coating versehener Lichtwellenleiter 3 angeordnet, der einen Spleiß 29 mit hoher Dämpfung von ca. 10-15 dB aufweist. Der Spleiß wird in einem thermischen Spleißgerät, wie es bei­ spielsweise von der Firma RXS, Profilstraße 4, W-5800 Hagen 1 bezogen werden kann, hergestellt. Als optischer Sumpf wird beispielsweise ein geeigneter Kleber 7 (auch Schmelzkleber, Silikon, Bitumen) verwendet, mit dem der Lichtwellenleiter 3 fixiert wird. Fig. 1 shows a trained as a capillary 2 Abschlussein direction 1st Arranged in the interior of the capillary is an optical waveguide 3 with its coating, which has a splice 29 with high attenuation of approximately 10-15 dB. The splice is produced in a thermal splicer, as can be obtained for example from RXS, Profilstrasse 4, W-5800 Hagen 1. A suitable adhesive 7 (also hot-melt adhesive, silicone, bitumen), for example, is used as the optical sump, with which the optical waveguide 3 is fixed.

Die Lichtabsorption wird durch einen dunklen Klebstoff, vorzugsweise schwarz, noch weiter erhöht.The light absorption is through a dark glue, preferably black, further increased.

In Fig. 2 ist eine Variante der Abschlußeinrichtung darge­ stellt, bei dem das vom Coating befreite Ende des Licht­ wellenleiters 3 eine Mikrobiegung 30 aufweist. Durch den kleinen Krümmungsradius von ca. 1 mm wird das Licht fast vollständig ausgekoppelt.In Fig. 2 is a variant of the termination Darge provides, in which the coated end of the light waveguide 3 has a micro-bend 30 . Due to the small radius of curvature of approx. 1 mm, the light is almost completely coupled out.

Die Abschlußeinrichtungen können selbstverständlich zur Auf­ nahme von mehreren Lichtwellenleitern auch eine rechteckige Form aufweisen, in die parallel liegende Lichtwellenleiter eingefügt werden. Ihre Aufnahmeöffnung kann hierbei auch Nuten zum Festlegen der Lichtwellenleiter und gegebenenfalls einen Freiraum für deren abgebogene Enden aufweisen.The termination facilities can of course be on I also took a rectangular one from several optical fibers Have shape in the parallel optical fiber be inserted. Your receiving opening can also Grooves for fixing the optical fibers and if necessary have a space for their bent ends.

Claims (4)

1. Abschlußeinrichtung (1) für mindestens einen Lichtwellen­ leiter (3), bei der das Ende des Lichtwellenleiters (3) in einem optischen Sumpf (7) endet nach Patent 42 36 429, dadurch gekennzeichnet, daß der Lichtwellenleiter (3) einen Spleiß (29) mit hoher Dämpfung aufweist.1. termination device ( 1 ) for at least one optical fiber ( 3 ), in which the end of the optical fiber ( 3 ) ends in an optical sump ( 7 ) according to Patent 42 36 429, characterized in that the optical fiber ( 3 ) a splice ( 29 ) with high damping. 2. Abschlußeinrichtung (1) für mindestens einen Lichtwellenleiter (3), bei der das Ende des Lichtwellenleiters (3) in einem optischen Sumpf (7) endet, dadurch gekennzeichnet, daß der Lichtwellenleiter (3) eine Mikrobiegung (30) aufweist.2. Termination device ( 1 ) for at least one optical waveguide ( 3 ), in which the end of the optical waveguide ( 3 ) ends in an optical sump ( 7 ), characterized in that the optical waveguide ( 3 ) has a micro-bend ( 30 ). 3. Abschlußeinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Mikrobiegung (30) einen Radius 2 mm aufweist.3. Closing device according to claim 2, characterized in that the micro-bend ( 30 ) has a radius of 2 mm. 4. Abschlußeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Ende des Lichtwellenleiters (3) abgeschrägt ist.4. Termination device according to one of the preceding claims, characterized in that the end of the optical waveguide ( 3 ) is chamfered.
DE19934310913 1992-10-28 1993-04-02 Termination device for optical fibres Expired - Lifetime DE4310913C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934310913 DE4310913C1 (en) 1992-10-28 1993-04-02 Termination device for optical fibres

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924236429 DE4236429C1 (en) 1992-10-28 1992-10-28 Reflection-free end termination for optical fibres - terminates ends of inserted optical fibres in optical sump, with fibre path following corrugations of upper and lower parts of connector
DE19934310913 DE4310913C1 (en) 1992-10-28 1993-04-02 Termination device for optical fibres

Publications (1)

Publication Number Publication Date
DE4310913C1 true DE4310913C1 (en) 1994-07-21

Family

ID=25919911

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934310913 Expired - Lifetime DE4310913C1 (en) 1992-10-28 1993-04-02 Termination device for optical fibres

Country Status (1)

Country Link
DE (1) DE4310913C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013033280A1 (en) * 2011-09-02 2013-03-07 Corning Cable Systems Llc Attenuated splitter module for low count output channels and related assemblies and methods

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS ERMITTELT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013033280A1 (en) * 2011-09-02 2013-03-07 Corning Cable Systems Llc Attenuated splitter module for low count output channels and related assemblies and methods
CN103827710A (en) * 2011-09-02 2014-05-28 康宁光缆系统有限责任公司 Attenuated splitter module for low count output channels and related assemblies and methods

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Owner name: CCS TECHNOLOGY, INC., WILMINGTON, DEL., US