CN207249192U - A kind of universal optical fiber beam expansion connector - Google Patents
A kind of universal optical fiber beam expansion connector Download PDFInfo
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- CN207249192U CN207249192U CN201721290933.4U CN201721290933U CN207249192U CN 207249192 U CN207249192 U CN 207249192U CN 201721290933 U CN201721290933 U CN 201721290933U CN 207249192 U CN207249192 U CN 207249192U
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Abstract
It the utility model is related to a kind of universal optical fiber beam expansion connector, including ordinary connector loose mail, metal caudal peduncle, ceramic contact pin with the level, socket type optical fiber lens；The high step side pressure of ceramic contact pin enters one end of metal caudal peduncle, forms an independent optical fiber contact；The low step end cap of ceramic contact pin has socket type optical fiber lens；Bare fibre is inserted in ceramic contact pin, and optical fiber is connected as a single entity with ceramic contact pin；Transparent UV glue is coated in ceramic contact pin surrounding, and transparent UV glue is also coated in fiber end face；The fiber end face of ceramic contact pin is in close contact with the convex lens of socket type optical fiber lens；Connector loose mail is assembled with optical fiber contact, and ceramic contact pin stretches out connector loose mail.The outer diameter at the low step end of ceramic contact pin is less than the internal diameter of socket type optical fiber lens, and the outside diameter of socket type optical fiber lens is less than the maximum outside diameter at the high step end of ceramic contact pin.
Description
Technical field
A kind of universal optical fiber beam expansion connector is the utility model is related to, belongs to optical fiber connector technical field device.
Background technology
It can be divided into three classes currently for the optical fiber connector of silica fibre：
First, traditional single core or multi-fiber connector：
They are usually completed by techniques such as fiber stripping, injecting glue, curing, grindings, in order to realize the non-Buddhist nun for eliminating fiber alignment
That reflection effect, extrudes single or multi-core optical fiber contact pins by the spring inside connector shell, finally realizes the close-fitting of optical fiber
Close docking.This kind of convention connectors processing technology is fixed, and maturity is high, and insertion loss is smaller, and return loss is controllable, and is processed into
This is low, is current most important processing method, occupation rate of market more than 95%；But this kind of connector has each and every one several general drawbacks,
First, connector fiber end face stain resistance ability is low, particularly single mode optical connector, and the subtle dust of a naked eyes is just sufficient
To produce the loss of several dB, normally safeguarded to fiber link and malfunction elimination brings inconvenience.Secondly, optical fiber connection
End face easily scratches when device docks, and resistance to plug number is limited, and the connector often plugged is needed constantly to do polishing treatment.Its
Principle is as shown in Figure 1.
2nd, contactless optical fiber connector
Contactless optical fiber connector refers to that fiber end face optical fiber when into end is depressed in contact pin end face, and optical fiber connector leads to
Crossing external force extruding realizes the physics docking of optical fiber contact pins, but fiber end face is not carried out docking at this time, and Typical Representative is MPO light
Fiber connector, abbreviation NC-MPO connectors, obtains certain application in data center, optical transmission system at present, be single or
One of direction of multi-core connector development.
Traditional MPO connector needs all fiber end faces, and intimate physical contact could work normally at the same time, because if having
The air gap produces, and will result in light single and multiple reflections between fiber end face, seriously affects the stability of signal.It is non-contact
MPO optical fiber connector usually less than several microns in connector pin surface, and in light in preset optical fiber or optical fiber processing
Antireflection film is plated in fine end face, after connector docks, forms the air gap of a very little, but antireflection film between connectors
The multiple reflections of light can be prevented, do not influence the insertion loss and return loss of optical fiber, and because fiber end face is less than lock pin surface,
It can ensure that fiber end face is not readily susceptible to wear or destroys in docking.Non-contact MPO optical fiber connector have insertion loss it is low,
The feature performance benefits such as return loss is high, interchangeability is good, end face is not easy to wear, service life length.But contactless optical fiber connector is only
It is the connector of optical fiber undercut, its surface stain resistance ability not exclusively as publicizing producer, is easier to shelter evil people and countenance evil practices in fact,
Once oil dirty component polluted connector ends, its cleaning difficulty is larger, this is also to restrict the type connector to popularize
One of factor, its principle are as shown in Figure 2.
3rd, expanded core fiber connector
Expanded core fiber connector does not also contact end face in docking, it has essence again with foregoing contactless connector
Difference, contactless connector is mainly in bare fibre end face coating film treatment, and expanded core fiber connector is encapsulated in fiber end face
Lens, fiber end face are occupy at the focal length of lens, and such point light source is led to by producing a branch of parallel hot spot, parallel hot spot after lens
Cross after the lens of another connector and be refracted as a point light source, hence into optical fiber.This connector installation difficulty is larger,
Usually with multidimensional adjustment frame and the synthesis adjustment of light source luminous power, production efficiency is low, tedious process, and production cost occupies height not
Under, and the disposable qualification rate of product is not high, above the reason is that causing expanded core fiber connector to be unable to the major reason that scale is popularized,
Its principle is as shown in Figure 3.
Utility model content
The utility model carries out brand-new design for three classes expanded core fiber connector, there is provided a kind of universal optical fiber expands
Beam connector and its preparation process.Connected with its replacement because the ordinary optic fibre that fiber end face is dirty and causes optical signal to interrupt
Device, its contract access point is not only to realize optical index, but the angle from application and popularization is standardized General design, and
Processed by mould, position degree and angle of the precise injection molding solution conventional lenses in encapsulation, greatly simplifie encapsulation difficulty,
Production cost is reduced, improves production efficiency, is allowed to possessed the value popularized.
In order to solve problem above, the utility model employs following technical solution：A kind of universal optical fiber beam expansion connection
Device, including ordinary connector loose mail, metal caudal peduncle, ceramic contact pin with the level, socket type optical fiber lens；The plateau of ceramic contact pin
Rank side pressure enters one end of metal caudal peduncle, forms an independent optical fiber contact；The low step end cap of ceramic contact pin has socket type
Optical fiber lens；Bare fibre is inserted in ceramic contact pin, and optical fiber is connected as a single entity with ceramic contact pin；Transparent UV glue is coated in ceramic contact pin four
In week, transparent UV glue is also coated in fiber end face；The fiber end face of ceramic contact pin and the convex lens of socket type optical fiber lens closely connect
Touch；Connector loose mail is assembled with optical fiber contact, and ceramic contact pin stretches out connector loose mail.
The outer diameter at the low step end of ceramic contact pin is less than the internal diameter of socket type optical fiber lens, socket type optical fiber lens it is outer
Footpath is less than the maximum outside diameter at the high step end of ceramic contact pin.
The step is annular steps type.
The socket type optical fiber lens are using the high macromolecule material of glass material or light transmittance.
Its universal optical fiber beam expansion connector preparation process, comprises the following steps：
Step 1：Select universal standard type contact pin, close to ceramic contact pin end face side, using machine plus or grinding by the way of add
Work goes out circular ring type step；
Step 2：Ceramic contact pin is pressed into metal caudal peduncle, forms an independent optical fiber contact；
Step 3：Injected using 353ND epoxy glues in ceramic contact pin, connector loose mail is sleeved on optical cable to be prepared
On, using optical fiber wire stripper stripping fiber optic cables, by the bare fibre insertion ceramic contact pin after cleaning, then it is heating and curing, makes optical fiber
It is connected as a single entity with ceramic contact pin, then connector loose mail and optical fiber contact is completed to assemble, assembling completion passes through optic fiber polishing machine
Conventional grinding is carried out, finally completes the test of conventional 2D, 3D, insertion loss and return loss；
Step 4：Using the end face of alcohol washes ceramic contact pin, transparent UV glue is evenly coated in stepped ramp type ceramic contact pin four
Week, and transparent UV glue is also coated in fiber end face, eliminate the bubble of inside；It is saturating using alcohol or liquid nitrogen cleaning socket type optical fiber
Mirror, the both sides for ensuring convex lens by high magnified glass are not allow for dust；Socket type optical fiber lens are sleeved on ceramic contact pin,
In the case where confirming that the fiber end face of ceramic contact pin is in close contact with the convex lens of cartridge type optical fiber lens, carried out with ultraviolet lamp at curing
Manage, connector is taken out after transparent UV gum formings.
The telescopic optical fiber lens are processed using mould and precise injection molding technique, one-pass molding.Pass through overall processing
Shaping both ensure that the position degree of optical fiber lens, also have cured the angle of optical fiber lens, greatly improves Product processing efficiency,
Also reduce the cost of Product processing.
The outer diameter at the low step end of ceramic contact pin is less than the internal diameter of socket type optical fiber lens, socket type optical fiber lens it is outer
Footpath is less than the maximum outside diameter at the high step end of ceramic contact pin.
The step is annular steps type.
The socket type optical fiber lens are using the high macromolecule material of glass material or light transmittance.
The utility model has the following advantages：
1st, it is very simple by the angle and position, production method of moulding precision guarantee lens；
2nd, assembling settles at one go, and original cumbersome technique is revolutionized in design concept；
3rd, Product processing cost is greatly lowered, amplitude is up to more than 80%；
4th, standardized designs are realized in structure, meet universal design concept；
5th, the armies such as Aeronautics and Astronautics, naval vessel, electronics, field operation can be can be widely applied to extending design on the basis of single
Use multi-fiber connector.
Brief description of the drawings
Fig. 1 is the structure diagram of traditional single core or multi-fiber connector.
Fig. 2 is the structure diagram of conventional contactless optical fiber connector.
Fig. 3 is the structure diagram of traditional expanded core fiber connector.
Fig. 4 is the general illustration of the utility model.
Fig. 5 is ceramic contact pin structure chart with the level.
Fig. 6 is socket type optical fiber lens structure chart.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail.
As shown in Figs. 4-6, the utility model provides a kind of universal optical fiber beam expansion connector, including ordinary connector
Loose mail 1, metal caudal peduncle 2, ceramic contact pin with the level 3, socket type optical fiber lens 4；The high step side pressure of ceramic contact pin 3 enters metal
One end of caudal peduncle 2, forms an independent optical fiber contact；The low step end cap of ceramic contact pin 3 has socket type optical fiber lens 4；
Bare fibre is inserted in ceramic contact pin 3, and optical fiber is connected as a single entity with ceramic contact pin 3；Transparent UV glue is coated in 3 surrounding of ceramic contact pin, in light
Also transparent UV glue is coated in fine end face；The fiber end face of ceramic contact pin 3 and the convex lens 5 of socket type optical fiber lens 4 are in close contact；Even
Connect device loose mail 1 to assemble with optical fiber contact, ceramic contact pin 3 stretches out connector loose mail 1.The outer diameter at the low step end of ceramic contact pin
Less than the internal diameter of socket type optical fiber lens 4, the outside diameter of socket type optical fiber lens 4 is less than outside the maximum at the high step end of ceramic contact pin 3
Footpath.The step is annular steps type.The socket type optical fiber lens 4 are using the high macromolecule of glass material or light transmittance
Material.
Its universal optical fiber beam expansion connector preparation process, comprises the following steps：
Step 1：Select universal standard type contact pin, close to ceramic contact pin end face side, using machine plus or grinding by the way of add
Work goes out circular ring type step；
Step 2：Ceramic contact pin 3 is pressed into metal caudal peduncle 2, forms an independent optical fiber contact；
Step 3：Injected using 353ND epoxy glues in ceramic contact pin 3, connector loose mail 1 is sleeved on light to be prepared
On cable, using optical fiber wire stripper stripping fiber optic cables, by the bare fibre insertion ceramic contact pin 3 after cleaning, then it is heating and curing, makes light
Fibre is connected as a single entity with ceramic contact pin 3, then connector loose mail 1 and optical fiber contact are completed to assemble, and assembling is completed to grind by optical fiber
Grinding machine carries out conventional grinding, finally completes the test of conventional 2D, 3D, insertion loss and return loss；
Step 4：Using the end face of necessary alcohol washes ceramic contact pin 3, transparent UV glue is evenly coated in stepped ramp type ceramics
3 surrounding of contact pin, and transparent UV glue is also coated in fiber end face, eliminate the bubble of inside；Using alcohol or liquid nitrogen cleaning socket type
Optical fiber lens 4, the both sides for ensuring convex lens 5 by high magnified glass are not allow for dust；Socket type optical fiber lens 4 are sleeved on pottery
On porcelain contact pin 3, in the case where confirming that the fiber end face of ceramic contact pin 3 is in close contact with the convex lens 5 of cartridge type optical fiber lens 4, use is ultraviolet
Lamp carries out curing process, and connector is taken out after transparent UV gum formings.
The telescopic optical fiber lens 4 are processed using mould and precise injection molding technique, one-pass molding.Pass through overall processing
Shaping both ensure that the position degree of optical fiber lens, also have cured the angle of optical fiber lens, greatly improves Product processing efficiency,
Also reduce the cost of Product processing.
The step is annular steps type.
The socket type optical fiber lens 4 are using the high macromolecule material of glass material or light transmittance.
In order to ensure cartridge type optical fiber lens 4 are smoothly fitted into stepped ramp type ceramic contact pin 3, and the later stage is facilitated to be fitted by optical fiber
Ceramic centring sleeve 7 in orchestration 6 realizes the docking of connector, it is also necessary to pays attention at 2 points, first, the outer diameter of step of ceramic contact pin
The internal diameter of cartridge type optical fiber lens 4 is dimensioned slightly smaller than, second, the outside diameter outline of cartridge type optical fiber lens 4 is less than in ceramic contact pin 3 most
Big outside diameter.
Two connectors for completing assembling are completed to dock by fiber adapter 6.
The above descriptions are merely preferred embodiments of the present invention, is not restricted to the utility model, for ability
For the technical staff in domain, various modifications and changes may be made to the present invention.It is all the spirit and principles of the utility model it
Interior, any modification, equivalent replacement, improvement and so on, should be included within the right of the utility model.
Claims (4)
- A kind of 1. universal optical fiber beam expansion connector, it is characterised in that：Including ordinary connector loose mail, metal caudal peduncle, band step Ceramic contact pin, socket type optical fiber lens；The high step side pressure of ceramic contact pin enters one end of metal caudal peduncle, forms an independent optical fiber contact；The low step end cap of ceramic contact pin has socket type optical fiber lens；Bare fibre is inserted in ceramic contact pin, and optical fiber is connected as a single entity with ceramic contact pin；Transparent UV glue is coated in ceramic contact pin surrounding, and transparent UV glue is also coated in fiber end face；The fiber end face and set of ceramic contact pin The convex lens of cartridge type optical fiber lens is in close contact；Connector loose mail is assembled with optical fiber contact, and ceramic contact pin stretches out connector loose mail.
- A kind of 2. universal optical fiber beam expansion connector according to claim 1, it is characterised in that：The low step end of ceramic contact pin Outer diameter be less than the internal diameters of socket type optical fiber lens, the outside diameters of socket type optical fiber lens is less than the high step end of ceramic contact pin Maximum outside diameter.
- A kind of 3. universal optical fiber beam expansion connector according to claim 1, it is characterised in that：The step is annulus Stepped ramp type.
- A kind of 4. universal optical fiber beam expansion connector according to claim 1, it is characterised in that：The socket type optical fiber Lens are using the high macromolecule material of glass material or light transmittance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721290933.4U CN207249192U (en) | 2017-09-30 | 2017-09-30 | A kind of universal optical fiber beam expansion connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290933.4U CN207249192U (en) | 2017-09-30 | 2017-09-30 | A kind of universal optical fiber beam expansion connector |
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| CN207249192U true CN207249192U (en) | 2018-04-17 |
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| CN201721290933.4U Active CN207249192U (en) | 2017-09-30 | 2017-09-30 | A kind of universal optical fiber beam expansion connector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688213A (en) * | 2017-09-30 | 2018-02-13 | 南京全信光电系统有限公司 | A kind of universal optical fiber beam expansion connector and its preparation technology |
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2017
- 2017-09-30 CN CN201721290933.4U patent/CN207249192U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688213A (en) * | 2017-09-30 | 2018-02-13 | 南京全信光电系统有限公司 | A kind of universal optical fiber beam expansion connector and its preparation technology |
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