CN112327421A - Novel end face coupling structure of multi-core optical fiber connector and preparation method thereof - Google Patents
Novel end face coupling structure of multi-core optical fiber connector and preparation method thereof Download PDFInfo
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- CN112327421A CN112327421A CN202010919672.8A CN202010919672A CN112327421A CN 112327421 A CN112327421 A CN 112327421A CN 202010919672 A CN202010919672 A CN 202010919672A CN 112327421 A CN112327421 A CN 112327421A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3846—Details of mounting fibres in ferrules; Assembly methods; Manufacture with fibre stubs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3863—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using polishing techniques
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
A novel end face coupling structure of a multi-core optical fiber connector and a preparation method thereof are provided, the end face coupling structure comprises: an MT insertion core, a plurality of optical fibers and an anti-reflection film; the optical fiber end face and the MT insertion core end face are relatively flush or slightly sunken, and the optical fiber end face is sunken by 0-99 nm relative to the MT insertion core end face; the preparation method reduces the loss of the optical fiber to the minimum by controlling the concave amount of the end face of the optical fiber or collimating the light beam, so that the insertion loss of the MT optical fiber connector reaches the minimum. The MT optical fiber connector of the invention enables the end face of the optical fiber and the end face of the MT insertion core to be basically flush in a grinding or laser cutting mode, so that the end faces of the optical fibers are not in physical contact when the optical fibers are coupled and butted, the scattering loss is reduced to the minimum, the condition that the optical fibers of the traditional MT optical fiber connector are obviously stressed is avoided, and the loss of the MT optical fiber connector is minimized.
Description
Technical Field
The invention belongs to the technical field of optical fiber connectors, and particularly relates to a novel end face coupling structure of a multi-core optical fiber connector and a preparation method of the novel end face coupling structure.
Background
The optical fiber connector widely used at present is a physical contact type connector, and after the connector is butted, the optical fibers at two ends are required to be ensured to be in close physical contact, and no air gap exists in the middle. To achieve this, tight control of the fiber end face geometry is required. For example, the IEC61755 standard specifies various fiber optic connector endface geometries. Accordingly, the fiber optic connector must have a spring at least one end to provide axial compression to maintain the optical fibers in intimate contact at the two ends. For a multi-fiber connector, such as MT, multiple optical fibers are integrated in the same ferrule, and in order to ensure that each optical fiber is in close contact, the optical fiber is required to be significantly higher than a plastic ferrule body (as shown in fig. 1), the IEC standard specifies that the optical fiber height is +1000nm to +3500nm, the maximum optical fiber height difference of the same ferrule is 500nm, and the maximum optical fiber height difference of two adjacent optical fibers is 300 nm. And finally, the optical fibers are slightly displaced by using the 7.8N-11.4N spring force provided by the optical fiber connector, so that each pair of optical fibers are ensured to be contacted. This significant fiber protrusion scheme is prone to fiber damage, cracking, and abrasion during manufacturing and use. Contaminants falling onto the endface during use can cause endface gaps, causing fluctuations in optical performance.
In order to solve this problem, the published CN104220912B patent uses differential polishing to make the concave depth of the optical fiber be 0.1 to 2.8 microns, and plates an anti-reflection coating on the end face of the optical fiber, so as to solve the fresnel reflection caused by the gap between the end faces of the optical fiber and to make the optical fiber not contact, thereby improving the service life of the optical fiber connector.
The fiber end face gap has two effects: fresnel reflection and fiber scattering; fresnel reflection can be reduced by the reflective coating; however, as the fiber end face gap increases, the resulting scattering loss increases rapidly.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a novel end face coupling structure of a multi-core optical fiber connector and a preparation method thereof, and the specific technical scheme is as follows:
a novel end face coupling structure of a multi-core optical fiber connector comprises:
the MT ferrule is provided with a polished MT ferrule end face, and a plurality of optical fiber channels penetrate inwards on the MT ferrule end face;
a plurality of optical fibers, each of the optical fibers passing through a corresponding fiber channel within the MT ferrule and terminating at a fiber end face adjacent to the MT ferrule end face;
an antireflection film coated on the end face of the optical fiber;
the optical fiber end face and the MT insertion core end face are relatively flush or slightly sunken, and the optical fiber end face is sunken by 0-99 nm relative to the MT insertion core end face.
