DE3525005A1 - Detachable connection of optical fibres - Google Patents

Detachable connection of optical fibres

Info

Publication number
DE3525005A1
DE3525005A1 DE19853525005 DE3525005A DE3525005A1 DE 3525005 A1 DE3525005 A1 DE 3525005A1 DE 19853525005 DE19853525005 DE 19853525005 DE 3525005 A DE3525005 A DE 3525005A DE 3525005 A1 DE3525005 A1 DE 3525005A1
Authority
DE
Germany
Prior art keywords
sleeve
optical fibres
detachable connection
pushed
optical
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.)
Withdrawn
Application number
DE19853525005
Other languages
German (de)
Inventor
Max Gerhard Dipl Ing Seitz
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.)
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE19853525005 priority Critical patent/DE3525005A1/en
Publication of DE3525005A1 publication Critical patent/DE3525005A1/en
Withdrawn legal-status Critical Current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
    • G02B6/24—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
    • G02B6/3806—Semi-permanent connections, i.e. wherein the mechanical means keeping the fibres aligned allow for removal of the fibres

Landscapes

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

Abstract

It is at present chiefly demountable connections that are used for the detachable connection of optical fibres. According to the invention, a sleeve whose shape can be changed by the influence of temperature is pushed over the optical fibres to be connected. This sleeve can consist of a metallic material, in particular of a shape-memory alloy. However, it can also be a heat-shrinkable plastic hose.

Description

Zur lösbaren Verbindung von Lichtwellenleitern werden zur Zeit vor allem Steckverbindungen verwendet, die jedoch we­ gen der geringen einzuhaltenden Axialtoleranzen (<10 µm) nur durch aufwendige Fertigungsverfahren herstellbar sind.For the detachable connection of optical fibers are used for Time mainly used plug connections, but we due to the small axial tolerances to be observed (<10 µm) can only be produced by complex manufacturing processes.

Bei der Verbindung von Lichtwellenleitern ist es erforder­ lich, daß der Lichtwellenleiter (zum Beispiel Glasfaser) bzw. dessen optischer Mittelpunkt zentrisch und hochgenau zu einem entsprechenden Paßdurchmesser angeordnet ist. Damit bei lösbaren Steckverbindungen von Lichtwellenlei­ tern mit beliebigen Steckerpaarungen eine geringe Kopp­ lungsdämpfung erreicht werden kann, muß einerseits der Konzentrizitätsfehler zwischen der Aufnahmeöffnung für den Lichtwellenleiter und dem äußeren Umfang des ent­ sprechenden Steckzylinders geringer als 5 µm sein, wäh­ rend andererseits die Durchmessertoleranzen der Aufnah­ meöffnungen und der Außendurchmesser der Steckzylinder weniger als 2 µm betragen müssen.It is required when connecting optical fibers Lich that the optical fiber (for example glass fiber) or its optical center centrally and highly accurate is arranged to a corresponding pass diameter. So with detachable plug connections from Lichtwellenlei low coupling with any pair of plugs damping can be achieved on the one hand Concentricity error between the opening for the optical fiber and the outer circumference of the ent speaking plug-in cylinder less than 5 microns, wuh On the other hand, the diameter tolerances of the receptacle openings and the outside diameter of the plug-in cylinders must be less than 2 µm.

Aus dem DE-GM 81 19 993 ist ein Steckerteil für lösbare Steckverbindungen von Lichtwellenleitern bekannt, bei welchem die Kapillarenaufnahmeöffnung für den Endbereich des vom Mantel befreiten Lichtwellenleiters in eine Buchse aus gut verspanbarem Werkstoff eingebracht ist. Diese Buchse wird dann in das vordere, im Durchmesser er­ weiterte Ende eines Steckzylinders eingepreßt. Bei derar­ tig zusammengesetzten Steckerteilen müssen jedoch sowohl die Buchse als auch der Steckzylinder extrem genau ge­ fertigt werden, um die vorstehend genannten Bedingungen erfüllen zu können.From DE-GM 81 19 993 is a plug part for detachable Connectors of optical fibers known which the capillary receiving opening for the end area of the optical fiber freed from the sheath into one Socket made of easily machinable material is introduced. This bushing is then inserted into the front one, in diameter pressed in further end of a plug-in cylinder. At derar However, composite connector parts must both the socket and the plug cylinder are extremely precise are manufactured to the above conditions  to be able to fulfill.

