WO1990004804A1 - A method of manufacturing an optical switch - Google Patents

A method of manufacturing an optical switch Download PDF

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Publication number
WO1990004804A1
WO1990004804A1 PCT/DE1989/000603 DE8900603W WO9004804A1 WO 1990004804 A1 WO1990004804 A1 WO 1990004804A1 DE 8900603 W DE8900603 W DE 8900603W WO 9004804 A1 WO9004804 A1 WO 9004804A1
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WO
WIPO (PCT)
Prior art keywords
plate
grooves
groove
switch
coupling point
Prior art date
Application number
PCT/DE1989/000603
Other languages
German (de)
French (fr)
Inventor
Wolfgang Gaebler
Günter KNOBLAUCH
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1990004804A1 publication Critical patent/WO1990004804A1/en

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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
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3502—Optical coupling means having switching means involving direct waveguide displacement, e.g. cantilever type waveguide displacement involving waveguide bending, or displacing an interposed waveguide between stationary waveguides
    • G02B6/3508—Lateral or transverse displacement of the whole waveguides, e.g. by varying the distance between opposed waveguide ends, or by mutual lateral displacement of opposed waveguide ends
    • 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
    • G02B6/3803—Adjustment or alignment devices for alignment prior to splicing

Definitions

  • the invention relates to a method for producing guide devices for optical waveguides in an optical switch.
  • optical fibers are to be coupled to one another in a fixed connection or switchably, it is necessary to align the ends of the optical fibers exactly in line with one another.
  • guide devices for the optical fibers are provided.
  • European patent application 0 236 712 describes a method for the correct joining of optical fibers in precisely fitting guide capillaries.
  • a method is described in the cited document in which a guide capillary is formed on two parts of an optical switching device that can be moved against one another by means of a continuous auxiliary fiber in a block made of a curable material on each of the two parts that can be moved against one another.
  • the end of an optical waveguide can be inserted into each of the two shaped capillaries in such a way that the two optical waveguides face one another in alignment on the end face.
  • the switch can then be brought into a different switch position, and an auxiliary fiber can be inserted into one of the capillaries formed in the first process step.
  • this auxiliary fiber forms a further guide capillary on the other part of the switch. This is aligned with the first guide capillary in the second switch position of the switch.
  • the method described above has the particular disadvantage that it is complex and requires a lot of time, since the hardening of the material has to be waited for.
  • the object of the present invention is to avoid this disadvantage of the above-mentioned method and to create a less complex method for producing guide devices for optical waveguides in an optical switch.
  • the object is achieved in that firstly the switch is brought into a defined switching state and secondly that a flat plate is glued inside the switch over the fixed and the movable part of the switch and that thirdly a first groove or a first group of adjacent grooves is inserted into the plate such that the grooves bridge the intended coupling point, fourthly that the plate is cut without force perpendicular to the groove (s) before or directly after the introduction of the first groove (s) at the coupling point, that fifthly by actuation of the switch, the two parts of the plate are brought into a second switching position with respect to one another, that sixthly at least one of the first grooves extends beyond the coupling point by a second groove in the other part of the plate that is exactly aligned with the first groove in the second switching position becomes.
  • the method according to the invention has the advantage that the grooves on the different parts of the switch are automatically arranged in such a way that they are alternately aligned with one another in the different switch positions. No adjustment of the switching path of the switch is necessary.
  • the guide devices for the optical waveguides consist of guide grooves into which the optical waveguide ends can be inserted without great difficulty.
  • the orientation of the grooves remains precise with respect to the coupling point Angular deviations, radial and axial deviations of the inserted optical fibers from one another.
  • the method according to the invention can be designed in such a way that the grooves are introduced into the plate by a photolithographic method or by laser ablation.
  • the advantage of this embodiment of the invention is that the grooves can be made with the required accuracy in the plate without a force acting on the plate that could misalign the various parts of the switch.
  • the method can be carried out very quickly, in particular with the aid of laser ablation.
  • the groove width can be adjusted by focusing the ablation laser or adjusting the magnification of the projection device in the photolithography process.
  • the method according to the invention can furthermore be designed in such a way that in the method step in which the second grooves are introduced into the plate, the device for introducing the grooves is positioned by reflection measurements on the first grooves with the aid of a laser with the required accuracy.
  • the advantage of this embodiment of the invention is that the laser for laser ablation or the photolithography mask can be positioned with the required accuracy and that the positioning can take place automatically.
  • the invention can be designed in that the plate is severed at the coupling point by laser ablation.
  • This embodiment of the method has the advantage that the plate can be penetrated with high precision, without greater Heat generation and can be carried out at high speed.
  • FIG. 1 is a side view of the flat plate within the switch
  • Fig. 2 is a plan view of the flat plate
  • FIG. 3 shows a view of the flat plate after it has been severed at the coupling point
  • FIG. 4 shows a view of the flat plate after all the grooves have been introduced.
  • FIG. 1 shows a partial view of the optical switch with the carrier parts 2 and 3, which can be moved relative to one another in the direction perpendicular to the plane of the drawing, and the flat plate 1, which is fastened on the two parts 2 and 3 by means of the hardenable plastic 4 is that the plastic compensates for the height differences between the carrier parts.
  • FIG. 2 shows the flat plate 1 from above after the continuous grooves 5 and 6 have been introduced into the plate by laser ablation or photolithography.
  • the plate is at the coupling point 7 perpendicular to the grooves without force, for. B. severed by laser ablation.
  • the groove 5 is split into two partial grooves 5 ', 5 1 ' and the groove 6 into two partial grooves 6 ', 6' *.
  • the groove 5 'in the first part of the flat plate 1 is extended by the groove ⁇ in the second part of the plate (Fig. 4).
  • the groove 5 1 'in the second part of the plate is extended by the groove 9 in the first part of the plate.
  • the groove 6 'in the first part of the plate is extended by the groove 11 in the second part of the plate.
  • the groove 6 1 1 in the second part of the plate is extended by the groove 10 in the first part of the plate.
  • the device for introducing the further grooves is aligned in each case on the already existing groove 5 ', 5 1 1 , 6', 6 11 such that the newly introduced groove is exactly aligned with the groove to be extended.
  • the device for introducing the groove for example the ablation laser or the photolithography mask
  • the device for introducing the groove is precisely aligned with the aid of a reflection measurement on the groove that is already present and is to be lengthened.
  • the width of the grooves to be introduced can be set in each case by focusing the ablation laser or by enlarging the projection apparatus for the lithography mask.
  • the groove 5 with the 1 'or groove 8 of the groove 5 1' can, by operating the switch, for example, be aligned.
  • the groove 5 '' can be aligned with the grooves 5 'and 9. The same applies to the grooves 6 ', 6 1 ', 10 and 11.
  • optical fiber end is inserted into each of the grooves and fastened there by gluing or clamping.
  • the respectively inserted fiber optic ends are aligned so precisely that a good coupling between the respective aligned optical fibers is created.
  • the transmission losses for the light that is coupled from one optical fiber to the other are very low due to the good angular alignment and the small radial and axial errors in aligning the optical fibers.

Abstract

Through guide grooves (5, 6) for light-waveguides are made in a flat plate (1). The plate, built into an optical switch, is then passed through to the coupling point (7) without the use of force. The switch is adjusted so that the grooves in both parts of the plate are mutually shifted. Each groove ending at the coupling point is extended in precise alignment beyond the coupling point (7) in the other part of the plate by the provision of a new groove (8, 9, 10, 11). Thus each groove can, in both switching positions of the optical switch, find an exactly aligned extension without the need to adjust the switching path of the switch.

Description

Verfahren zum Herstellen eines optischen Schalters Method of making an optical switch
Die Erfindung bezieht sich auf ein Verfahren zum Herstellen von Führungseinrichtungen für Lichtwellenleitereπden in einem optischen Schalter.The invention relates to a method for producing guide devices for optical waveguides in an optical switch.
Sollen zwei Lichtwellenleiter in einer festen Verbindung oder schaltbar miteinander gekoppelt werden, so ist es notwendig, die Lichtwellenleiterenden genau fluchtend zueinander auszurichten. Dazu sieht man Führungseinrichtungen für die Lichtwellenleiter vor.If two optical fibers are to be coupled to one another in a fixed connection or switchably, it is necessary to align the ends of the optical fibers exactly in line with one another. For this purpose, guide devices for the optical fibers are provided.
In der europäischen Patentanmeldung 0 236 712 wird ein Verfahren zum positionsgerechten Fügen von Lichtwellenleitern in paßgenauen Führungskapillaren beschrieben. Unter anderem wird in der genannten Druckschrift ein Verfahren beschrieben, bei dem auf zwei gegeneinander bewegbaren Teilen einer optischen Schalteinrichtung mittels einer durchgehenden Hilfsfaser in jeweils einem Block aus einem aushärtbaren Material auf je einem der beiden gegeneinander bewegbaren Teile eine Führungskapillare geformt wird. Nach Herausziehen der Hilfsfaser kann in jede der beiden geformten Kapillaren das Ende eines Lichtwellenleiters so eingeführt werden, daß die beiden Lichtwellenleiter einander fluchtend stirnseitig gegenüber- stehen. Danach kann der Schalter in eine andere Schaltstellung gebracht werden, und es kann eine Hilfsfaser in eine der im ersten Verfahrensschritt geformten Kapillaren eingelegt werden. In einem noch nicht ausgehärteten weiteren Block formt diese Hilfsfaser auf dem anderen Teil des Schalters eine weitere Führungskapillare. Diese fluchtet mit der ersten Führungs¬ kapillare in der zweiten Schaltstellung des Schalters.European patent application 0 236 712 describes a method for the correct joining of optical fibers in precisely fitting guide capillaries. Among other things, a method is described in the cited document in which a guide capillary is formed on two parts of an optical switching device that can be moved against one another by means of a continuous auxiliary fiber in a block made of a curable material on each of the two parts that can be moved against one another. After the auxiliary fiber has been pulled out, the end of an optical waveguide can be inserted into each of the two shaped capillaries in such a way that the two optical waveguides face one another in alignment on the end face. The switch can then be brought into a different switch position, and an auxiliary fiber can be inserted into one of the capillaries formed in the first process step. In a further block that has not yet cured, this auxiliary fiber forms a further guide capillary on the other part of the switch. This is aligned with the first guide capillary in the second switch position of the switch.
Das oben beschriebene Verfahren hat insbesondere den Nachteil, daß es aufwendig ist und viel Zeit erfordert, da das Aushärten des Materials abgewartet werden muß. Der vorliegenden Erfindung liegt die Aufgabe zugrunde, diesen Nachteil des obengenannten Verfahrens zu vermeiden und ein weniger aufwendiges Verfahren zur Herstellung von Führungs¬ einrichtungen für Lichtwellenleiter in einem optischen Schalter zu schaffen.The method described above has the particular disadvantage that it is complex and requires a lot of time, since the hardening of the material has to be waited for. The object of the present invention is to avoid this disadvantage of the above-mentioned method and to create a less complex method for producing guide devices for optical waveguides in an optical switch.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß erstens der Schalter in einen definierten Schaltzustand gebracht wird und daß zweitens innerhalb des Schalters eine ebene Platte über das feste und das bewegliche Teil des Schalters geklebt wird und daß drittens eine erste Nut oder eine erste Gruppe von nebeneinanderliegenden Nuten in die Platte so eingebracht wird, daß die Nuten die vorgesehene Koppelstelle überbrücken, daß viertens die Platte vor oder direkt nach dem Einbringen der ersten Nut(en) an der Koppelstelle kraftfrei senkrecht zu der Nut (den Nuten) durchtrennt wird, daß fünftens durch Betätigung des Schalters die beiden Teile der Platte in eine zweite Schaltposition zueinander gebracht werden, daß sechstens mindestens eine der ersten Nuten über die Koppel¬ stelle hinaus durch eine mit der ersten Nut in der zweiten Schaltstellung genau fluchtende zweite Nut in dem jeweils anderen Teil der Platte verlängert wird.The object is achieved in that firstly the switch is brought into a defined switching state and secondly that a flat plate is glued inside the switch over the fixed and the movable part of the switch and that thirdly a first groove or a first group of adjacent grooves is inserted into the plate such that the grooves bridge the intended coupling point, fourthly that the plate is cut without force perpendicular to the groove (s) before or directly after the introduction of the first groove (s) at the coupling point, that fifthly by actuation of the switch, the two parts of the plate are brought into a second switching position with respect to one another, that sixthly at least one of the first grooves extends beyond the coupling point by a second groove in the other part of the plate that is exactly aligned with the first groove in the second switching position becomes.
Das erfindungsgemäße Verfahren hat den Vorteil, daß die Nuten auf den verschiedenen Teilen des Schalters automatisch so angeordnet werden, daß sie in den verschiedenen Schalt¬ stellungen wechselweise miteinander fluchten. Es ist keine Justierung des Schaltweges des Schalters notwendig. Die Führungseinrichtungen für die Lichtwellenleitenden bestehen aus Führungsnuten, in die die Lichtwellenleiterenden ohne große Schwierigkeiten eingelegt werden können.The method according to the invention has the advantage that the grooves on the different parts of the switch are automatically arranged in such a way that they are alternately aligned with one another in the different switch positions. No adjustment of the switching path of the switch is necessary. The guide devices for the optical waveguides consist of guide grooves into which the optical waveguide ends can be inserted without great difficulty.
Dadurch, daß die ebene Platte nach dem Einbringen der ersten Nuten kraftfrei durchtrennt wird, bleibt die Ausrichtung der Nuten über die Koppelstelle hinweg präzise in bezug auf Winkelabweichungen, radiale und axiale Abweichungen der eingelegten Lichtwellenleiter zueinander.Because the flat plate is severed without force after the introduction of the first grooves, the orientation of the grooves remains precise with respect to the coupling point Angular deviations, radial and axial deviations of the inserted optical fibers from one another.
Das erfindungsgemäße Verfahren kann dadurch ausgestaltet werden, daß das Einbringen der Nuten in die Platte durch ein fotolithographisches Verfahren oder durch Laserablation geschieht.The method according to the invention can be designed in such a way that the grooves are introduced into the plate by a photolithographic method or by laser ablation.
Der Vorteil dieser Ausgestaltung der Erfindung liegt darin, daß die Nuten mit der erforderlichen Genauigkeit in die Platte eingebracht werden können, ohne daß eine Kraft auf die Platte wirkt, die die verschiedenen Teile des Schalters dejustieren könnte. Außerdem läßt sich das Verfahren insbesondere mit Hilfe der Laserablation sehr schnell durchführen. Die Nutenbreite kann über die Fokussierung des Ablationslasers oder Einstellung der Vergrößerung des Projektionsgerätes bei dem Fotolithographie¬ verfahren eingestellt werden.The advantage of this embodiment of the invention is that the grooves can be made with the required accuracy in the plate without a force acting on the plate that could misalign the various parts of the switch. In addition, the method can be carried out very quickly, in particular with the aid of laser ablation. The groove width can be adjusted by focusing the ablation laser or adjusting the magnification of the projection device in the photolithography process.
