CN204694884U - A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre - Google Patents
A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre Download PDFInfo
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- CN204694884U CN204694884U CN201520327896.4U CN201520327896U CN204694884U CN 204694884 U CN204694884 U CN 204694884U CN 201520327896 U CN201520327896 U CN 201520327896U CN 204694884 U CN204694884 U CN 204694884U
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- polarization maintaining
- optical fibre
- maintaining optical
- set nut
- clamp ring
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Abstract
The utility model provides a kind of bare fiber adaptor being applicable to polarization maintaining optical fibre.This adapter comprises adapter main body, set nut and clamp ring, and one end of described adapter main body is provided with ceramic insertion core, the other end of described adapter main body and described set nut threaded engagement; Described clamp ring is arranged on the inside of described set nut, and between described set nut and described adapter main body, described clamp ring and described set nut are provided with axial through hole.A kind of bare fiber adaptor compact conformation being applicable to polarization maintaining optical fibre of the present utility model, can keep the polarization state of polarization maintaining optical fibre to stablize, reduce light junction loss.
Description
Technical field
The utility model relates to optical sensing field, particularly relates to a kind of bare fiber adaptor being applicable to polarization maintaining optical fibre.
Background technology
Fiber adapter carries out between optical fiber with optical fiber being dismountablely flexibly connected device, is mainly used in fibre circuit and between optical sender exports or photoreceiver inputs, or the connection between fibre circuit and other optical passive components.The light signal that a launching fiber exports can be coupled to greatest extent one by it to receive in optical fiber or in optical signal receiver, and make get involved optical link due to it and reduce to minimum to the impact that system causes, this is the basic demand of fiber adapter.
Fiber adapter can be divided into by fiber end face shape: FC, PC (comprising SPC or UPC) and APC tri-kinds of forms.Although the type of fiber adapter is different, the fiber orientation form of its inside is all made up of corresponding ceramic contact pin and a tube coupling.As shown in Figure 2, fiber adapter is mainly made up of optical fiber 21, fixing glue 22, ceramic insertion core 23 and tube coupling 24.Optical fiber 21 in this kind of structure is fixed in ceramic insertion core 23.
Polarization maintaining optical fibre can improve stability and the message capacity of optical transmission system in optical fiber communication and sensory field of optic fibre.The maximum difference of polarization maintaining optical fibre and ordinary optic fibre is the stressed zone including two high boron-dopings in the covering of polarization maintaining optical fibre, and therefore, polarization maintaining optical fibre is also referred to as high birefringence optical fiber.According to the difference of doping stressor layers geometric configuration, polarization maintaining optical fibre mainly contains panda type, bow-tie type and oval stress type three kinds.As shown in Figure 3, (a) is panda type, and (b) is bow-tie type, and (c) is ellipse.Just because of this high birefringence characteristic that polarization maintaining optical fibre self has, make the phase constant difference of polarization mode on pairwise orthogonal direction of principal axis very large, not easily produce coupling.When polarization maintaining optical fibre produces less bending radius, a part for polarization mode can be coupled to mode orthogonal with it and get on, and exports polarisation of light state and obvious change will occur thereupon, thus affect stability and the precision of Optical Fiber Transmission.
In Fiber connection process, need the coat of polarization maintaining optical fibre to peel off, namely the polarization maintaining optical fibre peelling off coat is called protects inclined bare fibre.
The inclined bare fiber adaptor of current existing guarantor is all adopt the mode of side direction pressurization to be fixed in the mode of fixing optical fiber.Chinese utility model patent CN202472046U discloses the inclined bare fiber adaptor of a kind of guarantor, which employs side direction pressuring method and fixes the inclined bare fibre of guarantor.As shown in Figure 4, protect inclined bare fiber adaptor and comprise fiber adapter main body 45, optical fiber clamping assembly 41, fast resilience foam sponge 42, fiber adapter connector 43 and clamping stage clip 44.In using, press down optical fiber clamping assembly 41, clamping stage clip 44 tightens up, the clamping hole of the inclined bare fibre of guarantor along the paper direction of arrow from fast resilience foam sponge 42 is passed, continues across fiber adapter connector 43 from left to right slightly, then unclamp optical fiber clamping assembly 41, clamping stage clip 44 is replied, the other end of optical fiber clamping assembly 41 is pressed down, and the clamping hole of fast resilience foam sponge 42 closes, and tightly inclined bare fibre is protected in clamping.Due to this high birefringence characteristic that polarization maintaining optical fibre self has, this side pressure structure very easily causes less the bending in polarization maintaining optical fibre local, and then causes output polarisation of light state unstable, and junction loss is increased.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of bare fiber adaptor being applicable to polarization maintaining optical fibre, can make polarization maintaining optical fibre uniform stressed diametrically, keeps the polarization state of polarization maintaining optical fibre to stablize, reduces junction loss.
A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre that the utility model provides, comprise adapter main body, set nut and clamp ring, one end of described adapter main body is provided with ceramic insertion core, the other end of described adapter main body and described set nut threaded engagement; Described clamp ring is arranged on the inside of described set nut, and between described set nut and described adapter main body, described clamp ring and described set nut are provided with axial through hole.
According to an embodiment of the present utility model, described adapter main body is FC type fiber adapter or PC type fiber adapter.
According to an embodiment of the present utility model, described clamp ring is made up of elastic deformation material.
According to an embodiment of the present utility model, described clamp ring is made up of rubber.
According to an embodiment of the present utility model, described clamp ring is multiple.
According to an embodiment of the present utility model, described set nut and described clamp ring are formed in one part.
A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre that the utility model provides, its compact conformation, can make polarization maintaining optical fibre at radial uniform stressed, keeps the polarization state of polarization maintaining optical fibre to stablize, reduces junction loss.
Accompanying drawing explanation
Comprising accompanying drawing is further understand the utility model for providing, and they are included and form a application's part, and accompanying drawing shows embodiment of the present utility model, and plays the effect explaining the utility model principle together with this instructions.In accompanying drawing:
Fig. 1 shows the structural representation of an embodiment of the present utility model.
Fig. 2 shows the schematic diagram of the location structure of conventional fiber adapter.
Fig. 3 shows the schematic diagram of the polarization maintaining optical fibre of different structure.
Fig. 4 shows the structural representation of the polarization maintaining optical fibre adapter of prior art.
Embodiment
With detailed reference to accompanying drawing, embodiment of the present utility model is described now.In the case of any possible, in all of the figs the identical mark of use is represented same or analogous part.In addition, although the term used in the utility model selects from public term, but some terms mentioned in the utility model instructions may be that applicant selects by his or her judgement, its detailed meanings illustrates in the relevant portion of description herein.In addition, require not only to pass through used actual terms, but the meaning that also will be contained by each term understands the utility model.
Fig. 1 shows the structural representation of an embodiment of the present utility model.As shown in the figure, the bare fiber adaptor 100 being applicable to polarization maintaining optical fibre comprises adapter main body 1, set nut 2 and clamp ring 3.The right-hand member of adapter main body 1 is provided with ceramic insertion core 4, the left end of adapter main body 1 and set nut 2 threaded engagement.Clamp ring 3 is arranged on the inside of set nut 2, and between set nut 2 and adapter main body 1.Clamp ring 3 and set nut 2 are provided with axial through hole, and this through hole and the inclined bare-fiber diameter of guarantor coordinate.
In actual use, clamp ring 3 inserted in set nut 2, set nut 2 screws in the left end of adapter main body 1.Now, clamp ring 3 is in the relaxed state of non-pressurized.Inclined bare fibre (not shown) will be protected along the accompanying drawing paper direction of arrow, insert the through hole of set nut 2 and clamp ring 3 from left to right, through ceramic insertion core 4 slightly.Screw set nut 2, clamp ring 3 produces deformation under the axial compression of set nut 2 and adapter main body 1, axle pressure is radially extended, along with the enhancing of axle pressure, the deflection of clamp ring 3 radial direction is larger, the through hole of progressively tightening lock collar 3, thus clamps the inclined bare fibre of guarantor.Set nut 2 revolves tighter, and the radial holding force of clamp ring 3 is larger.Protect the uniform force of inclined bare fibre from radial direction, but not be partial to side.
Wherein, adapter main body can be FC type fiber adapter or PC type fiber adapter.
Clamp ring 3 is made up of elastic deformation material.Preferably adopt rubber as making material, because rubber is elastomeric macromolecular compound, there is good insulativity and airtight, waterproof.
Clamp ring 3 in the present embodiment can be 1, also can be multiple.Multiple clamp ring 3 axial array.
Set nut 2 and clamp ring 3 can be formed in one part, easy to use.
A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre that the utility model describes, screws cooperation by the screw thread of set nut and adapter main body, makes the clamp ring be arranged in set nut produce deformation, and then radially evenly clamps the inclined bare fibre of guarantor.Total is compact, the polarization state of polarization maintaining optical fibre can be kept to stablize, reduce light junction loss.
Those skilled in the art can be obvious, can carry out various modifications and variations to above-mentioned exemplary embodiment of the present utility model and not depart from spirit and scope of the present utility model.Therefore, be intended to make the utility model to cover to drop within the scope of appended claims and equivalent arrangements thereof to amendment of the present utility model and modification.
Claims (6)
1. be applicable to a bare fiber adaptor for polarization maintaining optical fibre, it is characterized in that, comprise adapter main body, set nut and clamp ring, one end of described adapter main body is provided with ceramic insertion core, the other end of described adapter main body and described set nut threaded engagement;
Described clamp ring is arranged on the inside of described set nut, and between described set nut and described adapter main body, described clamp ring and described set nut are provided with axial through hole.
2. a kind of bare fiber adaptor being applicable to polarization maintaining optical fibre as claimed in claim 1, it is characterized in that, described adapter main body is FC type fiber adapter or PC type fiber adapter.
3. a kind of bare fiber adaptor being applicable to polarization maintaining optical fibre as claimed in claim 1, it is characterized in that, described clamp ring is made up of elastic deformation material.
4. a kind of bare fiber adaptor being applicable to polarization maintaining optical fibre as claimed in claim 3, it is characterized in that, described clamp ring is made up of rubber.
5. a kind of bare fiber adaptor being applicable to polarization maintaining optical fibre as claimed in claim 1, it is characterized in that, described clamp ring is multiple.
6. a kind of bare fiber adaptor being applicable to polarization maintaining optical fibre as claimed in claim 1, is characterized in that, described set nut and described clamp ring are formed in one part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520327896.4U CN204694884U (en) | 2015-05-20 | 2015-05-20 | A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520327896.4U CN204694884U (en) | 2015-05-20 | 2015-05-20 | A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204694884U true CN204694884U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520327896.4U Active CN204694884U (en) | 2015-05-20 | 2015-05-20 | A kind of bare fiber adaptor being applicable to polarization maintaining optical fibre |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301705A (en) * | 2015-11-19 | 2016-02-03 | 德州振飞光纤技术有限公司 | Manufacture technology and processing equipment of polarization-maintaining LC/UPC connector |
| RU214395U1 (en) * | 2022-08-08 | 2022-10-25 | Павел Владимирович Базакуца | Bare fiber adapter |
-
2015
- 2015-05-20 CN CN201520327896.4U patent/CN204694884U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301705A (en) * | 2015-11-19 | 2016-02-03 | 德州振飞光纤技术有限公司 | Manufacture technology and processing equipment of polarization-maintaining LC/UPC connector |
| RU214395U1 (en) * | 2022-08-08 | 2022-10-25 | Павел Владимирович Базакуца | Bare fiber adapter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |