CN101349788B - Optical connection structure and optical connection method thereof - Google Patents

Optical connection structure and optical connection method thereof Download PDF

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Publication number
CN101349788B
CN101349788B CN200810124982XA CN200810124982A CN101349788B CN 101349788 B CN101349788 B CN 101349788B CN 200810124982X A CN200810124982X A CN 200810124982XA CN 200810124982 A CN200810124982 A CN 200810124982A CN 101349788 B CN101349788 B CN 101349788B
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link
cementability
optical
optical fiber
face
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CN101349788A (en
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铃木正义
佐佐木恭一
小林辰志
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Tomoegawa Co Ltd
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Tomoegawa Paper Co Ltd
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Priority claimed from JP2004086343A external-priority patent/JP4043448B2/en
Priority claimed from JP2004170679A external-priority patent/JP4109653B2/en
Priority claimed from JP2004211337A external-priority patent/JP3993590B2/en
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Abstract

The present invention provides an optical connection structure and optical connection method for enabling a connection characterized by a simple structure, ability to retain optical fibers in an adhered state, easy installation and detachment/attachment, and excellent optical stability. The optical connection structure proposed by the present invention has a solid viscous connection member having refractive-index matching property disposed in a single layer state between the end faces of mutually opposing optical transmission media or between the end face of an optical transmission medium and an optical component that are mutually opposing. The solid viscous connection member should desirably be made of silicone resin or acrylic resin.

Description

Optical connecting structure and optical connection method
The application is that submit, application number the dividing an application for the patented claim of " optical connecting structure and optical connection method " that be 200480034208.X, denomination of invention on November 17th, 2004.
Technical field
The present invention relates to a kind ofly connect optical transmission medium each other or connect optical transmission medium and the optical connecting structure of optical element and the optical connection method that makes it to form.
Background technology
As optic fiber connection method, through optical fiber maybe having been inserted each other the aglet butt joint of optical fiber, general normal employing physical connection method.Example as in this case can be enumerated mechanical link, the joints of optical fibre etc., and generally is mechanical link under permanent situation about connecting and is that the joints of optical fibre effectively and widely utilize under the situation that frequently connects dismounting.The two all is through imposing squeeze pressure vertically at fiber end face, make it physical connection, and under the situation of the joints of optical fibre, in general because optical fiber is not only crisp but a little less than, therefore be inserted into protection in the optical fiber aglet, to realize the physics contact of fiber end face.
In this physical method connected, the bearing accuracy of optical fiber or end surface shape greatly influenced connection performance.For example, if the angular deflection of end face or end surface shape are coarse, then owing to air between the optical fiber end of butt joint flows into, Fresnel reflection becomes greatly on the connection end face, and therefore the problem of connection loss increase takes place.
As this way to solve the problem, up to now, various researchs are arranged.As one of which, for example can enumerate the end face of optical fiber or the method that the height milled processed is carried out in the end face and the aglet of optical fiber.But milled processed needs a lot of times and funds, is problematic as the method for attachment of widespread use, and therefore, its method has been improved into big problem.
Also have, also studied the method that does not need grinding step and under the state of cutting still, connect optical fiber.As one of its method, proposed to make the refractive index adjustment agent of aqueous or lubricated smectic to connect the method that connects between the end face between optical fiber with refractive index identical or approximate with fiber cores.This method is adjusted agent with refractive index and is coated on the fiber end face and docks optical fiber, thus, prevents that air from invading and connects end face, avoids the Fresnel reflection that produces because of air, reduces to connect loss.But in the method, adjust the material that the aqueous or lubricated smectic of silicone or paraffin class is generally used in agent, thereby a certain amount of refractive index adjustment of coating agent is very difficult on the very little fiber end face of area as refractive index.And if excessive coating refractive index adjustment agent, then pollution around the connecting portion or the dust that causes thus adhere to and are a problem.Have again,, be not easy to obtain optic stability because the refractive index that this method adopted adjustment agent generally has the character that flows easily, thereby flows out from connecting portion.Have again; If utilize the refractive index adjustment agent of aqueous or lubricated smectic that optical fiber can be loaded and unloaded; All want the adjustment agent of wiping refractive index or will apply a certain amount of operation once more during then because of each loading and unloading, therefore, taken place and the low problem of operating efficiency the expensive time.
To this, inquire into the method for using solid-state refractive index adjustment agent.For example, proposed not through adhesive linkage, layer of adhesive material and the direct method (patent documentation 1: specially permit communique No. 2676705) of driving fit structure of installation of transparent adjustment material film to fiber end face ground; Or make light transmission body or the elastic body of softness method (patent documentation 2: the spy opens 2001-324641 communique and patent documentation 3: the spy opens flat 05-34532 communique) between the structure that is connected the end of fiber cores with refractive index close with the refractive index of core.But at the former, be difficult to regulate and be used for the squeeze pressure of optical fiber of driving fit to the adjustment material film, and if squeeze pressure excessive, then optical fiber might split or produce breach; The latter, also be to can not get sufficient adaptation only according to elastomeric elasticity, there is the excessive danger of squeeze pressure in the result.Also have,, thereby will keep stable often type of attachment difficult because therefore both stationary states can not keep the connection of optical fiber the time, receive because the mechanical aspects of refractive index adjustment component or the factor of hot aspect expand, shrink the influence that is brought easily.
Also have; In the refractive index adjustment agent or solid-state refractive index adjustment component of the aqueous or lubricated smectic that in the past adopts; Because the stationary state in the time of can not keeping the optical fiber connection; Therefore, receive easily to expand, shrink the influence that is brought, thereby will keep stable often type of attachment difficulty owing to the factor of mechanical aspects or hot aspect.Specifically, because mechanical vibration or expand to shrink, optical fiber changes at interval smallly, therefore, when the refractive index adjustment agent of using aqueous or lubricated smectic, the phenomenon that superrefraction rate adjustment agent is flowed out in its slit occurs.Also have, when using solid-state refractive index adjustment component,, occurred that airflow is gone in the slit between the optical fiber, the danger of entrained air bubbles, reduction optical property because refractive index adjustment component and fiber end face ask that easy disengaging falls.
In addition, proposed to paste the method (patent documentation 4: the spy opens clear 55-153912 communique) of the dielectric film that scribbles adhesives in the one side of optical fiber connecting portion.According to this method, for the one side that makes dielectric film has cementability, though can improve and a side optical fibers between adaptation and confining force, and the closing force of opposite side is insufficient, and is such as stated, the damaged danger of optical fiber occurred.Also have,, on the interface of each layer, also reflect, the problem of loss occurred taking place to connect owing to be 2 layers of structure that constitute by adhesive linkage and dielectric film.More have, because adhesive linkage is film, the weak strength of adhesives laminar surface has occurred at the fiber end face of butt joint etc. because of problems such as its burr scratch easily.
Have again; Be arranged to the method for driving fit on optical transmission medium as making parts (oxide film) with refractive index scalability; Proposed to form the method (patent documentation 5: the spy opens flat 05-157935 communique) of heat oxide film because of laser at the light output end face through from fiber cores surface feeding sputtering laser.At this moment, owing to regulate or the raw-material quantity delivered of oxide film and the temperature of oxide film raw material liq with laser intensity, the oxide film state changes, and therefore, the state difficulty, the production efficiency that are adjusted to regulation are low.Also have, need to use with aqueous starting material gasification and send into the device of reaction chamber, the required expense of equipment has caused the cost raising.
Summary of the invention
As above-mentioned, existing, through optical fiber being applied the method that squeeze pressure butt joint fiber end face connects each other and utilizing refractive index to adjust in the method for agent, exist aforesaid problem.In order to address these problems; Various schemes have been proposed; And the objective of the invention is to; Provide simpler, under the state of driving fit, keep optical fiber, can install, dismantle and can realize the optical connecting structure and the optical connection method of the connection that optical stability is good more easily more in the past than the technical scheme structure that proposed.
People such as present inventor discover through using solid-state cementability to connect material through inquiring into, and can carry out very simply being connected with optics between the optical element each other or at optical transmission medium at the optical transmission medium of optical fiber etc., so that completion the present invention.
Be optical connecting structure of the present invention, it is characterized in that the solid-state cementability link with refractive index scalability is with the state driving fit of individual layer and between between the optical transmission medium end face that faces one another or between the end face and optics at optical transmission medium.
Have, in the present invention, term " solid-state cementability link " is meant under normal temperature, stationary state, does not flow and the cementability link of the shape that maintenance is stipulated again.
In the present invention; The thickness cementability link, after in connecting portion, connecting; Promptly between the optical transmission medium end face that faces one another or the thickness of the end face of optical transmission medium and the cementability link between the optical element, with 50 μ m or be advisable below it.Also have the bonding of above-mentioned cementability link to keep at a distance, with 10 μ m or be advisable more than it.Also have, above-mentioned cementability link is to constitute suitable by silicone resin or acryl resin.
In the present invention, above-mentioned optical transmission medium, from and the contacted end face of above-mentioned cementability link center between the radius R of the minimum value and value D the circumference of this station connecing property link and this optical transmission medium, to satisfy
R＜D≤60R
Relation be advisable.Also have, above-mentioned cementability link, the supported member supporting of its circumference and also can.
In the concrete mode of optical connecting structure of the present invention; It is characterized in that; Optical connecting structure; Between the optical transmission medium with the core that faces one another or have to clip between optical transmission medium and the optical element of core and possess the cementability link refractive index scalability, that constitute by individual layer, and be made as D to the minimum value and value the circumference of cementability link when center from the core of optical transmission medium 1, maximal value is made as D 2, optical transmission medium the radius radius that is made as the core of R, optical transmission medium when being made as r, satisfy D1>=r, and D2≤1.5R.
In other concrete modes of optical connecting structure of the present invention; It is characterized in that; Optical connecting structure be make have an optical fiber arrangements hole at least and at this optical fiber arrangements hole internal fixation optical fiber the pair of metal hoop each other or a pair of latch that comprises this aglet clip solid-state cementability link butt joint each other and form optics and connect with refractive index scalability; As this cementability link, use the laminar adhesives that constitutes by individual layer.
At this moment, can possess to have and make above-mentioned aglet each other or the above-mentioned latch parts of contraposition each other.Also have, the parts that are used to carry out above-mentioned contraposition are open sleeve, and are inner in its open sleeve, aglet each other or latch clip above-mentioned cementability link butt joint each other and also can.
Also have, in above-mentioned optical connecting structure, the parts that are used for contraposition are the guiding bolt, and above-mentioned aglet or latch have the guiding keyhole, insert the contraposition of carrying out aglet or latch in the guiding keyhole that faces one another through the bolt that will lead and also can.
Also have; In above-mentioned optical connecting structure of the present invention; Above-mentioned aglet or latch are installed on the adapter; Above-mentioned solid-state cementability connecting portion parts remain on adapter inside, and aglet each other or latch clip cementability link butt joint each other in adapter inside and realize that optics is connecting and also can.At this moment, the cementability link can be held individually on the adapter, or the cementability link remains on the adapter with the state of supported member supporting and also can.
In above-mentioned optical connecting structure of the present invention, the cementability link can be by support member supports, and the above-mentioned support component that is supporting the cementability link is installed on open sleeve inside and also can.Also have, supporting the support component of cementability link, can be made up of cylinder-like part, and be supported with the cementability link at an end of this cylinder-like part, the other end of cylinder-like part is embedded on above-mentioned aglet or the adapter also can.
In other concrete embodiments of optical connecting structure of the present invention; Optical connecting structure possesses a pair of optical transmission medium at least, has the arrangement part of arrangement groove, has the solid-state bonding link of distortion freely of refractive index scalability and the support component that supports this cementability link; It is characterized in that; In the arrangement groove of above-mentioned arrangement part; The end face of a pair of optical transmission medium is placed with facing one another, and support component is placed on the arrangement groove top between above-mentioned optical transmission medium, clips at least one pair of optical transmission medium of cementability link and is connected by optics.
In above-mentioned optical connecting structure, above-mentioned arrangement part upper edge with arrange direction that groove intersects and be provided with the groove that is used to place support component and also can.Also have, in above-mentioned optical connecting structure, support component has a lug boss at least, and arrangement part has a Kong Yike at least.At this moment, can in the hole of arrangement part, insert the lug boss of support component and fix, and can support component be placed on the top of arranging groove.
The 1st embodiment of optical connection method of the present invention is; Through using optical transmission medium and optical element and laminar cementability link with refractive index scalability; And the end face that connects optical transmission medium each other or the method for the end face of optical transmission medium and optical element; It is characterized in that, comprising: in the operation of the laminar cementability link of configuration between the end face of the optical transmission medium that faces one another or between the end face of optical transmission medium and optical element; The operation that the end face of one sidelight transmission medium is moved till the cementability link up to driving fit; The end face of the optical transmission medium of this side is followed distortion and operation that driving fit is moved further till on this optical transmission medium of opposite side or the optical element up to above-mentioned laminar cementability link.