Das erfindungsgemäße Verfahren kann weiterhin dadurch ausgestaltet werden, daß bei dem Verfahrensschritt, bei dem die zweiten Nuten in die Platte eingebracht werden, die Vorrichtung zum Einbringen der Nuten durch Reflexioπsmessungen an den ersten Nuten mit Hilfe eines Lasers mit der erforderlichen Genauigkeit positioniert wird.The method according to the invention can furthermore be designed in such a way that in the method step in which the second grooves are introduced into the plate, the device for introducing the grooves is positioned by reflection measurements on the first grooves with the aid of a laser with the required accuracy.
Der Vorteil dieser Ausgestaltung der Erfindung liegt darin, daß der Laser für die Laserablation oder die Fotolithographiemaske mit der erforderlichen Genauigkeit positioniert werden können und daß die Positionierung automatisch erfolgen kann.The advantage of this embodiment of the invention is that the laser for laser ablation or the photolithography mask can be positioned with the required accuracy and that the positioning can take place automatically.
Weiterhin kann die Erfindung dadurch ausgestaltet werden, daß die Platte an der Koppelstelle durch Laserablation durchtrennt wird.Furthermore, the invention can be designed in that the plate is severed at the coupling point by laser ablation.
Diese Ausgestaltung des Verfahrens hat den Vorteil, daß die Durchtreπnung der Platte mit hoher Präzision, ohne größere Wärmeentwicklung und mit hoher Geschwindigkeit durchgeführt werden kann.This embodiment of the method has the advantage that the plate can be penetrated with high precision, without greater Heat generation and can be carried out at high speed.
Die Erfindung wird anhand eines Ausführungsbeispiels in einer Zeichnung gezeigt und nachfolgend erläutert.The invention is shown using an exemplary embodiment in a drawing and explained below.
Dabei zeigt in vergrößertem MaßstabIt shows on an enlarged scale
Fig. 1 eine Seitenansicht der ebenen Platte innerhalb des Schalters, Fig. 2 eine Draufsicht auf die ebene Platte,1 is a side view of the flat plate within the switch, Fig. 2 is a plan view of the flat plate,
Fig. 3 eine Ansicht der ebenen Platte nach ihrer Durchtrennung an der Koppelstelle, Fig. 4 eine Ansicht der ebenen Platte nach Einbringen aller Nuten.3 shows a view of the flat plate after it has been severed at the coupling point, FIG. 4 shows a view of the flat plate after all the grooves have been introduced.
Fig. 1 zeigt eine Teilansicht des optischen Schalters mit den Trägerteilen 2 und 3, die gegeneinander in der Richtung senk¬ recht zur Zeichenebene bewegbar sind, sowie die ebene Platte 1, die mittels des aushärtbaren Kunststoffs 4 auf den beiden Teilen 2 und 3 so befestigt ist, daß der Kunststoff die Höhen¬ unterschiede zwischen den Trägerteilen ausgleicht.1 shows a partial view of the optical switch with the carrier parts 2 and 3, which can be moved relative to one another in the direction perpendicular to the plane of the drawing, and the flat plate 1, which is fastened on the two parts 2 and 3 by means of the hardenable plastic 4 is that the plastic compensates for the height differences between the carrier parts.
Fig. 2 zeigt die ebene Platte 1 von oben, nachdem die durchgehende Nuten 5 und 6 durch Laserablation oder Fotolithographie in die Platte eingebracht worden sind. Die Platte wird an der Kopopel- stelle 7 senkrecht zu den Nuten kraftfrei, z. B. durch Laserablati durchtrennt. Dabei werden die Nut 5 in zwei Teilnuten 5', 51 ' und die Nut 6 in zwei Teilnuten 6', 6' * aufgetrennt.2 shows the flat plate 1 from above after the continuous grooves 5 and 6 have been introduced into the plate by laser ablation or photolithography. The plate is at the coupling point 7 perpendicular to the grooves without force, for. B. severed by laser ablation. The groove 5 is split into two partial grooves 5 ', 5 1 ' and the groove 6 into two partial grooves 6 ', 6' *.
Danach (Fig. 3) wird der Schalter in eine neue Schaltposition gebracht, was dazu führt, daß die Nuten 51, 51 1 und 6', 6' 1 in den beiden nun gegeneinander verschobenen Teilen der ebenen Platte 1 nicht mehr miteinander fluchten.Then (Fig. 3) the switch is brought into a new switching position, which leads to the fact that the grooves 5 1 , 5 1 1 and 6 ', 6' 1 in the two parts of the flat plate 1 now shifted against each other no longer in alignment .
Die Nut 5' in dem ersten Teil der ebenen Platte 1 wird durch die Nut δ in den zweiten Teil der Platte verlängert (Fig. 4). Die Nut 51 ' in dem zweiten Teil der Platte wird durch die Nut 9 in dem ersten Teil der Platte verlängert. Die Nut 6' in dem ersten Teil der Platte wird durch die Nut 11 in dem zweiten Teil der Platte verlängert. Die Nut 61 1 in dem zweiten Teil der Platte wird durch die Nut 10 in dem ersten Teil der Platte verlängert. Zu diesem Zweck wird jeweils an der bereits vorhandenen Nut 5', 51 1, 6', 611 die Vorrichtung zum Einbringen der weiteren Nuten so ausgerichtet, daß die jeweils neu eingebrachte Nut mit der zu verlängernden Nut genau fluchtet. Dazu wird die Vorrichtung zum Einbringen der Nut, beispiels¬ weise der Ablationslaser oder die Fotolithographiemaske, jeweils mit Hilfe einer Reflexionsmessung an der jeweils bereits vorhandenen, zu verlängernden Nut präzise ausgerichtet. Die Breite der einzubringenden Nuten ist jeweils durch die Fokussierung des Ablationslasers bzw. durch die Vergrößerung des Projektionsapparates für die Lithographiemaske einzu¬ stellen. Nach dem Einbringen sämtlicher Nuten in die Platte 1 kann durch Betätigen des Schalters beispielsweise die Nut 51 mit der'Nut 8 oder der Nut 51 'fluchtend ausgerichtet werden. Die Nut 5' ' kann mit den Nuten 5' und 9 fluchtend ausgerichtet werden. Ähnliches gilt für die Nuten 6' , 61 ', 10 und 11. In jede der Nuten wird ein Lichtwellenleiterende eingelegt und dort durch Kleben oder Klemmen befestigt. Dadurch, daß die verschiedenen Nuten in den unterschiedlichen Schaltstellungen des Schalters miteinander fluchten, werden auch die jeweils eingelegten Lichtwellenleiterenden so genau fluchtend miteinander ausgerichtet, daß eine gute Kopplung zwischen den jeweils fluchtenden Lichtwellenleitern geschaffen wird. Die Transmissionsverluste für das Licht, das von einem Lichtwellen- leiter zum anderen übergekoppelt wird, sind durch die gute Winkelausrichtung und durch die geringen radialen und axialen Fehler beim Ausrichten der Lichtwellenleiter sehr gering. The groove 5 'in the first part of the flat plate 1 is extended by the groove δ in the second part of the plate (Fig. 4). The groove 5 1 'in the second part of the plate is extended by the groove 9 in the first part of the plate. The groove 6 'in the first part of the plate is extended by the groove 11 in the second part of the plate. The groove 6 1 1 in the second part of the plate is extended by the groove 10 in the first part of the plate. For this purpose, the device for introducing the further grooves is aligned in each case on the already existing groove 5 ', 5 1 1 , 6', 6 11 such that the newly introduced groove is exactly aligned with the groove to be extended. For this purpose, the device for introducing the groove, for example the ablation laser or the photolithography mask, is precisely aligned with the aid of a reflection measurement on the groove that is already present and is to be lengthened. The width of the grooves to be introduced can be set in each case by focusing the ablation laser or by enlarging the projection apparatus for the lithography mask. After the introduction of all the grooves in the plate 1, the groove 5 with the 1 'or groove 8 of the groove 5 1' can, by operating the switch, for example, be aligned. The groove 5 '' can be aligned with the grooves 5 'and 9. The same applies to the grooves 6 ', 6 1 ', 10 and 11. An optical fiber end is inserted into each of the grooves and fastened there by gluing or clamping. Characterized in that the different grooves in the different switch positions of the switch are aligned with each other, the respectively inserted fiber optic ends are aligned so precisely that a good coupling between the respective aligned optical fibers is created. The transmission losses for the light that is coupled from one optical fiber to the other are very low due to the good angular alignment and the small radial and axial errors in aligning the optical fibers.

Claims

Patentansprüche Claims
1. Verfahren zum Herstellen von Führungseinrichtungen für Lichtwellenleiterenden in einem optischen Schalter, d a d u r c h g e k e n n z e i c h n e t ,1. Method for producing guide devices for optical waveguide ends in an optical switch, d a d u r c h g e k e n n z e i c h n e t,
-daß erstens der Schalter in einen definierten Schaltzustand gebracht wird, -daß zweitens innerhalb des Schalters eine ebene Platte (1) über das feste und das bewegliche Teil (2, 3) des Schalters geklebt wird,-that firstly the switch is brought into a defined switching state -that secondly a flat plate (1) is glued inside the switch over the fixed and the movable part (2, 3) of the switch,
-daß drittens eine erste Nut (5, 6) oder eine erste Gruppe von nebeneinanderliegenden Nuten (5, 6) in die Platte so einge¬ bracht wird, daß die Nuten (5, 6) die vorgesehene Koppelstelle ( überbrücken, -daß viertens die Platte (1) vor oder direkt nach dem Einbringen ersten Nut(en) (5, 6) an der Koppelstelle (7) kraftfrei senkrecht zu der Nut (den Nuten) (5, 6) durchtrennt wird, -daß fünftens durch Betätigung des Schalters die beiden Teile der Platte (1) in eine zweite Schaltposition zueinander gebracht werden,- that thirdly a first groove (5, 6) or a first group of adjacent grooves (5, 6) is introduced into the plate in such a way that the grooves (5, 6) bridge the intended coupling point, --that fourthly the Plate (1) before or immediately after the introduction of the first groove (s) (5, 6) at the coupling point (7) is cut without force perpendicular to the groove (s) (5, 6), - fifthly by actuating the switch the two parts of the plate (1) are brought into a second switching position,
-daß sechstens mindestens eine der ersten Nuten (5, 6) über die Koppelstelle (7) hinaus durch eine mit der ersten Nut in der zweiten Schaltstellung genau fluchtende zweite Nut (8, 9, 10, 11 in dem jeweils anderen Teil der Platte (1) verlängert wird.- that sixthly at least one of the first grooves (5, 6) beyond the coupling point (7) through a second groove (8, 9, 10, 11 in the other part of the plate (8, 9, 10, 11) exactly aligned with the first groove in the second switching position 1) is extended.
2. Verfahren nach Anspruch 1, d a d u r c h g e k e n n ¬ z e i c h n e t , daß das Einbringen der Nuten in die Platte (1 durch ein fotolithographisches Verfahren oder durch Laser- ablation geschieht.2. The method of claim 1, d a d u r c h g e k e n n ¬ z e i c h n e t that the grooves are introduced into the plate (1 by a photolithographic method or by laser ablation.
3. Verfahren nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , daß bei dem Verfahrensschritt, bei dem die zweiten Nuten (8, 9, 10, 11) in die Platte (1) einge- bracht werden, die Vorrichtung zum Einbringen der Nuten (5, 6) durch Reflexionsmessungen an den ersten Nuten mit Hilfe eines Lasers mit der erforderlichen Genauigkeit positioniert wird.3. The method according to claim 1 or 2, characterized in that in the method step in which the second grooves (8, 9, 10, 11) are introduced into the plate (1), the device for introducing the grooves (5, 6) by means of reflection measurements on the first grooves of a laser is positioned with the required accuracy.
4. Verfahren nach Anspruch 1 oder einem der folgenden, d a d u r c h g e k e n n z e i c h n e t , daß die Platte (1) an der Koppelstelle (7) durch Laserablation durchtrennt wird. 4. The method according to claim 1 or one of the following, that the plate (1) is severed at the coupling point (7) by laser ablation.
PCT/DE1989/000603 1988-10-18 1989-09-20 A method of manufacturing an optical switch WO1990004804A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3835923.5 1988-10-18
DE19883835923 DE3835923A1 (en) 1988-10-18 1988-10-18 METHOD FOR PRODUCING AN OPTICAL SWITCH

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WO1990004804A1 true WO1990004804A1 (en) 1990-05-03

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PCT/DE1989/000603 WO1990004804A1 (en) 1988-10-18 1989-09-20 A method of manufacturing an optical switch

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WO (1) WO1990004804A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991016651A1 (en) * 1990-04-12 1991-10-31 Siemens Aktiengesellschaft Process for assembling a beam wave guide switch
EP0556937A1 (en) * 1992-02-13 1993-08-25 Siemens Aktiengesellschaft Optical switch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048867A1 (en) * 1980-09-30 1982-04-07 Siemens Aktiengesellschaft Bridge switch device for an optical fibre
EP0098816A2 (en) * 1982-07-01 1984-01-18 Telefonaktiebolaget L M Ericsson Method of manufacturing a fixed and a movable part provided with optical fibres
GB2186707A (en) * 1986-02-17 1987-08-19 Gen Electric Plc Optical fibre switch with laser- machined guide groove
US4699457A (en) * 1985-09-03 1987-10-13 Optelecom Incorporated Optical fiber switch and method of making same
JPS62240918A (en) * 1986-04-11 1987-10-21 Sumitomo Electric Ind Ltd Manufacture of optical fiber switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048867A1 (en) * 1980-09-30 1982-04-07 Siemens Aktiengesellschaft Bridge switch device for an optical fibre
EP0098816A2 (en) * 1982-07-01 1984-01-18 Telefonaktiebolaget L M Ericsson Method of manufacturing a fixed and a movable part provided with optical fibres
US4699457A (en) * 1985-09-03 1987-10-13 Optelecom Incorporated Optical fiber switch and method of making same
GB2186707A (en) * 1986-02-17 1987-08-19 Gen Electric Plc Optical fibre switch with laser- machined guide groove
JPS62240918A (en) * 1986-04-11 1987-10-21 Sumitomo Electric Ind Ltd Manufacture of optical fiber switch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 12, Nr. 112 (P-687)(2959), 9. April 1988 & JP-A-62240918 (Sumitomo Electric Ind. Ltd), 21. Oktober 1987 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991016651A1 (en) * 1990-04-12 1991-10-31 Siemens Aktiengesellschaft Process for assembling a beam wave guide switch
US5353361A (en) * 1990-04-12 1994-10-04 Siemens Aktiengesellschaft Method for assembling a light wave guide switch
EP0556937A1 (en) * 1992-02-13 1993-08-25 Siemens Aktiengesellschaft Optical switch

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