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WO1998034146A1 - Ensembles composants optiques - Google Patents

Ensembles composants optiques Download PDF

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Publication number
WO1998034146A1
WO1998034146A1 PCT/GB1998/000315 GB9800315W WO9834146A1 WO 1998034146 A1 WO1998034146 A1 WO 1998034146A1 GB 9800315 W GB9800315 W GB 9800315W WO 9834146 A1 WO9834146 A1 WO 9834146A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
optical
connector
package
assembly
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.)
Ceased
Application number
PCT/GB1998/000315
Other languages
English (en)
Inventor
Adrian Charles O'donnell
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.)
Integrated Optical Components Ltd
Original Assignee
Integrated Optical Components Ltd
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 Integrated Optical Components Ltd filed Critical Integrated Optical Components Ltd
Publication of WO1998034146A1 publication Critical patent/WO1998034146A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • G02B6/42—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
    • G02B6/421—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical component consisting of a short length of fibre, e.g. fibre stub
    • 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
    • G02B6/24—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
    • 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
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/4236—Fixing or mounting methods of the aligned elements
    • G02B6/4245—Mounting of the opto-electronic elements
    • 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
    • G02B6/4256—Details of housings
    • G02B6/426—Details of housings mounting, engaging or coupling of the package to a board, a frame or a panel
    • G02B6/4261—Packages with mounting structures to be pluggable or detachable, e.g. having latches or rails
    • 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
    • G02B6/4213—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being polarisation selective optical elements
    • 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
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/4236—Fixing or mounting methods of the aligned elements
    • G02B6/424—Mounting of the optical light guide
    • 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
    • G02B6/4251—Sealed packages
    • 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
    • G02B6/4256—Details of housings
    • G02B6/4262—Details of housings characterised by the shape of the housing
    • G02B6/4265—Details of housings characterised by the shape of the housing of the Butterfly or dual inline package [DIP] type

Definitions

  • This invention relates to an assembly of first and second optical components.
  • Optical communications systems are being used increasingly for telecommunications and data transfer systems. Though widely used at present for long-haul systems, optical fibres are now being used for computer, local area and metropolitan networks. There is thus pressure for the manufacture of assemblies used in these networks to be simplified, resulting in lower costs, and also for increased component packing densities on network cards. Though many of the components used in a network card assembly may be positioned and connected to the card by automatic machinery, the handling of optical fibres on an automatic basis has proved to be extremely difficult.
  • Many active and passive optical components comprise a device contained within an hermetically sealed package, with an optical fibre passing through the package wall and optically coupled to the device within the package.
  • the fibre is sealed to the package wall where the fibre passes therethrough and a suitable length of the fibre (a so-called “pigtail” ) extends away from the package, for connection as required for example to a corresponding pigtail of some other component, to a connector on the card which is to carry the component, or the like.
  • pigtail a suitable length of the fibre
  • the area of a card required to accommodate the fibre management techniques can reach 50% of the total card area.
  • the present invention aims at providing an assembly of first and second optical components which eliminates the need for a length of optical fibre possibly including a fibre connector and extending between separated components on a card, and yet allows low coupling losses on the transfer of an optical signal from the first component to the second component.
  • an assembly of first and second optical components comprising a package within which is contained an optical emitter device, one part of a two-part connector mounted on a wall portion of the package and having means defining an optical path therethrough which means is optically coupled to the emitter device, and the second component comprising a package within which is contained an optical processing device, the other part of the two-part connector mounted on a wall portion of the package and having means defining an optical path therethrough which means is optically coupled to the processing device, the first and second components being directly interengageable by connecting together the two parts of the connector, and the optical path defining means of the first component comprising a beam expander arranged to receive an optical signal from the emitter device, and a lens arranged to focus the expanded beam on to one end of an optical fibre stub positioned co-axially and substantially wholly within the one connector part, and the optical path defining means of the second component including a fibre held co-axially within the other connector part for aligned abutting
  • an assembly of first and second optical components comprising a package within which is contained an optical emitter device, one part of a two-part connector mounted on a wall portion of the package and having means defining an optical path therethrough which means is optically coupled to the emitter device
  • the second component comprising a package within which is contained an optical processing device, a further one part of a two-part connector mounted on a wall portion of the package and having means defining an optical path therethrough which means is optically coupled to the processing device
  • the first and second components being interengageable by means of an adapter defining two other connector parts and with which the two one connector parts may couple
  • the optical path defining means of the first component comprising a beam expander arranged to receive an optical signal from the emitter device and a lens arranged to focus the expanded beam on to one end of an optical fibre stub positioned co-axially and at least partially within the one connector part, and the optical path defining means of the second component including a fibre
  • the first optical component is directly connected to the second optical component by means of a two-part connector one part of which is arranged on the first component and the other part on the second component.
  • the first optical component is connected through an adapter to the second optical component by means of an adapter which connects to both of the two one parts of the connector, respectively on the two components.
  • an adapter is purely mechanical in function and does not itself participate in the optical coupling.
  • the difficulty of attempting to arrange a short fibre stub extending for example from a laser emitter in the first component into a connector part mounted on the package of the first component, and properly terminating that stub within the connector part so as to be capable of connecting to another connector part are overcome by separating the fibre stub from the laser emitter.
  • the fibre stub may properly be terminated away from the one connector part and then fitted into the connector part and the transfer of emitted light from the laser emitter to the inner end of the fibre stub is achieved by initially expanding the beam from the emitter and then focusing the expanded beam into the inner end of the fibre stub by means of a further lens.
  • the fibre stub may properly be positioned within the one connector part for precise abutting contact with the fibre provided within the other connector part of the second component.
  • the optical path defining means of the first component initially forms a substantially symmetrical collimated beam which beam passes through an aperture in the wall portion of the first component package.
  • the focusing lens which directs that beam into the fibre may be positioned outside the package, within the one connector part, or could be inside the package, with the fibre passing through the aperture and sealed to the package. Where the lens is outside the package, hermetic sealing may be perfected by providing the aperture with a window for example of a sapphire plate fitted thereto and through which the beam may pass.
  • the lens which diverts the beam into the fibre may comprise a conventional focusing lens, it is preferred for that lens to be spherical and mounted in the one connector part. In this case the expanded beam should pass through a central area of the lens.
  • the optical fibre stub of the first component is omitted and the focusing lens of the first component is arranged to direct the expanded beam on to the end face of the fibre of the second component, which end face is arranged to be at the focus of the lens when the first and second component are coupled together.
  • this invention further provides an assembly of first and second optical components, the first component comprising a package within which is contained an optical emitter device, one part of a two-part connector mounted on a wall portion of the package and having means defining an optical path therethrough which means is optically coupled to the emitter device, and the second component comprising a package within which is contained an optical processing device, the other part of the two-part connector mounted on a wall portion of the package and having means defining an optical path therethrough which means is optically coupled to the processing device, the first and second components being directly interengageable by connecting together the two parts of the connector, and the optical path defining means of the first component comprising a beam expander arranged to receive an optical signal from the emitter device and a lens arranged to focus the expanded beam, and the optical path defining means of the second component including an optical fibre held co-axially within the other connector part and leading to the processing device, whereby when connected the focusing lens of the first component focuses the expanded beam on to the end of the optical fibre held within the other connector part
  • this modified form may be further modified so that the second component carries a one connector part mechanically the same as the one connector part of the first component.
  • the first optical component is connected through an adapter to the second optical component which adapter connects to both the two one parts of the connector, respectively on the two components.
  • an adapter is purely mechanical in function and does not itself participate in the optical coupling.
  • the optical signal emitted from the device of the first component may pass through a lens train comprising a collimator and a circularising lens.
  • the optical signal therefrom usually has an elliptical cross-section and thus the circularising lens should be arranged to convert the optical signal so as to have a substantially circular cross-section.
  • the optical path defining means may also include other components such as a polarising element or an optical isolator, prior to the beam being directed into the focusing lens.
  • the optical path defining means of the second component includes a fibre which couples to the processing device within the package of the second component.
  • the fibre advantageously is arranged to relieve stress between the device and its package, caused for example by thermal mismatch therebetween.
  • the coupling of the fibre to a wave guide in the processing device may be entirely conventional and will not be discussed in further detail here.
  • the processing device of the second component may itself emit an optical signal.
  • the processing of the optical signal comprises modulation, the modulated signal being emitted from the second component.
  • the second component may be provided with a further connector part of a two part connector and having means defining an optical path therethrough which means is optically coupled to the signal emitting part of the processing device.
  • a series of components may simply be connected together by interengaging the connector parts of the various components. It is therefore possible to construct an assembly of components in a simple and compact manner, without using external optical fibres for the connections between the components. This increased connectivity simplifies the construction of an assembly and permits mechanical handling of the components.
  • Figure 1 is a plan view of a conventional optical component connection technique
  • Figure 2 is a side view on the arrangement of Figure 1 ;
  • Figure 3 is a plan view of the first and second components of this invention.
  • FIG 4 is a plan view of the first and second components of a modified form of this invention.
  • a first optical component 10 in the form of a package 11 containing a laser device (not shown).
  • the package is provided with a pair of mounting holes 12 allowing the package to be secured to the surface of a card (also not shown) and electrical connection leads 13 extend away from the package on both sides thereof, for connection to tracks provided on the card.
  • An optical fibre 14 passes through an opening in an end wall 16 of the package and is appropriately coupled to the laser device within the package to receive light emitted by the laser device.
  • the fibre is sealed to the package using conventional techniques well known to those skilled in the art and which form no part of the present invention; they will not therefore be described in further detail here.
  • the free end of the fibre 14 (which fibre is conventionally referred to as a "pigtail”) is fitted with an industry standard connector 17.
  • an optical modulator 18 having a package 19 provided with suitable mountings to permit the package to be secured to the surface of a card.
  • the modulator 18 has electrical connection leads 21 projecting therefrom, for connection to further tracks provided on the card.
  • the modulator has input and output optical fibres 22 and 23 passing through the package 19 and connected within the package to the modulator device therewithin. The fibres are sealed to the package and their free ends terminate in industry standard connectors 24 and 25 respectively, all three connectors 17, 24 and 25 being of the same design.
  • Connector 17 of the laser component 10 is optically coupled to connector 24 of the modulator 18 by means of an adapter 26 which connects optically and mechanically with both connectors.
  • connector 25 of the modulator is optically coupled to a network fibre 27 having a similar connector 28 on its free end, by means of a further adapter 29.
  • End wall 16 of the laser package 11 is provided with a male first part 30 of a two part connector, end wall 31 of the second component package 19 being provided with a female second part 32 of the connector.
  • the one and other parts 30 and 32 are formed complementarily so that they may be mated together in a closely interfitting manner.
  • Figure 3 shows diagrammatical ly a laser device 35 mounted within package 11 , but not the electrical connections thereto from the leads 13.
  • Light emitted from the laser device 35 is generally somewhat elliptical and passes along an optical path to the one connector part 30, there being a lens train 36 in that path initially to perform collimation of the beam and circularisation thereof.
  • the circularisation converts the elliptical output to allow a high coupling efficiency to be achieved to an optical fibre in the second optical component, as the circularisation increases the overlap integral between the laser output, transformed by the lenses, to the circularly symmetric mode profile of the fibre.
  • Collimation is performed by a conventional lens and the circularisation by one or more further lenses which may include a plano-convex lens which magnifies in only one plane or an aspheric lens which provides non-equal magnification in two planes mutually at right angles.
  • an expanded beam interface which allows the production of a beam diameter typically in the region of 100 ⁇ m to 1000 ⁇ m.
  • the expanded beam is then passed through additional elements 37, such as an optical isolator and/or a polariser.
  • the collimated beam passes through an aperture in the package wall 16 provided with a window for example of a sapphire plate (not shown) to allow hermetic sealing of the package.
  • a spherical lens 38 is located within the one connector part 30, immediately adjacent the window.
  • An optical fibre stub 39 has its two end portions carried by respective ferrules 40 and 41 , which ferrules are mounted co-axially within the one connector part 30. Prior to fitting the ferrules into the connector part, the end planes of the stub 39 are cut and polished in the usual way known in the art, in connection with termination techniques for optical fibres.
  • the lens 38, fibre stub 39 and ferrules 40 and 41 are arranged so that the lens focuses the received collimated expanded beam into the adjacent end of the fibre stub, and the other end of the fibre stub is at the end of the one connector part 30.
  • Mounted within the other part 32 of the connector on the second component is a fibre 44 held clamped within a ferrule 45 fitted co-axially within the other connector part 32.
  • the other end of the fibre 44 couples to a wave guide in the modulator device 18, in a manner well understood in the art, with the fibre curved through a shallow radius as shown in Figure 3.
  • the ferrule 45 seals to the other connector part 32 such that the package 19 may be hermetically sealed.
  • any thermal mismatch between the modulator device 18 and its package 19 may be accommodated by the fibre either straightening slightly or increasing its curvature slightly, as appropriate.
  • the optical modulator 18 together with its package 19 is provided with a further connector part in order to take the modulated optical signal out of the package and to some other component or fibre.
  • This further connector part is of the same construction as the other connector part 32 of the component.
  • the further connector part may be of the same design of the one connector part 30 of the first component 10. In this case, similar components may be connected serially so permitting the assembly of a number of components in a simple and rapid manner.
  • Figure 4 shows a modified form of the connector assembly of Figure 3. Again, like parts with those of Figure 3 are given like reference characters and will not be described again here.
  • the arrangement of Figure 4 does not employ a fibre stub 39 within the first connector part 30; rather, the light beam focused by lens 38 is focused directly on to the end of fibre 44 of the second component, held clamped within its ferrule 45 fitted co-axially within the other connector part 32.
  • the design of the other connector part 32 needs modification in order that the end of fibre 44 and its ferrule 45 may project sufficiently deeply into the one connector part 30 of the first component, as shown in Figure 4.
  • the arrangement of Figure 4 may employ a stop 46 within the one connector part 30, which stop may be changed to provide the correct focal length position when the second component is connected to the first component.
  • a stop may be selected having regard to variations in beam width, the focal length of the lens 38 and other manufacturing tolerances.
  • the lens 38 may be provided hermetically sealed within the laser package, and focusing the light through the window fitted to the aperture in the package 11.
  • the first component 10 has been described as a laser. This invention is not limited to the first component being a laser: the first component could be some other form of optical emitter, such as the downstream end of a modulator from which an optical signal issues.
  • the two connector parts may include interfitting lugs and recesses or other means whereby the two connector parts may be coupled only in a fixed and predefined rotational alignment. In this way, should the optical signal from the first component be polarised, the polarisation axes of the signal being passed through the connector will be maintained. It will thus be appreciated that the assemblies of Figures 3 and 4 allow polarisation maintaining, polarising or conventional singlemode fibres to be interfaced.

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  • 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

La présente invention concerne un ensemble comprenant un premier et un deuxième composant optique, le premier composant comprenant un boîtier (11) à l'intérieur duquel se trouve un émetteur optique (35) et le deuxième composant comprenant un boîtier (19) à l'intérieur duquel se trouve un dispositif (18) de traitement optique. Une première partie (30) d'un connecteur en deux parties est montée sur une paroi (16) du boîtier (11) du premier composant et comprend un moyen définissant un guide optique couplé optiquement à l'émetteur. L'autre partie (32) du connecteur en deux parties est montée sur une paroi (31) du boîtier (19) du deuxième composant et comprend un moyen définissant un guide optique couplé optiquement au dispositif de traitement (18). Les deux parties de connecteur sont directement connectables entre elles. Le moyen définissant le guide optique de la première partie de connecteur (30) comprend un dilatateur de faisceau (36) disposé de manière qu'il reçoit un signal optique de l'émetteur (35) et une lentille (38) disposée de manière qu'elle focalise le faisceau dilaté vers une extrémité d'une embase (39) de fibre optique placée coaxialement par rapport à la première partie de connecteur (30) et au moins partiellement à l'intérieur de cette dernière. Le moyen définissant le guide optique de l'autre partie (32) de connecteur comprend une fibre (44) maintenue coaxialement à l'intérieur de l'autre partie de connecteur qui vient prendre appui en about et de façon alignée sur l'embase (39) de la première partie de connecteur. La fibre (44) de l'autre partie de connecteur communique optiquement avec le dispositif de traitement (18).
PCT/GB1998/000315 1997-02-03 1998-02-02 Ensembles composants optiques Ceased WO1998034146A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9702125.7 1997-02-03
GBGB9702125.7A GB9702125D0 (en) 1997-02-03 1997-02-03 Optical component assemblies

Publications (1)

Publication Number Publication Date
WO1998034146A1 true WO1998034146A1 (fr) 1998-08-06

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ID=10806976

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/000315 Ceased WO1998034146A1 (fr) 1997-02-03 1998-02-02 Ensembles composants optiques

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GB (1) GB9702125D0 (fr)
WO (1) WO1998034146A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003034121A1 (fr) * 2001-10-19 2003-04-24 Optillion Ab Sous-ensemble optique
GB2397895A (en) * 2003-01-29 2004-08-04 Agilent Technologies Inc Optical fibre connector with clamp to grip ferrule
US9052470B2 (en) 2009-06-30 2015-06-09 Fibreco Limited Expanded beam optical fibre connector
US9791632B2 (en) 2005-07-19 2017-10-17 Gigacom Interconnect Ab Optical assembly

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JPS54102133A (en) * 1978-01-30 1979-08-11 Nippon Telegr & Teleph Corp <Ntt> Photo coupler
GB2079966A (en) * 1980-07-07 1982-01-27 Hewlett Packard Co Housing for Interfacing a Semiconductor Device With a Fiber Optic Cable
JPS63252497A (ja) * 1987-04-09 1988-10-19 Nec Corp アイソレ−タ内蔵型半導体レ−ザモジユ−ル
EP0413489A2 (fr) * 1989-08-17 1991-02-20 AT&T Corp. Assemblage optique comprenant des moyens de couplage à fibre optique
WO1991010932A1 (fr) * 1990-01-16 1991-07-25 Bt&D Technologies Limited Systemes optiques
JPH0457381A (ja) * 1990-06-27 1992-02-25 Fujitsu Ltd レセプタクル型半導体レーザデバイス
JPH04369888A (ja) * 1991-06-19 1992-12-22 Matsushita Electric Ind Co Ltd 半導体レーザモジュール
EP0519219A2 (fr) * 1991-06-17 1992-12-23 AB Stratos Limited Dispositif pour connecter optiquement un élément optique, par exemple une fibre optique, avec une lentille
JPH0553030A (ja) * 1991-08-22 1993-03-05 Furukawa Electric Co Ltd:The 導波路と光フアイバの接続装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102133A (en) * 1978-01-30 1979-08-11 Nippon Telegr & Teleph Corp <Ntt> Photo coupler
GB2079966A (en) * 1980-07-07 1982-01-27 Hewlett Packard Co Housing for Interfacing a Semiconductor Device With a Fiber Optic Cable
JPS63252497A (ja) * 1987-04-09 1988-10-19 Nec Corp アイソレ−タ内蔵型半導体レ−ザモジユ−ル
EP0413489A2 (fr) * 1989-08-17 1991-02-20 AT&T Corp. Assemblage optique comprenant des moyens de couplage à fibre optique
WO1991010932A1 (fr) * 1990-01-16 1991-07-25 Bt&D Technologies Limited Systemes optiques
JPH0457381A (ja) * 1990-06-27 1992-02-25 Fujitsu Ltd レセプタクル型半導体レーザデバイス
EP0519219A2 (fr) * 1991-06-17 1992-12-23 AB Stratos Limited Dispositif pour connecter optiquement un élément optique, par exemple une fibre optique, avec une lentille
JPH04369888A (ja) * 1991-06-19 1992-12-22 Matsushita Electric Ind Co Ltd 半導体レーザモジュール
JPH0553030A (ja) * 1991-08-22 1993-03-05 Furukawa Electric Co Ltd:The 導波路と光フアイバの接続装置

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PATENT ABSTRACTS OF JAPAN vol. 013, no. 068 (E - 716) 16 February 1989 (1989-02-16) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 259 (E - 1215) 11 June 1992 (1992-06-11) *
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003034121A1 (fr) * 2001-10-19 2003-04-24 Optillion Ab Sous-ensemble optique
US7048449B2 (en) 2001-10-19 2006-05-23 Finisar Corporation Optical sub-assembly
GB2397895A (en) * 2003-01-29 2004-08-04 Agilent Technologies Inc Optical fibre connector with clamp to grip ferrule
GB2397895B (en) * 2003-01-29 2006-05-03 Agilent Technologies Inc Opticle fibre connector
US7153036B2 (en) 2003-01-29 2006-12-26 Avago Technologies Fiber Ip (Singapore) Pte. Ltd. Optical fiber connector
US9791632B2 (en) 2005-07-19 2017-10-17 Gigacom Interconnect Ab Optical assembly
US9052470B2 (en) 2009-06-30 2015-06-09 Fibreco Limited Expanded beam optical fibre connector

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