Furthermore, two MT guide holes are formed in the end face of the MT ferrule in an inward penetrating mode and are located on two sides of the optical fiber channel.
A method for preparing the end-face coupling structure of multi-core optical fibre connector features that the recess of optical fibre end face is controlled or the light beam is collimated to minimize the scattering loss of optical fibre and the insertion loss of MT optical fibre connector.
According to the technical scheme I, the method comprises the following steps:
s1 solidification treatment of optical fiber and MT inserting core
Correspondingly inserting a plurality of optical fibers into the optical fiber channel of the MT ferrule, and curing the optical fibers and the MT ferrule by using epoxy glue;
s2 flush processing of optical fiber end face and MT inserting core end face
Carrying out non-differential polishing on the end face of the optical fiber and the end face of the MT ferrule solidified in the step S1 by using a cutting material, so that the end face of the optical fiber and the end face of the MT ferrule are basically flush, wherein the cutting material has no difference on the materials of the optical fiber and the MT ferrule and cannot enable the end face of the optical fiber to obviously protrude out of the end face of the MT ferrule;
s3 recessing of the end face of the optical fiber
Polishing the end face of the optical fiber in the step S2 by using a polishing film embedded with 1 micron cerium oxide or silicon dioxide, so that the end face of the optical fiber is recessed by 0-99 nm relative to the end face of the MT ferrule;
s4 preparation of antireflection film for optical fiber end face
After the polishing process of step S3 is finished, an anti-reflection coating is applied to the end face of the optical fiber to form an anti-reflection coating.
According to the second technical scheme, the method comprises the following steps:
s1 pretreatment of the end face of the optical fiber
The optical fiber end faces of the optical fibers are pretreated in a laser cutting or bare optical fiber grinding mode before the optical fibers are inserted into the optical fiber channel of the MT ferrule;
s2: production of antireflection film for optical fiber end face
Coating an anti-reflection coating on the optical fiber end surface pretreated in the step S1 to form an anti-reflection film;
s3: limited flush insertion of optical fibers
A smooth mirror surface limit is arranged at the front end of the end face of the MT ferrule to ensure that the end faces of the optical fibers are relatively flush with the end face of the MT ferrule after the optical fibers are inserted, and then a proper clamp is used for pushing the optical fibers processed in the step S2 to be correspondingly inserted into an optical fiber channel inside the MT ferrule;
s4: fixation of optical fibres
After all the optical fibers are inserted in the step S3, the optical fibers are fixed by using an epoxy glue or a clamping mechanism.
According to the third technical scheme, the method comprises the following steps:
s1 pretreatment of the end face of the optical fiber
The optical fiber end faces of the optical fibers are pretreated in a laser cutting or bare optical fiber grinding mode before the optical fibers are inserted into the optical fiber channel of the MT ferrule;
s2 micro-lens arranged in front of end face of optical fiber
Arranging a section of micro lens at the front end of the end face of the optical fiber pretreated by the step S1, and collimating the light into parallel light after passing through the micro lens;
s3: production of an antireflection film
Coating the front end of the micro lens in the step of S2 with an anti-reflection coating to form an anti-reflection film;
s4: limited flush insertion of optical fibers
The front end of the end face of the MT insertion core is provided with a smooth mirror surface limit to ensure that the end faces of the optical fibers are relatively flush with the end face of the MT insertion core after the optical fibers are inserted, and then a proper clamp is used for pushing the optical fibers processed in the step S3 to be correspondingly inserted into an optical fiber channel inside the MT insertion core;
s5: fixation of optical fibres
After all the optical fibers are inserted in the step S4, the optical fibers are fixed by using an epoxy glue or a clamping mechanism.
The invention has the beneficial effects that:
the MT optical fiber connector of the invention enables the end face of the optical fiber and the end face of the MT insertion core to be basically flush in a grinding or laser cutting mode, so that the end faces of the optical fibers are not in physical contact when the optical fibers are coupled and butted, the scattering loss is reduced to the minimum, the condition that the optical fibers of the traditional MT optical fiber connector are obviously stressed is avoided, and the loss of the MT optical fiber connector is minimized.
Drawings
Fig. 1 shows a schematic view of a conventional MT connector end face structure;
FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 5 is an enlarged view of the structure of the portion A in FIG. 4;
fig. 6 shows a schematic diagram of three optical paths in an embodiment of the present invention.
Shown in the figure: 1. an MT inserting core; 11. an MT guide hole; 12. an MT ferrule end face; 2. an optical fiber; 21. an optical fiber end face; 3. an antireflection film; 4. a microlens.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the application provides a novel end face coupling structure of a multi-core optical fiber connector and a preparation method thereof, and solves the problem that scattering loss is rapidly increased due to the increase of the clearance of the end face of an optical fiber in the prior art, so that the end face is not in physical contact when the optical fiber is in butt joint, the scattering loss is reduced to the minimum, and the loss of the optical fiber connector is minimized.
In order to solve the above problems, the technical solution in the embodiment of the present application has the following general idea:
the optical fiber end face and the MT insertion core end face are basically flush in a grinding or laser cutting mode, so that the end faces are not in physical contact when the optical fibers are in coupling butt joint, the condition that the optical fibers of the traditional MT optical fiber connector are stressed obviously is avoided, and the loss of the MT optical fiber connector is minimized.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 2-4, a novel end-face coupling structure of multi-core fiber connector, this end-face coupling structure includes:
the optical fiber connector comprises an MT ferrule 1, wherein the MT ferrule 1 is provided with a polished MT ferrule end face 12, and a plurality of optical fiber channels penetrate inwards on the MT ferrule end face 12;
a plurality of optical fibers 2, each of said optical fibers 2 passing through a corresponding fiber passage within said MT ferrule 1 and terminating at a fiber end face 21 adjacent to said MT ferrule end face 12;
an antireflection film 3 coated on the optical fiber end face 21;
the optical fiber end face 21 and the MT ferrule end face 12 are relatively flush or slightly recessed, and the optical fiber end face 21 is recessed 0-99 nm relative to the MT ferrule end face 12; by the technical scheme, when the optical fibers 2 are coupled and butted, the end faces 21 of the optical fibers are not in physical contact, and the scattering loss is reduced to the minimum, so that the loss of the MT optical fiber connector is minimized.
As shown in fig. 2 to 4, two MT guide holes 11 penetrate through the MT ferrule end face 12, and the MT guide holes 11 are located on two sides of the optical fiber channel; with this solution, the MT guide hole 11 is used for alignment guiding of two MT fiber connectors.
A method for preparing the end-face coupling structure of multi-core optical fibre connector features that the recess of optical fibre end face 21 is controlled or the optical beam is collimated to minimize the scattering loss of optical fibre and the insertion loss of MT optical fibre connector.
Example one
As shown in fig. 2, a method for preparing a novel end-face coupling structure of a multi-core fiber connector includes the following steps:
s1 solidification treatment of optical fiber and MT inserting core
Correspondingly inserting a plurality of optical fibers 2 into the optical fiber channel of the MT ferrule 1, and then curing the optical fibers 2 and the MT ferrule 1 by using epoxy glue;
s2 flush processing of optical fiber end face and MT inserting core end face
Polishing the fiber end face 21 and the MT ferrule end face 12 after being cured in the step S1 by using a cutting material in a non-differential manner, so that the fiber end face 21 and the MT ferrule end face 12 are substantially flush, wherein the cutting material has no difference in the material of the fiber 2 and the MT ferrule 1, and the fiber end face 21 does not protrude out of the MT ferrule end face 12 significantly;
s3 recessing of the end face of the optical fiber
Polishing the optical fiber end face 21 in the step S2 by using a polishing film embedded with 1 micron cerium oxide or silicon dioxide, so that the optical fiber end face 21 is sunken by 0-99 nm relative to the MT insertion core end face 12;
s4 preparation of antireflection film for optical fiber end face
After the polishing in step S3 is completed, the optical fiber end face 21 is coated with an antireflection coating to form an antireflection film 3.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the method is characterized in that a plurality of increasingly thin polishing materials are used for polishing the optical fiber end face 21 and the MT insertion core end face 12, and different from the manufacturing process of the common MT insertion core, the method cancels the cutting material which enables the optical fiber end face 21 to obviously protrude out of the MT insertion core end face 12, and changes one cutting material which has no difference on the materials of the optical fiber 2 and the MT insertion core 1, so that the optical fiber end face and the MT insertion core end face are basically flush after the process is finished;
polishing the optical fiber end face 21 by using a polishing film embedded with 1 micron cerium oxide or silicon dioxide to enable the optical fiber end face 21 to be sunken by 0-99 nm relative to the MT insertion core end face 12, so that the optical fiber loss can be reduced to the minimum, and the insertion loss of the MT optical fiber connector can be minimized; the fresnel reflection can be reduced by applying the antireflection coating 3 to the fiber end face 21 after the end of the lapping and polishing.
Example two
As shown in fig. 3, a method for preparing a novel end-face coupling structure of a multi-core fiber connector includes the following steps:
s1 pretreatment of the end face of the optical fiber
The optical fiber end surfaces 21 of the optical fibers 2 are pretreated in a laser cutting or bare fiber grinding mode before being inserted into the optical fiber channel of the MT ferrule 1;
s2: production of antireflection film for optical fiber end face
Coating the optical fiber end face 21 pretreated in the step S1 with an antireflection coating to form an antireflection film 3;
s3: limited flush insertion of optical fibers
A smooth mirror surface limit is arranged at the front end of the MT ferrule end face 12 to ensure that the optical fiber end face 21 is relatively flush with the MT ferrule end face 12 after the optical fibers 2 are inserted, and then a proper clamp is used for pushing the optical fibers 2 processed in the step S2 to be correspondingly inserted into an optical fiber channel in the MT ferrule 1;
s4: fixation of optical fibres
After the plurality of optical fibers 2 are completely inserted in the step S3, the optical fibers 2 are fixed by using an epoxy glue or a clamping mechanism.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the optical fiber end face 21 and the MT insertion core end face 12 are basically flush through laser cutting or bare optical fiber grinding, so that the condition that the optical fiber of the traditional MT optical fiber connector is obviously stressed is avoided, and the loss of the connector is minimized.
EXAMPLE III
As shown in fig. 4 to 6, a method for preparing a novel end-face coupling structure of a multi-core fiber connector includes the following steps:
s1 pretreatment of the end face of the optical fiber
The optical fiber end surfaces 21 of the optical fibers 2 are pretreated in a laser cutting or bare fiber grinding mode before being inserted into the optical fiber channel of the MT ferrule 1;
s2 micro-lens arranged in front of end face of optical fiber
Arranging a section of micro lens 4 at the front end of the optical fiber end face 21 pretreated in the step S1, so that light is collimated into parallel light after passing through the micro lens 4;
s3: production of an antireflection film
Coating the front end of the micro lens 4 in the step of S2 with an anti-reflection coating to form an anti-reflection film 3;
s4: limited flush insertion of optical fibers
The front end of the MT ferrule end face 12 is provided with a smooth mirror surface limit to ensure that the optical fiber end face 21 is relatively flush with the MT ferrule end face 12 after the optical fibers 2 are inserted, and then the optical fibers 2 processed in the step S3 are pushed by a proper clamp to be correspondingly inserted into an optical fiber channel inside the MT ferrule 1;
s5: fixation of optical fibres
After the plurality of optical fibers 2 are completely inserted in the step S4, the optical fibers 2 are fixed by using an epoxy glue or a clamping mechanism.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the optical fiber end face 21 and the MT insertion core end face 12 are basically flush through laser cutting or bare optical fiber grinding, so that the condition that the optical fiber of the traditional MT optical fiber connector is obviously stressed is avoided, and the loss of the connector is minimized.
The light spot is collimated into parallel light after passing through the micro lens 4, so that the light spot is no longer sensitive to the gap of the optical fiber end face 21, and the concave depth of the optical fiber end face 21 can be limited by setting the optical fiber stripping position.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The utility model provides a novel multicore fiber connector end face coupling structure which characterized in that, this end face coupling structure includes:
the MT ferrule (1) is provided with a polished MT ferrule end face (12), and a plurality of optical fiber channels penetrate inwards on the MT ferrule end face (12);
a plurality of optical fibers (2), each of said optical fibers (2) passing through a corresponding fiber passage within said MT ferrule (1) and terminating at a fiber end face (21) adjacent to said MT ferrule end face (12);
an antireflection film (3) coated on the optical fiber end surface (21);
the optical fiber end face (21) and the MT insertion core end face (12) are relatively flush or slightly sunken, and the optical fiber end face (21) is sunken by 0-99 nm relative to the MT insertion core end face (12).
2. The novel end-face coupling structure of multi-core optical fiber connector according to claim 1, characterized in that: two MT guide holes (11) penetrate through the MT insertion core end face (12) inwards, and the MT guide holes (11) are located on two sides of the optical fiber channel.
3. A preparation method of a novel end face coupling structure of a multi-core optical fiber connector is characterized by comprising the following steps: the method minimizes the fiber loss by controlling the amount of fiber end face (21) recess or collimating the light beam, minimizing the insertion loss of the MT fiber optic connector.
4. The method for preparing the end-face coupling structure of the novel multi-core optical fiber connector according to claim 3, is characterized by comprising the following steps:
s1 solidification treatment of optical fiber and MT inserting core
Correspondingly inserting a plurality of optical fibers (2) into the optical fiber channel of the MT insertion core (1), and then curing the optical fibers (2) and the MT insertion core (1) by using epoxy glue;
s2 flush processing of optical fiber end face and MT inserting core end face
Polishing the fiber end face (21) and the MT ferrule end face (12) solidified in the step S1 in a non-differential manner by using a cutting material, so that the fiber end face (21) and the MT ferrule end face (12) are basically flush, wherein the cutting material has no difference in the materials of the fiber (2) and the MT ferrule (1) and does not enable the fiber end face (21) to protrude out of the MT ferrule end face (12) remarkably;
s3 recessing of the end face of the optical fiber
Polishing the optical fiber end face (21) in the step S2 by using a polishing film embedded with 1 micron cerium oxide or silicon dioxide, so that the optical fiber end face (21) is sunken by 0-99 nm relative to the MT ferrule end face (12);
s4 preparation of antireflection film for optical fiber end face
After the polishing in the step S3 is finished, an antireflection coating is applied to the end face 21 of the optical fiber to form an antireflection film 3.
5. The method for preparing the end-face coupling structure of the novel multi-core optical fiber connector according to claim 3, is characterized by comprising the following steps:
s1 pretreatment of the end face of the optical fiber
The optical fiber end faces (21) of the optical fibers (2) are pretreated in a laser cutting or bare fiber grinding mode before being inserted into an optical fiber channel of the MT ferrule (1);
s2: production of antireflection film for optical fiber end face
Coating the optical fiber end face (21) pretreated in the step S1 with an antireflection coating to form an antireflection film (3);
s3: limited flush insertion of optical fibers
The front end of the MT insertion core end face (12) is provided with a smooth mirror surface limit to ensure that the optical fiber end face (21) is relatively flush with the MT insertion core end face (12) after a plurality of optical fibers (2) are inserted, and then a proper clamp is used for pushing the optical fibers (2) processed in the step S2 to be correspondingly inserted into an optical fiber channel inside the MT insertion core (1);
s4: fixation of optical fibres
After the plurality of optical fibers (2) are completely inserted in the step S3, the optical fibers (2) are fixed by using epoxy glue or a clamping mechanism.
6. The method for preparing the end-face coupling structure of the novel multi-core optical fiber connector according to claim 3, is characterized by comprising the following steps:
s1 pretreatment of the end face of the optical fiber
The optical fiber end faces (21) of the optical fibers (2) are pretreated in a laser cutting or bare fiber grinding mode before being inserted into an optical fiber channel of the MT ferrule (1);
s2 micro-lens arranged in front of end face of optical fiber
Arranging a section of micro lens (4) at the front end of the optical fiber end face (21) pretreated by the step S1, and collimating the light into parallel light after passing through the micro lens (4);
s3: production of an antireflection film
Coating an anti-reflection coating on the front end of the micro lens (4) in the step of S2 to form an anti-reflection film (3);
s4: limited flush insertion of optical fibers
The front end of the MT insertion core end face (12) is provided with a smooth mirror surface limit to ensure that the optical fiber end face (21) is relatively flush with the MT insertion core end face (12) after a plurality of optical fibers (2) are inserted, and then a proper clamp is used for pushing the optical fibers (2) processed in the step S3 to be correspondingly inserted into an optical fiber channel inside the MT insertion core (1);
s5: fixation of optical fibres
After the plurality of optical fibers (2) are completely inserted in the step S4, the optical fibers (2) are fixed by using epoxy glue or a clamping mechanism.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113985532A (en) * | 2021-10-26 | 2022-01-28 | 中山市博顿光电科技有限公司 | MT (Multi-terminal) ferrule and preparation method thereof |
| CN114415291A (en) * | 2022-03-14 | 2022-04-29 | 无限光通讯(深圳)有限公司 | Novel optical fiber connector |
| CN114624824A (en) * | 2022-02-22 | 2022-06-14 | 无限光通讯(深圳)有限公司 | Optical fiber connector with protection function |
| CN116609891A (en) * | 2023-06-02 | 2023-08-18 | 上海雍邑光电科技有限公司 | Method for assembling optical fiber connector |
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| CN104220912A (en) * | 2011-12-22 | 2014-12-17 | 艾瑞得光导纤维公司 | Non-contact optical fiber connector component |
| CN107144922A (en) * | 2017-07-03 | 2017-09-08 | 上海航天科工电器研究院有限公司 | A kind of high density circular expanded core fiber contact |
| CN108205177A (en) * | 2017-08-21 | 2018-06-26 | 中航光电科技股份有限公司 | A kind of MT plugs, MT plugs coupled structure and the connector using the MT plugs |
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| CN113985532A (en) * | 2021-10-26 | 2022-01-28 | 中山市博顿光电科技有限公司 | MT (Multi-terminal) ferrule and preparation method thereof |
| CN114624824A (en) * | 2022-02-22 | 2022-06-14 | 无限光通讯(深圳)有限公司 | Optical fiber connector with protection function |
| CN114415291A (en) * | 2022-03-14 | 2022-04-29 | 无限光通讯(深圳)有限公司 | Novel optical fiber connector |
| CN116609891A (en) * | 2023-06-02 | 2023-08-18 | 上海雍邑光电科技有限公司 | Method for assembling optical fiber connector |
| CN116609891B (en) * | 2023-06-02 | 2024-03-15 | 上海雍邑光电科技有限公司 | Method for assembling optical fiber connector |
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