The 2nd embodiment of optical connection method of the present invention; It is characterized in that; Have: be expressed to laminar cementability link and make it under the state of driving fit still through end face with optical transmission medium; Laminar cementability link relative light transmission medium is relatively moved, the operation that the part of laminar cementability link is cut under the state that is attached on the end face along the direction of principal axis of optical transmission medium; And the operation that makes the optical transmission medium that is attached with solid-state cementability link on the end face and other optical transmission mediums or combine with optical element.At this moment, laminar cementability link can be supported in the end face processing element.Also have, above-mentioned end face processing element can have the through hole that is used to insert optical transmission medium, and at an end of end face processing element, blocks through hole ground album leave sheet cementability link and also can.
About above-mentioned optical connection method, as optical transmission medium, with the situation more specifically explanation as an example of the optical fiber that used the coating of removing the end and cutting.At first; Till laminar cementability link, optical fiber is relatively moved up to the optical fiber end driving fit with respect to the cementability link; Then, optical fiber is further axially moved, thus; The part of laminar cementability link is cut open under the state attached to fiber end face, and the cementability link sticks on fiber end face and carries out fiber end face and handle.In this method, only pass through moving of optical fiber, the cementability link is sticked on the optical fiber end easily, and need not to use the equipment of complicated apparatus or great number.Then, the optical fiber that end face is disposed docks and optical bond with other optical fiber or with other optical elements, and makes optical connecting structure of the present invention.
Have, in this manual, so-called " laminar cementability link is relatively moved with respect to the direction of principal axis of optical transmission medium along optical transmission medium " is meant no matter move that any one can in cementability link and the optical fiber again.Also have, its translational speed or displacement are used as long as select aptly.
The 3rd embodiment of optical connection method of the present invention is to use at least one pair of optical transmission medium, has the arrangement part of arranging groove, the optical connection method that has the solid-state cementability link of refractive index scalability and distortion freely and support its support component formation optical connecting structure; It is characterized in that possessing: the operation that the end face of a pair of optical transmission medium is placed with facing one another; But the solid-state cementability of placement support Free Transform connects the operation of the support component of material above the arrangement groove between the optical transmission medium that faces one another; And opposed facing optical transmission medium clipped the butt joint of above-mentioned cementability link and carry out the operation that optics connects.
At first, describe for optical connecting structure of the present invention.As optical transmission medium used herein, except above-mentioned optical fiber, can enumerate optical waveguide etc., its kind limits especially, then no matter adopts which kind of medium can as long as can transmit light.Also have, optical fiber is not had any qualification yet, as long as suitably select by its purposes.For example, can use the optical fiber of forming by quartzy, plastic or other material, use porous optical fiber also can.Also have, as optical waveguide, polyimide optical waveguide capable of using, PMMA optical waveguide and epoxy optical waveguide etc.Have again,, also, therefore, can stablize connection because of the wetting state driving fit of solid-state cementability link even the kind of employed two optical transmission mediums is different.Also have, even the optical transmission medium of various outer diameter, as long as the diameter of core is identical, applicable the present invention.Have again, also do not do any qualification, also can use the heart yearn of the fibre ribbon that constitutes by many optical fiber for the bar number of optical fiber, the number of optical waveguide.
In the present invention,, can enumerate optical lens, light filter etc., not do special qualification about its kind as the optical element that is connected with optical transmission medium optics.Optical lens for example can be enumerated, have wide variety of shapes such as two protruding, two recessed, concavo-convex, plano-convex, aspheric surface or collimation lens, cylindrical lens etc.; For example can enumerate as light filter, except general optical communication with the light filter, also have multilayer film light filter or polyimide light filter etc.
The used solid-state cementability link of the present invention is when contacting with optical transmission medium or optical element, so long as lean on the suitable tackiness can be close and get final product to the parts of the end of optical transmission medium.It is desirable to use and optical transmission medium between have loading and unloading property, and cohesion do not take place destroy, and when dismounting non-cohesive cementitious material on optical transmission medium.Specifically; Can use macromolecular material; For example, acrylic acid series, epoxy system, vinyl system, silicone-based, rubber are, urethane is, isobutylene is, nylon is, bis-phenol is, butylene glycol is, polyimide is, fluoridize various adhesivess such as epoxy system, fluorate acrylic acid system.Wherein, consider, preferably use silicone-based and acrylic acid series adhesives from environment resistant, cementability and other aspects.Have again, constitute porous structure, when connecting, apply suitable squeeze pressure and compress the cementability link, can eliminate air, can not influence light loss through cementability being connected material though also have according to material.
The used so-called silicone adhesives of the present invention is meant that main chain backbone by the adhesives that Si-O-Si combines (siloxane) to constitute, is to be made up of silicone rubber or silicone resin.Coated curing or film forming under the state that those adhesivess dissolve in organic solvent.The host polymer of silicone rubber is the dimethyl silicone polymer of straight chain shape, comprises the compound that the part of methyl is replaced with phenyl or propenyl.Also have, it is resin about 3000～10,000, that have three-dimensional structure that silicone resin has used molecular weight, is to play a part as the resin that is endowed adhesive property aspect the adhesives at rubber.Have again, in the silicone bonding agent, can add crosslinking chemical, softening agent, bonding adjustment agent and other adjuvants and regulate bonding force, wetting state, or give water tolerance, thermotolerance also can.
Even the silicone-based adhesives has the well also good characteristics of bonding force under high temperature, low-temperature condition of heat-resisting confining force.Therefore; Make the silicone-based bonding agent between two optical transmission mediums or in the optical connecting structure between optical transmission medium and the optical element; Even connecting portion also keeps driving fit under hot environment (～250 ℃) or under low temperature environment (～-50 ℃), can remain stable connection status.Also have, even after having experienced high temperature, also non-sclerous not flavescence, and can be well from being peeled by adherend.Also have, its insulativity of silicone-based adhesives, resistance to chemical reagents, against weather, have excellent water-resistance, even for the material of wide scope, for example, the optical fiber that is coated by fluororesin for the plastic optical fiber of being made by fluororesin or covering etc. also can driving fit.Also have, even even for optical waveguide or optical element for being the part of substrate with resins such as fluorinated polyimides, also show cementability, thereby can effectively use.
The used acrylic acid series adhesives of the present invention is meant, its basic structure is that the carbon number of 2～12 Arrcostab or methacrylic acid is the polymkeric substance that 4～12 Arrcostab constitutes as principal monomer with acrylic acid carbon number.Specifically can enumerate out; The alkyl esters of methacrylic acids such as for example acrylic acid alkyl esters such as ethyl acrylate, n-butyl acrylate, isobutyl acrylate, 2-EHA, acrylic acid bay alcohol ester, benzyl acrylate, and n-BMA, isobutyl methacrylate, methacrylic acid 2-Octyl Nitrite, methacrylic acid bay alcohol ester, benzyl methacrylate.Also have, as with the monomer of these principal monomer copolymerization, can enumerate, for example methyl acrylate, methyl methacrylate, Jia Jibingxisuanyizhi, propyl methacrylate, vinyl acetate, vinyl cyanide, methacrylonitrile, acrylic amide, styrene etc.
Also have,, on the acrylic acid adhesives, can make it to have cross-linked structure in order to give driving fit to the required cohesiveness of optical transmission medium.For this reason, can minor amounts of copolymerized acrylic acid, hydroxyethyl methacrylate, GMA etc. have the monomer of functional group.Through composition and the ratio of regulating them, can change cementability, coherency, tackiness etc. easily.Object lesson as the monomer with functional group has acrylic acid; The monocarboxylic acid of methacrylic acid etc.; Maleic acid (maleic acid); Fumaric acid (fumaric acid); Cis-methyl-butene diacid (citraconic acid); Glutaconic acid; Methylene succinic acid polybasic carboxylic acids such as (itaconic acids) and their acid anhydrides etc. contain the monomer of carboxyl; (methyl) acrylic acid 2-hydroxy propyl ester; (methyl) acrylic acid 3-chloro-2 hydroxy propyl esters; Diglycol monotertiary (methyl) acrylic ester; N hydroxymethyl acrylamide; N-methylol methacrylamide etc. contains the monomer of hydroxyl; And dimethyl amino ethyl methacrylate, tert-butyl group amino-ethyl methacrylate, acrylic amide etc. contain amino monomer.
Have in the acrylic acid adhesives that to make the latex of water as solvent during fabrication be adhesives; It is adhesives that solvent is with an organic solvent arranged, and in the present invention, is that adhesives is advisable to use solvent, and this is to have excellent water-resistance and can form transparent adhesives overlay film because solvent is an adhesives.Solvent be adhesives be through, for example in aromatic hydrocarbons such as toluene, xylene; Or in the organic solvent of ketones such as ester classes such as ethyl acetate, butyl acetate and MEK, methyl isobutyl ketone, cyclohexane etc.; Make monomer carry out free radical polymerization, or under the situation that emulsifying agent exists, make the emulsified water dispersed system of monomer carry out emulsion polymerization and synthesize.
For the optics union piece, importantly light is through connecting portion, and therefore, the acrylic acid series adhesives must be transparent excellent material, and employed wavelength is that visible light and the light transmission in the near infrared field are with 85% or be advisable more than it.The acrylic acid series bonding agent is the material that can be prone to draw the transparency through adjustment crosslinking chemical or hardening agent.Even more ideal is, in employed wavelength, with light transmission be 90% or wavelength more than it be advisable.
The acrylic acid series adhesives; Not only good but also water tolerance, resistance to chemical reagents are also very good to glass or plastics driving fit; Make it between two optical transmission mediums or in the optical connecting structure between optical transmission medium and the optical element, can keep the driving fit of connecting portion and can keep stable connection status all the time.Also have,, can under common outside air temperature environment, use owing in 0 ℃～80 ℃ temperature range, have good bonding force.Also have, because against weather is also very good, being difficult for taking place rubber is incident uv degradation phenomenon, and therefore, in use non-sclerous also not flavescence can be peeled off from the lining body well.In addition, has advantages of cheap price.
The solid-state cementability link that uses in the present invention; Can be laminar cementability link, and also can be under static state not flow, keep the shape of stipulating and the cementability link that freely is out of shape above-mentioned adhesives filmization.In the present invention, when solid-state cementability link is a laminar cementability when connecting material, its shape is not done special qualification, and environment around the portion of being connected or product specification are suitably selected to get final product.For example, can have shapes such as circle, ellipse, quadrilateral, triangle.Also have,, will narrate in the back about the size of laminar link.
Be used for solid-state cementability link of the present invention, be necessary to have the refractive index scalability between the optical transmission medium and between optical transmission medium and optical element.Refractive index scalability in this case is meant, the refractive index of cementability link and optical transmission medium and with the degree of approximation of the refractive index of optical element.The refractive index that is used for cementability link of the present invention; As long as it is close with the refractive index of optical transmission medium and optical element; Then do not do special qualification, and consider that from the transmission loss aspect that causes by avoiding Fresnel reflection the difference of those refractive indexes is to be advisable with interior ± 0.1; With ± 0.05 with interior be preferably.Have, when the difference of the refractive index of optical transmission medium and optical element was big, the refractive index of the mean value of the refractive index of optical transmission medium and optical element and cementability union piece was to be advisable in above-mentioned scope again.
In optical connecting parts of the present invention; Between the end face of optical transmission medium or the thickness of the cementability link of between the end face of optical transmission medium and optical element, getting involved; Though the squeeze pressure when depending on butt joint; And it is desirable to 50 μ m or below it, better is 20 μ m or below it.If it is bigger than 50 μ m to dock later thickness, then light loss increases because the interval of the optical transmission medium that has docked is excessive, so be not suitable for doing the syndeton that light transmission is used sometimes.This situation is also identical between optical transmission medium and optical element.
The replacing of cementability link for example gets final product when its surface attachment has dust.Also have, in order to prevent that foreign matter from sneaking into, can paste diaphragm before changing in the one side of cementability link or on the two sides.Have again; Through the optical transmission medium leading section being aimed at the extruding of cementability link or being wiped and rub several times; Make and change station connecing property link after being attached on the adhesives attached to the foreign matter on the optical transmission medium end or dust, then also can be used as the cleaning means of optical transmission medium and utilize.
The present invention has following effect.
In optical connecting structure of the present invention,, therefore, simple in structure and do not produce light and reflect because solid-state cementability link is single layer structure.Also have, can know from aqueous refractive index adjustment agent, immerse the hole portion of porous optical fiber and the harmful effect that thus optical fiber transmission property is brought about refractive index adjustment agent, be admissible anything but in the cementability link.Also have,, therefore, be difficult for occurring in trickling diffusion around the connecting portion and the pollution or the dust that cause adhere to, thereby improve operability because the cementability link is solid-state.Also have, owing to can make it only driving fit on the optical transmission medium end face, therefore, around not polluting, not by ambient contamination yet.Have again, be used for solid-state cementability link of the present invention, owing to the end face that sticks on optical transmission medium through contact; Therefore; Need not newly to establish the special supporting mechanism or the works of protection cementability link, just can support, can realize save spaceization with simple support component.Also have, because solid-state cementability link freely carries out internal modification, therefore; Air is difficult for getting between the optical transmission medium end; Need not grinding step, just can connect, and can repeatedly repeat the optics connection according to the restoring force of cementability link with low loss.
Also have, when solid-state cementability connection material is laminar, can makes fiber end face interval each other even and narrow, thereby can reduce light loss.Also have, can make it the direction of principal axis extension edge that the edge optical transmission medium and be deformed into waveform shape from flat shape, thereby on optical transmission medium, be difficult for producing excessive squeeze pressure, optical transmission medium can be damaged.The connection of multi-core fiber band has, even also can connect simply again.Be cementability link each bar optical fiber, be out of shape that therefore, even in the uneven occasion of the overhang of optical fiber, optical fiber is not damaged yet, can carry out stable optics and connect according to butt joint for many optical fiber.Also have, when lens or light filter are connected with optical fiber, owing to can make it driving fit with the area of minimum, thereby can easyly peel off the cementability link, the raising operability.Also have, when the supported member supporting of cementitious material,, just can change the cementability link easily, can significantly improve operation property as long as when the loading and unloading cementability connects material, move support component.
According to optical connection method of the present invention, only, just can make the cementability link easily attached on the fiber end face through the relatively moving of optical fiber, need not to use complicacy and the equipment of high price, and the environmental baseline need not strictly set manufacturing the time.
Description of drawings
Fig. 1 is the vertical view of the ground instance of expression optical connecting structure of the present invention.
Fig. 2 is the vertical view of an example of expression optical connecting structure of the present invention.
Fig. 3 is the vertical view of another example of expression optical connecting structure of the present invention.
Fig. 4 is in optical connecting structure of the present invention, with the vertical view of applying position from seeing perpendicular to the direction of fiber axis of optical fiber and laminar cementability link.
Fig. 5 (a)～(e) is the vertical view expression state that the laminar cementability link of different shape sticked on fiber end face, that see from fiber axis direction; Fig. 5 (f) is the vertical view when fiber end face is provided with the cementability link only.
Fig. 6 be expression be used for optical connecting structure of the present invention, circumference is by the stereographic map of the state of various support member supports or vertical view.
Fig. 7 is that the side sectional view that connects with example of arrangement part, optical connecting structure of the present invention has been used in expression.
Fig. 8 is the vertical view that expression has connected example optical fiber and optical element, optical connecting structure of the present invention.
The laminar cementability link of Fig. 9 expression use is made, the vertical view of other basic example of optical connecting structure of the present invention.
Figure 10 is the process chart of an example that is used to form method for treating end face optical connecting structure, optical transmission medium of the present invention of Fig. 9.
Figure 11 is the process chart of another example that is used to form method for treating end face optical connecting structure, optical transmission medium of the present invention of Fig. 9.
Figure 12 is the process chart of a comparatively desirable example of explanation making optical connecting structure of the present invention.
Figure 13 is the process chart that is used to make an example of method for treating end face optical connecting structure of the present invention, optical transmission medium.
Figure 14 is the process chart that is used to make an example of method for treating end face optical connecting structure of the present invention, optical transmission medium.
Figure 15 is the process chart that is used to make an example of method for treating end face optical connecting structure of the present invention, optical transmission medium.
Figure 16 is the cut-open view along the incision of A-A line of Figure 15.
Figure 17 is the process chart that is used to form example optical connecting structure of the present invention, optical connection method.
Figure 18 is the outboard profile that has possessed the MPO latch of the MT aglet that connects optical fiber.
Figure 19 is the stereographic maps of the MPO type joints of optical fibre with an example of adapter.
Figure 20 is the stereographic maps of the MPO type joints of optical fibre with another example of adapter.
Figure 21 is the cut-open view of pattern that is applicable to the adapter of the FC type joints of optical fibre.
Figure 22 (a) supports the vertical view that cementability connects the support component of material; (b) be the stereographic map of the support component of key diagram (a) state when being installed in the open sleeve.
Figure 23 is the cut-open view that the situation the when open sleeve of using Figure 22 (b) has been docked aglet is described.
Figure 24 is the process chart that forms an example of optical connecting structure of the present invention.
Figure 25 is the constitutive requirements that constitute optical connecting structure of the present invention, is the figure of another example of expression arrangement part.
Figure 26 is the front elevation that is used to support the cementability link of Free Transform.
Figure 27 is the stereographic map that constitutes the constitutive requirements of optical connecting structure of the present invention.
Figure 28 is the cut-open view that the cementability link of explanation Free Transform is supported in the state on the support component.
Figure 29 is the process chart that forms an example of optical connecting structure of the present invention.
Figure 30 is the key diagram that is used to explain bonding assay method of keeping at a distance.
Figure 31 is the stereographic map of Figure 30 (a).
Figure 32 is the part expanded view of Figure 30 (a).
Figure 33 is the process chart that forms the optical connecting structure of embodiment 1.
Figure 34 is the vertical view of the optical connecting structure of expression embodiment 3.
Figure 35 is the process chart that forms the optical connecting structure of embodiment 4.
Figure 36 is the process chart that the end face of illustrative embodiment 5 is handled.
Figure 37 is that explanation is used for the figure of the connection of embodiment 5 with arrangement part, wherein, (a) is outboard profile, (b) is the sectional view that cuts along the B-B line.
Figure 38 is the process chart that forms the optical connecting structure of embodiment 7.
Figure 39 is the process chart that forms the optical connecting structure of embodiment 8.
Figure 40 (a) is the figure of the constitutive requirements of the expression joints of optical fibre; (b) be the figure of expression connection status.
Figure 41 is the process chart that forms the optical connecting structure of embodiment 9.
Figure 42 is the stereographic map of constitutive requirements of the optical connecting structure of expression embodiment 10.
Figure 43 is the figure of the optical connecting structure of illustrative embodiment 10.
Figure 44 is the process chart that forms the optical connecting structure of embodiment 11.
Figure 45 is the front elevation of guiding bolt support component that is used for the optical connecting structure of Figure 44.
Figure 46 is the process chart that forms the optical connecting structure of embodiment 12.
Figure 47 is the process chart that forms the optical connecting structure of embodiment 14 and 15.
Figure 48 is the process chart that forms the optical connecting structure of embodiment 17.
Among the figure:
10 (a, b) ... Optical fiber, 11 ... Optical fiber (core) center, 12 ... Covering, 13 ... Core; 15 (a, b) ... The fibre ribbon center line, 17 ... The right cylinder lens, 19 ... Optical lens, 20 ... Cementability connects material; 21 ... Laminar cementability connects material, 25 ... Cementability connects material, 31,32,34 ... Support component, 40,41,42,43,44,45,46 ... Arrangement part (connect and use arrangement part); 47 (a, b) ... The guiding bolt, 49 ... Open sleeve, 50 ... Adapter, 51 ... The MPO adapter; 61,62 ... End face is handled and is used parts, 71 (a, b) ... The MPO latch, 72 ... The FC latch; 75 (a, b) ... The MT aglet, 76 ... FC aglet web member, 80 ... Substrate (glass substrate).
Embodiment
Secondly, with reference to description of drawings optical connecting structure of the present invention and optical connection method.At first, the situation about solid-state cementability link is laminar connection material describes in conjunction with Fig. 1～Figure 23.
Fig. 1 is that expression uses laminar cementability to connect the vertical view of ground instance material, optical connecting structure of the present invention, is using optical fiber as optical transmission medium.In Fig. 1, laminar cementability link 21 is with the state of fitting being connected between the end face between optical fiber 10a and optical fiber 10b.Article two, optical fiber 10a and optical fiber 10b, the laminar cementability link 21 of sandwich and docking, those optical fiber constitute optics connection structure connecting thus.Have, two optical fiber 10a, 10b coat in from front end to tens of mm scopes and are removed and front end is cut again.
The end face of optical transmission medium each other or optical transmission medium and optical element carry out the laminar cementability link of optics before being connected thickness t in the scope of 1 μ m≤t≤150 μ m, to be advisable.If the thickness of cementability link is thinner than 1 μ m, the very difficulty that operates, and can't keep flexibility, thereby cause that through extruding optical transmission medium and the damaged possibility of optical element greatly improve; Conversely; If its thickness is more than the 150 μ m; Even under the situation that makes the distortion of cementability link through the optical transmission medium of forcing into submission, owing to too open greatly between the optical transmission medium end face or the interval between optical transmission medium and the optical element, so that light loss greatly increases.So, comparatively ideally be 2.5 μ m≤t≤100 μ m; Better is that 5 μ m≤t≤50 μ m especially it is desirable to, 5 μ≤t≤30 μ m.
Also have, be used for laminar cementability link of the present invention and constitute by single layer." single layer " among the present invention is meant that the interface that is joined by same material not as 2 layers, 3-tier architecture does not exist in laminar cementability link, and is not precluded within the series of mixing equably in the optical wavelength order.Be used for laminar cementability link of the present invention and have the extremely simple structure that has cementability and form as described above by single layer.Through using the laminar cementability link of this single layer structure, can under the situation that does not produce the light reflection, connect, therefore can hang down loss and connect.Also have,, also can not bring any influence laminar cementability link even jagged at fiber end face.Have again,, can fit easily at the end face of two optical fiber of butt joint because the surface has wetting state, and through its bonding force can keep and optical fiber between close and property.Owing to have the refractive index scalability, therefore, can carry out good optical and connect simultaneously.Moreover, because laminar cementability link has wetting state and bonding force on its surface, therefore when butt joint optical fiber, need not apply excessive squeeze pressure, thereby not have the danger of optical fiber bending or breach.Also have, because laminar cementability link has the repetition fissility as the characteristic of adhesives, therefore, even repeatedly load and unload also reusable.
Fig. 2 when having used laminar cementability link, the vertical view of another example of optical connecting structure of the present invention; Expression optical fiber 10a docks with clipping the laminar cementability link 21 that possesses flexibility being connected of optical fiber 10b between the end face; Thus, the state of laminar cementability link 21 distortion.As stated, have the laminar cementability link 21 of flexibility, even its thickness is when thick to a certain degree, also can be between two optical fiber through internal modification make two optical fiber each other near.Therefore, can increase the thickness of laminar cementability link, it is very simple that its operation becomes.Also have; Even the angular deflection or the warpage of two fiber end faces that docked are because of the laminar cementability link limit driving fit end surface side distortion to optical fiber, therefore; Air is not easy to get into the end face of optical fiber, need not can realize that also the optics of low loss connects by high-precision grinding technique.Also have, the bonding force through laminar cementability link is had even vibration or thermal deformation take place optical fiber, also can stably connect optical fiber.Have, laminar cementability link because its surface has flexibility, does not therefore produce end face damage when butt joint again, and the operability when optics connects is very good.Further, laminar cementability link can restore to the original state according to its flexibility, therefore, can repeatedly use laminar link to repeat the dismounting of optical fiber from the optical connecting structure.
Fig. 3 is illustrated in the vertical view of another example when having used laminar cementability link, optical connecting structure of the present invention.In this figure, the two ends of laminar cementability link 21 are by other not shown component parts fixed positions.This optical connecting structure forms through following step.At first removing the end coats; With the optical fiber 10a, 10b and the laminar cementability link 21 that have cut by certain arranged spaced; The optical fiber 10a of one side is moved till laminar cementability link up to its end face driving fit, and further move till the optical fiber 10b of another side up to driving fit on deformed foil shape cementability link limit, limit.Thus, form the optical connecting structure that optical fiber 10a, 10b are mechanically connected by optics.In this case; Laminar cementability link distortion, with respect to the endface position of the laminar cementability link before the butt joint, the position of the fiber end face after the butt joint is different; Thereby laminar cementability link 21 that kind as shown in Figure 3, its shape is deformed into wavy by tabular.
Under above-mentioned situation, laminar cementability link edge the direction of principal axis extension edge distortion of optical fiber, thereby optical fiber is difficult for producing excessive squeeze pressure, can prevent that optical fiber is damaged.Also have,, aspect practical, can form the optical connecting structure that has more reliability because the optical fiber of a fixing side moves the optical fiber that kind as described above of opposite side, thereby need not need high-precision optical fiber contraposition.Also have, under the situation of having removed the optics connection, because thin slice property cementability link has flexibility, the shape before shape is also recovered to be out of shape, reusable same laminar cementability link.Therefore, as long as have certain interval or space in connected fiber end face neighboring area, then since laminar cementability link can the limit flexibly extension edge be deformed into waveform shape from flat shape, therefore, can repeat the loading and unloading of optical fiber.Have, distortion in this case is meant the originally extension edge distortion at one's side of laminar link again, and that kind as shown in Figure 2, is retracted like recessed and is out of shape and also can to inside.
Fig. 4 is in optical connecting structure of the present invention, with optical fiber 10 connecting portion with laminar cementability link 21, from the vertical view of seeing perpendicular to the direction of the axle of optical fiber.In Fig. 4, D be from the center 11 of the end face 10c of laminar cementability link 21 contacted optical transmission mediums (optical fiber 10) minimum value and value to the circumference 22 of laminar cementability link, R is the radius of optical transmission medium.For making the such distortion as described above of laminar cementability link, between D value and the R value, be advisable with the relation that satisfies R＜D≤60R.
Fig. 5 (a)～(e) is the figure that the D value to the laminar cementability link 21 of different shape describes, and is the vertical view of seeing from fiber axis direction.Also have, Fig. 5 (f) is the vertical view of the state when on the explanation fiber end face of narrating in the back the cementability link being set.In 5 (a)～(e), 10a representes the end face of optical transmission medium (optical fiber 10) and laminar cementability link 21 contacted optical transmission mediums; 11 its end face centers of expression; The circumference of the laminar cementability link 21 of 22 expressions.Such shown in Fig. 5 (e), when using the optical transmission medium of a plurality of cores, D depends on contact position and the bee-line between the fiber optic hub of the end of near optical transmission medium.But when fixing laminar cementability link during by the support member supports of back narration or with some fixed part, the D value refer to support component or fixed part, except contact portion with the circumference of exterior portions and the bee-line between the fiber optic hub.
Shown in Fig. 5 (a)～(e), when the periphery of laminar cementability link is had certain space in vain, even in the driving fit of laminar cementability link also have degree of freedom under the state of optical fiber, can flexibly be out of shape.When D value during greater than 60R, because optical fiber ejects, take place loosely or wrinkling on the whole, thus, laminar cementability link might occur breaking and can't stably connect.Also have, because when pulling down optical fiber, the restoring force of laminar cementability link weakens, and therefore, can't re-use.Also have, when D equates with R, though laminar cementability link driving fit when butt joint optical fiber can't make laminar cementability link be deformed into wavy.Have again,,, thereby contact the light loss increase with air because laminar cementability link is in optical fiber surface not exclusively driving fit on the whole as D during less than R.Also have, the scope of D is more suitable to satisfy 2R≤D≤30R.Have again, when the shape of optical transmission medium is not the such four prisms cylinder of the such right cylinder of optical fiber but waveguide,, can cornerwise half length of the rectangle of waveguide be used as the R value as the R value.
In the present invention; The method that is used for fixing laminar cementability link is not done special qualification, and under the situation of Fig. 1 optical connecting structure extremely shown in Figure 3, laminar cementability link is used for suitable with fixing all the time state; It is desirable to the support component of expression below for example using.Fig. 6 is that the circumference of the expression laminar cementability link that is used for optical connecting structure of the present invention is by the stereographic map of the state of various support member supports (Fig. 6 (a)～(d)) and vertical view (Fig. 6 (e) and (f)).Support component 31 is can control laminar cementability link 21; And can fix its two ends at least and be advisable; Its shape can be the simple and easy shape that kind shown in Fig. 6 (a) has been controlled two ends; Also can be that kind shown in Fig. 6 (b) has been fixed the コ word shape of three directions, and if can stablize control direction up and down, the window shape shown in Fig. 6 (c)～(g), then even more ideal.Also have, also can that kind shown in Fig. 6 (e), Fig. 6 (f) maintaining part 311 be set so that keep support component.Have under the situation of this maintaining part, in having used the optical connecting structure of the present invention of the open sleeve of narration at the back, can the limit control the maintaining part limit support component is inserted in the open sleeve, and can be arranged near the central authorities.
More have, also do not do qualification for the components number that constitutes support component, such shown in Fig. 6 (g) in order to realize stabilization, can be the structure of clamping laminar cementability parts through support component 31a, 31b.Have again, do not do special qualification, can be used in combination environment and product specification and suitably select to use for the size of support component.Also have, about the material of support component, metal species, plastic material, elastomeric material etc. can suitably be selected to use.Through with the fixing laminar cementability link of support component, laminar cementability link flexibly is out of shape.Also have, laminar cementability link, in operation is set, needn't can be operated by Contact Thin sheet cementability link fixedly the time by the frame-like support component, therefore, can prevent adhering to of pollution that laminar cementability link is surperficial or dust etc.Therefore, also can carry out the replacing of laminar cementability link easily.
To be expression use to connect the side sectional view with an example of arrangement part, optical connecting structure of the present invention as the contraposition parts to Fig. 7.Its structure is made up of with arrangement part 40 and the laminar cementability link 21 that supported by support component 31 two optical fiber 10a, 10b, connection.Connect with arrangement part 40, its central part has groove 401, clips groove 401 both sides and has a pair of through hole 402a, the 402b that is used to insert optical fiber bare wire or fiber optic hub line.Optical connecting structure shown in Figure 7; Vertically laminar cementability link 21 is inserted into above-mentioned groove 401 through relative through hole; Then, insert with front end remove the fiber optic hub line 10a that coated and cut, 10b and with each fiber end face to laminar cementability link 21 extruding and form.In this case, use arrangement part, can carry out the contraposition between the optical fiber simply through using to connect.Also have,, laminar cementability link is contained in connects, can improve operability and prevent the dust adhesion effect with in the arrangement part through laminar cementability link is inserted in the groove that connects with arrangement part.
According to the contraposition mechanism and the method that connect with the optical fiber of arrangement part,, do not do special qualification as for above-mentioned as long as fiber end face can contraposition on same.That kind as shown in Figure 7 can use through hole to insert optical fiber, or places optical fiber at V-type groove etc. above the arrangement groove.Also have, do not do special qualification with the size of arrangement part,, also do not do special qualification as for its shape as long as suitably select to use according to the kind or the bar number of optical fiber as for connecting.For example can enumerate semicylinder shape, rectangular-shaped etc.More have, the structure of through hole and shape are not done special qualification yet, use V-type groove substrate, for example flat boards such as glass are pressed into from the top, and be passable as through hole by its groove that fences up yet, and in this case, can carry out the placement of optical fiber from top.Also have, for example also can be used as above-mentioned connection and use with arrangement part as original parts such as MT aglet connectors.Having again,, and it is desirable to, for example use as the little material of polyacetal resin friction factor or be difficult for the material of satisfactory mechanical properties such as thermal deformation though also do not do special qualification with the material of arrangement part to constitute connecting; Corrosion-resistant materials such as stainless steel, trifluoro-ethylene resin, TFE or for chemical substance or the little material of solvent reaction property.
Also have, above-mentioned connection can be made from multiple components with arrangement part, for example can be to have the parts of the groove that inserts the cementability link and have the structure that the unit construction of through hole forms.Also have, can be through the guiding keyhole being set on two arrangement parts of through hole and inserting the guiding bolt having, make these arrangement parts each other can be correctly to upper.Have, the placement of optical fiber for ease can impose cone shape processing to the through hole front end again.Can insert this laminar cementability link and fixing with the cementability link on the arrangement part with groove as long as be arranged at above-mentioned connection, not do special qualification as for its shape or position and quantity.
Fig. 8 is the vertical view that expression has connected example optical fiber and optical element, optical connecting structure of the present invention.Under the situation of this figure; Optical connecting structure; Can be through laminar link 21 and optical fiber 10 and optical lens 19 be provided with by certain interval; And moving fiber 10 is after its end face driving fit is till the laminar cementability link 21, be moved further optical fiber 10 up to laminar cementability link 21 distortion and driving fit till the optical lens 19 and form.As shown in Figure 8, even like thickness from central portion to the outer peripheral portion stage or the convex optical element of attenuation continuously, also can carry out optics according to the present invention simply and connect.Also have,, can under the state of having fixed optical element, keep stable and connect according to said method.Have, the cementability link has at least the core driving fit of optical fiber on optical lens, to get final product again, thereby, can from optical lens, peel the cementability link simply, can prevent that optical lens is contaminated.
Secondly, describe about the optical connecting structure that uses laminar cementability link to carry out that fiber end face is handled and only to be provided with the cementability link at end face.Fig. 9 to Figure 17 is relevant with this situation.
The laminar cementability link of Fig. 9 expression use is made, the vertical view of a basic example of optical connecting structure of the present invention.Promptly 2 optical fiber 10a and 10b make cementability link 20 between middle and dock the optical texture that is formed by connecting with forming fiber optics thus.Have, two optical fiber are removed in from front end to number 10mm scopes and coat and front end is cut again.Under the situation of this figure, laminar cementability link only is arranged on the end face of optical fiber through end logos back narration, shown in Figure 10 and Figure 11.
That kind as shown in Figure 9, with the cementability link only under the situation that end face is provided with, to satisfy D 1>=r and D 2≤1.5R is advisable.Fig. 5 (f) is the figure of this situation of explanation, and to the distance of the circumference of cementability link 20, R represents the radius of optical fiber from the center of the core of the optical fiber 10 be made up of core 13 and covering 12 for D representative, and r represents the radius of core.In the present invention, it is desirable to, from the center 11 of the core of optical fiber 10 to the minimum value D of the distance B of the circumference of cementability link 20 1For the radius r of core or more than it and maximal value D 2For 1.5 times of fiber radius R or below it.
Under above-mentioned situation; Also can cover the region-wide of core 13 through the shared scope of cementability link being controlled at minimum; Maximum do not exceed 1.5 times and on the inexcessive degree of exposing yet, make link only at the light transmission end face or near end face, exist, thereby can prevent to pollute with cementability from fiber end face; And dust is difficult for adhering to the raising operability.Also have, need not to take to keep the special organization of cementability link or newly establish works, can become extremely simple syndeton, and can realize save spaceization.Work as D 1During less than the radius r of the core of optical fiber, there is the discontiguous part of cementability link in the part of the core of transmission light, in its part generation light loss.Also have, work as D 2During greater than 1.5R; The cementability link increases at the part proportion of removing fiber end face; Thereby the dust around taking place adheres to or cementability link and the contacted danger of other parts easily, and therefore, appearance sometimes can't be kept the situation of good switching performance.Have again,, for making the squeeze pressure that acts on the cementability link even, and, it is desirable to for the cementability link is not extruded from fiber end face when optical fiber applies squeeze pressure, haply, D 1=D 2Even more ideal is D 1=D 2=r.
Under above-mentioned situation, because the cementability link only is arranged on the end face of optical fiber of butt joint, its size and fibre diameter are roughly the same, thereby the occupied area of cementability link is reduced to greatest extent, can be designed to very simply structure.Also have, because contact, thereby not contaminated with on every side rubbish or dust, again because of not flowing out, thereby around not polluting.
Figure 10 and Figure 11 are the process charts of an example that is used to form method for treating end face optical connecting structure, optical transmission medium of the present invention of Fig. 9, are again the figure that expression only is fitted in laminar cementability link the ground instance of end face.Under the situation of Figure 10, use optical fiber as optical transmission medium.In Figure 10, the side of removing the optical fiber 10 that coats and cut in the end is provided with laminar cementability link 21.Laminar cementability link two ends are fixed by other not shown suitable parts.At first; Optical fiber 10 is relatively moved in the face of laminar cementability link; Then; Through optical fiber is axially moved, the part of laminar cementability link is cut open being fitted under the state of fiber end face, can cementability link 20 be set at fiber end face.
Also have, in Figure 11, fiber facet is relatively moved to laminar cementability link.Then, through making optical fiber along moving in the other direction, utilize the cementability of cementability link, the part of laminar cementability link is cut open being fitted under the state of fiber end face, can cementability link 20 be set at fiber end face.According to this method, owing to more can dwindle moving range than method shown in Figure 10, thereby have the advantage that can more economize the making space.
Figure 12 is the process chart of a comparatively desirable example of explanation making optical connecting structure of the present invention, and expression is used and connected the situation that forms optical connecting structure with arrangement part.Promptly as above-mentioned Figure 10 and shown in Figure 11; Front end is removed covering cutting and inserted in the through hole 411 of connection with arrangement part 41 with through hole (Figure 12 (a)) at the optical fiber 10a that its end face is fitted with cementability link 20; Then, the through hole of one side insertion front end is removed the optical fiber 10b of covering cutting and its fiber end face is shifted onto the cementability link and carried out optics connection (Figure 12 (b)) from the opposite.In the present invention, the cementability link is covered with fiber end face in connecting required Min. scope, therefore, also can use even have the arrangement part of narrow through hole.Also have,, can freely carry out the moving axially of optical fiber because need not be used to keep the special parts of cementability link.So, when the actual installation optical element, under the state of still keeping connection, can freely regulate the position of optical fiber.Also have, connect with arrangement part and can the cementability link be contained in connection with within the arrangement part, can improve operability and prevent the dust effect through using.
Figure 13 is the process chart that is used to make other example of method for treating end face optical connecting structure of the present invention, optical transmission medium, and expression is carried out the situation that a plurality of fiber end faces are handled from 1 laminar cementability link.Be that kind shown in figure 13,, move, make the end face of optical fiber 101～104 and contacted (Figure 13 (a)) by the laminar link 21 of not shown support member supports along the direction of principal axis of optical fiber through front end being removed the optical fiber core 15 of covering and cutting.And, further moving forward through making it, the part of laminar cementability link is cut open being fitted under the state of fiber end face, can cementability link 201～204 (Figure 13 (b)) once be set at optical fiber 101～104 end faces.In this case, even the cutting of the optical fiber front end of optical fiber core 15 has deviation not influenced by it, therefore, but on each optical fiber same driving fit link.Have, though show 4 optical fiber in the drawings, its number is not special to be limited again.
Figure 14 is the process chart that is used to make an example of method for treating end face optical connecting structure of the present invention, optical transmission medium, is expressed as end face and handles and use the end face of support slice shape cementability link to handle the situation with parts.In the drawings, end face is handled has a through hole 611 with parts 61, can insert optical fibre core or optical fiber bare wire in the through hole, optical fiber processing with the one side of parts on the covering through hole be pasted with laminar cementability link 21.Till the end face that is inserted into (Figure 14 (a)) in the through hole 611 and makes it to move to laminar cementability link and optical fiber 10 through the optical fiber 10 of front end being removed covering and cutting contacts with each other (Figure 14 (b)); Be moved further optical fiber and make it to run through through hole; A part that makes laminar cementability link is cut open being fitted under the state of fiber end face, can be at the fiber end face cementability link 20 (Figure 14 (c)) of fitting.Under the situation in the figure, handle with parts 61, can combine the shape of optical fiber to carry out the incision of laminar cementability link, therefore, can handle with good stock utilization through the end face that support slice shape cementability link 21 is set.Also have,, the cementability link is adhered to reliably even have the end face of the optical fiber of certain angle.
Figure 15 is the process chart that is used to make an example of method for treating end face optical connecting structure of the present invention, optical transmission medium, and expression uses the end face of support slice shape cementability link to handle the situation with parts.Also have, Figure 16 is the cut-open view along the A-A line of Figure 15.Under the situation of these figure, end face is handled with parts 62, possess on the V-shape with guiding fiber is arranged the lower basal plate 622 of groove 621, to place as the structure of the upper flat plate 623 of glass etc., and, form through hole by arrangement groove 621 and upper flat plate 623.On end face is handled with an end of parts, fit and be fixed with laminar cementability link 21 (Figure 15 (a)).When using this end face processing to use parts, can optical fiber 10 placement in arranging groove be finished is placed on (Figure 15 (a)) on the lower basal plate 622 with upper flat plate 623.And; Axially move along arranging groove through being placed on the optical fiber of arranging in the groove 10; Make its end face touch laminar cementability link 21 (Figure 15 (b)), make it further to move forward, can make cementability link 20 be fitted in (Figure 15 (c)) on its end face.Also have, run through after the through hole, through unloading upper flat plate 623, can be with the optical fiber that is provided with the cementability link 10 from top easily take out (Figure 15 (d)).
In the present invention; As Figure 14 and shown in Figure 15; End face using support slice shape cementability link is handled under the situation of carrying out the end face processing with parts; Between the optical fiber when forming optical connecting structure to method for position, as long as fiber end face on coaxial to upper, and do not do special qualification.Also have, above-mentioned end face is handled with the size of parts or shape and neither be limited especially, is to use and forms in above-mentioned illustrated in fig. 7 the connection with the same material of arrangement part.
Figure 17 is the process chart that is used to make example optical connecting structure of the present invention, optical connection method, and expression uses the end face of support slice shape cementability link to handle the situation with parts.In the drawings; Connect with arrangement part 40; Near the deep trouth 403 that central authorities, has support slice shape cementability link; And the both sides that clip its deep trouth have coaxial a pair of through hole 402a, 402b, when having the arranging functional of optical fiber, possess the function (Figure 17 (a)) of support slice shape cementability link.At first, laminar cementability link 21 relative through holes vertically are inserted in the deep trouth 403 (Figure 17 (b)).Secondly, insert through hole 402a, in through hole, make fiber end face Contact Thin sheet material, be moved further optical fiber, make it to be inserted in the opposing party's through hole 402b removing the optical fiber 10a that coats and cut.Thus, the part of laminar cementability link is cut open, and cementability link 20 fits on the end of optical fiber (Figure 17 (c)).Secondly, from the other optical fiber 10b of through hole insertion of an other side, and make it to move to driving fit (Figure 17 (d)) till the cementability link.Under the situation shown in this figure, the position of the tie point of optical fiber can freely be set, thereby operability and operation property significantly improve.
In the present invention, laminar cementability link can be installed in the adapter, also can be supported in support component and is installed in the open sleeve.Figure 18 to Figure 23 illustrates those situation.
Figure 18 is that expression possesses MPO latch 71a, the 71b that arranges and control the MT aglet of optical fiber, the figure of the state that connects through adapter 50.As adapter, for example can use Figure 19 and adapter shown in Figure 20.
Under the situation of Figure 19, in adapter, near the center of MT aglet butt joint, be provided with the laminar cementability link 21 of being controlled from above-below direction by suitable parts.Promptly through laminar cementability link 21 being set on a side 511 of the MPO adapter that separates into two halves and, preparing the adapter that the cementability link has been arranged in internal configurations with connections such as the opposing party's 512 usefulness screws.So, in case the link that is made up of adhesives in the adapter internal configurations in advance then can not take place from the adhering to of the pollution of surrounding environment or dust etc., and need not to place link at the aglet end face, operation property also improves, and is therefore more satisfactory.
Under the situation of Figure 20, MPO adapter 51 has the open groove 513 in top near the center of MT aglet butt joint.Insert the laminar cementability link of being controlled in this groove like the above-below direction among above-mentioned Fig. 6 (c).So, in case possess in adapter inside the mechanism that the cementability link that is supported in support component is installed is arranged, then the support component of support slice shape link is changed simply, raising operation property.Also have, on optics connected, an adapter can repeatedly use, thereby has economy.
Figure 21 is the side sectional view that the present invention is applicable to the adapter of the FC type joints of optical fibre.In Figure 21, open sleeve 49 is installed on adapter 52, near the center of open sleeve, be provided with laminar cementability link 21.As the cementability link, used before open sleeve is installed in adapter, pour into the film member that curable adhesives is solidified to form from the notch portion of open sleeve.So, laminar cementability link is arranged, link is placed on the end face of aglet reliably, improve operation property in case possess in the open sleeve in adapter in advance.
The mechanism that is used for fixing laminar cementability connecting portion; Can be as above-mentioned, to be fixed in the open sleeve etc. through curing; Do not do special qualification, and link is suitable under the state that is fixed, to be used for all the time, for example can use below shown in support component.
Figure 22 (a) representes that in the present invention laminar cementability connects materials for support in the figure of the state of support component, and support component 31 is being controlled the periphery of laminar cementability link 21 for to have the round of the cross sectional shape identical with aglet.Figure 22 (b) is the stereographic map of the state of explanation when being installed in the open sleeve by the laminar cementability link of the support member supports shown in Figure 22 (a).The laminar cementability link 21 opposed openings sleeves 49 that are supported in above-mentioned support component 31 are placed vertically, and the cylindrical shape push part of the internal diameter same diameter of utilization and open sleeve 91 pushes it in open sleeve, and be placed near the central authorities.Such as stated, through by the laminar cementability link of support member supports, can be installed in the aglet simply.Also have, the replacing of laminar cementability link through utilizing push part 91 to push support component later in the taking-up aglet, can be taken out in opening simply, and therefore, open sleeve or adapter can re-use same as before.
Figure 23 is the cut-open view that the situation when using above-mentioned open sleeve to dock aglet is described.That kind shown in figure 23 is inserted pair of metal hoop 75a, the 75b that is fixed with optical fiber 10a, 10b to the open sleeve that the laminar cementability link 21 that is supported by support component 31 has been installed 49.These aglets, its end face is convex, thereby when optics connects, produces the gap between the protuberance of the aglet front end of its butt joint and the protuberance.For not hindering contacting between laminar cementability link 21 and the aglet end face, in the gap that support component 31 takes place, form optical connecting structure thus between aglet.
Secondly, explain that the cementability link is not a situation laminar but that be made up of the material that freely is out of shape.Figure 24 to Figure 29 is the figure that illustrates the sort of situation.
Figure 24 is to use freely the cementability link of distortion and forms the process chart of an example of optical connecting structure.Such shown in Figure 24 (a), the arrangement part 42 and the support component 34 that prepare a pair of optical fiber 10a, 10b and have the V-shape arrangement groove 421 of the del made.Support component 34 is cylindrical, and the peripheral part (part of periphery) in its underpart is provided with the solid-state cementability link 25 that has the refractive index scalability and freely be out of shape through applying.Also have, optical fiber 10a, 10b have the end and are removed the end face that has coated and be cut.Then, such shown in Figure 24 (b), be placed in the V-type groove 421 of arrangement part 42 from the top with a pair of optical fiber 10a, 10b, in this case, between optical fiber, can keep proper spacing ground to place.Then, such shown in Figure 24 (c), support component can be placed on support component 34 above the arrangement part 42 on ground between optical fiber 10a and optical fiber 10b, and make it temporary fixed by not shown adhesives.Thus, the cementability link 25 that is coated in the lower, outer perimeter portion of support component 34 is in the state that hangs down in the V-type groove 421.Then, such shown in Figure 24 (d), move two optical fiber 10a, 10b, make it butt joint below support component 34.Thus, the front end of optical fiber 10a, 10b contacts with cementability link 25, forms the cementability link through distortion and the optical connecting structure of the present invention between optical fiber 10a, 10b.Have again, such shown in Figure 24 (e), it is desirable to, optical fiber 10a, 10b are fixing by tabular compacting part 81a, 81b etc. from top.
Under above-mentioned situation, because cementability link 25 supported parts 34 support, therefore, operating personnel need not to contact cementability link 25 just can operate optical fiber 10a, 10b.Also have, because certain amount of bonding property link 25 is provided in the lower, outer perimeter portion of support component 34, only therefore mounting and connection parts 25 on the connection end face of optical fiber 10a, 10b, can not produce influences such as pollution or dust on every side to connecting portion.Also have,, can the optical axis of optical fiber 10a, 10b not caused that deviation ground carries out optics and connects owing to can on V-type groove 421, carry out contraposition.
Under above-mentioned situation, that kind shown in figure 25, arrangement part 42 along with arrange the direction that groove 421 intersects and can have V-type groove 422 than the depth as shallow of arrangement groove 421.Use in the time of should arranging groove, on V-type groove 422, can place the support component 34 that is supported with the cementability link, thus, the position of fixed support part 34 simply.
Be used to support the support component of the cementability link of distortion freely, its material and shape are not done special qualification.For example can use the support component 34 of shape such shown in Figure 26 (a)～(f).Promptly can use as bar-shaped (Figure 26 (a)), be provided with a protrusion 341 and become L font or T font (Figure 26 (b)), (Figure 26 (c)), be provided with (the support component of Figure 26 (d)～different shapes such as (Figure 26 (f)) that two protrusion 341a, 341b form.Also have, its cross sectional shape can be circular, oval or polygons such as triangle, quadrilateral.As material, metal species, category of glass, plastics class, rubber-like etc. are suitably selected to use to get final product.Have again, as Figure 26 (f), be provided with the support component of maintaining part 342a, 342b up, the operating efficiency when easy gripping support component and raising are installed.Have, above-mentioned lug boss when support component is placed into arrangement part, it is desirable to, and can be fitted to the lug boss that is arranged on the hole on the arrangement part again, to play the effect that makes the support component stabilization.
Figure 27 is to use the support component explanation shown in Figure 26 (e) to form the figure of optical connecting structure.Arrangement part 42 is provided with pair of holes 423a, the 423b of V-type groove 421 and both sides thereof, is keeping lug boss 341a, the 341b of the support component 34 of cementability link 25 can insert this hole 423a, 423b ground formation.Under the situation of this formation; Through each lug boss 341a, 341b are inserted into respectively in each hole 423a, the 423b; Support component 34 is placed on above the arrangement groove 421; The contraposition of support component 34 and arrangement part 42 can be carried out simply, and when optics connects, the position stability of support component 34 can be made.
Also have, position and the method to set up thereof on the support component that be set to as for the cementability link do not have any qualification, suitably selects use to get final product according to the character and the state of cementability link.For example; The position that is provided with about the cementability link; As Figure 28 (a), (d); It is region-wide or as Figure 28 (b), (c), (e) to be mounted in the peripheral part of support component 34, also can be mounted in the lower, outer perimeter portion of support component 34 etc., install and get final product according to the position of arranging groove, size.
About the method for cementability link is set on support component; For example can adopt with spraying plating or brush etc. to apply and the method for solidifying, make cementability link filmization and be wrapped in the periphery (like Figure 28 (d)) of support component or fit to the method (like Figure 28 (e)) of the part of periphery.
In optical connecting structure of the present invention, optical fiber 10a, 10b needn't just be formed by connecting under support component 34.For example, that kind shown in figure 29, the end face of optical fiber with the different position of the placement location of support component on had no relations by being connected also.Under situation shown in Figure 29; Optical fiber 10a, 10b are configured in the arrangement groove 421 (Figure 29 (a)) of arrangement part 42 and the optical fiber 10a in left side is moved to right-hand; Its end face is touched be arranged on the deformable cementability link 25 on the support component 34; Further optical fiber 10a is moved to right-hand, colliding with the end face of the optical fiber 10b in left side gets final product (Figure 29 (b)).Form state the of the present invention optical connecting structure between optical fiber 10a and 10b between of cementability link 25 thus with driving fit.Have again, such shown in Figure 29 (c) in this case, through compacting part 81 support component 34 is pressed downward to, but also fixed fiber 10a.
In the present invention,, do not do special qualification, select to get final product, do not do special qualification yet as for its shape according to the kind or the bar number of optical fiber as for the size of above-mentioned arrangement part 42.Also have, arrange the bar number of groove 421 and also select get final product according to the bar number of optical fiber, even many of optical fiber, the interval of arrangement groove 421 is also selected to get final product according to product specification aptly.Having, the cross sectional shape of arranging groove 421 is not done special qualification yet, except V-shape, also can be shapes such as ellipse, circle, rectangle.As V-type shape, rectangular shape, arrange slot space if near fiber end face, exist, then when cementability link 25 is connected through distortion; Because the material that exposes is being arranged the slot space intramedullary expansion; Therefore, shorten the distance between the optical fiber more, light loss also reduces.Also have, stablize because the cementability link in the region-wide driving fit of fiber end face, can make the optics of optical fiber connect.Especially the V-type groove makes optical fiber place convenient and makes it stabilization easily, is only structure therefore.Also have, also do not do special qualification, can use and the same arrangement part of above-mentioned arrangement part illustrated in fig. 7 about the material of arrangement part.
In the present invention, cementability link bonding kept at a distance with 10 μ m or is advisable more than it, and cementability link bonding to keep at a distance be the value of under 23 ± 1 ℃, the condition of humidity 45%, measuring as follows.
Figure 30 is the key diagram that is used to explain bonding assay method of keeping at a distance, and Figure 31 pastes the stereographic map of the MT aglet under the state of cementability link, and Figure 32 is the enlarged drawing of coupling part of the optical fiber of Figure 30.That kind shown in figure 30; On the end face of MT aglet 75a (that Bai Shan makes is made, 8 cores, material be PPS), will be provided with thickness and be 50 μ m adhesive linkage, thickness is that the plastic sheeting 91 (91a, 91b) of 100 μ m (be of a size of 0.5mm * 7mm) and stick on the upper and lower of through hole 751a, 751b respectively, and the middle ground that connects its two films has been pasted laminar link 21 (being of a size of 2mm * 3mm * thickness 25 μ m) (Figure 31).And the end face of MT aglet 75b and MT aglet 75a is provided with facing one another and makes the guiding bolt between the centre and contraposition, and the end face of MT aglet 75a and MT aglet 75b is arranged to 1mm at interval and is fixed (Figure 30 (a)).
Secondly; In the through hole of aglet 75a, insert front end and removed the optical fiber 10a (the covering external diameter is 125 μ m, single-mode fiber, Furukawa system) that coats and cut; Make the end face contact cementability link (Figure 30 (b)) of optical fiber, further fixed optical fiber 10a (Figure 30 (c)) in the position of stretching out 250 μ m from contact position.
In the through hole of the opposing party's MT aglet 75b, insert optical fiber 10b of the same race and the end face of optical fiber 10b is moved till contact cementability link.This contact position is made as initial point G.After till the end face distance of initial point G and optical fiber 10b is 10 μ m, further making optical fiber 10b move (along the direction of arrow), make optical fiber 10b under its state, keep for 2 seconds (Figure 30 (d)), (Figure 32 (a)).
Then, make optical fiber 10b slowly return (Figure 30 (e)) with the speed of 10 μ m/sec, up to optical fiber 10b is moved to till the cementability link peels off from core along the direction of arrow.Then, detect the cementability link from position that core peels off and the distance between the initial point G, with this distance H as bonding keeping at a distance (Figure 32 (b)).
Through embodiment optical connecting structure of the present invention and the optical connection method that makes it to form are described below, and the present invention is not limited only to this.
The making example 1 of laminar cementability link
By n-butyl acrylate/methacrylate/acrylic acid/2-hydroxyl-metacrylate multipolymer (in 100 parts of the 30% ethyl acetate solution of the acrylic resin of match ratio=82/15/2.7/0.3) form fusion 1.0 parts of Coronate L (the toluene diisocyanate adduct of Japanese polyurethane industry society system, trimethylolpropane) and mixing.With the acrylic acid series masking liquid that obtains, its dried thickness is coated on the one side of the dimethyl ester film that has been coated with film with becoming 100 μ m and has made acrylic acid adhesives tunic.During use, peel (laminar cementability link (1)) from dimethyl ester film.Have, carried out light transmission mensuration to the acrylic acid series adhesives with spectrophotometer this moment in the wavelength coverage of 1300～1320nm again, and the result is 93.5%.Also have, utilize Abbe refractometer to measure, the result is 1.465.
The making example 2 of laminar cementability link
The additive type silicone-based adhesives masking liquid of at first having prepared to form (being eastern レ ダ ウ コ one ニ Application グ (TORAYDOW, CORNING) society's goods) (with SD4590 as principal component, with BY24-741 and SRX212 silicone-based adhesives) as curing agent by SD4590/BY24-741/SRX212/ toluene (=100/1.0/0.9/50(weight, part).With this additive type silicone-based masking liquid, its dried thickness is coated on the one side of plastic sheeting that the thickness that has been coated with film is 100 μ m with becoming 50 μ m has made additive type adhesives tunic.During use, peel (laminar cementability link (2)) from plastic sheeting.
Embodiment 1
The laminar cementability link (1) that use obtains through said method, that kind shown in figure 33 has formed optical connecting structure.That at first utilizes optical microscope to make to have two arrangement part 43a, 43b (is of a size of 5mm * 10mm) V-type slot cross-section contraposition; Then leaving on the position of 0.2mm from the breach 801 that is arranged on the 0.05mm on the glass substrate 80; Make the contraposition of V-type end face, and arrangement part is fixed on the glass substrate 80 with bonding agent.Then, insert above-mentioned laminar link 21 in the breach of glass substrates and be located vertically on the glass substrate.Then, optical fiber 10a, 10b are configured in the V-type groove of both sides' arrangement part 43a, 43b.Used silica fibre heart yearn (Furukawa system, diameter are 250 μ m, single mode) as optical fiber, used with the optical fiber stripper will coat roughly remove about 25mm from the end and make the bare wire of optical fiber exposed, the optical fiber of optical fiber bare wire has been cut in the place of 10mm with the optical fiber cutter from the end.Optical fiber 10b is moved along the V-type groove is parallel; The limit with observation by light microscope limit moving fiber up to the end of optical fiber bare wire move to left V-type groove position substrate, suitable till after; With surface plate 85b and arrangement part 43b optical fiber 10b is sandwiched, with UV adhesive securement (Figure 33 (a)) on arrangement part.Then move the opposing party's optical fiber bare wire 10a up to its end face driving fit (Figure 33 (b)) till the laminar cementability link 21, further push optical connecting parts up to make optical fiber bare wire 10a driving fit at the laminar cementability link on its end face with till optical fiber 10b docks.The thickness of the laminar cementability link after the butt joint is 10 μ m, and R=62.5 μ m, D=1.5mm, D=24R are arranged again.Then, optical fiber 10a is sandwiched with surface plate 85a and arrangement part 43a, and with optical fiber stationary fixture 94 fixing (Figure 33 (c)).
Measure the optical fiber that has connected with the wavelength of 1300nm and connect loss result, for 0.2dB or below it; And measure reflection loss amount result, and be 50.3dB, shown the good optical characteristic.
Have, in-25 ℃～70 ℃ scopes, carried out temperature cycling test 500 times, light loss as a result changes for 0.2dB or below it, and has observed the cementability link after having broken away from the optics connection, and the result is no abnormal in appearance.
Embodiment 2
Use has formed optical connecting structure through the laminar cementability link (2) that said method obtains as embodiment 1.Measure the optical fiber that has connected and connect loss result,, shown the good optical characteristic for 0.4dB or below it.Also have; Above-mentioned optical connecting structure body 125 ± 2 ℃ of heat-resistance test (according to JIS C 0021) and temperature cycling tests of in-40 ℃～75 ℃ scopes, having carried out 500 times under the environment have been carried out being placed into; The change of light loss as a result is for 0.4dB or below it; And break off and observed the cementability link after optics connects, the result does not find to solidify or flavescence, can know as optical connecting parts and can fully re-use.
Embodiment 3
Figure 34 is the vertical view that expression connects the optical connecting structure of 4 core fibre belt carcass lines.To realizing that four optical fiber optics each other connects; Except use two 4 core fibre belt carcass line 15a (optical fiber in this belt carcass line is 101～104) and 15b and have two arrangement part 43a being fixed in four V-type grooves above the glass substrate 80, the 43b; Other and embodiment 1 have likewise carried out attended operation; Use a laminar cementability link 21, accomplished that simply the optics of four optical fiber connects.Also have, detect the length of fiber of having cut, had between four optical fiber bare wires as a result ± deviation about 10 μ m; And since laminar cementability link through softness distortion can driving fit, be fixed on each optical fiber; Therefore, the light loss change deviation between the optical fiber bare wire is also little, in 100 times loading and unloading test; On each bar heart yearn; The light loss change uses same laminar cementability link can keep stable output power all the time for 0.3dB or below it, can know as optical connecting parts and can fully use.
Embodiment 4
Figure 35 is the figure that expression connects the operation of optical fiber and right cylinder lens.In the same V-type groove that optical fiber bare wire 10 is arranged on the arrangement part 43 above the glass substrate 80 with embodiment 1.On the other hand; The right cylinder lens that right cylinder lens 17 (mflends society system, outer through being
Figure S200810124982XD00301
) penetrated into the through hole 441 with (are of a size of in 5mm * 5mm * 10mm) with arrangement part 44; The right cylinder lensed endface is positioned at from the right cylinder lens has left on the position of suitable distance, and use adhesive securement with the arrangement part end face; Make the right cylinder lens be in the V-type groove to upper state; Further in the position that 0.05mm is arranged from the breach 801 of glass substrate 80, with arrangement part 43 and right cylinder lens with arrangement part 44 usefulness adhesive securement on glass substrate.Then, laminar cementability link 21 is inserted into setting (Figure 35 (a)) in the breach.Secondly, move like in the V-type groove, creeping, make the end face of optical fiber touch laminar cementability link (Figure 35 (b)) through making optical fiber; Further make it mobile, so that the distortion of laminar cementability link, the opposition side driving fit that makes these parts is to the right cylinder lens.Then, optical fiber 10 usefulness surface plates 85 are sandwiched with arrangement part 43, further use optical fiber stationary fixture 94 that these are sandwiched and fixing (Figure 35 (c)).Such as stated; Even between the optical transmission medium that size is different as optical fiber and lens, connect, make the distortion of cementability link through pushing optical fiber, lens and laminar cementability link are with minimal area driving fit; Thereby when carrying out field-strip, can simply peel.
Embodiment 5
Carried out the end face of optical fiber handles by operation shown in Figure 36.Promptly as the laminar cementability link 21 of optics used with refractive index be adjusted to 1.46 acrylic acid series adhesives sheet, thickness is 25 μ m, be of a size of the thin slice of 8mm * 16mm.With its corrugationless stick on the U font support component 31 with the thin slice same size (Figure 36 (a)); Secondly; The coating of 1 optical fiber 10 (Furukawa system, outward through be that 250 μ m, cladding diameter are that 125 μ m, core diameter are 10 μ m) has been removed 20mm from end face; Make the optical fiber bare wire exposed, and in that 10mm has cut at the place optical fiber bare wire from the end.Secondly, with sticking on sheeting driving fit on the support component on the end face of optical fiber bare wire and dispose (Figure 36 (c)).Then, will optical fiber that end face is pasted with cementability link 20 to above move, unloaded optical fiber (Figure 36 (d)) from the support component 31 of support slice.At this moment, with face that optical fiber contacts on the periphery of cementability link be approximately 50 μ m～65 μ m from the center of core.
The optical fiber 10a that uses 45 pairs of arrangement parts shown in figure 37 to possess this cementability link 20 has carried out the optics connection.The V-shape that promptly has wide 250 μ m, high 250 μ m in central authorities is arranged the lower basal plate 452 of groove 45, and (V-shape of 10mm * 40mm * 10mm) is arranged and has been placed front end in the groove and remove and coat and the optical fiber 10a of cutting; On the other hand, placed same optical fiber 10b with facing one another.Make two optical fiber 10a and 10b along V-shape arrange groove till contact cementability link 20 near and driving fit.Under this state, from the top glass upper flat plate 453 is placed on to have on the lower basal plate 452 that V-shape arranges groove and fixes.
Through above process, two optical fiber, are not polluted and simple the connection V-shape in arranging groove on every side to not causing.Also have, because the flexibility of cementability link, the degree of freedom of fiber end face periphery increases, thereby optical fiber is not produced excessive squeeze pressure, its result, and breakage does not take place in optical fiber, and can carry out the optics connection with very good operability.Also have, according to the cementability of cementability link, the fiber end face driving fit, it is little of 0.3dB to connect loss.In the syndeton of formed optical fiber, D 1Be 50 μ m, D 2Be 65 μ m.
Also have, the disposal route of fiber end face shown in figure 36 only just can make the link that is fixed on the support component stick on the fiber end face simply with moving fiber, and its operability is good.
Embodiment 6
With the embodiment 1 the same applying of carrying out the cementability link to fiber end face.Connect in the operation at optics; When docking each other with the end face of optical fiber through cementability link intervention optical fiber; Except adopting till the thickness of cementability link becomes 10 μ m pushing optical fiber to make the operation that inside deforms, according to fiber optics ground being connected with embodiment 1 identical method.At this moment, measured to connect and lost, the result is 0.2dB.As stated, through making cementability link distortion, the end face that can make optical fiber each other more near, accomplished to realize the connection of lower loss.Under the situation of this embodiment, D 1Than fibre cladding diameter little (can not survey), D 2Be 85 μ m.
Embodiment 7
The optics that has carried out optical fiber by method shown in Figure 38 connects.Connect with arrangement part 46 and (be of a size of 10mm * 20mm * 40mm), have deep trouth 461 that width is 0.25mm and a pair of through hole 462a, 462b in central authorities.On the other hand; Central two support component 31a, the 31b (2mm * 2mm, thickness are 0.1mm) with the transparent plastic resin in cavity of employed laminar link 21 usefulness among the embodiment 1 sandwiched, made that laminar link is wrapped in inner film magazine.This film magazine is such shown in Figure 38 (a), be installed in the deep trouth 461 that connects with arrangement part.Front end 25mm partly is removed the optical fiber 10a, the 10b that coat and be cut to be inserted in the through hole respectively; And make side's optical fiber 10a contact wrap in the inner laminar cementability link (b) of film magazine; And gently be pressed into, cementability link 20 is fitted on the end face of optical fiber (c).After making this optical fiber move to suitable position, with adhesive securement on connecting with arrangement part.Secondly, move opposed facing the opposing party's optical fiber 10b, and make it driving fit (d) to the cementability link.Then, with bonding agent optical fiber is fixed on connection with on the arrangement part.
Through above process; Wrap in inside and cut a wherein part through sheeting with arrangement part inside in connection from laminar cementability link with the cementability link; And under this state, carry out the optics connection, accomplished to carry out the connection that fits to optical fiber from the cementability link with parts.Its result, but stable optics connects on the implementation structure, and optical connecting structure is made and is finished, and can prevent the adhering to of sand or dust on the cementability link, has improved production efficiency.In this case, D 1Than fibre cladding diameter little (can not survey), D 2Be approximately 65 μ m.
Embodiment 8
Figure 39 is the figure that is used to explain an example when connecting holocentric optical fiber, optical connecting structure of the present invention (joints of optical fibre).Figure 39 (a) is the figure of the inscape of expression optical connecting structure; Figure 39 (b) representes the figure of connection status.Insert in the through hole 761 of the aglet 76 that is arranged at the FC connector on the FC latch 72 through front end being removed the optical fiber 10 that coats and cut; Make aglet end face 762 and optical fiber end roughly as one man adjust the position, and will pour into and make it as the epoxy resin (EpoxyTechnology Inc. system, epoxy technologies 353) of bonding agent to solidify and fixed optical fiber.Secondly; With having used thickness is that the laminar link 21 of the acryl resin of 25 μ m prevents that air from getting into the ground driving fit and to the aglet end face, placing; Be inserted in the otch 49 that has with the corresponding diameter of aglet diameter; And, aglet is connected to each other and has formed optical connecting structure of the present invention (Figure 39 (b)) from the aglet butt joint that an opposite side will be vis-a-vis.
Embodiment 9
Figure 40 is the figure that is used to explain an example when connecting multi-core fiber, optical connecting structure of the present invention (joints of optical fibre).Figure 40 (a) is the figure of the inscape of the expression joints of optical fibre; Figure 40 (b) representes the figure of connection status.Also have, Figure 40 (a)～(c) is the key diagram of connection operation of the joints of optical fibre of expression Figure 40.Have again, the situation that is to use 4 core fibre belt carcass lines of expression in this figure, and optical fiber bar number is not limited in this.
At first; With the coating of the front end of removing optical fiber core 15a, 15b and cutting respectively is 4 optical fiber 101a～104a, 101b～104b; Insert respectively in the through hole of each MT aglet 75a, 75b; Adjusting position makes aglet end face 753 roughly consistent with optical fiber end, is coated with filling perforation 752a, 752b from bonding agent and pours into epoxy resin and make it to solidify and fixed optical fiber (Figure 41 (a)).
Secondly, at two guiding keyhole 751a, last insertion of 751b of a side MT aglet lead bolt 47a, 47b, and laminar cementability link 21 is placed on the end face 753 of its MT aglet (Figure 41 (b)).Secondly, make guiding bolt 47a, 47b connects between MT aglet 75a and the opposing party MT aglet 75b and form optical connecting structure of the present invention (Figure 40 (b), Figure 41 (c)).
As stated, optical connecting structure of the present invention utilizes a laminar cementability link can once connect many optical fiber, no matter which bar optical fiber all can carry out good optical to and connect.
Have again, optical connecting structure of the present invention, also applicable for the aglet of the end face that has ground the optical fiber that is used for common connector connection.If,, also can obtain the good optical characteristic even use the parts of the end face that has ground MT aglet end face 753 and each optical fiber to connect promptly with Figure 41 explanation, need not to carry out special design or processing, can use known aglet in the same old way.
Embodiment 10
The 42nd, the stereographic map of the inscape of the optical connecting structure when expression is applied to the MPO type joints of optical fibre with the present invention.Also have, Figure 43 is the figure of the connection status of the MPO type joints of optical fibre among explanation Figure 42, and wherein, Figure 43 (a) is that state, the Figure 43 (b) before expression connects is the vertical view of the state after expression connects.Have, the present invention also can be applicable to existing multicore connector MT-RJ, MPX, Mini-MT, Mini-MPO etc. and comprises on the adapter and latch of MT aglet except the MPO type joints of optical fibre shown in following again.
In Figure 42 and Figure 43, the MPO type joints of optical fibre are given as security MPO latch 71a, the 71b that housing that mechanism loads and unloads forms and are used for the adaptor for connecting 50 of a pair of MPO latch connection is formed by laminar cementability link 21, optical fiber core 15a, 15b, the MT aglet 75a that arranges and control optical fiber, 75b and through pushing away.
The connection of optical fiber at first is placed on laminar cementability link 21 on the end face of MT aglet 75a, and inserts guiding bolt 47a, 47b (Figure 43 (a)) in the guiding keyhole of the end face of the MT aglet 75a on being fixed in MPO latch 71a.Then, be inserted in the guiding keyhole of MT aglet 75b vis-a-vis through making the guiding bolt, limit and MT aglet 75b carry out contraposition, and the limit connects MPO latch 71a, 71b and adapter 50 (Figure 43 (b)) through above-mentioned housing.Have, MT aglet end face can not done milled processed again.When optics connected, inner at adapter, MT aglet end face made the cementability link between the centre and driving fit and form optical connecting structure each other.
As stated, in optical connecting parts of the present invention,, do not carry out milled processed and can realize that low loss connects yet even under the situation of using the MPO latch.Also have,, therefore, load and unload also simple because the MPO latch is to push away the signature convolution.
As stated, as adapter, as above-mentioned Figure 19 and shown in Figure 20, can use the adapter that disposes laminar cementability link.
Embodiment 11
Figure 44 (a)～(d) is illustrated under the situation about having used according to the optical connecting structure (joints of optical fibre) of MT aglet of the present invention; The key diagram of the connection operation when having used the laminar cementability link that possesses support component, Figure 45 is the front elevation that connects the guiding bolt support component of operation being used to shown in Figure 44.As Figure 44 (a) and shown in Figure 45; Two guiding bolt 47a, 47b are directed to bolt support component 57 and control, and laminar cementability link 21 two ends are arranged near the central authorities of each guiding bolt; Thus, laminar cementability link 21 is supported by two guiding bolt 47a, 47b.That kind shown in figure 45, guiding bolt support component 57 have two guiding bolt insertion groove 571a, 571b, and protruding dull and stereotyped 95a, 95b can be inserted in the incision-like hole that is communicated with the bolt insertion groove that leads from both sides with being free to slide.After the bolt that will lead is placed in the guiding bolt insertion groove, pins the then protruding flat board of protruding flat board and be pushed in the guiding croze, because of raised plate surrounds its slot part, the guiding bolt is controlled.Have, guiding bolt support component 57 inside have cavity 572 again, and therefore, in case place the guiding bolt, then laminar cementability link will be positioned at its cavity, and guiding bolt support component can not contact link.
Then; The two ends of the guiding bolt that will be controlled by this support component are inserted into have been fixed in guiding bolt patchhole 751a optical fiber 10a, 10b, a pair of MT aglet 75a, 75b, the 751b, and till contact guidance bolt support component 57, is pressed into MT aglet (Figure 44 (b)).Thus, through the guiding bolt, the MT aglet 75a that faces one another, 75b are to upper; Therefore; Through unclamping the protruding dull and stereotyped of guiding bolt support component, unload guiding bolt support component (Figure 44 (c)) from the guiding bolt, and the MT aglet that faces one another of butt joint and connect (Figure 44 (d)).Such as stated, through making guiding bolt support slice shape cementability link, when inserting the guiding bolt, can not damage the danger of laminar cementability link at guiding bolt front end, and can prevent that dust from adhering to.
Embodiment 12
To be expression use the inscape of the joints of optical fibre when the 4 core MT aglets and the stereographic map that connects operation with the present invention to Figure 46 (a)～(c).Such shown in Figure 46 (a); Support component 32 is to have and the periphery of the MT aglet cylinder-like part in the frame-like cavity of same shape almost; Near the central authorities of one of which end, be placed with the laminar cementability link 21 of horizontal wide 1.5mm; And the other end is the open end, and inside cylindraceous is the cavity, embeds in this cavity and places laminar cementability link 21 (Figure 46 (b)) at the end face of MT aglet 75a through the MT aglet 75a with fixed fiber.And be fixed under the state of aglet side the MT aglet 75b that faces one another of butt joint and form the optical connecting structure (Figure 46 (c)) of connector in the aglet that will embed support component.So,, can link be easily mounted in the MT aglet, and connect and to finish, therefore, can simply break away from as long as support component is unloaded from the MT aglet through support component is embedded in the aglet.
Embodiment 13
In order to make above-mentioned optical connecting structure shown in Figure 24, the V font of having prepared to have the cross section length of side and be the equilateral triangle of 0.3mm arrange the arrangement part 42 of groove 421 (be of a size of 5mm * 12mm * 3mm), 2 tabular on pull 81a, 81b (be of a size of 5mm * 5mm * 3mm), front end is removed and is coated and optical fibre core (diameter is 0.25mm) 10a, the 10b of cutting and the cementability link 25 that remains on support component 34.Support component 34 has used diameter to use refractive index to be adjusted to 1.46 ammonia ester elastomer system resin as 0.1mm, length as cylindrical bolt and the cementability link 25 of 3mm; Peripheral thickness at bolt has applied link with roughly becoming 0.1～0.4mm, makes it to adhere to.
In order to use above-mentioned each parts to make optical connecting structure, at first arrange groove 421 in that optical fiber 10a, 10b are being placed on, and a side optical fibers 10a is placed on from optical fiber 10b has on the position about 2mm.Secondly, placed support component 34 the leaning on the middle position of top of the arrangement groove 421 of the arrangement part 42 that is sandwiched in optical fiber 10a, 10b end face.At this moment, though not shown, for not floated easily, support component utilize spring to pin support component 34 lightly from top.
Then, move to the inside, make it contact, further make it end face that mobile and optics connected optical fiber 10a, 10b each other with cementability link 25 through making optical fiber 10a, 10b.At this moment,, be supported on the end face of cementability link 25 on the support component 34 on the optical axis, and through further being pressed into, optical fiber 10a, 10b are connected (with reference to Figure 24 (a)～(d)) each other attached to optical fiber 10a, 10b through being pressed into optical fiber 10a, 10b.
According to the method for attachment of optical transmission medium of the present invention, be placed on the V-type groove through the support component 34 that will possess cementability link 25, can supply with the cementability link of necessary amount to optical fiber 10a, 10b end face.And resulting optical connecting structure is to form through place cementability link 25 from the top, therefore, needn't carry out miscellaneous operation on substrate, that apply during operation etc. and just can connect.Also have,, the former light loss that axle offset brought in the cementability link does not take place on every side yet owing to, therefore, pollute to also producing to arranging the cementability link 25 of only supplying with necessary amount in the groove 421.Have again, when dismounting cementability link 25, only dismantle support component 34 and get final product, improved operating efficiency.Have, the connection loss of this moment does not go wrong on optical characteristics for 0.3dB or below it yet again.
Embodiment 14
In order to make optical connecting structure shown in Figure 47; As employed arrangement part 42 among the embodiment 13; Used with arrange groove 421 that intersect, have the arrangement part of the length of side as the groove 422 of the equilateral triangle of 0.1mm; Also have, as tightening up parts 81, on the position corresponding, used the parts that tighten up with length of side as the groove of the equilateral triangle of 0.2mm with the groove of arrangement part 42 422.In addition, use has been carried out the optics connection with embodiment 13 identical parts.
In order to use above-mentioned each parts to make optical connecting structure, at first such shown in Figure 47 (a) and (b), arrange on the groove 421 with embodiment 13 the same optical fiber 10a, 10b are placed on, then, support component 34 is placed on the groove 422 of arrangement part 42.And, such shown in Figure 47 (c), tighten up parts 81 through having loaded onto from the top, support component can be contained in the groove, optical fiber 10a, 10b are not floated.
Then, that kind shown in Figure 47 (d), moving fiber 10a, 10b make it to contact with cementability link 25.And through being pressed into optical fiber 10a, 10b; Make cementability link 25 on the support component 34 that is supported on the optical axis attached on optical fiber 10a, the 10b end face; And that kind further is pressed into shown in Figure 47 (e), makes cementability link 25 between optical fiber 10a, 10b each other and optics connects.Meanwhile, support component 34 moves to the top, and this connection that does not only influence optical fiber 10a, 10b does not cause damage to the end face of optical fiber 10a, 10b yet.
According to the syndeton of the optical transmission medium of this embodiment, through the groove 422 that intersects with arrangement groove 421 is set, can easily place support component 34 on arrangement part 42, thus contraposition simply.Moreover, when unloading cementability link 25, only dismantle support component 34 and get final product, improved operating efficiency.Have again, carried out repeating for 100 times connecting, the situation of damage optical fiber 10a, 10b does not take place.Have, the connection loss of this moment does not go wrong on optical characteristics for 0.2dB or below it yet again.
Embodiment 15
In order to make optical connecting structure shown in Figure 27; Prepared to remain on the link (length is 3mm) on have two the columnar lug bosses U font support component (width is 2mm) of (length is that 3mm, diameter are 0.15mm); On arrangement part; Both sides arranging groove have two hole 423a, 423b (diameter is that 0.15mm, the degree of depth are 3mm), can make the lug boss 341a of support component 34,341b insert this hole.The material of support component 34 has been used stainless steel, to this, with brush cementability link 25 is brushed on the peripheral part bottom of support component 34, makes it to adhere to.
Make optical connecting structure in order to use above-mentioned each parts; At first; In the both sides of arranging the support component 34 on the groove; After making end face place optical fiber 10a, 10b, the lug boss 341a, 341b that will have the support component 34 of cementability link 25 insert in two hole 423a of arrangement part 42, the 423b with facing one another, and support component 34 is made it and arranges on the arrangement groove 421 that groove is placed on arrangement part 42 across.Secondly, not shown upper plate is installed in the top of optical fiber 10a, 10b respectively and pins each optical fiber.
Then, move to the inside, make the preceding end in contact cementability link of each optical fiber, further make it to move and optics has connected optical fiber 10a, 10b end face each other, formed optical connecting structure of the present invention (with reference to Figure 27) through making optical fiber 10a, 10b.
According to the syndeton of the optical transmission medium of this embodiment, be inserted into the hole 423a, the 423b that are arranged on the arrangement part 42 only according to lug boss 341a, 341b4 and just can make arrangement part 42 and support component 34 contrapositions simply and install support component 34.Have, the connection loss of this moment does not go wrong on optical characteristics for 0.2dB or below it yet again.
Embodiment 16
That kind shown in figure 47 has formed optical connecting structure.That is, at first used the support component 34 of embodiment 14, as Figure 28 (d), the cementability link 25 of film like has been wrapped in the scope of wide 2mm of support component 34 exterior periphery.After walking around a week, the cementability link cementability link that makes the periphery bottom that is stitched together is in the state about sagging 0.2mm.Such as stated, except using the support component 34 that supports the cementability link, all use and carried out the optics connection with embodiment 14 identical parts.Also have, as the film of above-mentioned cementability link, used with acrylic acid series adhering resin (refractive index is 1.467) filmization, thickness is decided to be the film of 25 μ m.
When using above-mentioned each parts to form optical connecting structure; Such as stated; The cementability link 25 of filmization has homogeneous thickness, therefore, and for optical fiber 10a, 10b; Make the suffered squeeze pressure can be even, having accomplished to make light loss be that 0.18dB or the stable optics below it connect.Also have,, thereby improved operation property as long as the dismounting of cementability link 25 also peels thin slice.
Also have; Because cementability link 25 is using the resin of cementability; The easy driving fit of wetting state of leaning on its resin and can use suitable squeeze pressure to keep the adaptation between optical fiber 10a, 10b and the cementability link 25 through its bonding force to the end face of optical fiber 10a, 10b.Also have, because cementability link 25 softnesses, therefore, and can damaged optical fiber 10a, the end face of 10b, can carry out optics with very good operability and connect.Have again, owing to have releasable, can easily peel, therefore, can connect again through changing attached to V-type groove or optical fiber 10a, the last cementability link 25 of 10b.
Embodiment 17
Optical connecting structure shown in Figure 48, the support component 34, the bolt shape that possess fiber-optic component fixing 86a, 86b, arrangement part 42, bolt shape are introduced parts parts 82, optical fiber 10a, 10b, push part 87.At first, the leading section of optical fiber 10a is embedded into the fixed position 861a of a side optical fibers fixed part 86a and when keeping, the leading section of optical fiber 10b is embedded into the fixed position 861b of opposite side fiber-optic component fixing 86b and keeps.At this moment, the end face of optical fiber 10a, 10b is arranged to than the outstanding 1.1mm of fixed position end face.Be used for having pasted elastic body (acrylic acid series adhesives) 95 from top to support component 34 and the expression lobes 871 that bolt shape introducing parts 82 apply the extruder member 87 of squeeze pressure.
In order to use above-mentioned each parts to form optical connecting structure; At first; The fiber-optic component fixing 86a, the 86b that maintain optical fiber 10a, 10b have been installed respectively on arrangement part 42, and at this moment, arrangement groove 421 ground that make optical fiber 10a, 10b can be placed into arrangement part 42 have been done temporary fixed.At this moment, such shown in Figure 48 (a), though the front end of optical fiber in being placed on the state of arranging groove 421, at the front end of optical fiber 10b, has about 0.3mm and floats from arranging groove 421.
Secondly; Such shown in Figure 48 (b); On arrangement part 42, bolt shape introducing parts 82 and support component 34 that the stainless steel by constitutes between fiber-optic component fixing 86a, 86b, have been placed.At this moment, be coated with cementability link 25 in the bottom of the outer circumferential part of support component 34.Then; Such shown in Figure 48 (c); Pin stop portion 872 through making extruder member 87 combines with the binding site 424 of arrangement part 42, and pushes extruder member 87 from last direction arrangement part 42, and bolt shape introducing parts 82 and support component 34 are arranged on the groove 421 by being pressed in.At this moment, the front end of the optical fiber 10a that exposes from fiber-optic component fixing 86a is in being introduced parts 82 by the bolt shape by being pressed in the state of arranging in the groove; And from the fiber-optic component fixing 86b on right side, the front end of optical fiber 10b is in from arranging the state that groove 421 exposes.
Then, that kind shown in Figure 48 (d) moves forward the fiber-optic component fixing 86b on right side.The optical fiber 10b that moves forward, optical fiber 10b then, its front end contacts with the lower, outer perimeter portion of support component 34, and is introduced in when being pushed down downwards by lower, outer perimeter portion and arranges in the groove 421.At this moment, because the cementability link 25 contact optical fiber 10b end faces of the peripheral part bottom of support component 34 have adhered to the cementability link on the fiber end face.Also have, made optical fiber 10a, 10b mutually to last position downwards because optical fiber 10b pushes down.Through optical fiber 10b is moved forward, make both sides' optical fiber 10a, the front end of 10b connected by butt joint, made optical connecting structure of the present invention.
In the optical connecting structure that obtains according to present embodiment, support component 34 not only has the function that supports cementability link 25, and can carry out the contraposition of optical fiber 10a, 10b through support component 34 is pressed into downwards.

Claims (14)

1. optical connecting structure; Have the cementability link refractive index scalability, that constitute by solid-state laminar adhesives with the state of individual layer between between the end face of the optical transmission medium that faces one another or driving fit between the end face of optical transmission medium and the optical element; It is characterized in that
Above-mentioned optical transmission medium is inserted in the aglet that has an optical fiber arrangements hole at least or comprises in this optical fiber arrangements hole of latch of this aglet and fix, and a pair of above-mentioned aglet or a pair of above-mentioned latch clip the cementability link and dock,
Possess and be used to make above-mentioned aglet each other or the above-mentioned latch parts of contraposition each other; From and the end face center of the contacted above-mentioned optical transmission medium of above-mentioned cementability link between the radius R of the minimum value and value D the circumference of this cementability link and this optical transmission medium, satisfy the relation of 2R≤D≤60R.
2. optical connecting structure, the solid-state cementability link with refractive index scalability, is characterized in that between between the end face of the optical transmission medium that faces one another or driving fit between the end face of optical transmission medium and the optical element with the state of individual layer,
Possess: at least one pair of optical transmission medium, have the arrangement part of arranging groove, have the solid-state bonding link of distortion freely of refractive index scalability and the support component that supports this cementability link,
In the arrangement groove of arrangement part, place the end face of at least one pair of optical transmission medium with facing one another, support component is placed on the arrangement groove top between above-mentioned optical transmission medium, clips the cementability link and has at least a pair of optical transmission medium to be connected by optics.
3. optical connecting structure according to claim 1 and 2 is characterized in that:
Between the thickness of the above-mentioned cementability link between the end face of the optical transmission medium that faces one another or between the end face of optical transmission medium and the optical element is 50 μ m or below it.
4. optical connecting structure according to claim 1 and 2 is characterized in that:
It is 10 μ m or more than it that above-mentioned cementability link bonding kept at a distance.
5. optical connecting structure according to claim 1 and 2 is characterized in that:
Above-mentioned cementability link is made up of silicone resin or acryl resin.
6. optical connecting structure according to claim 1 and 2 is characterized in that:
Above-mentioned optical transmission medium uses the arrangement part butt joint.
7. optical connecting structure according to claim 1 is characterized in that:
The supported member supporting of above-mentioned cementability link.
8. optical connecting structure according to claim 1 is characterized in that:
Above-mentioned aglet or latch are installed in the adapter, this aglet each other or latch clip cementability link butt joint each other in adapter inside.
9. optical connecting structure according to claim 1 is characterized in that:
The parts that are used for above-mentioned contraposition are the guiding bolt, and above-mentioned aglet or latch have the guiding keyhole, and bolt inserts the contraposition of carrying out aglet or latch in the guiding keyhole that faces one another through leading.
10. optical connecting structure according to claim 8 is characterized in that:
The support component that supports the cementability link is installed in the above-mentioned open sleeve.
11., it is characterized in that according to claim 7 or 8 described optical connecting structures:
The support component that is supporting the cementability link is made up of cylinder-like part, is supported with the cementability link through the end at this cylinder-like part, and the other end of cylinder-like part is embedded on above-mentioned aglet or the adapter and is connected by optics.
12. optical connecting structure according to claim 2 is characterized in that:
Have groove in above-mentioned arrangement part upper edge with the direction that the arrangement groove intersects, above-mentioned support component is placed on this groove.
13. optical connecting structure according to claim 2 is characterized in that:
Above-mentioned support component has a lug boss at least, and above-mentioned arrangement part has a hole at least, in this hole, inserts the lug boss of support component and fix, and support component is placed on arrangement groove top.
14. optical connection method; It is characterized in that; Have: the distortion freely that use at least one pair of optical transmission medium, have the arrangement part of arranging groove, has the refractive index scalability solid-state and be the cementability link of simple layer structure and the support component that supports this cementability link; In the arrangement groove of above-mentioned arrangement part, make the end face of at least one pair of optical transmission medium face one another the operation of placement;
On the arrangement groove between the optical transmission medium that faces one another, place and support the operation of the support component of the solid-state cementability link of distortion freely; And,
The operation that makes the above-mentioned optical transmission medium that faces one another clip above-mentioned cementability link butt joint and carry out the optics connection.
CN200810124982XA 2003-11-19 2004-11-17 Optical connection structure and optical connection method thereof Active CN101349788B (en)

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JP2003-388707 2003-11-19
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JP2004-086343 2004-03-24
JP2004086343A JP4043448B2 (en) 2004-03-24 2004-03-24 OPTICAL CONNECTION STRUCTURE AND METHOD FOR MANUFACTURING THE SAME
JP2004170679 2004-06-09
JP2004170679A JP4109653B2 (en) 2004-06-09 2004-06-09 Optical connector, and split sleeve for connection, support member and adapter used therefor
JP2004-170679 2004-06-09
JP2004211337A JP3993590B2 (en) 2004-07-20 2004-07-20 OPTICAL CONNECTION STRUCTURE, ITS MANUFACTURING METHOD, AND SUPPORT MEMBER USED FOR THE SAME
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JP2001124958A (en) * 1999-10-27 2001-05-11 Yasuhiro Koike Method for connecting optical fiber and light-receiving semiconductor device

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