CN103901545B - A kind of lens are from coupled mode fiber adapter - Google Patents
A kind of lens are from coupled mode fiber adapter Download PDFInfo
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- CN103901545B CN103901545B CN201410107217.2A CN201410107217A CN103901545B CN 103901545 B CN103901545 B CN 103901545B CN 201410107217 A CN201410107217 A CN 201410107217A CN 103901545 B CN103901545 B CN 103901545B
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- fibre core
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- limiting tube
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Abstract
The present invention addresses a kind of lens from coupled mode fiber adapter, including a coupled lens group, a lens sleeve, a thick fibre core flange, a thin fibre core flange, a thick fibre core position-limiting tube and a thin fibre core position-limiting tube；Described coupled lens group is encapsulated in inside lens sleeve by cementation method；The centre bore of described thick fibre core flange and thin fibre core flange is the centre bore with interior step, the centre bore docking of the interior step of described thick fibre core flange and thin fibre core flange, described lens sleeve cunning is joined fixing, fastened by screw or cementation method encapsulation, described thick fibre core position-limiting tube is fixed on the central hole of described thick fibre core flange, and described thin fibre core position-limiting tube is fixed on the central hole of described thin fibre core flange.The present invention can be used for core diameter and do not mates the optical coupling between optical fiber, uses the light path system being made up of multi-disc optical lens to carry out expanding or contracting bundle optical coupling, it is adaptable to different core optical fibers wire jumpers patch connection.
Description
Technical field
The present invention addresses a kind of lens from coupled mode fiber adapter, genus field of photoelectric technology.
Background technology
Along with modern fiber optic communication and the development of optical fiber sensing technology and the further of application are goed deep into, various optical fibre devices emerge in an endless stream, the either data transmission of optical fiber, Fibre Optical Sensor, the transmission of laser energy, is required for experiencing the optical coupling process between laser instrument and optical fiber, between optical fiber and optical fiber.
At present, conventional optical coupling mode has following several:
(1) Space Coupling between laser instrument and optical fiber, i.e. laser are injected in optical fiber after assembling at the dielectric space transmission such as air, optically coupled lens, complete the transmission of laser.Which is the highest to the stability requirement of whole light path devices, is substantially and manually couples injection, wastes time and energy, and owing at space propagation, coupling efficiency is relatively low, the insertion loss of light is the biggest.
(2) being of coupled connections by standard adapter (flange) between optical fiber and optical fiber, this coupling only needs to select the flange inserting optical patchcord head dummy number coupling with two ends to dock can realize coupling of optical fiber and optical fiber, although it is convenient, laborsaving and junction loss is relatively low, but requiring that adapter two ends fiber core must be consistent, otherwise fiber core mismatch can increase light path coupling loss.
Summary of the invention
It is an object of the invention to the problem of different core optical fibers light path couplings in optical fiber telecommunications system or optical fiber sensing system that solves, it is provided that a kind of lens are from coupled mode fiber adapter.This fiber adapter uses flange connection to facilitate the docking of optical fiber, battery of lens within fiber adapter can use multi-disc optical lens complete the coupling between thick core optical fibers and fine core diameter optical fiber and eliminate the aberration of light path focusing, aberration etc. simultaneously, adds 8 ° of mirrors and also can improve the return loss of light path in lens.
For reaching above-mentioned purpose, the present invention uses following technical proposals:
A kind of lens are from coupled mode fiber adapter, including a coupled lens group, a lens sleeve, a thick fibre core flange, a thin fibre core flange, a thick fibre core position-limiting tube and a thin fibre core position-limiting tube；Described coupled lens group is encapsulated in inside lens sleeve by cementation method；The centre bore of described thick fibre core flange and thin fibre core flange is the centre bore with interior step, the centre bore docking of the interior step of described thick fibre core flange and thin fibre core flange, described lens sleeve cunning is joined fixing, fastened by screw or cementation method encapsulation, described thick fibre core position-limiting tube is fixed on the central hole of described thick fibre core flange, and described thin fibre core position-limiting tube is fixed on the central hole of described thin fibre core flange.
Described coupled lens group is a piece of or several optical lenses, it is possible to realize the optical coupling between thick fibre core and thin fibre core.
Described thick fibre core flange and thin fibre core flange are two panels modular flange, and flange end head dummy number is FC, ST or SMA.
Described thick fibre core position-limiting tube, thin fibre core position-limiting tube respectively sidewall have c-type cylinder high density ceramic pipe or the metal tube of groove.
The operation principle of the present invention:
In optical fiber sensing system or optical fiber telecommunications system, thick doped core optical fiber and thin doped core optical fiber are inserted respectively the lens matched two ends flange-interface from coupled mode fiber adapter.When laser fiber-optic transfer unmatched from core diameter, lens coupled lens group in coupled mode fiber adapter just can complete to expand coupling (thin fibre core transmits) or contracting bundle coupling (thick fibre core transmits to thin fibre core) to thick fibre core, thus eliminate core diameter and do not mate the excessive impact on optical transport of the insertion loss caused.Meanwhile, battery of lens inserts 8 ° of lens and also can increase return loss, eliminate and light path reflects the light impact on transmission.
The present invention compared with prior art, has and the most obviously highlights substantive distinguishing features and remarkable advantage:
(1) optical fiber patches, simple to operate；
(2) easy for installation, take up room little；
(3) improve core diameter and do not mate the coupling operational efficiency of optical fiber.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of one embodiment of the invention.
Detailed description of the invention
A preferred embodiment of the present invention accompanying drawings are as follows:
Seeing Fig. 1, a kind of lens are from coupled mode fiber adapter, including 2, thick fibre core flange of 1, lens sleeve of a coupled lens group, 4, thick fibre core position-limiting tube 5 of 3, thin fibre core flange and a thin fibre core position-limiting tube 6；It is internal that described coupled lens group 1 is encapsulated in lens sleeve 2 by cementation method；The centre bore of described thick fibre core flange 3 and thin fibre core flange 4 is the centre bore with interior step, the centre bore docking of the interior step of described thick fibre core flange 3 and thin fibre core flange 4, described lens sleeve 2 cunning is joined fixing, fastened by screw or cementation method encapsulation, described thick fibre core position-limiting tube 5 is fixed on the central hole of described thick fibre core flange 3, and described thin fibre core position-limiting tube 6 is fixed on the central hole of described thin fibre core flange 4.
Described coupled lens group 1 is a piece of or several optical lenses, it is possible to realize the optical coupling between thick fibre core and thin fibre core.Described thick fibre core flange 3 and thin fibre core flange 4 are two panels modular flange, and flange end head dummy number is FC, ST or SMA.Described thick fibre core position-limiting tube 5, thin fibre core position-limiting tube 6 respectively sidewall have c-type cylinder high density ceramic pipe or the metal tube of groove.
Claims (4)
1. lens are from coupled mode fiber adapter, it is characterized in that, including a coupled lens group (1), a lens sleeve (2), a thick fibre core flange (3), a thin fibre core flange (4), a thick fibre core position-limiting tube (5) and a thin fibre core position-limiting tube (6)；It is internal that described coupled lens group (1) is encapsulated in lens sleeve (2) by cementation method；The centre bore of described thick fibre core flange (3) and thin fibre core flange (4) is the centre bore with interior step, the centre bore docking of the interior step of described thick fibre core flange (3) and thin fibre core flange (4), described lens sleeve (2) cunning is joined fixing, fastened by screw or cementation method encapsulation, described thick fibre core position-limiting tube (5) is fixed on the central hole of described thick fibre core flange (3), and described thin fibre core position-limiting tube (6) is fixed on the central hole of described thin fibre core flange (4).
Lens the most according to claim 1 are from coupled mode fiber adapter, it is characterised in that described coupled lens group (1) is a piece of or several optical lenses, it is possible to realize the optical coupling between thick fibre core and thin fibre core.
Lens the most according to claim 1 are from coupled mode fiber adapter, it is characterised in that described thick fibre core flange (3) and thin fibre core flange (4) are two panels modular flange, and flange end head dummy number is FC, ST or SMA.
Lens the most according to claim 1 are from coupled mode fiber adapter, it is characterised in that described thick fibre core position-limiting tube (5), thin fibre core position-limiting tube (6) are respectively sidewall and have c-type cylinder high density ceramic pipe or the metal tube of groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410107217.2A CN103901545B (en) | 2014-03-21 | 2014-03-21 | A kind of lens are from coupled mode fiber adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410107217.2A CN103901545B (en) | 2014-03-21 | 2014-03-21 | A kind of lens are from coupled mode fiber adapter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103901545A CN103901545A (en) | 2014-07-02 |
| CN103901545B true CN103901545B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410107217.2A Active CN103901545B (en) | 2014-03-21 | 2014-03-21 | A kind of lens are from coupled mode fiber adapter |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249359A (en) * | 2016-08-31 | 2016-12-21 | 苏州天孚光通信股份有限公司 | Optical fiber interface component |
| CN106226874A (en) * | 2016-08-31 | 2016-12-14 | 苏州天孚光通信股份有限公司 | Optical fiber interface module |
| CN106443905A (en) * | 2016-08-31 | 2017-02-22 | 苏州天孚光通信股份有限公司 | Light transmission assembly |
| CN106443895A (en) * | 2016-08-31 | 2017-02-22 | 苏州天孚光通信股份有限公司 | Optical fiber component |
| CN106443897A (en) * | 2016-08-31 | 2017-02-22 | 苏州天孚光通信股份有限公司 | Optical fiber connector assembly |
| CN106226870A (en) * | 2016-08-31 | 2016-12-14 | 苏州天孚光通信股份有限公司 | The joints of optical fibre |
| CN106940462A (en) * | 2017-04-07 | 2017-07-11 | 沈阳兴华航空电器有限责任公司 | A kind of extending type fiber optic adapter |
| CN108107510A (en) * | 2017-12-28 | 2018-06-01 | 桂林市兴达光电医疗器械有限公司 | A kind of fiber coupling device |
| CN110673274A (en) * | 2019-10-25 | 2020-01-10 | 浙江光塔节能科技有限公司 | Optical fiber adapter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6355506A (en) * | 1986-08-26 | 1988-03-10 | Nec Corp | Optical fiber coupler |
| CN1158550C (en) * | 2002-04-26 | 2004-07-21 | 天津大学 | Multi-channel optical fibre two-way transmission turning connector |
| CN100585439C (en) * | 2008-08-28 | 2010-01-27 | 中航光电科技股份有限公司 | Optical fibre collimation component and switching type single-core optical fiber rotating connector |
| CN201331599Y (en) * | 2008-12-29 | 2009-10-21 | 飞康技术(深圳)有限公司 | Optical fiber connecting device |
| CN101852900B (en) * | 2010-06-29 | 2011-12-21 | 上海大学 | Collimation-type optical fiber connector |
| CN103135176A (en) * | 2011-12-01 | 2013-06-05 | 西安金和光学科技有限公司 | Fibre-optic link sealing device and manufacturing method thereof |
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2014
- 2014-03-21 CN CN201410107217.2A patent/CN103901545B/en active Active
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| CN103901545A (en) | 2014-07-02 |
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