WO2012017262A1 - Connecteur optoélectronique - Google Patents

Connecteur optoélectronique Download PDF

Info

Publication number
WO2012017262A1
WO2012017262A1 PCT/IB2010/002579 IB2010002579W WO2012017262A1 WO 2012017262 A1 WO2012017262 A1 WO 2012017262A1 IB 2010002579 W IB2010002579 W IB 2010002579W WO 2012017262 A1 WO2012017262 A1 WO 2012017262A1
Authority
WO
WIPO (PCT)
Prior art keywords
optoelectronic
electrical
optical
circuit board
interface
Prior art date
Application number
PCT/IB2010/002579
Other languages
English (en)
Inventor
Gnitabouré YABRE
Yves Stricot
Original Assignee
Fci
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 Fci filed Critical Fci
Priority to PCT/IB2010/002579 priority Critical patent/WO2012017262A1/fr
Publication of WO2012017262A1 publication Critical patent/WO2012017262A1/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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4246—Bidirectionally operating package structures
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device

Definitions

  • Optoelectronic components are known to be components which transform light from/to electricity.
  • the LASER is an example of a light- emitting optoelectronic component.
  • a photo-detector or photo-diode is an example of a light-receiving optoelectronic component.
  • Active optical cables are used to connect electrical devices to optical devices.
  • Such cables comprise an optical fibre ending in a housing which houses such optoelectronic components, which are themselves electrically connected to a board.
  • Using such active optical cables enables to provide a board with electrical interfaces, and to provide the optoelectronic components in the cable.
  • the overall cost of the system is lowered, since only the required amount of cables is used, and the idle interfaces do not comprise any expensive component. Further, the optoelectronic components provided in a cable housing can more easily be protected from any ingress of material .
  • Such optical cables are highly technological objects, since they must integrate in a very small space such critical components, and must ensure that both the electrical coupling to the electrical device and the optical coupling to the optical device are satisfactory.
  • the PCB further carries an optical coupling device.
  • the first optical interface comprises a plurality of light-transmission regions, arranged along a plurality of rows and a plurality of columns. Each light- transmission region is associated to a respective opto- electronic component.
  • Fig. 1 is a perspective view of an optoelectronic connector
  • Fig. 4 is a schematic partial perspective view inside the connector of Fig. 1,
  • Fig. 5 is a view similar to Fig. 2 of a second embodiment
  • Fig. 6 is a view similar to Fig. 2 of a third embodiment
  • the electrical interface 2 comprises two parallel protrusions 5a, 5b extending along the width Y of the connector and spaced apart from one another along the height Z of the connector.
  • the two protrusions are for example identical and symmetrical with respect to an X-Y plane.
  • the protrusion 5a comprises a top face 6 which extends parallel to the X-Y plane.
  • a plurality of electrical tracks 7a, 7i are borne by the top face 6.
  • the protrusion 5a comprises twelve differential pairs of tracks, i.e. 24 such tracks. At the electrical interface, these tracks extend parallel to one another along the direction X, toward the inside of the connector 1.
  • such tracks are electrical tracks provided on a top surface 8a of a printed circuit board 8 (see Fig. 4) .
  • the electrical interface is provided as slots rather than protrusions.
  • the second printed circuit board 9 has a first portion 9i corresponding to the electrical interface which has been described above.
  • the second printed circuit board further comprises a second portion 9 2 which extends beyond the first portion 9i along the X direction. This portion is a connection portion to the first circuit board, as will be described in more details below.
  • the first circuit board 8 also comprises a first portion 8i corresponding to the electrical interface, and as second portion 8 2 , which is an electrical connection portion to the second printed circuit board 9.
  • the first printed circuit board 8 further comprises a third portion 8 3 which extends beyond the first and second portions 8 1 , 8 2 along the direction X, and comprises an optical engine, or optical sub-assembly (not shown on Fig. 4), and will be described in more details below in relation to Fig. 2.
  • the second printed circuit board does not comprise any such third portion comprising an optical engine.
  • the first printed circuit board 8 carries on the left-hand side, the i electrical tracks originating from the first protrusion 5a. On the right hand side, it carries n electrical tracks. Of those, i are continuous from the i electrical tracks originating from the first protrusion 5a, and the other n-i tracks are electrically connected to the n-i tracks carried by the second printed circuit board 9 by way of a suitable electrical connector 10.
  • Such an electrical connector is adapted to electrically connect together electrical tracks from two different printed circuit boards.
  • such an electrical connector 10 comprises a dielectric housing 11 which receives electrical pins 12, which extend from a first end 12a to a second end 12b.
  • the first end 12a is an electrical contact with a track of the second electrical circuit board.
  • the second end 12b is in electrical contact with an electrical track 7 n+ i , 7 2n -i of the first printed circuit board 8.
  • the electrical contact of the pins 12 to the tracks 7 n+ i 7 2n -i of the first printed circuit board 8 will be done through its substrate. This also applies to the electrical contact of the pins 12 to the tracks 7 i+ i , 7 n of the second printed circuit board.
  • n in the present example, 48 electrical tracks extend, i of them being directly electrically connected to the first protrusion 5a, and n-i of them being electrically connected to the second protrusion 5b through the electrical connector 10.
  • Fig. 2 shows the optical engine carried in the third portion 8 3 of the first printed circuit board.
  • the first face 8 a of the printed circuit board 8 carries a number of components.
  • This printed circuit board carries active optoelectronic devices 13, such as a row of light- emitting optoelectronic devices 13i. This row, in the present example extends along the direction Y, so that only one such device is visible on Fig. 2. Please refer to the top view of Fig. 3 to see the whole row. Examples of such light-emitting optoelectronic devices include vertical- cavity surface emitting lasers (VCSELs) .
  • the printed circuit board 8 further comprises electronic control devices 14, such as electronic devices which control the VCSELs 13i. The electronic control devices are electronically connected to the VCSELs 13i by electrical tracks provided on the first face 8 a .
  • the printed circuit board 8 further carries an optical coupling device 15 which is adapted to optically couple light emitted from/directed to the optoelectronic components 13i, 13 2 to/from a mating optical component 16.
  • an optical component 16 comprises for example a mechanical-transfer ferrule 17 which receives optical fibres 29 in precisely defined relative locations. Right of the ferrule, the optical fibres are arranged together as a cable 18 forming the optical interface 3 of the connector 1.
  • the optical coupling device 15 is for example a unitary integrally moulded part. It comprises positioning feet 19 which are used to precisely define the location of the coupling device 15 with respect to the optoelectronic components 13, both in the X-Y plane and their height with respect to them along the axis Z.
  • the optical coupling device 15 comprises a first optical interface 20 optically coupled to the optoelectronic components 13.
  • the optical coupling device further comprises a second interface 21 optically coupled to the ends of the optical fibres held in the ferrule 17.
  • Each optical interface 20 and 21 comprises optical transmission regions 27, 28, respectively, arranged in rows and columns, and each associated to a corresponding optoelectronic component 13 or fibre.
  • each interface of the optical coupling device comprises light- transmission regions arranged along a plurality of rows and a plurality of columns.
  • each transmission region comprises a lens 22 or other suitable light-beam forming device, to enhance the optical coupling between the optical coupling device 15 and the respective mating optical component.
  • the system has an electrical interface which is compatible with other systems, which also have two printed circuit boards 8, 9, but have one optical engine provided per circuit board. Thus, it is possible to plug the present active cable to a complementary older socket.
  • control components 14, 114 is provided in the first portion 8i of the first printed circuit board 8. If necessary, these components are located elsewhere.
  • the reflective arrangement 23 of the optical coupling device comprises a single continuous mirror, rather than the two offset mirror portions 24, 25 of the first embodiment. Using one configuration or the other depends on the room available in the connector housing 4, and of the spacing of the optoelectronic components.
  • Fig. 8 now schematically shows an example of a complementary electrical mating connector 101, which has an electrical interface adapted to cooperate with the electrical interface of the optoelectronic active cable already described.
  • this connector 101 is attached to a not-shown printed circuit board of an electronic device.
  • Its electrical interface 102 for example comprises two slots 103 a , 103 b which are shaped to receive the protrusions 5 a , 5 b , respectively, of the cable housing. These slots thus comprise electrical tracks which will be in electrical communication with the tracks 7i-7 n of the housing.

Landscapes

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

Abstract

L'invention concerne un connecteur optoélectronique comprenant: un boîtier ; une carte de circuit imprimé (83) montée dans le boîtier et comportant des composants optoélectroniques (13) disposés le long de plusieurs lignes et de plusieurs colonnes, et un dispositif de couplage optique (15) possédant une première interface optique (20) couplée optiquement aux composants optoélectroniques et une seconde interface optique (21) afin d'échanger de la lumière avec un câble optique conjugué (3). La première interface optique comprend plusieurs régions de transmission de la lumière disposées le long de plusieurs rangées et de plusieurs colonnes, qui sont chacune associées à un composant optoélectronique respectif.
PCT/IB2010/002579 2010-08-06 2010-08-06 Connecteur optoélectronique WO2012017262A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2010/002579 WO2012017262A1 (fr) 2010-08-06 2010-08-06 Connecteur optoélectronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2010/002579 WO2012017262A1 (fr) 2010-08-06 2010-08-06 Connecteur optoélectronique

Publications (1)

Publication Number Publication Date
WO2012017262A1 true WO2012017262A1 (fr) 2012-02-09

Family

ID=43896798

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/002579 WO2012017262A1 (fr) 2010-08-06 2010-08-06 Connecteur optoélectronique

Country Status (1)

Country Link
WO (1) WO2012017262A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022174014A3 (fr) * 2021-02-12 2022-09-22 Senko Advanced Components, Inc. Connexions optoélectroniques à des cartes de circuits imprimés

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708743A (en) * 1993-02-23 1998-01-13 The Whitaker Corporation Light bending devices
US6364542B1 (en) * 2000-05-09 2002-04-02 National Semiconductor Corporation Device and method for providing a true semiconductor die to external fiber optic cable connection
US20030156327A1 (en) * 2002-02-15 2003-08-21 Yukari Terakawa Optical element and optical device using the same
WO2003071323A2 (fr) * 2002-02-21 2003-08-28 Fci Module d'interconnexion optique, et ferule comportant un tel module
EP1710606A1 (fr) * 2005-04-06 2006-10-11 Ibiden Co., Ltd. Prise électrique, ensemble formant module optique, et système de communication de données

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708743A (en) * 1993-02-23 1998-01-13 The Whitaker Corporation Light bending devices
US6364542B1 (en) * 2000-05-09 2002-04-02 National Semiconductor Corporation Device and method for providing a true semiconductor die to external fiber optic cable connection
US20030156327A1 (en) * 2002-02-15 2003-08-21 Yukari Terakawa Optical element and optical device using the same
WO2003071323A2 (fr) * 2002-02-21 2003-08-28 Fci Module d'interconnexion optique, et ferule comportant un tel module
EP1710606A1 (fr) * 2005-04-06 2006-10-11 Ibiden Co., Ltd. Prise électrique, ensemble formant module optique, et système de communication de données

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022174014A3 (fr) * 2021-02-12 2022-09-22 Senko Advanced Components, Inc. Connexions optoélectroniques à des cartes de circuits imprimés
US11934020B2 (en) 2021-02-12 2024-03-19 Senko Advanced Components, Inc. Optoelectronic connections to printed circuit boards

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