CN105700084A - Adapter for polarization-maintaining connector - Google Patents
Adapter for polarization-maintaining connector Download PDFInfo
- Publication number
- CN105700084A CN105700084A CN201610119712.4A CN201610119712A CN105700084A CN 105700084 A CN105700084 A CN 105700084A CN 201610119712 A CN201610119712 A CN 201610119712A CN 105700084 A CN105700084 A CN 105700084A
- Authority
- CN
- China
- Prior art keywords
- adapter
- guide channel
- shell
- inner sleeve
- protecting
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 229910052573 porcelain Inorganic materials 0.000 claims description 23
- 239000000835 fiber Substances 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000011796 hollow space material Substances 0.000 claims description 2
- 230000010287 polarization Effects 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000013307 optical fiber Substances 0.000 description 11
- 230000003287 optical effect Effects 0.000 description 7
- 230000008033 biological extinction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission 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
- G02B6/36—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
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- 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
- G02B6/3812—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres having polarisation-maintaining light guides
-
- 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
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3838—Means for centering or aligning the light guide within the ferrule using grooves for light guides
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses an adapter for polarization-maintaining connector, which includes an axial direction through ceramic bushing, an inner bushing and a housing. The ceramic bushing is inserted in an inner hole in the middle of the housing. The inner bushing is inserted in the periphery of the ceramic bushing and is pressed in the housing. One end of the housing is provided with a first guide channel, and the other end of the housing is provided with a second guide channel and a third guide channel. Center axes of the first guide channel and the second guide channel are arranged in the same straight line. Center axes of the second guide channel and the third guide channel are mutually perpendicular. Through arrangement of the axial direction through ceramic bushing, the inner bushing and the housing, the polarization-maintaining connector is connected through the first guide channel, and a positioning key is directly connected to the fast, slow-axis collimated polarization-maintaining connector to be produced by using the second guide channel and the third guide groove of the housing. Collimated consistency of a polarization axis of the polarization-maintaining connector is better than +/- 0.1 degree. The production cost is reduced, and the yield of the polarization-maintaining connector is raised.
Description
Technical field
The present invention relates to a kind of polarization maintaining optical fibre adapter, particularly relate to a kind of for protecting the adapter that inclined adapter makes。
Background technology
Polarization maintaining optical fibre is used for transmission line polarized light, it is ensured that input light and the polarization state coordination exporting light, it is achieved the stability of monotype optical signal transmission, the joints of optical fibre are for realizing continuing of optical fiber。When polarization maintaining optical fibre adapter and fiber adapter possess good precision, just can make two polarization maintaining optical fibres in connection procedure, it is ensured that the alignment precision of the polarization axle of optical fiber meets the needs of making。In optical communication system, the type protecting inclined adapter is distinguished according to the aligned relationship of its polarization axle with adapter positioning key central shaft, common are slow axis alignment and fast axle is directed at two kinds。When making slow axis and two kinds of fast axle and protecting inclined adapter, the corresponding inclined adapter of guarantor need to be adopted reference of reference as polarization axle, so can cause that the polarization axle alignment protecting inclined adapter is inconsistent。Theoretical and experimentation shows: polarization axle alignment concordance is the most important factor that the deterioration of inclined interface unit extinction ratio performance is protected in impact。At present, protect the main manufacture method of inclined adapter to have freely adjustable guide way positioning key, the freely regulated locking body of contact pin etc. can be driven, the loose mail that these methods are both needed to protecting inclined adapter is customized, improve cost of manufacture, need after adjustment freely adjustable loose mail junction gluing is fixed, reduce make efficiency, and it is unstable to cause protecting inclined connector performance, is greatly reduced yield rate。
Summary of the invention
The technical problem to be solved is to provide a kind of for protecting the adapter that inclined adapter makes, ensure that the polarization axle alignment precision protecting inclined adapter, rotating, with the use of special fixture, the optical fiber protecting inclined adapter makes extinction ratio solidify after being in maximum, ensure the polarization axle alignment precision of inclined adapter, make the transmission performance of optical fiber during docking reach optimum。
The present invention solves that above-mentioned technical problem employed technical scheme comprise that a kind of adapter for protecting inclined adapter of offer, including axially through porcelain bushing, inner sleeve and shell, described porcelain bushing is inserted in the endoporus in the middle part of shell, described inner sleeve is set in the periphery of porcelain bushing and is pressed in shell, one end of described shell is provided with for connecting the first guide channel protecting inclined adapter, the other end of described shell is provided with the second guide channel for being directed at slow axis and for being directed at the 3rd guide channel of fast axle, the central shaft of described first guide channel and the second guide channel is positioned at same straight line, the central shaft of described second guide channel and the 3rd guide channel is mutually perpendicular to。
The above-mentioned adapter for protecting inclined adapter, wherein, the inclined adapter of described guarantor is connected by the first guide channel, and the inclined adapter of described guarantor adopts fluting ceramic insertion core and fiber end face to be positioned at fluting place, and described fluting ceramic insertion core is provided with is easy to the end chamfer that bare fibre penetrates。
The above-mentioned adapter for protecting inclined adapter, wherein, described shell is provided with a through notch, the notch of described shell, the fluting of porcelain bushing, the notch of fluting lock pin of protecting inclined adapter regulate when mounted to same axis, and are added with, at joint, the matching fluid that refractive index is close with fiber core refractive index。
The above-mentioned adapter for protecting inclined adapter, wherein, described inner sleeve and shell are rotary structure, the hollow space of described inner sleeve and shell is pipe, described porcelain bushing is inserted in shell pipe, one end of described shell pipe is provided with shell internal ring, and the internal diameter of described shell internal ring is less than the internal diameter of shell pipe, and together with offseting with one end of porcelain bushing；One end of described inner sleeve is the connection ring for being connected with shell, and the other end of described inner sleeve is provided with inner sleeve internal ring, and the internal diameter of described inner sleeve internal ring is less than the internal diameter of inner sleeve pipe, and offsets with the other end of porcelain bushing。
The above-mentioned adapter for protecting inclined adapter, wherein, the squareness tolerance grade of the central shaft of described second guide channel and the 3rd guide channel is 0.4 μm。
The above-mentioned adapter for protecting inclined adapter, wherein, the groove width of described first guide channel, the second guide channel and the 3rd guide channel is 2.03cm～2.08cm。
The above-mentioned adapter for protecting inclined adapter, wherein, described shell two ends be provided with screw thread, the described bottom of thread reserves an escape。
The above-mentioned adapter for protecting inclined adapter, wherein, the diameter of described shell two ends screw thread is 8mm, and pitch is 0.75mm。
The present invention contrasts prior art following beneficial effect: provided by the invention for protecting the adapter that inclined adapter makes, by arrange axially through porcelain bushing, inner sleeve and shell, utilize the first guide channel to connect and protect inclined adapter, utilize the second guide channel and the 3rd guide channel of shell, realize positioning key respectively with soon, the inclined adapter of guarantor of slow axis alignment is direct-connected, rotating, with the use of special fixture, the optical fiber protecting inclined adapter makes extinction ratio solidify after being in maximum, can ensure that the concordance of the polarization axle alignment of two polarization maintaining optical fibres is better than ± 0.1 °, reduce cost of manufacture, also improve the make efficiency protecting inclined adapter and yield rate simultaneously。
Accompanying drawing explanation
Fig. 1 a～1c is that the present invention is for protecting the adapter structure schematic diagram that inclined adapter makes；
Fig. 2 a is that the present invention is for protecting the cross-sectional view of the adapter that inclined adapter makes；
The structural representation after protecting inclined adapter pulled out by the adapter that Fig. 2 b is the present invention；
Fig. 3 a, 3b are the adapter making bow-tie type polarization maintaining optical fibre schematic cross-section with the central axial alignment of adapter positioning key of the present invention；
Fig. 4 a is that the adapter of the present invention is for making the method schematic diagram protecting inclined adapter；
Fig. 4 b is that the adapter of the present invention is for making the generalized section protecting inclined adapter。
In figure:
1 first guide channel 2 second guide channel 3 the 3rd guide channel
4 intermediate optical datum level 5 notch 21 porcelain bushings
22 shell 23 inner sleeves 24 protect inclined adapter
25 fluting lock pin 26 fiber end face 27 end chamfer
28 shell internal ring 29 inner sleeve internal ring 33 positioning keys
The 34 fast axles of slow axis 35
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described。
Fig. 1 a～1c is that the present invention is for protecting the adapter structure schematic diagram that inclined adapter makes；Fig. 2 a is that the present invention is for protecting the cross-sectional view of the adapter of inclined adapter；The structural representation after protecting inclined adapter pulled out by the adapter that Fig. 2 b is the present invention。
Refer to Fig. 1 and Fig. 2, wherein Fig. 1 a is perspective view, Fig. 1 b is an end face structure schematic diagram of adapter, Fig. 1 c is the front view of adapter, adapter for protecting inclined adapter provided by the invention, including axially through porcelain bushing 21, inner sleeve 23, shell 22, described porcelain bushing 21 is inserted in the endoporus in the middle part of shell 22, described inner sleeve 23 be set in porcelain bushing 21 periphery press-in shell 22 in；One end of described shell 22 is provided with for connecting the first guide channel 1 protecting inclined adapter 24, the other end of shell 22 is provided with the second guide channel 2 for being directed at slow axis, for being directed at the 3rd guide channel 3 of fast axle, the wherein central shaft conllinear of the first guide channel 1 and the second guide channel 2, and when being projected on adapter intermediate optical datum level 4, the central shaft of described second guide channel 2 and the 3rd guide channel 3 is mutually perpendicular to, described shell 22 is provided with a through notch 5, the inclined adapter 24 of described guarantor is connected by the first guide channel 1, the inclined adapter 24 of described guarantor adopts fluting lock pin 25 and fiber end face 26 to be positioned at fluting place, described fluting ceramic insertion core 25 is provided with end chamfer 27 to be easy to protect the bare fibre of inclined adapter and penetrates。
Adapter for protecting inclined adapter provided by the invention, when being projected on adapter intermediate optical datum level 4, the angle of the central shaft of the second guide channel 2 and the 3rd guide channel 3 is 90 °, it is possible to change according to the angle value of the inclined adapter positioning key central shaft of guarantor of required making with polarization axle。Described shell 22 can adopt monolithic construction, it is also possible to is divided into two style structure。The guide channel at described shell 22 two ends is the narrow slot meeting YD-T1272.4-2007 standard, and the minima of groove width size K is 2.03cm, and maximum is 2.08cm。
Adapter for protecting inclined adapter provided by the invention, the squareness tolerance grade of second guide channel 2 of described shell 22 one end and the central shaft of the 3rd guide channel 3 is 0.4 μm。Its nominal diameter of screw thread at described shell 22 two ends is 8mm, and pitch is 0.75mm, and it requires to reserve an escape from the bottom of thread, it is adaptable to meet the FC type fiber active linker of YD-T1272.4-2007 standard。
Adapter for protecting inclined adapter provided by the invention, the main body of shell 22 is rotary structure, the middle part of shell is pipe, porcelain bushing 21 is inserted in shell pipe, one end of shell pipe is provided with shell internal ring 28, the internal diameter of this shell internal ring is less than the internal diameter of shell pipe, for propping up one end of porcelain bushing。Similarly, the main body of inner sleeve 23 is rotary structure, the middle part of inner sleeve is pipe, one end of inner sleeve is for connecting ring, for being connected with shell 22, the other end of inner sleeve is provided with inner sleeve internal ring 29, and the internal diameter of this inner sleeve internal ring 29 is less than the internal diameter of inner sleeve pipe, for propping up the other end of porcelain bushing 21。
Adapter for protecting inclined adapter provided by the invention, for the inclined adapter of guarantor that direct-connected two types is to be produced, the aligned relationship of its polarization axle and adapter positioning key central shaft is respectively as best shown in figures 3 a and 3b, the slow axis 34 protecting inclined adapter in Fig. 3 a is coaxial with positioning key 33, and the fast axle 35 protecting inclined adapter in Fig. 3 b is coaxial with positioning key 33。The inclined adapter of guarantor to be directed at slow axis is made as example, in Fig. 3 a, bare fibre is penetrated in adapter, connected by the second guide channel 2, the bare fibre of protrusion end face penetrates in fluting lock pin 25 through end chamfer 27 and docks with the fiber end face 26 protecting inclined adapter 24, by the notch 5 of shell 22, the fluting of porcelain bushing 21, the notch of the fluting lock pin 25 protecting inclined adapter 24 regulates to same axis, the matching fluid that refractive index is close with fiber core refractive index is added at fiber alignment place syringe, reduce the power attenuation of joint, it is easy to extinction ratio monitoring, rotating, with the use of special fixture, the optical fiber protecting inclined adapter makes extinction ratio solidify after being in maximum, as shown in fig. 4 a, the close-up schematic view of section is as shown in Figure 4 b。The inclined adapter of guarantor to realize being directed at fast axle makes, and in Fig. 3 b, connects instead by the 3rd guide channel 3, and subsequent operation is identical。The invention can ensure that the concordance of the polarization axle protecting inclined adapter alignment is better than ± 0.1 °, reduce cost of manufacture, also improve the yield rate protecting inclined adapter and make efficiency simultaneously。Adapter for protecting inclined adapter provided by the invention, is also applied for single polarization fiber, and illustrating no longer one by one at this repeats。
Although the present invention discloses as above with preferred embodiment; so it is not limited to the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little amendment and perfect, therefore protection scope of the present invention is when with being as the criterion that claims define。
Claims (8)
1. the adapter being used for protecting inclined adapter, it is characterized in that, including axially through porcelain bushing (21), inner sleeve (23) and shell (22), described porcelain bushing (21) is inserted in the endoporus at shell (22) middle part, described inner sleeve (23) is set in the periphery of porcelain bushing (21) and is pressed in shell (22), one end of described shell (22) is provided with for connecting the first guide channel (1) protecting inclined adapter (24), the other end of described shell (22) is provided with the second guide channel (2) for being directed at slow axis and for being directed at the 3rd guide channel (3) of fast axle, the central shaft of described first guide channel (1) and the second guide channel (2) is positioned at same straight line, the central shaft of described second guide channel (2) and the 3rd guide channel (3) is mutually perpendicular to。
2. the adapter for protecting inclined adapter as claimed in claim 1, it is characterized in that, the inclined adapter of described guarantor (24) adopts fluting lock pin (25) and fiber end face (26) to be positioned at fluting place, and described fluting ceramic insertion core (25) is provided with the end chamfer (27) be easy to bare fibre and penetrate。
3. the adapter for protecting inclined adapter as claimed in claim 2, it is characterized in that, described shell (22) is provided with a through notch (5), the notch (5) of described shell (22), porcelain bushing (21) fluting, protect the notch of the fluting lock pin (25) of inclined adapter (24) and regulate when mounted to same axis, and be added with, at joint, the matching fluid that refractive index is close with fiber core refractive index。
4. the adapter for protecting inclined adapter as claimed in claim 1, it is characterized in that, described inner sleeve (23) and shell (22) are rotary structure, the hollow space of described inner sleeve (23) and shell (22) is pipe, described porcelain bushing (21) is inserted in shell pipe, one end of described shell pipe is provided with shell internal ring (28), the internal diameter of described shell internal ring (28) is less than the internal diameter of outer shroud pipe, and offsets with one end of porcelain bushing (21)；One end of described inner sleeve (23) is the connection ring for being connected with shell (22), the other end of described inner sleeve (23) is provided with inner sleeve internal ring (29), the internal diameter of described inner sleeve internal ring (29) is less than the internal diameter of inner sleeve pipe, and offsets with the other end of porcelain bushing (21)。
5. the adapter for protecting inclined adapter as claimed in claim 4, it is characterised in that the squareness tolerance grade of the central shaft of described second guide channel (2) and the 3rd guide channel (3) is 0.4 μm。
6. the adapter for protecting inclined adapter as claimed in claim 5, it is characterised in that the groove width of described first guide channel (1), the second guide channel (2) and the 3rd guide channel (3) is 2.03cm～2.08cm。
7. the adapter for protecting inclined adapter as claimed in claim 6, it is characterised in that described shell (22) two ends be provided with screw thread, the described bottom of thread reserves an escape。
8. the adapter for protecting inclined adapter as claimed in claim 7, it is characterised in that the diameter of described shell (22) two ends screw thread is 8mm, and pitch is 0.75mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610119712.4A CN105700084B (en) | 2016-03-03 | 2016-03-03 | A kind of adapter for polarization-maintaining connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610119712.4A CN105700084B (en) | 2016-03-03 | 2016-03-03 | A kind of adapter for polarization-maintaining connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105700084A true CN105700084A (en) | 2016-06-22 |
| CN105700084B CN105700084B (en) | 2017-05-31 |
Family
ID=56223813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610119712.4A Expired - Fee Related CN105700084B (en) | 2016-03-03 | 2016-03-03 | A kind of adapter for polarization-maintaining connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105700084B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110673274A (en) * | 2019-10-25 | 2020-01-10 | 浙江光塔节能科技有限公司 | Optical fiber adapter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000155237A (en) * | 1998-11-20 | 2000-06-06 | Fujikura Ltd | Optical fiber connector |
| JP2004117581A (en) * | 2002-09-24 | 2004-04-15 | Optohub:Kk | Structure and method for connecting polarization plane maintaining optical fiber |
| CN103412376A (en) * | 2013-08-21 | 2013-11-27 | 河北四方通信设备有限公司 | Optical fiber adapter and application thereof |
-
2016
- 2016-03-03 CN CN201610119712.4A patent/CN105700084B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000155237A (en) * | 1998-11-20 | 2000-06-06 | Fujikura Ltd | Optical fiber connector |
| JP2004117581A (en) * | 2002-09-24 | 2004-04-15 | Optohub:Kk | Structure and method for connecting polarization plane maintaining optical fiber |
| CN103412376A (en) * | 2013-08-21 | 2013-11-27 | 河北四方通信设备有限公司 | Optical fiber adapter and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|
| CN105700084B (en) | 2017-05-31 |
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Granted publication date: 20170531 |