EP0830627A1 - Splicing device for welding optical fibres - Google Patents

Splicing device for welding optical fibres

Info

Publication number
EP0830627A1
EP0830627A1 EP19960919632 EP96919632A EP0830627A1 EP 0830627 A1 EP0830627 A1 EP 0830627A1 EP 19960919632 EP19960919632 EP 19960919632 EP 96919632 A EP96919632 A EP 96919632A EP 0830627 A1 EP0830627 A1 EP 0830627A1
Authority
EP
European Patent Office
Prior art keywords
optical
electrodes
welding
welded
ends
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Withdrawn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
EP19960919632
Other languages
German (de)
French (fr)
Inventor
Dieter Krause
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
Priority to DE19520734 priority Critical
Priority to DE19520734 priority
Application filed by Siemens AG filed Critical Siemens AG
Priority to PCT/DE1996/000991 priority patent/WO1996041220A1/en
Publication of EP0830627A1 publication Critical patent/EP0830627A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/24Coupling light guides
    • G02B6/255Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch

Abstract

The invention concerns a splicing device for welding optical fibres in or closely against optical components (OBE), in particular optical fibre plugs. The splicing device comprises: an optical device for observing the ends of the optical fibres to be welded to one another; and two electrodes (E) which are spaced apart from each other and cause the optical fibres to be welded by striking an arc. Owing to a stepped arrangement of the electrodes (E) on parallel axes (EA) and spaced apart, the optical fibre ends to be welded can be observed in the welding position. The stepped arrangement of the electrodes (E) enables the optical fibres to be observed in the region of an optical fibre plug groove (NU) along a transverse axis, for example, and then welded together in the same position.

Description

description

Splicing device for welding optical fibers

For the releasable connection of optical fibers are used light waveguide plug, in its hollow-cylindrical and made of ceramic existing plug parts which are to be fibers to be coupled Glasfa¬ centrally as possible glued. It is known, glass fiber chopped into the to be coupled Endbe- rich of the plug parts already glued before and the secondary optical waveguides within this Stecker¬ parts using an immersion liquid to dock. reaching the advantage of a precise centering of the glass fibers in Koppelbe¬ However, the disadvantage of a high attenuation of the coupling points within the plug parts faces here. There is also the risk of drying the Immersionsflüssig¬ ness. Also, the introduction of impurities in the Koppel¬ range, can hardly be avoided during the insertion of the optical fibers into the associated plug parts.

In the earlier patent application with the application number PCT / DE95 / 00413 was a splicing devices for welding of optical fibers in or th close to the optical Bauelemen¬ proposed in particular optical fiber connectors, with which ange¬ stuck, for example, in ceramic plug parts glass fibers in or close to the plug parts can be welded to wei¬ terführende optical fibers. The accessibility of the splices located within the connector parts can thereby be ensured for example by a corresponding transverse axial groove of a plug part. The proposed purpose is the splice Er¬ knowledgeable based on that for a pivoting of the plug part and held in a first receiving therein einge¬ glued glass fiber between the welding electrodes and in an axially sliding the gehalte¬ in a second recording NEN optical waveguide optimal conditions for the Justie¬ tion are given to be joined optical waveguides and for the quality of the weld. In addition to the use as a ge marked Steckerspleißgerät the splicing device may generally be used close to other optical components also for the welding of light waveguides in or.

must direction in the proposed in the earlier application Spleißein¬ the connector to the cross-axial groove may be twisted at an angle of for example 60 °, so that in a first rotational position that can be observed to verschweißen¬ together the ends of the optical waveguide and the second in a rotational position of the welding of the optical waveguide may be performed by igniting an electric arc between two spaced-apart electrodes.

From DD 280 399 Bl a splicing device for light waveguide is known, in which the axes of the two welding electrodes at an angle of 90 ° to each other angeord- net are to fen to schaf¬ a better possibility of observation. Here, the optical waveguides are to be welded au¬ ßerhalb the arc center positioned. In a Abnut¬ the electrode tips Zung advised the optical fibers even further from the center of the arc.

The specified in claim 1. invention is the problem zu¬ reason, the surfaces in the earlier patent application Aktenzei¬ better to ver¬ 195 07 885.3 proposed splicing device such that viewing of the ends to be welded of the optical fibers is made possible in the welding position.

The invention is based on the recognition that can be performed by a stepped arrangement of the electrodes in the same position of the optical components, the observation and the welding of the optical fiber ends. Between the step-disposed electrode tips while a äu¬ tremely stable, slightly asymmetrical formed arc is ignited, which enables a high quality welded joint of the optical fiber ends.

Due to the parallel alignment of the axes of the electrodes entire construction cost can be reduced and the adjustment of the electrode distance can be simplified. In this Anord¬ drying, the tips of the electrodes are diametrically gegenüberlie¬ quietly arranged so that the glass fibers are to be welded in the center of the arc, where the optimal rule Schweißbe- conditions. Even dens spiers at a wear Elektro¬ the weld remains at the center of Licht¬ arc.

An embodiment of the invention is illustrated in the drawing and will be described in more detail below.

Show it

1 shows a longitudinal section through a fiber optic connector, which in the area of ​​a cross-axial groove the

Welding a first light wave conductor glued lenleiter allows a second, further Lichtwel¬,

2 shows a step arrangement of the electrodes through which the observation and the welding of the optical fiber ends is made possible in the same position shown in Figure 1 of the optical fiber connector, and

Figure 3 trodes a cross section through the corresponding Spleißein¬ direction at the level of the Elek¬ shown in FIG. 2

1 shows a longitudinal section through a designated generally by OBE optical component in which it is ei¬ nen optical fiber connector made of ceramic. In the opti- cal component OBE a short piece of a first optical waveguide LWL1 is glued, the NU of the optical component OBE to be connected to a second secondary optical waveguide LWL2 by Schwei¬ SEN in the area of ​​a cross-axial groove. With KH a crimp sleeve is be¬ oversubscribed, the steel existing connection part VT is to connect the cable of the second optical fiber with the LWL2 ke¬ ramischen body of the optical component via a OBE. Laying down of the optical component OBE in the axial direction is formed an annular abutment see vorge ANS.

Figure 2 shows a highly simplified schematic lung Darstel¬ a stepped arrangement of two parallel spaced with respect to each other arranged electrodes E which, by ignition of an electric arc welding of the two presented in Figure 1 darge optical waveguide LWL1 and LWL2. Employed in ei¬ ne hollow cylindrical component accommodating BA optical component OBE is aligned with its perpendicular and parallel to the groove base NUG the groove NU extending main axes X and Y as to the two electrodes axis EA of the electrodes E, that in the region of the groove NU an arc can be ignited. On the other hand, the ends of the two optical waveguides to be welded LWL1 and LWL2 can designated along with OA and the optical axis can be observed by the groove portion verlaufen¬ in this position. In the illustrated exemplary example, the angle α between the optical axis OA and a perpendicular to the electrode axis EA ver¬ current line 22 ° and the angle beta between the major axis X and to the electrode axes EA parallel line 26 °.

Figure 3 shows a cross section through a splicing device for welding together the two optical waveguides LWL1 and LWL2 (see Figure 1) of the surfaces in the prior patent application with the file reference to the stages of arrangement of the two electrodes E and the inclined course of the optical axis OA 195 splicing described 07 885.3 corresponds largely. The two stepped electrodes arranged E are each connected via terminals KLE with associated welding cables SKA for supplying the welding current. the end-mounted stop pins are AST see vorge for the input position, the distance between the tips of the two Elek¬ trodes E.

On serving as the electrode holder body GK an axis ACL is arranged on which a flap is mounted pivotably KLA bar. The flap KLA turn carries an opti¬ cal means for observing the OE with each other to verbin¬ Denden ends of the optical waveguide LWL1 and LWL2 (see Figure l). The course of the optical axis OA of the optical device OE with respect to the stepped disposed Elektro¬ to E has already been explained in connection with FIG. 2 The optical device OE can be swung on the flap KLA about an axis AC2, ie it can be applied to the flap KLA during transportation of the splicing device. The opti- cal means OE but may be embodied as an imaging device as a microscope or which maps the observed splice onto a screen.

In the above already mentioned base body GK is also a lighting device Bell own sets whose Längsach¬ se in alignment with the optical axis OA of the optical Einrich¬ tung OE is aligned and the area illuminating the observable Splei߬ between the stepped electrodes arranged E from below , It will be appreciated that the observation of the splice wer¬ made in the same position the can, in which also the welding of the two ends of the optical waveguide is made LWL1 and LWL2.

Claims

claim
1. splicing device for welding optical fibers (LWL1, LWL2) in or close to optical components (OBE), in particular optical fiber connectors, with
- an optical device for observing the ends to be welded ends of the optical waveguides (LWL1, LWL2), and having
- two spaced-apart electrodes (E) which bring about by ignition of an electric arc welding of the optical waveguide (LWL1, LWL2), wherein
- by a stepped arrangement of the electrodes (E) having not extending in a straight line electrode axes (EA) observing the ends to be welded of the Lichtwel- lenleiter (LWL1, LWL2) is allowed in the welding position, and
- mixed with each other at a distance substantially pa¬ rallele electrode axis (EA).
EP19960919632 1995-06-07 1996-06-05 Splicing device for welding optical fibres Withdrawn EP0830627A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19520734 1995-06-07
DE19520734 1995-06-07
PCT/DE1996/000991 WO1996041220A1 (en) 1995-06-07 1996-06-05 Splicing device for welding optical fibres

Publications (1)

Publication Number Publication Date
EP0830627A1 true EP0830627A1 (en) 1998-03-25

Family

ID=7763806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960919632 Withdrawn EP0830627A1 (en) 1995-06-07 1996-06-05 Splicing device for welding optical fibres

Country Status (4)

Country Link
US (1) US6120192A (en)
EP (1) EP0830627A1 (en)
CA (1) CA2223983A1 (en)
WO (1) WO1996041220A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2226052A1 (en) * 1997-02-13 1998-08-13 Diamond Sa Plug for an optical fiber plug connector and method of its manufacture
JP2002250836A (en) * 2001-02-23 2002-09-06 Sumitomo Electric Ind Ltd Fusion splicing method for optical fiber
US7488125B2 (en) * 2004-01-23 2009-02-10 Fujikura Ltd. Optical fiber fusion splicer and covering device for high voltage part thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52115233A (en) * 1976-03-24 1977-09-27 Nippon Telegr & Teleph Corp <Ntt> Optical fiber welder
JPH0352604B2 (en) * 1983-01-26 1991-08-12 Nippon Telegraph & Telephone
EP0144603A3 (en) * 1983-11-10 1986-06-25 Northern Telecom Limited Apparatus for aligning an article relative to a datum
JPS62195607A (en) * 1986-02-22 1987-08-28 Fujikura Ltd Splicing method for optical fiber
US5002351A (en) * 1988-07-05 1991-03-26 Preformed Line Products Company Fusion splicer for optical fibers
GB8820662D0 (en) * 1988-09-01 1988-10-05 British Telecomm Optical fibre splice
DD280399B1 (en) * 1989-02-28 1993-01-21 Oberspree Habelwerk Gmbh Device for welding and protecting light waveguides
SE502563C2 (en) * 1994-03-08 1995-11-13 Ericsson Telefon Ab L M Method and device for splicing optical fibers, and the use of the method for preparing a splice having a predetermined attenuation
US5524163A (en) * 1994-12-29 1996-06-04 Sumitomo Electric Industries, Ltd. Apparatus for splicing optical fibers and method for the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9641220A1 *

Also Published As

Publication number Publication date
WO1996041220A1 (en) 1996-12-19
CA2223983A1 (en) 1996-12-19
US6120192A (en) 2000-09-19

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Legal Events

Date Code Title Description
17P Request for examination filed

Effective date: 19971204

AK Designated contracting states:

Kind code of ref document: A1

Designated state(s): DE FR GB IT NL SE

17Q First examination report

Effective date: 19980430

18D Deemed to be withdrawn

Effective date: 19980911