CN105445867A - Detachable beam-expanding fiber optic connector - Google Patents
Detachable beam-expanding fiber optic connector Download PDFInfo
- Publication number
- CN105445867A CN105445867A CN201510981200.4A CN201510981200A CN105445867A CN 105445867 A CN105445867 A CN 105445867A CN 201510981200 A CN201510981200 A CN 201510981200A CN 105445867 A CN105445867 A CN 105445867A
- Authority
- CN
- China
- Prior art keywords
- lens
- outer tube
- optical fiber
- expanded core
- joints
- 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
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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
- G02B6/36—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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to a detachable beam-expanding fiber optic connector and belongs to the non-contact beam expanding optical fiber connector field. The detachable beam-expanding fiber optic connector includes an outer casing for mounting a lens; when the lens is bonded and fixed, the front end surface of the lens is retreated by a certain distance relative to the front end of the outer casing, so that the lens can be prevented from being damaged in a butt-joint process; and the rear portion of the lens in the outer casing is provided with an inner casing for fixing an optical fiber; the outer casing is mounted in a tail seat. When two outer casings are in butt-joint with each other in a sleeve, springs behind the tail seats can provide a butt-joint holding force, and tail sleeves behind pressing rings provide protection for an optical cable. According to the detachable beam-expanding fiber optic connector of the invention, the precise casings and sleeve are adopted to perform optical alignment, and low-loss transmission of light beams can be realized, and the processing and assembling difficulty of the connector can be reduced; and the components of the connector are convenient to disassemble and clean. The detachable beam-expanding fiber optic connector has the advantage of excellent environment resistance performance of a traditional non-contact optical fiber connector.
Description
Technical field
The present invention relates to and contactlessly expand formula joints of optical fibre field, particularly a kind of detachable type expanded core fiber connector.
Background technology
The joints of optical fibre are generally divided into physical connection formula and expand formula; The physical connection formula joints of optical fibre are zero stand-off between two docking fiber end faces; The advantage of this connected mode is that continuous loss is low, and weak point is, to the sensitivity such as pollutant, dust, in addition repeatedly inserting time optical fiber end subject to damage, optical property declines, and hinders the transmission of light signal in communication link.
Expanding the formula joints of optical fibre makes the light diameter of imaging amplify more than 1000 times by expanding principle, and optics end face, without the need to direct contact, is not therefore afraid of pollutant effects, compensate for the deficiency of convention connectors.At present, tradition expands the precision-fit of the formula joints of optical fibre many employings external guidance post and guide hole to realize the optical alignment between lens, and in this structure, extender lens is generally bonded and fixed in the housing of plug and socket, and cannot dismantle, maintenanceability is poor; Tradition expands in formula fibre-optic connector structure in addition, requires too high to parameters precisions such as the extender lens mounting hole size of housing and position degrees, cause part to be processed and assembly difficulty large, and alignment precision is low, and the typical loss of connector is generally 2dB.
Summary of the invention
The object of the invention is to the above-mentioned deficiency overcoming prior art, provide a kind of detachable type expanded core fiber connector, reduce processing and assembly difficulty, loss is low, is easy to Multi-core number integrated.
Above-mentioned purpose of the present invention is achieved by following technical solution:
A kind of detachable type expanded core fiber connector, comprises extender lens, lens outer tube, optical fiber, optical fiber inner sleeve, tailstock, spring; Wherein, it is inner that extender lens is coaxially fixed on lens outer tube, and lens outer tube is wrapped in the outer wall of extender lens; Between the front end face of extender lens front end face and lens outer tube, air-gap is set; It is inner that optical fiber inner sleeve is coaxially fixedly mounted on lens outer tube, and lens outer tube is wrapped in the outer wall of optical fiber inner sleeve, and optical fiber inner sleeve is fixedly connected with extender lens one end; Optical fiber is fixed on optical fiber inner sleeve axial line position; Tailstock is fixedly mounted on the outer wall of lens outer tube; Spring is fixedly mounted on one end of tailstock.
At above-mentioned a kind of detachable type expanded core fiber connector, described air-gap axial length is 0.001mm-10mm.
At above-mentioned a kind of detachable type expanded core fiber connector, the endoporus of described lens outer tube is provided with chamfering, and chamfer angle is 5-80 °.
At above-mentioned a kind of detachable type expanded core fiber connector, described lens outer tube and optical fiber inner sleeve material are the material with optical fiber similar thermal expansion coefficient.
At above-mentioned a kind of detachable type expanded core fiber connector, can arrange pressure ring at spring away from one end of tailstock, one end of pressure ring is installed with tail cover.
At above-mentioned a kind of detachable type expanded core fiber connector, pressure ring cross section is in the axial direction forge piece of step type structure, and one end band of tail cover is fluted, and the groove fit that axial one end of pressure ring and tail overlap is installed.
At above-mentioned a kind of detachable type expanded core fiber connector, during two joints of optical fibre docking, sleeve symmetry is wrapped in the outer wall of two extender lens joints.
At above-mentioned a kind of detachable type expanded core fiber connector, when n docks the joints of optical fibre, wherein the lens outer tube outer wrap of n the joints of optical fibre sleeve, and be arranged in the plug casing mounting hole of plug casing side by side, the end of plug casing is provided with cover plate; The tailstock of n the joints of optical fibre and spring are arranged in the Socket casing mounting hole of Socket casing side by side in addition, and the end of spring is provided with cover plate, and the end of Socket casing is provided with the butt hole matched with plug casing, realize the insertion docking of plug casing; N be not less than 2 positive integer.
At above-mentioned a kind of detachable type expanded core fiber connector, when the end of the joints of optical fibre is provided with pressure ring and tail cover, plug casing mounting hole and Socket casing mounting hole inwall can be provided with syndeton, realize being connected with pressure ring and dismantling.
The present invention compared with prior art tool has the following advantages:
(1) the present invention adopts and is packaged in Prescription lenses outer tube by extender lens, when lens outer tube docks in precision-sleeve, can realize the low-loss docking of light beam, effectively reduce the difficulty of processing of part between extender lens;
(2) the present invention adopts the structure of reserved air-gap between extender lens and lens outer tube front end face, realizes the contactless docking of light beam, effectively reduces the assembly difficulty of product;
(3) endoporus of lens outer tube of the present invention is provided with the chamfering of 5-80 °, effectively prevents extender lens emergent light from being blocked, achieves the low-loss transmission of light beam;
(4) the present invention is provided with pressure ring and tail cover in the end of detachable type expanded core fiber connector, by the rotation process overlapped tail, can facilitate the installation and removal of the joints of optical fibre;
(5) the present invention is provided with the syndeton with pressure ring at the mounting hole of plug casing and the mounting hole inwall of Socket casing, can realize the installation and removal of the joints of optical fibre.
Accompanying drawing explanation
Fig. 1 is fibre-optic connector structure schematic diagram of the present invention;
Fig. 2 is the fibre-optic connector structure schematic diagram of the present invention with pressure ring, tail cover;
Fig. 3 is the present invention's a pair joints of optical fibre docking schematic diagram;
Fig. 4 is the multipair fibre-optic connector structure schematic diagram of the present invention;
Fig. 5 is the multipair fibre-optic connector structure schematic diagram with pressure ring, tail cover of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Be illustrated in figure 1 fibre-optic connector structure schematic diagram, as seen from the figure, comprise extender lens 1, lens outer tube 2, optical fiber 3, optical fiber inner sleeve 4, cementing agent 5, tailstock 6, spring 7; Wherein, it is inner that extender lens 1 is fixed on lens outer tube 2, and extender lens 1 is coaxial with lens outer tube 2, and lens outer tube 2 is wrapped in the outer wall of extender lens 1; Arrange air-gap 11 between the front end face of extender lens 1 front end face and lens outer tube 2, air-gap 11 axial length is 0.001mm-10mm; It is inner that optical fiber inner sleeve 4 is fixedly mounted on lens outer tube 2, and optical fiber inner sleeve 4 is coaxial with lens outer tube 2, and lens outer tube 2 is wrapped in the outer wall of optical fiber inner sleeve 4, and optical fiber inner sleeve 4 is fixedly connected with extender lens 1 one end; Optical fiber 3 is fixed on optical fiber inner sleeve 4 axial line position; Tailstock 6 is fixedly mounted on the outer wall of lens outer tube 2; Spring 7 is fixedly mounted on one end of tailstock 6.
Extender lens 1 uses cementing agent 5 to be fixed in lens outer tube 2, when fixing, the front end face indentation certain distance of the front end face distance lens outer tube 2 of extender lens 1, the Front-end Design chamfering of lens outer tube 2, chamfer angle is 5-80 °, prevents the input/output light beam of extender lens 1 limited.Optical fiber 3 uses cementing agent 5 to be fixed in optical fiber inner sleeve 4, and wherein optical fiber 3 can carry out polishing and coating film treatment before loading optical fiber inner sleeve 4, also after loading optical fiber inner sleeve 4, can carry out polishing and coating film treatment together.Fine adjustment loads the position of optical fiber inner sleeve 4 in lens outer tube 2 of optical fiber 3, when the beam quality that extender lens 1 exports meets decoupling calls, utilizes cementing agent 5 to be fixed in lens outer tube 2 by optical fiber inner sleeve 4.Afterwards, tailstock 6 is tightly placed on lens outer tube 2, and from cementing agent 5 embedding of its afterbody, to protect the optical cable of optical fiber inner sleeve 4 afterbody.Finally be enclosed within tailstock 6 by spring 7, pressing spring 7 can provide docking confining force.
Lens outer tube 2 and optical fiber inner sleeve 4 material are the material with optical fiber similar thermal expansion coefficient.
Be illustrated in figure 2 the fibre-optic connector structure schematic diagram with pressure ring, tail cover, as seen from the figure, can pressure ring 8 away from one end of tailstock 6 at spring 7, pressure ring 8 designs the demountable structures such as screw thread, key or grab, without dismantling device, can assemble easily and between respective housings.At the afterbody bonding tail cover 9 of pressure ring 8, when bending occurs optical cable, tail cover 9 can discharge bending stress, docks be not affected to protect optics.
Pressure ring 8 cross section is in the axial direction forge piece of step type structure, and one end band of tail cover 9 is fluted, and the groove fit that axial one end of pressure ring 8 and tail overlap 9 is installed.
Be illustrated in figure 3 a pair joints of optical fibre docking schematic diagram, as seen from the figure, during two joints of optical fibre docking, sleeve 10 symmetry is wrapped in the outer wall of two extender lens 1 joints; The low-loss utilizing the precision-fit between two lens outer tubes 2 and sleeve 10 to realize between two extender lenses 1 is docked, and provides docking confining force by two springs 7.In addition, because the front end face of two extender lenses 1 is relative to front end face all indentation certain distances of lens outer tube 2, when two lens outer tubes 2 contact, between two extender lenses 1, there is certain air-gap 11, realize noncontact docking like this.
Be illustrated in figure 4 multipair fibre-optic connector structure schematic diagram, as seen from the figure, when n docks the joints of optical fibre, wherein lens outer tube 2 outer wrap of n the joints of optical fibre sleeve 10, be arranged in the plug casing mounting hole 13 of plug casing 12 side by side, the end of plug casing 12 is provided with cover plate 14, is used for fixing expanded core fiber connector; Fixed form between cover plate 14 and Socket casing 12, can adopt and be screwed or the method such as cementing agent is fixing;
The tailstock 6 of n the joints of optical fibre and spring 7 are arranged in the Socket casing mounting hole 16 of Socket casing 15 side by side in addition, the end of spring 7 is provided with cover plate 14, the end of Socket casing 15 is provided with the butt hole 17 matched with plug casing 12, realizes the insertion docking of plug casing 15; N be not less than 2 positive integer.
Multiple expanded core fiber connector and sleeve 10 are loaded in the plug casing mounting hole 13 of plug casing 12, cover plate 14 is utilized to fix expanded core fiber connector, fixed form between cover plate 14 and plug casing 12, also can adopt and be screwed or the method such as cementing agent is fixing.After plug casing 12 inserts Socket casing 15, enter in sleeve 10 under the elastic force effect that expanded core fiber connector provides at spring 7, dock with the joints of optical fibre in plug casing 12; Plug casing 12 and Socket casing 15 are fixed by locking mechanism and pin.
Be illustrated in figure 5 the multipair fibre-optic connector structure schematic diagram with pressure ring, tail cover, as seen from the figure, when the end of the joints of optical fibre is provided with pressure ring 8 and tail overlaps 9, plug casing mounting hole 13 and Socket casing mounting hole 16 inwall can be provided with syndeton, realize being connected with pressure ring 8 and dismantling.
Load in the Socket casing mounting hole 16 of Socket casing 15 by multiple detachable expanded core fiber connector, detachable expanded core fiber connector is fixed by the demountable structures such as screw thread, key or the grab on pressure ring 8 and Socket casing 15.
Multiple detachable expanded core fiber connector and sleeve 10 are loaded the plug casing mounting hole 13 of plug casing 12, detachable expanded core fiber connector is fixed by the demountable structures such as screw thread, key or the grab on pressure ring 8 and plug casing 12.After plug casing 12 inserts Socket casing 15, enter in sleeve 10 under the elastic force effect that detachable expanded core fiber connector provides at spring 7, dock with the detachable expanded core fiber connector in plug casing 12.Plug casing 12 and Socket casing 15 are also fixed by locking mechanism and pin.
The content be not described in detail in instructions of the present invention belongs to the known technology of those skilled in the art.
Claims (9)
1. a detachable type expanded core fiber connector, it is characterized in that: comprise extender lens (1), lens outer tube (2), optical fiber (3), optical fiber inner sleeve (4), tailstock (6), spring (7); Wherein, it is inner that extender lens (1) is coaxially fixed on lens outer tube (2), and lens outer tube (2) is wrapped in the outer wall of extender lens (1); Air-gap (11) is set between the front end face of extender lens (1) front end face and lens outer tube (2); It is inner that optical fiber inner sleeve (4) is coaxially fixedly mounted on lens outer tube (2), lens outer tube (2) is wrapped in the outer wall of optical fiber inner sleeve (4), and optical fiber inner sleeve (4) is fixedly connected with extender lens (1) one end; Optical fiber (3) is fixed on optical fiber inner sleeve (4) axial line position; Tailstock (6) is fixedly mounted on the outer wall of lens outer tube (2); Spring (7) is fixedly mounted on one end of tailstock (6).
2. a kind of detachable type expanded core fiber connector according to claim 1, is characterized in that: described air-gap (11) axial length is 0.001mm-10mm.
3. a kind of detachable type expanded core fiber connector according to claim 1, is characterized in that: the endoporus of described lens outer tube (2) is provided with chamfering, and chamfer angle is 5-80 °.
4. a kind of detachable type expanded core fiber connector according to claim 1, is characterized in that: described lens outer tube (2) and optical fiber inner sleeve (4) material are the material with optical fiber similar thermal expansion coefficient.
5. a kind of detachable type expanded core fiber connector according to claim 1, it is characterized in that: can arrange pressure ring (8) at spring (7) away from one end of tailstock (6), one end of pressure ring (8) is installed with tail cover (9).
6. a kind of detachable type expanded core fiber connector according to claim 5, it is characterized in that: pressure ring (8) cross section is in the axial direction forge piece of step type structure, one end band of tail cover (9) is fluted, and axial one end of pressure ring (8) and the groove fit of tail cover (9) are installed.
7. a kind of detachable type expanded core fiber connector according to claim 1, is characterized in that: during two joints of optical fibre docking, sleeve (10) symmetry is wrapped in the outer wall of two extender lens (1) joints.
8. a kind of detachable type expanded core fiber connector according to claim 7, it is characterized in that: when n docks the joints of optical fibre, wherein lens outer tube (2) outer wrap of n the joints of optical fibre sleeve (10), be arranged in the plug casing mounting hole (13) of plug casing (12) side by side, the end of plug casing (12) is provided with cover plate (14); The tailstock (6) of n the joints of optical fibre and spring (7) are arranged in the Socket casing mounting hole (16) of Socket casing (15) side by side in addition, the end of spring (7) is provided with cover plate (14), the end of Socket casing (15) is provided with the butt hole (17) matched with plug casing (12), realizes the insertion docking of plug casing (15); N be not less than 2 positive integer.
9. a kind of detachable type expanded core fiber connector according to claim 8, it is characterized in that: when the end of the joints of optical fibre is provided with pressure ring (8) and tail cover (9), plug casing mounting hole (13) and Socket casing mounting hole (16) inwall can be provided with syndeton, realize being connected with pressure ring (8) and dismantling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981200.4A CN105445867A (en) | 2015-12-23 | 2015-12-23 | Detachable beam-expanding fiber optic connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981200.4A CN105445867A (en) | 2015-12-23 | 2015-12-23 | Detachable beam-expanding fiber optic connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105445867A true CN105445867A (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510981200.4A Pending CN105445867A (en) | 2015-12-23 | 2015-12-23 | Detachable beam-expanding fiber optic connector |
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| Country | Link |
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| CN (1) | CN105445867A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772828A (en) * | 2016-12-08 | 2017-05-31 | 中国航天时代电子公司 | A kind of contactless optical fiber connector |
| WO2018076500A1 (en) * | 2016-10-27 | 2018-05-03 | 武汉光迅科技股份有限公司 | Gravity adapted fibre connector |
| CN109425938A (en) * | 2017-09-01 | 2019-03-05 | 中航光电科技股份有限公司 | A kind of optical fiber connector and fiber optic connector assembly |
| 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 |
| CN110471145A (en) * | 2019-09-06 | 2019-11-19 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of expanded core fiber bonder terminal |
| CN110989098A (en) * | 2019-12-31 | 2020-04-10 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Beam expanding type photoelectric hybrid connector |
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| US4925267A (en) * | 1984-07-02 | 1990-05-15 | Polaroid Corporation | Structure and fabrication of components for connecting optical fibers |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018076500A1 (en) * | 2016-10-27 | 2018-05-03 | 武汉光迅科技股份有限公司 | Gravity adapted fibre connector |
| US10684421B2 (en) | 2016-10-27 | 2020-06-16 | Accelink Technologies Co., Ltd. | Gravity adapted fiber connecter |
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| CN109425938A (en) * | 2017-09-01 | 2019-03-05 | 中航光电科技股份有限公司 | A kind of optical fiber connector and fiber optic connector assembly |
| 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 |
| CN110471145A (en) * | 2019-09-06 | 2019-11-19 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | A kind of expanded core fiber bonder terminal |
| CN110989098A (en) * | 2019-12-31 | 2020-04-10 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Beam expanding type photoelectric hybrid connector |
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Application publication date: 20160330 |