CN103901545A - Lens self-coupling type optical fiber adapter - Google Patents
Lens self-coupling type optical fiber adapter Download PDFInfo
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- CN103901545A CN103901545A CN201410107217.2A CN201410107217A CN103901545A CN 103901545 A CN103901545 A CN 103901545A CN 201410107217 A CN201410107217 A CN 201410107217A CN 103901545 A CN103901545 A CN 103901545A
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Abstract
The invention relates to a lens self-coupling type optical fiber adapter which comprises a coupling lens group, a lens sleeve, a thick fiber core flange, a thin fiber core flange, a thick fiber core limiting pipe and a thin fiber core limiting pipe. The coupling lens group is packaged in the lens sleeve in a cementing mode. A center hole of the thick fiber core flange and a center hole of the thin fiber core flange are both center holes with inner steps. The center holes with the inner steps of the thick fiber core flange and the thin fiber core flange are connected in an abutting mode. The lens sleeve is fixed in a sliding-matching mode and is subjected to packaging in a screw-fastening or cementing mode. The thick fiber core limiting pipe is fixed at the center hole of the thick fiber core flange. The thin fiber core limiting pipe is fixed at the center hole of the thin fiber core flange. The lens self-coupling type optical fiber adapter can be used for optical coupling of optical fibers with different core diameters, a light path system formed by a plurality of optical lens is used for beam-expanding or beam-contracting optical coupling, and the lens self-coupling type optical fiber adapter is suitable for inserting connecting of optical fiber patch cords with different core diameters.
Description
Technical field
The present invention addresses a kind of lens from coupled mode fiber adapter, belongs to field of photoelectric technology.
Background technology
Along with the development of modern optical fiber communication and optical fiber sensing technology and further going deep into of application, various optical fibre devices emerge in an endless stream, be no matter data transmission, the Fibre Optical Sensor of optical fiber, the transmission of laser energy, all need to experience between laser instrument and optical fiber, optically-coupled process between optical fiber and optical fiber.
At present, conventional optically-coupled mode has following several:
(1) Space Coupling between laser instrument and optical fiber, laser, in dielectric space transmission such as atmosphere, is injected in optical fiber after optical coupling lens is assembled, and completes the transmission of laser.Which is very high to the stability requirement of whole light path devices, is substantially all to inject by artificial coupling, waste time and energy, and owing to transmitting in space, coupling efficiency is lower, and the insertion loss of light is very large.
(2) being of coupled connections by standard adapter (flange) between optical fiber and optical fiber, this coupling only needs to select the flange with two ends insertion optical patchcord head model coupling to dock the coupling that can realize optical fiber and optical fiber, although convenient, laborsaving and junction loss is lower, but require adapter two ends fiber core necessary consistent, otherwise fiber core mismatch can increase light path coupling loss.
Summary of the invention
The problem that the object of the invention is to solve different core optical fibers light path couplings in optical fiber telecommunications system or optical fiber sensing system, provides a kind of lens from coupled mode fiber adapter.This fiber adapter adopts flange connection to facilitate the docking of optical fiber, the lens combination of fiber adapter inside can adopt multi-disc optical lens complete the coupling between thick core optical fibers and fine core diameter optical fiber and eliminate aberration, the aberration etc. that light path focuses on simultaneously, adds 8 ° of mirrors also can improve the return loss of light path in lens.
For achieving the above object, the present invention adopts following technical proposals:
A kind of lens, from coupled mode fiber adapter, comprise 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 lens sleeve inside by cementation method; The center pit of described thick fibre core flange and thin fibre core flange is the center pit with interior step, the center pit docking of the interior step of described thick fibre core flange and thin fibre core flange, described lens sleeve cunning is joined fixing, by screw fastening 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 slice or several optical lenses, can realize the optically-coupled between thick fibre core and thin fibre core.
Described thick fibre core flange and thin fibre core flange are two piece combined flanges, and flange end head model is FC, ST or SMA.
Described thick fibre core position-limiting tube, thin fibre core position-limiting tube are respectively sidewall and have C type cylinder high density ceramic pipe or the metal tube of groove.
Principle of work 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 to the two ends flange-interface that with it match of lens from coupled mode fiber adapter.When laser during from the unmatched Optical Fiber Transmission of core diameter the coupled lens group of lens in coupled mode fiber adapter just can complete and expand coupling (thin fibre core transmit to thick fibre core) or contracting bundle coupling (thick fibre core transmit to thin fibre core), thereby elimination core diameter does not mate the excessive impact that light is transmitted of the insertion loss causing.Meanwhile, in lens combination, insert 8 ° of lens and also can increase return loss, eliminate the impact of reflected light on transmission in light path.
The present invention compared with prior art, has following apparent outstanding substantive distinguishing features and remarkable advantage:
(1) optical fiber patches, simple to operate;
(2) easy for installation, take up room little;
(3) improved the not coupling work efficiency of matched fiber of core diameter.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of one embodiment of the invention.
Embodiment
A preferred embodiment of the present invention accompanying drawings are as follows:
Referring to Fig. 1, a kind of lens are from coupled mode fiber adapter, comprise a coupled lens group 1, lens sleeve 2, thick fibre core flange 3, thin fibre core flange 4, thick fibre core position-limiting tube 5 and a thin fibre core position-limiting tube 6; Described coupled lens group 1 is encapsulated in lens sleeve 2 inside by cementation method; The center pit of described thick fibre core flange 3 and thin fibre core flange 4 is the center pit with interior step, the center pit docking of the interior step of described thick fibre core flange 3 and thin fibre core flange 4, described lens sleeve 2 cunnings are joined fixing, by screw fastening 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 slice or several optical lenses, can realize the optically-coupled between thick fibre core and thin fibre core.Described thick fibre core flange 3 and thin fibre core flange 4 are two piece combined flanges, and flange end head model is FC, ST or SMA.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.
Claims (4)
1. lens are from coupled mode fiber adapter, it is characterized in that, comprise 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); Described coupled lens group (1) is encapsulated in lens sleeve (2) inside by cementation method; The center pit of described thick fibre core flange (3) and thin fibre core flange (4) is the center pit with interior step, the center pit 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, by screw fastening 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).
2. lens according to claim 1, from coupled mode fiber adapter, is characterized in that, described coupled lens group (1) is a slice or several optical lenses, can realize the optically-coupled between thick fibre core and thin fibre core.
3. lens according to claim 1, from coupled mode fiber adapter, is characterized in that, described thick fibre core flange (3) and thin fibre core flange (4) are two piece combined flanges, and flange end head model is FC, ST or SMA.
4. lens according to claim 1, from coupled mode fiber adapter, is characterized 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 true CN103901545A (en) | 2014-07-02 |
| CN103901545B CN103901545B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN106443895A (en) * | 2016-08-31 | 2017-02-22 | 苏州天孚光通信股份有限公司 | Optical fiber component |
| CN106443905A (en) * | 2016-08-31 | 2017-02-22 | 苏州天孚光通信股份有限公司 | Light transmission assembly |
| 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 |
| 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 |
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| JPS6355506A (en) * | 1986-08-26 | 1988-03-10 | Nec Corp | Optical fiber coupler |
| CN1380562A (en) * | 2002-04-26 | 2002-11-20 | 天津大学 | Multi-channel optical fibre two-way transmission turning connector |
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| CN201331599Y (en) * | 2008-12-29 | 2009-10-21 | 飞康技术(深圳)有限公司 | Optical fiber connecting device |
| CN101852900A (en) * | 2010-06-29 | 2010-10-06 | 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
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6355506A (en) * | 1986-08-26 | 1988-03-10 | Nec Corp | Optical fiber coupler |
| CN1380562A (en) * | 2002-04-26 | 2002-11-20 | 天津大学 | Multi-channel optical fibre two-way transmission turning connector |
| CN101344617A (en) * | 2008-08-28 | 2009-01-14 | 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 |
| CN101852900A (en) * | 2010-06-29 | 2010-10-06 | 上海大学 | Collimation-type optical fiber connector |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN106443895A (en) * | 2016-08-31 | 2017-02-22 | 苏州天孚光通信股份有限公司 | Optical fiber component |
| CN106443905A (en) * | 2016-08-31 | 2017-02-22 | 苏州天孚光通信股份有限公司 | Light transmission assembly |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103901545B (en) | 2016-08-17 |
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