CN103189773A - Ferrules with complimentary mating geometry and related fiber optic connectors - Google Patents

Ferrules with complimentary mating geometry and related fiber optic connectors Download PDF

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Publication number
CN103189773A
CN103189773A CN2011800376531A CN201180037653A CN103189773A CN 103189773 A CN103189773 A CN 103189773A CN 2011800376531 A CN2011800376531 A CN 2011800376531A CN 201180037653 A CN201180037653 A CN 201180037653A CN 103189773 A CN103189773 A CN 103189773A
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CN
China
Prior art keywords
lasso
joint
optical
main body
optical fiber
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Granted
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CN2011800376531A
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Chinese (zh)
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CN103189773B (en
Inventor
迈卡·C·艾森豪尔
丹尼斯·M·克内克特
詹姆斯·P·卢瑟
托马斯·托伊尔科恩
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Corning Research and Development Corp
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Corning Optical Communications LLC
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3817Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing optical and electrical conductors
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3873Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3885Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3818Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
    • G02B6/3821Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3826Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
    • G02B6/3831Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape comprising a keying element on the plug or adapter, e.g. to forbid wrong connection

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Optical fiber ferrules (10, 20) with complementary mating geometry that are suitable for making optical connections are disclosed along with fiber optic connectors and cable assemblies using the same. In one embodiment, the fiber optic ferrule (10) includes a body (12) having a plurality of optical pathways (14) and a mating geometry that includes at least one slot (15) monolithically formed in the body of the fiber optic ferrule. The slot of the ferrule permits relatively high number of mating/unmating cycles without generating excessive wear and debris, thereby making it suitable for consumer electronic devices or the like. The disclosure is also directed to fiber optic connectors and cable assemblies using the ferrule.

Description

Lasso and associated fiber joint with complementary fit geometric configuration
Right of priority
Request applies for the right of priority right of No. the 61/369th, 371, the U.S. Provisional Application case on July 30th, 2010 to the application's case according to Patent Law, and this case relies on the content of described application case and the content of described application case all is incorporated herein by reference.
Technical field
Disclosure case is at optical fiber ferrule and associated fiber joint.More particularly, this case is the fibre-optical splice at the optical fiber ferrule with complementary fit geometric configuration and the described optical fiber ferrule of use.
Background technology
Optical fiber is used for various application more and more, includes but not limited to broadband voice, video and data transmission.Along with consumer devices is using more bandwidth gradually, the joint that is used for described device may be abandoned for the bandwidth that increases and be electrically connected and be inclined to use optics and connect.In general, the conventional optical fibers joint that is used for communication network etc. is not suitable for consumer devices.For example, compare with the interface of consumer devices and described consumer devices, the conventional optical fibers joint is relatively large.In addition, the conventional optical fibers joint need be deployed to modestly in the clean relatively environment and/or before connecting the conventional optical fibers joint and be cleaned by the technician.In addition, though fibre-optical splice restructural (that is, being applicable to cooperation/disengagement), described fibre-optical splice also is not intended to the cooperation circulation of big relatively number of times.The substitute is, the conventional optical fibers joint is the high precision joint that is designed for the insertion loss between the cooperation joint that reduces in the fiber optic network.
On the other hand, expected consumption person's electronic installation has the cooperation/disengagement circulation of big relatively number of times during normal running.Consumer electronics device will operate in the multiple environment, in described environment, often run into dirt, dust and other fragments.In addition, consumer electronics device is usually to being connected with size and space constraint.Therefore, existence is for the unsolved needs of the fibre-optical splice that is applicable to consumer devices.
Summary of the invention
Disclosure case is at optical fiber ferrule and associated fiber joint and cable assembly.More particularly, disclosure case is at the optical fiber ferrule with feature structure and associated fiber joint and cable assembly, and described feature structure is applicable to that the optics of the cooperation/disengagement circulation that runs into big relatively number of times connects.A disclosed embodiment is that described main body has a plurality of optical paths and fit geometry at first optical fiber ferrule with main body, and described fit geometry has at least one notch that integrally forms in main body.The notch of lasso allows the cooperation/disengagement circulation of the relative high reps under the situation that does not produce excessive wear and fragment, thereby makes the notch of described lasso be applicable to consumer electronics device etc.Disclosure case is also at fibre-optical splice and the cable assembly of using first lasso.
Another embodiment is at second lasso that has at the complementary fit geometric configuration of first lasso.Second optical fiber ferrule comprises main body, described main body has a plurality of optical paths and fit geometry, described fit geometry has in described main body at least one guide finger that integrally forms, and at least one spring that is arranged on the rear portion of lasso keeps feature structure.Second lasso reduces at the number of the required element of fibre-optical splice and allows quick and be easy to assemble.Disclosure case is also at fibre-optical splice and the cable assembly of using lasso.
Extra feature and advantage will be set forth in the following detailed description, and the part of additional features and advantage will will recognize maybe obviously that to those skilled in the art description comprises following detailed description, claims and accompanying drawing by putting into practice invention as herein described according to describing.
Should be with understanding, above general description and following detailed description both provide embodiment, and described embodiment aims to provide be used to the general view of the character of understanding claims and characteristic or framework.Comprise accompanying drawing so that the further understanding of disclosure case to be provided, and accompanying drawing is incorporated in this instructions and is constituted the part of this instructions into.The various embodiments of graphic diagram, and and describe and to be used for interpretation principle and operation together.
Description of drawings
Fig. 1 is the perspective end view of joint with close-up view of first optical fiber ferrule, and described first optical fiber ferrule has the complementary fit geometric configuration that cooperates for the optical fiber ferrule shown in Fig. 2 and Fig. 3;
Fig. 1 a is the synoptic diagram of cooperation of fit geometry of the lasso of the lasso of Fig. 1 and Fig. 2.
Fig. 2 and Fig. 3 are respectively front perspective view and the back perspective view with second optical fiber ferrule that is applicable to the fit geometry that cooperates with first lasso of Fig. 1;
Fig. 4 and Fig. 5 are to use the complementary fit optical fiber ferrule of another type to cooperate exploded view and the skeleton view of fibre-optical splice respectively, and the complementary fit optical fiber ferrule of described another type has the fit geometry that is similar to the optical fiber ferrule shown in Fig. 1 to Fig. 3;
Fig. 6 and Fig. 7 illustrate illustrative receptacle and the plug connector that uses first optical fiber ferrule shown in Fig. 1 to Fig. 3 and second optical fiber ferrule respectively and form the part of cable assembly respectively;
Fig. 8 is the skeleton view of the plug connector of Fig. 7, and the close-up view of the details of diagram plug connector;
Fig. 9 is the bottom perspective view that removes the plug connector of Fig. 7 of sheath and Fig. 8, and the close-up view of the details of diagram plug connector;
Figure 10 is the back perspective view that illustrates the receptacle of the Fig. 6 that is electrically connected;
Figure 11 is the perspective end view that has another optical fiber ferrule of female fit geometry and public fit geometry according to concept disclosed herein; And
Figure 12 is the difform synoptic diagram of diagram fit geometry.
Embodiment
Now will be in detail with reference to the preferred implementation of disclosure case, the instance graph of described embodiment is shown in the drawings.Under possible situation, the similar elements symbol will be used in reference to for similar elements or part.
Lasso as herein described, joint and/or cable assembly are suitable for carrying out the optics connection of various devices and/or being electrically connected.The concept of disclosure case advantageously allows simple, quick and economic connection and the disconnection for the optical fiber ferrule of the cooperation circulation of big relatively number of times.Now will be in detail with reference to preferred implementation, the instance graph of described embodiment is shown in the drawings.Under possible situation, the similar elements symbol will be used in reference to for similar elements or part.
Fig. 1 to Fig. 3 illustrates first optical fiber ferrule 10 and second optical fiber ferrule, 20, the first optical fiber ferrules 10 and second optical fiber ferrule 20 to have be used to carrying out the complementary fit geometric configuration that is used for suitable complementary structure that optical fiber connects.Specifically, Fig. 1 is that the first optical fiber ferrule 10(as the part of joint 60 is hereinafter referred to as lasso) skeleton view, and Fig. 2 and Fig. 3 are the skeleton views of second lasso 20.Specifically, Fig. 1 is the perspective end view of joint 60 with near-sighted end-view of first lasso 10, and described first lasso 10 comprises for interface at front end and connects and carry out the fit geometry that optics is connected with second lasso 20.As shown in the figure, first lasso 10 comprises main body 12, and described main body 12 has a plurality of optical paths 14.As used herein, " optical path " refers to any appropriate configuration or the element for the lasso that allows optical signal transmission.For instance, optical path can comprise for receiving for example optic fibre hole, optical lens, for example vertical cavity surface emitting laser (the vertical-cavity surface-emitting laser of each optical waveguide of the optical fiber of each optical waveguide; VCSEL) active device, photodiode, other active devices, or be used for the transmitting optics signal lasso other structures or element or attach to other structures or the element of described lasso.
The fit geometry of first lasso 10 comprises notch 15, is used for receiving when lasso is combined together the guide finger 25 of second lasso 20.In this embodiment, the fit geometry of first lasso 10 also comprises for example second box part in hole 16, and when cooperating with complementary lasso, described second box part cooperates with notch 15.In other words, notch 15 and hole 16 each receive each guide finger of second lasso.Sizes are adjusted in notch 15 and hole 16 and spacing is used for cooperating with the guide finger 25 of second lasso 20.As used herein, the notch assignment is closed geometric configuration with respect at two center lines by described fit geometry (namely, the complementary fit geometric configuration of direction X-axis) is enough excessive, thereby permission has big alignment tolerance between the corresponding fit geometry (for example pin) of notch and described notch.Lasso with the fit geometry that comprises one or more notch allows a large amount of cooperation circulations, because described lasso produces a large amount of fragments by the cooperation circulation of big relatively number of times unlike traditional lasso, described traditional lasso has for generation of the close tolerance hole of interference engagement and guide finger fit geometry.In addition, notch 15 allow between the complementary fit geometric configuration of the guide finger of for example engage boot than high tolerance.In other words, the tolerance of the fit geometry of second lasso can have more greatly than cataclysm, and suitable aligning and optical property still is provided simultaneously.
Figure la is the synoptic diagram of the fit geometry between first lasso 10 and second lasso 20 illustratively.Specifically, the fit geometry of first lasso 10 is to be represented by the shadow region, and the fit geometry of second lasso 20 is to be illustrated by the broken lines.Although fit geometry is to schematically illustrate to circular or have the notch shape of rounded end, any suitable shape can be used in fit geometry (that is, notch, hole, and/or sell), for example square, rectangle, hexagon etc.As shown in the figure, the left side of the fit geometry between first lasso 10 and second lasso 20 has uses identical shaped relative drive fit, aims at reference datum thereby produce.On the other hand, the right side of the fit geometry between first lasso 10 and second lasso 20 does not have identical shaped.In other words, the mating feature structure (for example, guide finger) of notch 15 to the second lassos 20 of first lasso 10 is bigger, and therefore be provided at as shown in the figure the left side fit geometry and the tolerance of the distance between center line L between the fit geometry of right side.In addition, fit geometry can comprise that chamfering etc. aims at and/or reduce for the wearing and tearing that repeat to cooperate and fragment helping in edge.
Fig. 2 and Fig. 3 diagram are applicable to second lasso 20 that cooperates with first lasso 10.Second lasso 20 comprises main body 22, and described main body 22 has a plurality of optical paths 14, and in the case, the optic fibre hole of the optical waveguide of optical fiber is positioned at described optical path to be used for for example receiving.Second lasso 20 comprises the fit geometry with at least one guide finger 25, and described guide finger 25 is through adjusting size and be provided for being received by the fit geometry of first lasso 10, thereby the optical waveguide of engage boot is aimed at.As shown in the figure, the main body 22 of guide finger 25 and second lasso 20 integrally forms.In other words, guide finger 25 is by making with main body 22 identical materials of lasso 20 and integrating with main body 22.In illustrated embodiment, second lasso 20 has two guide fingers 25, and described two guide fingers 25 are integrally forming in the main body of second lasso 20 on the opposite side of described a plurality of optical paths 14.Be different from the conventional optical fibers lasso that uses in the guide pin hole that receives lasso and use pin retainer finishing guide finger in position, the guide finger 25 of second lasso 20 is molded in the main body 22, is machined, or otherwise integrally forms with the main body of first lasso.In addition, the guide finger 25 of lasso 20 stretches out enough distances with engagement fit geometric configuration lasso 10, thereby through engage boot 10, each optical path 14(of 20 for example will be installed in the hole) within optical waveguide aim at.Yet, can use the traditional type lasso that first lasso 10 is cooperated with complementary lasso, in described traditional type lasso, one or more traditional direction pin is received in the guide pin hole of lasso.
Owing to many reasons, the fit geometry of first lasso 10 disclosed herein and second lasso 20 provides a plurality of advantages that surpass traditional fit geometry.The tradition fit geometry is used special-purpose guide finger, and described special-purpose guide finger is engaged in the guide pin hole of traditional lasso and usually because the variation of guide pin hole spacing produces interference engagement between guide finger and guide pin hole.Use the described interference engagement of traditional lasso to cause wearing and tearing and fragment when the cooperation circulation time of the relative high reps of experience.On the other hand, use the lasso with at least one notch to reduce wearing and tearing and the fragment that produces with a large amount of cooperation circulations.In addition, integrally form guide finger 25 with the main body 22 of first lasso 20 reliable and low cost solution are provided, described solution is applicable to the high relatively cooperation circulation that consumer electronics device for example experiences.In other words, described fit geometry is favourable, because described fit geometry allows for example for typical a large amount of cooperation of consumer electronics device/disengagement.In addition, compare with traditional fit geometry, the fit geometry with second lasso 10 of notch 26 is reduced in the wearing and tearing between the fit geometry of lasso.
Second lasso 20 optionally comprises other feature structures.As shown in the figure, at least one spring of having on the rear portion 21 of main body of being arranged in 22 of second lasso 20 keeps feature structure 27.More particularly, second lasso 20 has at least two springs and keeps feature structures 27, and described at least two springs keep feature structure 27 to be arranged on the rear portion 21 of lasso and are arranged on the opposite side of a plurality of optic fibre holes 14.Although it is to be illustrated as jut that spring keeps feature structure 27, keep feature structure for spring, other structures also are possible, described other structure example such as blind hole, groove, fastening structure etc.
Further, second lasso 20 optionally comprises one or more stop part 28.Specifically, second lasso 20 comprises two stop parts 28, and described stop part 28 is recessed into and is placed on the opposite side of described a plurality of fiber path 14 from front surface, but stop part can flush with the front surface of lasso or surpass described front surface.Other zones of second lasso 20 also can have recessed area.For instance, second lasso 20 optionally comprises the recessed area (unnumbered) around guide finger 25, and described guide finger 25 integrally forms in main body, as illustrated best in Fig. 2.In addition, lasso disclosed herein also can provide electrical connection, connects thereby provide to mix.
As shown in the figure, first lasso 10 and second lasso 20 also comprise optional back draught part 19(namely, become the part at angle), described optional back draught part 19 is adjacent to a plurality of optic fibre holes.Back draught part 19 allows to attach to the laser treatment of the optical fiber of first lasso 10 and second lasso 20.Specifically, back draught part 19 is made by concavo-convex helping is provided, and described concavo-convex prevention is to cut and/or the damage of the leading section of lasso.Specifically, back draught part 19 is using laser beam cutting and/or Throwing to stop reciprocation between laser beam and/or the fragment between the photophase, thereby prevention is to cut and/or the damage of the leading section of lasso.As shown in Fig. 1 and Fig. 2, back draught part 19 can comprise that the longitudinal axis with respect to lasso 10, lasso 20 becomes the surface at angle.Back draught part 19 for example can have to be spent to any suitable angle and/or geometric configuration between 45 degree from the front 30, but other suitable angle/geometric configuratioies are possible.In addition, back draught part 19 can begin in any suitable distance of distance optical path 14, as long as kept size and the structural intergrity of lasso.In other variants, back draught part 19 can also be optionally from the front surface of the lasso with optical path 14 to being recessed into.For instance, can be adjacent to back draught and form shoulder, thus allow back draught part 19 from the front surface of lasso to being recessed into.For example, shoulder can have apart from the front surface of lasso about 2 microns or the bigger degree of depth.
Because lasso 10, lasso 20 comprise back draught part 19, handle the described a plurality of optical fiber that are attached to described lasso 10, lasso 20 and can be included in one or more step with laser beam cutting and/or the described a plurality of optical fiber 40 of Throwing light.For example, can use separation steps to come with cut and Throwing light optical fiber 40, but also can utilize laser that cutting and Throwing light take place in a step.The operator scheme of the laser of any suitable type and/or any suitable laser all is possible.For instance, laser can be with pulse, continuously or the CO2 laser of other suitable patterns operations.The angle that also can adjust between laser beam and the optical fiber 40 produces desired angle with the end at optical fiber 40, and described angle is 12 degree, 8 degree or smooth angles for example.Because distance between the end face with hole described lasso in the end face of lasso and outer front surface (unnumbered), laser beam can avoid substantially during the cutting of a plurality of optical fiber 40 and polishing and lasso 10, lasso 20 interference.Can provide optional back draught part 19 with the refracted portion/fragment of further reduction laser beam and the probability of the interference between the lasso.For example, laser beam is aimed at cutting and/or a plurality of optical fiber 40 of Throwing light towards the roughly direction of back draught part 19 from lasso 10, lasso 20 bottoms.
For instance, use the suitable complementary structure of first lasso 10 and second lasso 20 to comprise the joint that is set to connector 60 and receptacle 70, described joint allows the user to carry out quick and reliable optics between described joint and/or mixes and connect (that is, optics/be electrically connected).More particularly, first lasso 10 and second lasso 20 form the various piece of each USB joint categories, and described each USB joint categories optionally comprises a plurality of electric contacts as shown in the figure, or alternately forms the part of optics USB joint.In other words, connector 60 is configured the plug connector into USB, and receptacle 70 is configured for USB accepts joint, as shown in the figure.Other details of first lasso 10 and second lasso 20 will be in conjunction with the Optical fiber plug 60 shown in Fig. 6 to Figure 10 and receptacle 70 following argumentations.The concept of first lasso and second lasso can be used for lasso, joint and the adapting device of other types.
For instance, Fig. 4 and Fig. 5 are respectively and use with complementary fit geometric configuration another to organize each fibre-optical splice 100 of first lasso 110 and second lasso 120,200 exploded view and skeleton view.First lasso 110 comprises the fit geometry of at least one notch 115 that has in main body of being formed at 112, is similar to the lasso 10 as the part of fit geometry.Similarly, second lasso 120 comprises the fit geometry with at least one guide finger 125, and described at least one guide finger 125 integrally forms with main body, is similar to the lasso 20 as the part of fit geometry.Cooperate first lasso 110 and second lasso 120 to be configured MPO type fiber joint into for example MT fibre-optical splice, described fibre-optical splice uses adapter (not shown) to be combined together, and is possible but be to use other fibre-optical splices configurations of open concept.Further, fibre-optical splice 100 and fibre-optical splice 200 are the part of cable assembly, and described cable assembly has one or more optical waveguide (for clarity sake, not shown) of for example optical fiber in the hole that is inserted into lasso.Fibre-optical splice 100, fibre-optical splice 200 only are the example of fibre-optical splice and cable assembly, and described example can be incorporated lasso into according to disclosed concept.
More particularly, Fig. 4 illustrates the exploded view of fibre-optical splice 100, and while Fig. 5 diagram can comprise the wiring layout by the fibre-optical splice 200 of the similar elements of similar elements symbolic representation.As shown in Figure 4, optic splice 100 comprise optionally that spring base 104, volute spring 105, spring push away 118, inlet tube 130 and hollow joint shell 102 substantially.The optional spring base 104 that is illustrated in the exemplary embodiment among Fig. 4 can be located between lasso 110 and volute spring 105 adjacent to the back side of rearward end 110b.Longitudinal extension passes that the opening 106 of spring base 104 is configurable to be passed spring with the end sections (not shown) that allow inlet tube 130 and optical waveguide and push away 118 back sides to lasso 110.Inlet tube 130 can be positioned at spring pushes away within the opening 106 of the opening 112 of 118 opening 122, volute spring 110 and spring base 104.The opening 132 that longitudinal extension passes inlet tube 130 receives and is directed at the end sections of the optical fiber of the fiber optic cables in each hole of each lasso.
Fibre-optical splice 100 can comprise for fibre-optical splice 100 being cooperated and being fixed on aligning and/or attachment structure within the adapter (unnumbered).As shown in the figure, lasso 110, spring base 104, volute spring 105, spring push away 118 fore-end 124 and inlet tube 130 and can be positioned at least in part within the joint shell 102.In an example, pushing away 118 flexible arms that provide 126 at spring can be from fore-end 124 longitudinal extensions to be engaged on the opening 103 that forms the joint shell 102, with fixing with joint shell 102 for spring being pushed away 122.Front end robot stop part (invisible) can be provided at the inside surface of joint shell 102, movable when being arranged within the joint shell 102 with convenient lasso 110, but described lasso 110 remains in the described joint shell 102.Lasso 110 by volute spring 105 and spring base 104 bias voltages forward.The fibre-optical splice 200 of Fig. 5 has with fibre-optical splice 100 similarly constructs, but described fibre-optical splice 200 comprises lasso 120 rather than lasso 110, is applicable to the cable assembly that cooperates with fibre-optical splice 100 thereby provide.
Fig. 6 to Figure 10 illustrates the illustrative fibre-optical splice that uses first optical fiber ferrule 10 shown in Fig. 1 to Fig. 3 and second optical fiber ferrule 20 respectively respectively.Specifically, Fig. 6 and Figure 10 illustrate receptacle 60, and Fig. 7 to Fig. 9 diagram attaches to the connector 70 of each cable, thereby form the part of each cable assembly (unnumbered).Receptacle 60 and connector 70 directly are combined together to form optics between receptacle 60 and the connector 70 and/or be electrically connected in an orientation.Although lasso 10, lasso 20 are illustrated as the part of receptacle 60 and connector 70, the variant of lasso or lasso can be used for the joint of other types, described joint is the joint of optics only for example.
Receptacle 60 comprises first lasso 10 that is arranged at least in part within the housing 62, as Fig. 6 and shown in Figure 10.Receptacle 60 is configured the joint into USB.Specifically, receptacle 60 with only have the USB connector back compatible that is electrically connected, and receptacle 60 may be used for having, and optics connects or optics connects and be electrically connected both suitable USB connector.Specifically, receptacle 60 also comprises a plurality of electric contacts 63, is used for carrying out being electrically connected between receptacle 60 and the connector 70.Electric contact 63 can be molded together with lasso 10, so that the wipe surfaces (that is the surface level that, comprises the lasso of electric contact) of the outstanding a little lasso of described electric contact 63 or flush or described electric contact 63 have other suitable attachment means relative with the wipe surfaces of lasso.Receptacle 60 has transfer element 69(namely, electric wire and optical fiber), the rear portion that described transfer element routes to joint is used for being electrically connected with electric contact 63, and described transfer element routes to a plurality of optical paths 14 of lasso 10, as illustrated best in Figure 10.Housing 62 also comprises teat 65, is used for circuit board etc. is fixed and/or be grounded to socket 60.In Figure 10, housing 62 comprises a plurality of disposition of latch arm 62a as illustrated best, is used for when connector and receptacle 60 are combined together connector and receptacle 60 being fixed.Although invisible, second group of disposition of latch arm 62a is arranged in the lower surface of housing 62 on both.As shown in the figure, disposition of latch arm 62a is cantilever, but disposition of latch arm 62a can have other appropriate structuring or can be omitted fully.Further, housing 62 comprises the locking teat 62b for the seam of stationary housing 62, as illustrated best in Figure 10.
Fig. 7 to Fig. 9 diagram is set to be applicable to the joint of the connector 70 that cooperates with receptacle 60.Connector 70 comprises second lasso 20 that is arranged at least in part within the housing 72.Fig. 8 is the skeleton view of connector 70, has the diagram close-up view of lasso 20 within ferrule seat 74, and Fig. 9 is the bottom perspective view of connector 70, wherein removes housing 72 with lasso 20 cooperations within the diagram ferrule seat 74.
Illustrative connector 70 comprises lasso 20, housing 72, electric contact 73, ferrule guide 74, is used for a pair of elastic component 75 and the shell (unnumbered) of bias voltage lasso 20 forward.Be similar to receptacle 60, connector 70 is configured to the USB joint, still the joint according to concept other types disclosed herein also is possible.Specifically, connector 70 with only have the USB receptacle back compatible that is electrically connected, and connector 70 may be used for having, and optics connects or optics connects and be electrically connected both suitable USB receptacle.Specifically, connector 70 comprises a plurality of electric contacts 73, is used for carrying out being electrically connected between receptacle 60 and the connector 70 (that is, with the electric contact 63 of receptacle 60 be connected).As receptacle 60, electric contact 73 can be molded together with lasso 20, so that the wipe surfaces (that is the surface level that, comprises the lasso of electric contact) of described electric contact 73 and lasso flushes relatively or described electric contact 73 has other suitable attachment means.Connector 70 has transfer element 69(namely, electric wire and optical waveguide), the rear portion that described transfer element routes to joint is used for being electrically connected with electric contact 73, or described transfer element routes to a plurality of holes 14 of lasso 20, as shown in the figure.
The close-up view of Fig. 9 diagram lasso 20, described lasso 20 are arranged within the recess (unnumbered) of ferrule guide 74 and by one or more elastic component 75 and are biased into front position.As shown in the figure, the recess of ferrule guide 74 has the passage that leads to the rear portion, with the optical waveguide (that is transfer element) that is provided for route cable 79 passage to lasso 20.In this embodiment, elastic component 75 is volute springs, but for example other suitable elastic components of sheet spring etc. are possible.In Fig. 2, the spring that lasso 20 is included on the opposite side in a plurality of holes 14 keeps feature structure 27 as illustrated best.As shown in the figure, spring maintenance feature structure 27 is the juts that elastic component 75 are mounted to the rearward end of lasso 20.In addition, ferrule guide 74 comprises for the jut of second end that elastic component 75 as shown in the figure is installed etc.Ferrule guide 74 also comprises lasso stop part 74a, is used for being limited in the movement of the lasso 20 within the ferrule guide.Lasso stop part 74a have with lasso 20 on stop part 28(Fig. 2) complementary shape and position.In addition, lasso stop part 74a has into complementary one-tenth angle surface with stop part 28, to help lasso 20 and 74 pairs of centers of ferrule guide and the displacement of prevention excessive sideways.When housing 72 is installed, lasso 20 is trapped between ferrule guide 74 and the housing 72, as shown in Fig. 7 and Fig. 8.Housing 72 also comprises a plurality of window 72a that cooperate for the disposition of latch arm 62a with receptacle 60, is used for when cooperating connector 70 being fixed to receptacle 60.Further, the opposite side of ferrule guide 74 can be used for electric contact 73 is installed on described ferrule guide 74, as shown in the figure.
In addition, first lasso can have other fit geometry, still uses simultaneously as notch disclosed herein.For instance, Figure 11 diagram has the joint 60' of lasso 10'.Lasso 10' is similar to the first lasso 10', but lasso 10' comprises the fit geometry with notch 15, and is arranged in the guide finger 25 on the opposite side of a plurality of optic fibre holes 14.In other words, lasso 10' has box part and pin thread part; Rather than have the picture lasso 10 two box parts.Certainly, use the concept of female slot-open-section and pin thread pin on identical lasso to can be used for any suitable lasso and/or joint design.In addition, as mentioned above, fit geometry can have the shape except circle.Figure 12 is the synoptic diagram that illustrative illustrates non-round complementary fit geometric configuration, and described geometric configuration has for the notch 15' of first lasso and rectangular shape hole 16'.Second lasso has the complementary fit geometric configuration that is set to the rectangle guide finger, described rectangle guide finger is adjusted size and dimension be used for cooperating with notch 15' and hole 16'.The fit geometry that use has a plane can reduce the power between the fit geometry.In other words, contact with the line that is produced by circular geometry and to compare, power uses plane (that is, square and rectangle) can spread over greatly on the surface, so the plane can reduce wear and fragment.In addition, the plane can increase stability along the weak axle between the lasso.In other words relatively large material, improved stability, because before, must use the plane and be out of shape along the angle between the lasso of weak axle (just, centering on the center line bending of pin) in introducing.
Also disclose the method for making the optical fiber ferrule with main body, described main body has a plurality of optical paths and fit geometry as discussed herein.Said method comprising the steps of: form the main body of lasso so that fit geometry has at least one notch that integrally forms in described main body.Described method can further may further comprise the steps: form hole or pin, wherein at least one notch integrally forms in main body.Other steps can may further comprise the steps: form optical path in lasso, described optical path comprises one or more optic fibre hole, optical lens, and/or active device.Other optional steps may further comprise the steps: form the back draught part at lasso.Such as argumentation, described method can comprise the further step that uses lasso to produce joint and/or cable assembly.
Although the instantiation with reference to preferred implementation and described embodiment illustrates and describes disclosure case in this article, but should will it is evident that other embodiments and example can be carried out similar functions and/or reach similar results to the those skilled in the art in this area.All described equal embodiments and example are all in the spirit and scope of disclosure case, and intention is contained by additional claims.Also will it will be apparent for a person skilled in the art that under situation without departing from the spirit and scope of the present invention, but modifications and variations of the present invention are.Therefore, the invention is intended to contain modifications and variations of the present invention, as long as described modifications and variations are within the scope of the coordinator of additional claims and described claims.

Claims (21)

1. optical fiber ferrule, described optical fiber ferrule comprises:
Main body, described main body has a plurality of optical paths and fit geometry, and wherein said fit geometry has at least one notch, and described at least one notch integrally forms in the described main body of described optical fiber ferrule.
2. lasso as claimed in claim 1, described fit geometry further comprises the hole.
3. lasso as claimed in claim 1, described fit geometry further comprises pin.
4. as the described lasso of claim 1 to 3, wherein said a plurality of optical paths are to be selected from the group of being made up of following: optic fibre hole, optical lens or active device.
5. as the described lasso of claim 1 to 4, wherein said lasso has the back draught part that is adjacent to described a plurality of optical paths, thereby allows to attach to the Laser Processing of a plurality of optical waveguides of described lasso.
6. as the described lasso of claim 1 to 5, wherein said lasso is the part of joint.
7. lasso as claimed in claim 6, wherein said joint is the part of cable assembly.
8. lasso as claimed in claim 6, wherein said a plurality of optical paths comprise at least one optical lens.
9. as the described lasso of claim 1 to 8, wherein said lasso is the part with USB joint of a plurality of electric contacts.
10. as the described lasso of claim 1 to 9, wherein said lasso cooperates with the complementation fiber lasso.
11. the joint with optical fiber ferrule, described joint comprises:
Main body, described main body has a plurality of optical paths and fit geometry, and wherein said fit geometry has at least one notch, and described at least one notch integrally forms in the described main body of described optical fiber ferrule.
12. joint as claimed in claim 11, the described fit geometry of described lasso further comprises hole or pin.
13. as claim 11 or 12 described joints, wherein said optical fiber ferrule has the back draught part that is adjacent to described a plurality of optical paths, thereby allows to attach to the Laser Processing of a plurality of optical waveguides of described lasso.
14. as the described joint of claim 11 to 13, further comprise a plurality of electric contacts.
15. as the described joint of claim 11 to 14, wherein said optical fiber ferrule is the part of USB joint, described USB joint further comprises sheath.
16. as the described joint of claim 11 to 15, described joint is the part of cable assembly.
17. a manufacturing has the method for the optical fiber ferrule of main body, described main body has a plurality of optical paths and fit geometry, said method comprising the steps of:
Formation has the described main body of the described lasso of fit geometry, and described fit geometry is included at least one notch that integrally forms in the described main body.
18. method as claimed in claim 17, described method further are included in the step that forms hole or pin in the described main body.
19. as claim 17 or 18 described methods, described a plurality of optical paths comprise one or more optic fibre hole, optical lens or active device.
20. as the described method of claim 17 to 19, described method further is included in the step that forms the back draught part on the described lasso.
21. as the described method of claim 17 to 20, described method comprises that further generation comprises the joint of described lasso or the step of cable assembly.
CN201180037653.1A 2010-07-30 2011-07-25 There is lasso and the associated fiber joint of complementary fit geometry Expired - Fee Related CN103189773B (en)

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JP2013533515A (en) 2013-08-22

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