Der Erfindung liegt die Aufgabe zugrunde, eine lösbare, preiswerte Verbindung von Lichtwellenleitern zu schaffen, bei der die für eine geringe Kopplungsdämpfung erforder­ liche Präzision mit deutlich verringertem Aufwand erzielt werden kann.The invention has for its object to provide a detachable, to create an inexpensive connection of optical fibers, where the required for a low coupling loss precision achieved with significantly reduced effort can be.

Diese Aufgabe wird dadurch gelöst, daß über die zu verbin­ denden Lichtwellenleiterenden, zum Beispiel Glasfaseren­ den, eine durch Temperatureinfluß formveränderbare Hülse geschoben ist. Dadurch wird erreicht, daß durch Tempera­ turveränderung die Lichtwellenleiterenden in axialer Rich­ tung ausgerichtet und die Stirnflächen zusammengepreßt werden.This object is achieved in that the verbin ends of the optical fibers, for example glass fibers the, a sleeve which can be changed in shape by the influence of temperature is pushed. This ensures that by tempera change the optical fiber ends in axial direction device aligned and the end faces pressed together will.

Eine derartige Hülse kann aus einem metallischen Werk­ stoff, zum Beispiel einer Gedächtnislegierung, bestehen.Such a sleeve can be made from a metallic work material, for example a memory alloy.

Wenn die Hülse aus einem metallischen Werkstoff besteht, wird sie zum Beispiel auf 100°C erwärmt, die Lichtwellen­ leiterenden eingeschoben und die Hülse wieder abgekühlt.If the sleeve is made of a metallic material, for example, it is heated to 100 ° C, the light waves inserted and the sleeve cooled again.

Wenn die Hülse aus einer Gedächtnislegierung besteht, wird die bei der Raumtemperatur hergestellte Hülse auf zum Beispiel minus 10°C abgekühlt. Dadurch öffnet sich der Innendurchmesser, so daß die zu verbindenden Lichtwel­ lenleiterenden eingeschoben werden können. Bei Erwärmung auf Raumtemperatur wird der Innendurchmesser wieder kleiner und die Lichtwellenleiterenden geklemmt.If the sleeve is made of a memory alloy, is the sleeve made at room temperature for example cooled down to minus 10 ° C. This opens up the inner diameter, so that the Lichtwel to be connected can be inserted. When warming the inner diameter returns to room temperature smaller and the fiber optic ends clamped.

Wenn die Hülse aus einem wärmeschrumpfbaren Kunststoff­ schlauch besteht, geht die Verarbeitung in folgenden Schritten vor sich:If the sleeve is made of a heat-shrinkable plastic hose exists, the processing goes in the following Steps ahead:

  • 1. Schrumpfschlauch ablängen, auf glatte Schnittkanten achten, 1. Cut the shrink tube to length on smooth cut edges respect, think highly of,  
  • 2. über die zu umhüllenden Lichtwellenleiterenden schieben und2. via the optical fiber ends to be enveloped push and
  • 3. mit Wärmegerät - zum Beispiel Heißluftgebläse - von einem Ende aus aufschrumpfen.3. with a heating device - for example a hot air blower - from shrink from one end.

