CN102368105A - Optical fiber fast terminating assembly - Google Patents
Optical fiber fast terminating assembly Download PDFInfo
- Publication number
- CN102368105A CN102368105A CN2011103414842A CN201110341484A CN102368105A CN 102368105 A CN102368105 A CN 102368105A CN 2011103414842 A CN2011103414842 A CN 2011103414842A CN 201110341484 A CN201110341484 A CN 201110341484A CN 102368105 A CN102368105 A CN 102368105A
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- CN
- China
- Prior art keywords
- optical fiber
- grooves
- sealing ring
- assembly
- butt
- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3846—Details of mounting fibres in ferrules; Assembly methods; Manufacture with fibre stubs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
- G02B6/3636—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable 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
- G02B6/382—Dismountable 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 index-matching medium between light guides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
- G02B6/3861—Adhesive bonding
Abstract
The invention discloses an optical fiber fast terminating assembly which comprises a body and an internal hole located in the body, wherein two grooves are formed on the body till the internal hole is exposed; a butt-joint end surface of an optical fiber is located at the position of the internal hole between the grooves; and the two grooves are used for filling matched gels. The grooves respectively prevents the fixed pre-buried optical fiber glue from covering the pre-buried optical fiber butt-joint end surface due to capillary action and pre-placing enough matched gels to eliminate Fresnel reflection when an access optical fiber is butt jointed with the pre-buried optical fiber. The optical fiber butt-joint end surface is located between the two grooves of an insert core body, coaxial butt-jointing of the optical fibers can be realized by utilizing the insert core body high-precision internal hole tube bundle butting optical fiber, thereby realizing fast terminating of the optical fiber on the operation site. With the assembly provided by the invention, two grooves are sealed by sealing sleeves sleeved on the insert core body, so that the matched gels can be prevented from being volatilized or contaminated, and the product can be ensured not to be failed when being used under harsh environment conditions.
Description
Technical field
The present invention relates to the fast rapid-result end assembly of a kind of high-performance closed type optical fiber, be specifically related to the fast rapid-result end assembly of various model built-in type hermetic type optical fiber.
Background technology
At present, along with the develop rapidly of Fibre Optical Communication Technology, the PON access technology has become the main solution that global FTTH (Fiber to the home) popularizes in an all-round way.Yet, insert at this last kilometer and to install, how to accomplish to register one's residence that cost is low, easy for installation, quickness and high efficiency, it is very crucial possessing good optical property, high unfailing performance simultaneously again.
Install for the access of FTTH (Fiber to the home), traditional optical fiber fusion welding technology is because its cost is high, receive the restriction in place, installation personnel to need professional training etc. former thereby can't obtain large-area popularization when installing.The fast rapid-result end of optical fiber assembly has become the optimal selection scheme that present FTTH inserts with its advantage such as easy for installation, quick, efficient.
Common in existing fast rapid-result end assembly have through type (also claiming direct insertion or dry type) and a built-in type.The fast rapid-result end assembly of through type is owing to the restriction of prior art, and performance index are stable inadequately, can't satisfy fiber-to-the-home connection requirement.The fast rapid-result end assembly of general built-in type; Be a pre-buried optical fiber in the ceramic insertion core endoporus; One end forms the termination of docking with normal connector with ceramic insertion core behind grinding and polishing, the other end then exposes certain-length and guarantees that end face is smooth, then bared end optical fiber is installed in the V-type groove; The V-type groove is equipped with corresponding optical fiber briquetting and is used for fixing the butt joint of going into optical fiber and pre-buried optical fiber outward, in the V-type groove, presets the coupling gel during butt joint in advance.When constructing at the scene, with penetrating the V-type groove after the fiber cut and pre-buried optical fiber achieves a butt joint, there are a lot of problems in this scheme, as: 1), fracture easily in the whole process flow, cause scrapping of product because pre-buried optical fiber one end is exposed at outward outside the lock pin; 2) the V-type groove precision of making is not high, cause fiber alignment after Insertion Loss bigger than normal; 3) fiber alignment point briquetting precision is not high, can't restrain butt joint optical fiber, can't realize being coaxial docking.4) do not have the sufficient coupling gel that presets, repeatedly butt joint or the long-time back matching fluid of being on active service run off and cause logical light effect poor.5) be on active service for a long time easy ageing, distortion of product material.6) product design does not have airtight function, causes matching fluid to run off or volatilization and losing efficacy; Reasons such as 7) water logging humidity cause matching fluid contaminated and lost efficacy;
For addressing these problems; Part company has proposed in high-precision ceramic insertion core endoporus, to realize fiber alignment; Wherein the patent No. is to relate to this scheme in the patent of CN201984184U, also on the basis of this scheme, has proposed the design that gas-permeable channels is opened in ceramic side simultaneously.But there are a lot of distinct issues in this scheme: 1, in ceramic endoporus during pre-buried optical fiber, because capillary action, the butt joint end face that solidified glue can cover pre-buried optical fiber causes logical light to lose efficacy.Although 2 ceramic insertion core endoporus precision are very high; But because the diameter dimension deviation of optical fiber is difficult to and ceramic insertion core endoporus close-fitting; This scheme is not implemented to press lock at fiber alignment point, and phenomenons such as dislocation, degree of tilt might appear in the interface of two optical fiber, and the butt joint Insertion Loss is difficult to reach request for utilization.3, do not preset enough coupling gels, repeatedly butt joint back coupling gel runs off and lost efficacy.
Summary of the invention
The purpose of this invention is to provide a kind of fast rapid-result end assembly of optical fiber of high-performance hermetic type, it not only can accomplish easy for installation, quick, efficient and the cost of registering one's residence is low, possesses good optical property and high reliability simultaneously again.The present invention has solved various inefficacies or the bad problem that fast at present rapid-result end assembly exists fully.
Technical solution of the present invention is: the fast rapid-result end assembly of a kind of optical fiber; Comprise body and be positioned at intrinsic endoporus; Wherein, Offer two grooves on the said body until endoporus is exposed, the fiber alignment end face is positioned on the hole site in the middle of two grooves, and two grooves are used for filling the coupling gel.
In this programme, groove A wherein promptly near the groove of pre-buried optical fiber end, preset the coupling gel and stops up endoporus before pre-buried optical fiber, when preventing pre-buried optical fiber in the endoporus fixed fiber glue capillary flow backwards and cover fiber end face; Groove B; Promptly near the groove of external optical fiber end; Also be used to preset the coupling gel, eliminate Fresnel reflection when being used for incoming fiber optic and pre-buried fiber alignment, the coupling gel volatilizees or runs off when long-time the use; Presetting the coupling gel can replenish at any time, has guaranteed that interface has enough coupling gels when repeatedly penetrating optical fiber simultaneously.
In addition, the distance between the groove should be less, and two grooves can be slit or aperture etc. simultaneously, and two grooves can be not parallel or asymmetric.The butt joint fiber end face is positioned at two groove middle, and endoporus has the tube bank effect to optical fiber during fiber alignment, and it is bigger than normal to have solved the Insertion Loss that dislocation that prior art optical fiber occurs when groove location is docked or inclination angle problem cause.The lock pin diameter of bore is realized 1um easily with interior deviation on technology, and optical fiber self outside diameter tolerance also is controlled in the 1um easily, thereby two optical fiber are realized 1um with interior being coaxial docking in the lock pin endoporus, guaranteed that the butt joint loss is less than 0.1dB.
The said body outside also be socketed with one be used to seal two grooves sealing ring.After said body also added the coupling gel through pre-buried optical fiber, the sealing ring of on body, packing into sealed sealing ring to groove A and groove B with sealing glue.The coupling gel that adds is covered with two grooves about 3/4.Through closed loop with groove A and groove B whole airtight after, prevent to mate that gel runs off or volatilization, prevent that also mating gel is polluted simultaneously.
Particularly, said sealing ring has middle shaft through-hole, and said body is inserted in the middle shaft through-hole of sealing ring, and itself and body closely cooperate, and sealing ring is connected through the fluid sealant water-stop with body.
Particularly, be equipped with the optical fiber entrance hole on the incoming end of said body and sealing ring.
The present invention uses ceramic insertion core endoporus docking point to replace butt joint in the existing V groove, the dot encapsulation function that achieves a butt joint simultaneously, and its advantage is:
One, high performance optical fiber quick connector core possesses good optical property and high reliability.
Two, in whole making flow process, pre-buried fiber optic protection is difficult for being damaged in the inside of lock pin body, has guaranteed its quality and cost in factory process.And present optical fiber quick connector all to be pre-buried optical fiber expose, when assembling, fracture easily, it is impaired or be stained with booty to occur fiber end face simultaneously, causes butt joint to be lost efficacy.
Three, being used for fixing two fiber alignments point is the tube bank of high-precision ceramic insertion core endoporus, and endoporus is accomplished 1um easily with interior tolerance grade, make two fiber alignments after loss less than 0.1dB.And the V-type groove major part at existing quick coupler fiber alignment place all adopts organic material, this material easy ageing, distortion, and also precision is not high.Some quick coupler adopts metal material to process, and same precision is difficult to reach requirement, and cost is very high.
Four, the pre-buried optical fiber of whole quick coupler is all in the inside of lock pin body, and all material is consistent, is not acted upon by temperature changes, and the reliability of entire product is guaranteed.
Five, docking point is realized sealing, prevents the matching fluid pollution, runs off or volatilization.The optical fiber quick connector part of installing and using at present will lose efficacy about 1 year, and the coupling gel runs off, volatilizees or receive pollution is main cause.The part Company products has been taked the finedraw encapsulation scheme, runs off or pollutes and lost efficacy but cause mating the gel volatilization through long-time this aging of product distortion of being on active service.
Six, the endoporus at fiber alignment place is indeformable under the external force extruding, does not lose efficacy.And the V-type groove that uses organic material is under the extruding of external force extruding or self-contained spring, and easy deformation lost efficacy.
Description of drawings
Fig. 1 is the quick coupler lock pin body synoptic diagram through pre-buried optical fiber;
Fig. 2 is the synoptic diagram of in groove, filling indentation sealing ring behind the coupling gel;
Fig. 3 is the enlarged diagram of C part among Fig. 2.
1, body 2, pre-buried optical fiber 3, sealing ring 4, sealing glue 5, coupling gel 6, optical fiber import V hole 7, incoming fiber optic 8, fiber alignment end face.
Embodiment
Below in conjunction with accompanying drawing the present invention is carried out detailed description.
As shown in Figure 1; The present invention discloses the fast rapid-result end of a kind of optical fiber assembly, comprises body 1 and is positioned at the endoporus of body 1, wherein; Offer two groove A, B on the said body 1 until endoporus is exposed; Pre-buried optical fiber 2 and incoming fiber optic 7 are inserted by the two ends of lock pin body respectively, and the fiber alignment end face 8 of pre-buried optical fiber 2 and incoming fiber optic 7 is positioned on the hole site in the middle of two groove A, the B, and two groove A, B are used for filling coupling gel 5.
This body 1 can also can utilize grinding machine cutting knife or etching process etc. to accomplish Shape Modification by extruding or injection molding technique is processed behind the base substrate through sanding and polishing and carried out reconditioning through precision grinder and processes, and its diameter of bore is controlled in the error of 1um.This range of size realizes easily that on technology the big 1um of the relative fibre diameter of diameter of bore can realize penetrating butt joint optical fiber easily, reaches 1um simultaneously with interior being coaxial docking, and guarantees that the fiber alignment Insertion Loss is less than 0.1dB.Bulk material is pottery, metal, glass or plastics.
Among the present invention; Forming two groove A, B behind excision two parts on body 1 cylinder; And expose the endoporus of lock pin body; Two middle not cut-out places of grooves are the fiber alignment point, and wherein the effect of groove A is before pre-buried optical fiber, to add the coupling gel, prevent the pre-buried fiber end face of solidified glue capillary refluence back covering; The effect of groove B is to preset the optical fiber of abundance coupling gel, and the loss back of volatilizing in the prevention coupling gel long service process does not replenish and lost efficacy, and the while also can allow repeatedly to dock and need not add the coupling gel.
After in groove A, adding the coupling gel, go into pre-buried optical fiber 2 by a termination of lock pin body, pre-buried optical fiber 2 one ends and lock pin body end face dock with conventional connector behind factory's sanding and polishing, and conventional connector has PC, APC or LC etc.The other end is guaranteed the smooth cleaning of end face before pre-buried, docks end face simultaneously and does not excise in the cylinder endoporus in the middle of being positioned at two grooves.In groove B, preset sufficient coupling gel, guarantee to mate gel simultaneously and get into endoporus, the coupling gel is covered with 3/4 of whole groove and is the best.
Further,, prevent to mate that gel runs off or volatilization, prevent that also mating gel is polluted simultaneously in order to improve the sealing effectiveness of groove A, B, said body 1 outside also be socketed with one be used to seal two groove A, B sealing ring 3.Said seal ring material is plastics or metal.
Particularly, said sealing ring 3 has middle shaft through-hole, and said body is inserted in the middle shaft through-hole of sealing ring, and itself and body 1 closely cooperate, and sealing ring 3 is connected through the fluid sealant water-stop with body.Particularly, during indentation sealing ring 3, use sealing glue 4, guarantee that its stretching resistance meets the fiber active linker standard-required sealing ring 3 and body 1 bonding.Sealing ring 3 couples of two groove A, B implement sealing, have guaranteed that the long-time military service of coupling gel can not run off or volatilize, and the while prevents that also mating gel is polluted.
For ease optical fiber is inserted in the endoporus of lock pin body, be equipped with optical fiber entrance hole 6 on the incoming end of said body 1 and sealing ring 2.
Claims (7)
1. assembly is held in the fast short-term training of optical fiber; Comprise body and be positioned at intrinsic endoporus, it is characterized in that, offer two grooves on the said body until endoporus is exposed; The fiber alignment end face is positioned on the hole site in the middle of two grooves, and two grooves are used for filling the coupling gel.
2. the fast rapid-result end assembly of optical fiber according to claim 1 is characterized in that bulk material is pottery, metal, glass or plastics.
3. lock pin body according to claim 1 is characterized in that, body end face and external diameter grind to form adaptive conventional flexible jumper PC, APC or LC model connector.
4. the fast rapid-result end of optical fiber according to claim 1 assembly is characterized in that, the said body outside also be socketed with one be used to seal two grooves sealing ring.
5. the fast rapid-result end assembly of optical fiber according to claim 4 is characterized in that seal ring material is plastics or metal.
6. the fast rapid-result end assembly of optical fiber according to claim 5 is characterized in that said sealing ring has middle shaft through-hole, and said body is inserted in the middle shaft through-hole of sealing ring, and itself and body closely cooperate, and sealing ring is connected through the fluid sealant water-stop with body.
7. the fast rapid-result end assembly of optical fiber according to claim 5 is characterized in that, is equipped with the optical fiber entrance hole on the incoming end of said body and sealing ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341484.2A CN102368105B (en) | 2011-11-02 | A kind of Quick optical fiber terminating assembly | |
| PCT/CN2011/084319 WO2013063846A1 (en) | 2011-11-02 | 2011-12-21 | Fast termination assembly for optical fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110341484.2A CN102368105B (en) | 2011-11-02 | A kind of Quick optical fiber terminating assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102368105A true CN102368105A (en) | 2012-03-07 |
| CN102368105B CN102368105B (en) | 2016-11-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364878A (en) * | 2013-08-05 | 2013-10-23 | 四川飞阳科技有限公司 | Optical wavelength division multiplexing device and shell thereof |
| CN103364882A (en) * | 2013-08-05 | 2013-10-23 | 四川飞阳科技有限公司 | Optical fiber sealing device and optical fiber sealing method |
| CN105891952A (en) * | 2014-10-09 | 2016-08-24 | 方强 | Energy-transmitting optical fiber connector |
| CN106707421A (en) * | 2015-11-16 | 2017-05-24 | 泰科电子(上海)有限公司 | Fiber core assembly and manufacturing method thereof, and fiber connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080118205A1 (en) * | 2006-11-21 | 2008-05-22 | Kabushiki Kaisha Toshiba | Optical connector and process for connecting optical fibers |
| KR20100007449A (en) * | 2008-07-14 | 2010-01-22 | 주식회사 골드텔 | Connecting tube of the optical cable |
| CN102169212A (en) * | 2011-05-10 | 2011-08-31 | 南京邮电大学 | Quick pre-buried optical fiber connection device |
| CN202330777U (en) * | 2011-11-02 | 2012-07-11 | 潮州三环（集团）股份有限公司 | Rapid optical fiber terminating assembly |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080118205A1 (en) * | 2006-11-21 | 2008-05-22 | Kabushiki Kaisha Toshiba | Optical connector and process for connecting optical fibers |
| KR20100007449A (en) * | 2008-07-14 | 2010-01-22 | 주식회사 골드텔 | Connecting tube of the optical cable |
| CN102169212A (en) * | 2011-05-10 | 2011-08-31 | 南京邮电大学 | Quick pre-buried optical fiber connection device |
| CN202330777U (en) * | 2011-11-02 | 2012-07-11 | 潮州三环（集团）股份有限公司 | Rapid optical fiber terminating assembly |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364878A (en) * | 2013-08-05 | 2013-10-23 | 四川飞阳科技有限公司 | Optical wavelength division multiplexing device and shell thereof |
| CN103364882A (en) * | 2013-08-05 | 2013-10-23 | 四川飞阳科技有限公司 | Optical fiber sealing device and optical fiber sealing method |
| CN103364882B (en) * | 2013-08-05 | 2015-08-05 | 四川飞阳科技有限公司 | A kind of optical fiber sealing device and a kind of optical fibre sealing method |
| CN103364878B (en) * | 2013-08-05 | 2015-09-30 | 四川飞阳科技有限公司 | A kind of light wavelength division multiplexing device and housing thereof |
| CN105891952A (en) * | 2014-10-09 | 2016-08-24 | 方强 | Energy-transmitting optical fiber connector |
| CN106707421A (en) * | 2015-11-16 | 2017-05-24 | 泰科电子(上海)有限公司 | Fiber core assembly and manufacturing method thereof, and fiber connector |
| WO2017084576A1 (en) * | 2015-11-16 | 2017-05-26 | 爱德奇电讯国际贸易（上海）有限公司 | Optical fibre ferrule assembly and manufacturing method therefor, and optical fibre connector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013063846A1 (en) | 2013-05-10 |
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Granted publication date: 20161130 Termination date: 20211102 |