CN110286447A - A kind of optical fiber beam expansion contact based on self-focusing lens - Google Patents
A kind of optical fiber beam expansion contact based on self-focusing lens Download PDFInfo
- Publication number
- CN110286447A CN110286447A CN201910602121.6A CN201910602121A CN110286447A CN 110286447 A CN110286447 A CN 110286447A CN 201910602121 A CN201910602121 A CN 201910602121A CN 110286447 A CN110286447 A CN 110286447A
- Authority
- CN
- China
- Prior art keywords
- contact pin
- self
- optical fiber
- focusing lens
- porcelain bushing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 39
- 239000000919 ceramic Substances 0.000 claims abstract description 35
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 32
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 13
- 239000007767 bonding agent Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- 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
- G02B6/3853—Lens inside the ferrule
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a kind of optical fiber beam expansion contact based on self-focusing lens, the contact pin flange including the porcelain bushing with lens, with ceramic contact pin；The porcelain bushing with lens includes self-focusing lens and porcelain bushing, and self-focusing lens is bonded in the left end of porcelain bushing, and there are gaps for the left side of self-focusing lens and porcelain bushing；The contact pin flange with ceramic contact pin includes ceramic contact pin and contact pin flange；Contact pin flange 4 includes level-one stepped hole and two stage steps hole；Bare fibre is inserted in ceramic contact pin, optical fiber is linked together with ceramic contact pin；In the two stage steps hole of ceramic contact pin right end force fit contact pin flange；4 right end of contact pin flange is equipped with the round vestibule that optical fiber passes through；Contact pin flange with ceramic contact pin forms optical fiber contact pins body in conjunction with optical fiber；Porcelain bushing right end is bonded in the level-one stepped hole of contact pin flange；Ceramic contact pin and self-focusing lens are to connect.
Description
Technical field
The present invention relates to a kind of optical fiber beam expansion contact based on self-focusing lens, belongs to optical fiber connector technical field.
Background technique
Extending type optical fiber connector is a kind of novel optical fiber connector, and the difference of it and conventional termination formula optical fiber connector exists
Focusing effect is expanded in what its contact was combined with lens, realizes the non-contact transmission of optical signal.Extending type optical fiber connector
The features such as performance and contactless connection are expanded because its is good, it has also become the first choice under harsh environment.Contactless structure is set
Meter ensure that signal transmission still has high reliability in harsh environment.Signal transmits after beam-expanding collimation, it can be achieved that short distance
Variation it is insensitive, this characteristic ensure that under high vibration, shock environment, signal transmission do not interrupt.In addition, optical signal
Light beam may be implemented through extending type optical fiber connector and expand tens~hundred times, fine pollutants influence quilt for the transmission of signal
It substantially reduces.Extending type optical fiber connector common at present has globe lens by encapsulating collimator or dress in connector vestibule
Contact, realization expand function.But the former is limited to the packaged type and material of collimator, it is difficult to realize unloading, reprocess, no
Conducive to the environment for needing live unloading, reprocessing；The latter is higher to requirement on machining accuracy since the requirement of globe lens focusing limits,
It is currently limited by part processing precision, is not possible to guarantee that optical property stablizes low-loss transmission.
Summary of the invention
In view of the above problems, the present invention provides a kind of optical fiber beam expansion contact based on self-focusing lens.
In order to solve problem above, present invention employs following technical solutions: a kind of optical fiber expansion based on self-focusing lens
Beam contact, which is characterized in that the contact pin flange including the porcelain bushing with lens, with ceramic contact pin；
The porcelain bushing with lens includes self-focusing lens and porcelain bushing, and self-focusing lens is bonded in ceramic jacket
In the left end of pipe, and there are gaps for the left side of self-focusing lens and porcelain bushing；
The contact pin flange with ceramic contact pin includes ceramic contact pin and contact pin flange；Contact pin flange includes level-one step
Hole and two stage steps hole；Bare fibre is inserted in ceramic contact pin, optical fiber is linked together with ceramic contact pin；Ceramic contact pin right end interference
It is pressed into the two stage steps hole of contact pin flange；Contact pin flange right end is equipped with the round vestibule that optical fiber passes through；Inserting with ceramic contact pin
Skill of handling needles orchid forms traditional optical fiber contact pins body in conjunction with optical fiber；
Porcelain bushing right end is bonded in the level-one stepped hole of contact pin flange；Ceramic contact pin is the company of contact with self-focusing lens
It connects, no longer needs to focus in this way, realize automatic focus.
The adhesives is using 353ND or equivalent bonding agent.