Claims (4)

1. Lösbare Verbindung von Lichtwellenleitern, da­ durch gekennzeichnet, daß über die zu verbindenden Lichtwellenleiterenden, zum Beispiel Glas­ faserenden, eine durch Temperatur formveränderbare Hülse geschoben ist.1. Detachable connection of optical fibers, characterized in that a fiber shape-changing sleeve is pushed over the optical fiber ends to be connected, for example glass fiber ends. 2. Verbindung nach Anspruch 1, dadurch ge­ kennzeichnet, daß eine Hülse aus metalli­ schem Werkstoff über die zu verbindenden Lichtwellenlei­ terenden geschoben ist.2. Connection according to claim 1, characterized ge indicates that a sleeve made of metallic chemical material about the optical waveguide to be connected terenden is pushed. 3. Verbindung nach Anspruch 2, dadurch ge­ kennzeichnet, daß die Hülse aus einer Ge­ dächtnislegierung besteht.3. A compound according to claim 2, characterized ge indicates that the sleeve from a Ge memory alloy exists. 4. Verbindung nach Anspruch 1, dadurch ge­ kennzeichnet, daß über die zu verbindenden Lichtwellenleiterenden ein wärmeschrumpfbarer Kunststoff­ schlauch geschoben ist4. A compound according to claim 1, characterized ge indicates that over to be connected Optical fiber ends are a heat-shrinkable plastic hose is pushed
DE19853525005 1985-07-12 1985-07-12 Detachable connection of optical fibres Withdrawn DE3525005A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853525005 DE3525005A1 (en) 1985-07-12 1985-07-12 Detachable connection of optical fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853525005 DE3525005A1 (en) 1985-07-12 1985-07-12 Detachable connection of optical fibres

Publications (1)

Publication Number Publication Date
DE3525005A1 true DE3525005A1 (en) 1987-01-15

Family

ID=6275661

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853525005 Withdrawn DE3525005A1 (en) 1985-07-12 1985-07-12 Detachable connection of optical fibres

Country Status (1)

Country Link
DE (1) DE3525005A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375380A2 (en) * 1988-12-22 1990-06-27 Kingston Technologies, Inc. Memory polymer optical fiber splicer and methods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7328640U (en) * 1973-08-04 1973-11-15 Felten & Guilleaume Kabelwerke Ag COUPLING THE ENDS OF TWO FIBER OPERATING FIBERS
DE2425798A1 (en) * 1973-06-01 1975-01-09 Plessey Handel Investment Ag OPTICAL CONNECTING DEVICE FOR CONNECTING TWO OPTICAL FIBERS
DE2621127A1 (en) * 1975-05-15 1976-11-25 Int Standard Electric Corp PROCESS FOR MANUFACTURING A PERMANENT LIGHT GUIDE COUPLING
DE2901918A1 (en) * 1978-01-19 1979-07-26 Amp Inc COUPLING TO CONNECT OPTICAL FIBERS TO THE ENDS
US4261644A (en) * 1978-11-30 1981-04-14 The United States Of America As Represented By The Secretary Of The Navy Method and article of manufacturing an optical fiber connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2425798A1 (en) * 1973-06-01 1975-01-09 Plessey Handel Investment Ag OPTICAL CONNECTING DEVICE FOR CONNECTING TWO OPTICAL FIBERS
DE7328640U (en) * 1973-08-04 1973-11-15 Felten & Guilleaume Kabelwerke Ag COUPLING THE ENDS OF TWO FIBER OPERATING FIBERS
DE2621127A1 (en) * 1975-05-15 1976-11-25 Int Standard Electric Corp PROCESS FOR MANUFACTURING A PERMANENT LIGHT GUIDE COUPLING
DE2901918A1 (en) * 1978-01-19 1979-07-26 Amp Inc COUPLING TO CONNECT OPTICAL FIBERS TO THE ENDS
US4261644A (en) * 1978-11-30 1981-04-14 The United States Of America As Represented By The Secretary Of The Navy Method and article of manufacturing an optical fiber connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375380A2 (en) * 1988-12-22 1990-06-27 Kingston Technologies, Inc. Memory polymer optical fiber splicer and methods
EP0375380A3 (en) * 1988-12-22 1991-10-23 Kingston Technologies, Inc. Memory polymer optical fiber splicer and methods

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee