WO2011057812A2 - Ensemble optique - Google Patents

Ensemble optique Download PDF

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Publication number
WO2011057812A2
WO2011057812A2 PCT/EP2010/006931 EP2010006931W WO2011057812A2 WO 2011057812 A2 WO2011057812 A2 WO 2011057812A2 EP 2010006931 W EP2010006931 W EP 2010006931W WO 2011057812 A2 WO2011057812 A2 WO 2011057812A2
Authority
WO
WIPO (PCT)
Prior art keywords
optical
optical assembly
deflection
component
fiber
Prior art date
Application number
PCT/EP2010/006931
Other languages
German (de)
English (en)
Other versions
WO2011057812A3 (fr
Inventor
Ludwig Ross
Maria Kufner
Stefan Kufner
Wolfgan Foss
Marco Bock
Frank BÄTZ
Original Assignee
Leoni Kabel Holding Gmbh
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 Leoni Kabel Holding Gmbh filed Critical Leoni Kabel Holding Gmbh
Publication of WO2011057812A2 publication Critical patent/WO2011057812A2/fr
Publication of WO2011057812A3 publication Critical patent/WO2011057812A3/fr

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
    • G02B6/26—Optical coupling means
    • G02B6/30—Optical coupling means for use between fibre and thin-film device
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/125—Bends, branchings or intersections

Definitions

  • the invention relates to an optical assembly with an optical component.
  • the optical component is in particular a passive, preferably planar component, which is generally also referred to as an optical waveguide chip.
  • Such optical components usually have a planar design and comprise a carrier substrate, preferably glass, in which optical waveguide tracks are integrated by suitable processing.
  • a conductor pattern is produced by an ion diffusion process. The patterning of the conductor pattern preferably takes place on a lithographic path. Other deposition techniques such. B. CVD (chemical vapor deposit- on) can also be used.
  • optical component for example
  • splitter or splitter where an input is split across multiple outputs.
  • Such a splitter is used to distribute an optical signal to multiple fiber strands / consumers.
  • the input and the output are provided on opposite end faces of the optical component and are coupled there via connection carriers, so-called fiber arrays, to an input fiber or to output fibers.
  • connection carriers so-called fiber arrays
  • the invention has for its object to provide an improved optical assembly with such an optical component.
  • the object is achieved by an optical assembly with the features of claim 1.
  • an optical deflecting element on an edge side of the optical component, so that at this edge side a deflection is connected to a peripheral deflection input via the deflecting element. It is therefore on this edge side on the
  • connection carrier fiber array
  • all optical fibers are therefore coupled to only one side of the optical device. This allows a compact design and easy installation.
  • the optical signal to be distributed is therefore fed in operation on the same front side via a signal input, on which the consumer outputs are arranged.
  • a passive optical component is preferably provided as deflecting element, which in particular has no optical fiber.
  • the deflecting element is designed in the manner of a lens, preferably a collimating lens and in particular as a gradient lens.
  • the inner side of the deflecting element opposite the edge side is expediently mirrored, so that therefore a signal coupled out into the deflecting element via a peripheral deflecting output is reflected on the mirrored inner side and coupled back into the peripheral deflecting input.
  • a signal input of an optical signal is provided on the first end side, which is connected via a loop-through with the deflection on the opposite edge side.
  • a loop-through with the deflection on the opposite edge side.
  • the optical component is designed as a splitter, in which the edge-side deflection input branches off on a plurality of front-end consumer outputs.
  • 1xN splitters are primarily described which have a signal input and N consumer outputs.
  • 2xN splitters or, in general, MxN splitters are also common, which therefore have a total of M signal inputs and N consumer outputs.
  • Such splinters preferably open on the deflection side all in a common deflection channel.
  • the multiple signal inputs are routed via a branched loop-through conductor to the common deflection output.
  • the fibers are in the connection carrier, in particular in a standard pitch, and aligned with the consumer outputs and the signal input of the optical device.
  • this preferably has notches (V notches) in which the fibers are embedded.
  • the connection carrier is for example made of glass or plastic and in particular divided into two halves, wherein one half has the notches with the incident fibers. A remaining space in the notches is filled in particular with an adhesive.
  • the optical assembly has an integrated plug, in particular a multi-fiber plug, so that a fiber bundle can be connected / coupled in a simple manner with the aid of a corresponding plug via a plug connection.
  • Fig. 2 is a comparable to FIG. 1 representation of an optical assembly in a second embodiment variant with integrated standardized multi-fiber connector
  • FIG 3 shows a simplified illustration of a gradient lens (GRIN lens) with a typical beam path as deflecting element.
  • GRIN lens gradient lens
  • An optical assembly 2 according to FIG. 1 in each case comprises an optical component 4, which in the exemplary embodiment is in the form of a splitter, and a fiber bundle with a plurality of optical fibers 7 coupled to only one side of the optical component 4, in particular with the aid of a connection carrier 6 arranged on the opposite end face of the optical component 4, a deflecting element 8.
  • the optical component 4 is also generally referred to as a planar optical waveguide chip.
  • connection carrier 6 is coupled to a first end face 9A and the deflection element 8 is coupled to a further edge side, in the embodiment the opposite, second end face 9B.
  • the optical component 4 generally has a conductor pattern 10.
  • the conductor pattern 10 in this case comprises a loop-through conductor 12 which extends from a signal input 14 on the first end face 9A to a deflection output 16 on the opposite second end face 9B.
  • a plurality of consumer or subscriber exits 18 are additionally formed and on the second end face 9B, a further deflection input 20 is provided. While in the exemplary embodiment the loop-through conductor 12 extends without branching, the conductor track pattern ter 10 starting from the deflection input 20 to the consumer outputs 18 a multi-branched structure, wherein the conductor in each case at a branch point Y-shaped divides.
  • division is understood to mean that the power or the intensity of the optical signal is preferably distributed uniformly among the consumer outputs 18.
  • the deflection element 8 is generally a fiber-free and in particular monolithic component, which ensures by its construction that the signal S is reflected back in its interior, in particular by reflection again exactly in the deflection input 20.
  • the deflection element 8 preferably has a reflection surface 21 or mirror, which is formed on the side facing away from the end face 9 B of the deflection element 8.
  • deflection element 8 for example, an optical prism or a combination of a plurality of optical elements, such as a plurality of lenses, Kollimationslinsen and prisms is used. According to the preferred embodiment, however, a per se known GRIN lens (gradient lens) is preferably used as deflecting element 8. This has the advantage that no further optical elements needed for the deflection and also used. In addition, it is very easy to manufacture and couple with little effort to the optical component 4.
  • GRIN lens gradient lens
  • a signal E arriving at an entry point 23A at a distance from an optical axis 22 is widened within the gradient lens 8 and guided to the opposite reflection surface 21 where it is reflected and thrown back to the input end face. This is done again a collimation of the light, so that at an exit point 23 B an output side signal A is provided.
  • the entry point 23A of the input-side signal E and the exit point 23B of the output-side signal A are arranged in mirror image with respect to the optical axis 22. For the adjustment of the deflection element 8 on the optical component 4, it is therefore only necessary to ensure that the optical axis 22 is aligned with an imaginary center line between the deflection output 16 and the deflection input 20.
  • the individual elements 4, 6, 8 of the optical assembly 2 are arranged within a common housing 26 and thus form a prefabricated structural unit.
  • the optical assembly 2 additionally has a multifiber plug 28, which is coupled directly to the connection carrier 6.
  • the multi-fiber plug 28 may also be part of the connection carrier 6.
  • a fiber bundle provided with a corresponding plug element can be connected to the multi-fiber plug 28 via a simple plug connection.
  • a plurality of optical components 4 are first formed by structuring and forming a conductor pattern 10 on a common carrier substrate (wafer). Subsequently, on the first end face 9A, the parallel and simultaneous coupling of the optical fibers 7 to all the optical components 4 arranged on the wafer takes place via a common connection carrier 6.
  • the individual optical assemblies 2 formed thereby are separated from one another by a separation process.
  • the deflection elements 8 are also integrated together in a carrier element, so that only one Alignment and a Ankoppelvorgang for all deflecting elements 8 is required.
  • optical component 4 is designed such that on one side only, namely the first end face 9A, the optical signal S is switched on and off during operation. All connections can therefore be made on one side only. On the opposite end face 9B, only a release and re-coupling takes place in the optical component 4. All inputs and outputs of the optical component 4 for connection to a fiber bundle are therefore on only one side.
  • This embodiment with the deflecting element 8 allows a very compact design.
  • the dimension of the optical component 4 is only slightly increased by the deflecting element 8.
  • a GRIN lens suitable for such applications has a diameter of a few millimeters, for example less than 3 mm and a length of less than 5 mm.
  • a deflecting element 8 is more compact than conventional fiber couplings.
  • the deflection element 8 is based on the principle of a collimation lens, which is mirrored on one side and fixed directly on the second end face 9B of the optical component 4.
  • the pitch of the fibers within the connection carrier 6 and in particular within the multi-fiber plug 28 corresponds to standard grid dimensions in order to be able to use conventional optical connector elements (ferrules) without further ado.
  • the pitch is typically about 125 ⁇ (more precisely: 127 pm) or a multiple thereof.
  • Such optical assemblies are commonly used as branching components in fiber optic (data) transmission systems.
  • This is a planar optical assembly 2, in which the optical component 4 is designed as a planar, flat component.
  • These branching components or the fiber optic transmission systems are increasingly replacing the previously wire-based data lines and will therefore be needed in large quantities in the future.
  • the location of these branching components is getting closer and closer to the end user.
  • These branching components are used near the end user, similar to power distribution boxes. Therefore, a cost-effective and easy to install design of these branching components is required. Also, the lowest possible space requirement is generally desired. All of these requirements are met by the optical assembly described herein.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'invention vise à faciliter le montage d'un ensemble optique (2) conçu notamment comme séparateur pour un système de transmission à fibres optiques. A cet effet, les fibres sont couplées à l'ensemble optique (2) sur une seule face. L'ensemble optique (2) de l'invention comprend donc un élément optique (4), notamment un séparateur, sur l'une des faces frontales duquel s'effectue le couplage des fibres, notamment au moyen d'un support de connexion (6), sur la face frontale (9B) opposée étant prévu seulement un élément de renvoi (8) conçu notamment comme lentille à gradient. En outre, une fiche à plusieurs fibres (28) est de préférence intégrée dans l'ensemble optique (2) pour faciliter le montage.
PCT/EP2010/006931 2009-11-16 2010-11-15 Ensemble optique WO2011057812A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009053054 2009-11-16
DE102009053054.1 2009-11-16

Publications (2)

Publication Number Publication Date
WO2011057812A2 true WO2011057812A2 (fr) 2011-05-19
WO2011057812A3 WO2011057812A3 (fr) 2011-07-28

Family

ID=43532727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/006931 WO2011057812A2 (fr) 2009-11-16 2010-11-15 Ensemble optique

Country Status (1)

Country Link
WO (1) WO2011057812A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015018550A1 (fr) 2013-08-06 2015-02-12 Leoni Kabel Holding Gmbh Coupleur optique pour fibre multicœurs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146196A3 (fr) * 1983-12-17 1987-01-21 Philips Patentverwaltung GmbH Elément constitutif de dispositif d'optique intégré
CA2217688C (fr) * 1997-10-07 2006-12-05 Gary Duck Transmission de la lumidre dans un dispositif monolithique guide d'ondes
CA2267398A1 (fr) * 1998-04-01 1999-10-01 Gary Stephen Duck Dispositif optique hybride de guidage d'ondes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015018550A1 (fr) 2013-08-06 2015-02-12 Leoni Kabel Holding Gmbh Coupleur optique pour fibre multicœurs
US9753221B2 (en) 2013-08-06 2017-09-05 Leoni Kabel Holding Gmbh Optical coupler for a multicore fiber

Also Published As

Publication number Publication date
WO2011057812A3 (fr) 2011-07-28

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