The cross section of the porcelain bushing is O shape or C-shaped.The present invention is preferably O shape cross section, compared to c-shaped sleeve,
O shape casing can provide sealed environment for self-focusing lens end face and fiber end face, prevent dust from entering, influence optical property
The self-focusing lens pitch is 0.25P (1/4 pitch), and lens focus is located on self-focusing lens end face, is guaranteed
It is fallen in the focus of self-focusing lens by 95% or more the light projected in the optical fiber in ceramic contact pin and to be coupled into self-focusing saturating
In mirror.
The lens both ends of the surface of the self-focusing lens can plate the anti-reflection film of identical optical wavelength, improve coupling efficiency.
The fiber end face can plate identical optical wavelength anti-reflection film, promote optical signal transmissivity, reduce reflection.
The present invention has the advantage that compared with the immediate prior art
The present invention realizes that termination couples with optical fiber using 0.25P (1/4 pitch) self-focusing lens.
1, contact is expanded compared to existing globe lens, without accurately controlling the position of fiber end face and lens focus, can dropped
The required precision of low production and processing promotes contact production efficiency；
2, compared to the connector technique of existing encapsulation collimator, the present invention can support contact to separate with connector unloading,
The maintainability of external field environment can effectively be promoted.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the porcelain bushing of the invention with lens；
Fig. 2 is the structural schematic diagram of the contact pin flange of the invention with ceramic contact pin；
Fig. 3 is the structural schematic diagram of optical fiber beam expansion contact of the invention.
Wherein, 1 it is self-focusing lens, 2 be porcelain bushing, 3 be ceramic contact pin, 4 be contact pin flange, 41 is level-one step
Hole, 42 be two stage steps hole, 43 be round vestibule, 5 be gap, 6 be the abutting edge of self-focusing lens and porcelain bushing, 7 be pottery
The abutting edge of porcelain bushing shell and porcelain bushing.
Specific embodiment
Invention is further described in detail below.
As shown in Figures 1 to 3, the present invention provides a kind of optical fiber beam expansion contact based on self-focusing lens, including band lens
Porcelain bushing, the contact pin flange with ceramic contact pin；
As shown in Figure 1, the porcelain bushing with lens includes self-focusing lens 1 and porcelain bushing 2, self-focusing lens
1 is bonded in the left end of porcelain bushing 2 by 353ND or equivalent bonding agent, and the left end of self-focusing lens 1 and porcelain bushing 2
There are gaps 5 in face；The porcelain bushing 2 is silent casing, i.e., cross section is O shape.
As shown in Fig. 2, the contact pin flange with ceramic contact pin includes ceramic contact pin 3 and contact pin flange 4；Contact pin flange
4 include level-one stepped hole 41 and two stage steps hole 42；Bare fibre is inserted in ceramic contact pin, optical fiber and ceramic contact pin are linked as one
Body；In the two stage steps hole 42 of 3 right end force fit contact pin flange 4 of ceramic contact pin；4 right end of contact pin flange is equipped with what optical fiber passed through
Round vestibule 43；Contact pin flange with ceramic contact pin forms traditional optical fiber contact pins body in conjunction with optical fiber；
Porcelain bushing right end is bonded in the level-one stepped hole 41 of contact pin flange；Ceramic contact pin 3 is to connect with self-focusing lens 1
Touching connection, no longer needs to focus in this way, realizes automatic focus.
When optical source wavelength is 850nm, the lens both ends of the surface of self-focusing lens can plate the anti-reflection of 850nm optical wavelength
Film.
When optical source wavelength is 850nm, fiber end face can plate 850nm optical wavelength anti-reflection film.
The foregoing is only a preferred embodiment of the present invention, is not restricted to the present invention, for the technology of this field
For personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (6)
1. a kind of optical fiber beam expansion contact based on self-focusing lens, which is characterized in that including the porcelain bushing with lens, band pottery
The contact pin flange of porcelain contact pin；
The porcelain bushing with lens includes self-focusing lens and porcelain bushing, and self-focusing lens is bonded in porcelain bushing
In left end, and there are gaps for the left side of self-focusing lens and porcelain bushing；
The contact pin flange with ceramic contact pin includes ceramic contact pin and contact pin flange；Contact pin flange 4 includes level-one stepped hole
With two stage steps hole；Bare fibre is inserted in ceramic contact pin, optical fiber is linked together with ceramic contact pin；Ceramic contact pin right end interference pressure
Enter in the two stage steps hole of contact pin flange；4 right end of contact pin flange is equipped with the round vestibule that optical fiber passes through；Contact pin with ceramic contact pin
Flange forms optical fiber contact pins body in conjunction with optical fiber；
Porcelain bushing right end is bonded in the level-one stepped hole of contact pin flange；Ceramic contact pin and self-focusing lens are to connect.
2. described a kind of optical fiber beam expansion contact based on self-focusing lens according to claim 1, which is characterized in that described
Adhesives is using 353ND or equivalent bonding agent.
3. described a kind of optical fiber beam expansion contact based on self-focusing lens according to claim 1, which is characterized in that described
The cross section of porcelain bushing is O shape or C-shaped.
4. described a kind of optical fiber beam expansion contact based on self-focusing lens according to claim 1, which is characterized in that it is described from
Condenser lens pitch is 0.25P, and 1/4 pitch, lens focus is located on self-focusing lens end face.
5. described a kind of optical fiber beam expansion contact based on self-focusing lens according to claim 1, which is characterized in that it is described from
The lens both ends of the surface of condenser lens are coated with the anti-reflection film of identical optical wavelength.
6. described a kind of optical fiber beam expansion contact based on self-focusing lens according to claim 1, which is characterized in that the light
Fine end face is coated with identical optical wavelength anti-reflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602121.6A CN110286447A (en) | 2019-07-05 | 2019-07-05 | A kind of optical fiber beam expansion contact based on self-focusing lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910602121.6A CN110286447A (en) | 2019-07-05 | 2019-07-05 | A kind of optical fiber beam expansion contact based on self-focusing lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110286447A true CN110286447A (en) | 2019-09-27 |
Family
ID=68020642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910602121.6A Pending CN110286447A (en) | 2019-07-05 | 2019-07-05 | A kind of optical fiber beam expansion contact based on self-focusing lens |
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| Country | Link |
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| CN (1) | CN110286447A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175916A (en) * | 2020-02-21 | 2020-05-19 | 北京航空航天大学 | Pluggable hollow anti-resonance optical fiber coupling method and device |
| CN111474638A (en) * | 2020-06-05 | 2020-07-31 | 上海航天科工电器研究院有限公司 | Structure and manufacturing process of plug-in beam expanding contact element |
| CN111505773A (en) * | 2020-05-13 | 2020-08-07 | 上海航天科工电器研究院有限公司 | Reinforced anti-rotation beam expanding optical fiber contact |
| CN113219595A (en) * | 2021-03-29 | 2021-08-06 | 杭州航天电子技术有限公司 | Detachable beam expanding type optical fiber contact element |
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| JP2002182062A (en) * | 2000-12-18 | 2002-06-26 | Fujikura Ltd | Connector type optical multiplexer/demultiplexer |
| CN2522880Y (en) * | 2001-11-23 | 2002-11-27 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber collimating apparatus |
| CN1421717A (en) * | 2001-11-23 | 2003-06-04 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber collimator and its making process |
| CN109425939A (en) * | 2017-09-01 | 2019-03-05 | 中航光电科技股份有限公司 | Optic fibre switching socket, optic fibre switching contact and fiber optic connector assembly |
| CN109425940A (en) * | 2017-09-01 | 2019-03-05 | 中航光电科技股份有限公司 | A kind of fiber optic connector assembly and its optical fiber connector, contact |
| CN210072140U (en) * | 2019-07-05 | 2020-02-14 | 南京全信传输科技股份有限公司 | Optical fiber beam expanding contact element based on self-focusing lens |
-
2019
- 2019-07-05 CN CN201910602121.6A patent/CN110286447A/en active Pending
Patent Citations (6)
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| JP2002182062A (en) * | 2000-12-18 | 2002-06-26 | Fujikura Ltd | Connector type optical multiplexer/demultiplexer |
| CN2522880Y (en) * | 2001-11-23 | 2002-11-27 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber collimating apparatus |
| CN1421717A (en) * | 2001-11-23 | 2003-06-04 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber collimator and its making process |
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| CN210072140U (en) * | 2019-07-05 | 2020-02-14 | 南京全信传输科技股份有限公司 | Optical fiber beam expanding contact element based on self-focusing lens |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175916A (en) * | 2020-02-21 | 2020-05-19 | 北京航空航天大学 | Pluggable hollow anti-resonance optical fiber coupling method and device |
| CN111175916B (en) * | 2020-02-21 | 2021-01-26 | 北京航空航天大学 | Pluggable hollow anti-resonance optical fiber coupling method and device |
| CN111505773A (en) * | 2020-05-13 | 2020-08-07 | 上海航天科工电器研究院有限公司 | Reinforced anti-rotation beam expanding optical fiber contact |
| CN111505773B (en) * | 2020-05-13 | 2022-02-08 | 上海航天科工电器研究院有限公司 | Reinforced anti-rotation beam expanding optical fiber contact |
| CN111474638A (en) * | 2020-06-05 | 2020-07-31 | 上海航天科工电器研究院有限公司 | Structure and manufacturing process of plug-in beam expanding contact element |
| CN113219595A (en) * | 2021-03-29 | 2021-08-06 | 杭州航天电子技术有限公司 | Detachable beam expanding type optical fiber contact element |
| CN113219595B (en) * | 2021-03-29 | 2023-10-10 | 杭州航天电子技术有限公司 | Detachable beam-expanding type optical fiber contact |
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