CN208654360U - A kind of optical fiber pigtail - Google Patents
A kind of optical fiber pigtail Download PDFInfo
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- CN208654360U CN208654360U CN201821128122.9U CN201821128122U CN208654360U CN 208654360 U CN208654360 U CN 208654360U CN 201821128122 U CN201821128122 U CN 201821128122U CN 208654360 U CN208654360 U CN 208654360U
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- optical fiber
- fused quartz
- fibre section
- end cap
- glass tube
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Abstract
The utility model discloses a kind of optical fiber pigtails of technical field of optical fiber；Optical fiber pigtail includes fused quartz end cap, optical fiber, fused quartz glass pipe and capillary glass tube；Optical fiber includes bare fibre section and energy-transmission optic fibre section；The fused quartz end cap, optical fiber, fused quartz glass pipe, capillary glass tube are coaxially fixed；One end of the fused quartz end cap is connect with one end of bare fibre section, one end of the energy-transmission optic fibre section is connect after passing through capillary glass tube with one end of bare fibre section, the fused quartz glass pipe sleeve is respectively fitted over the outside of fused quartz end cap and capillary glass tube at the outside of optical fiber, the both ends of the fused quartz glass pipe.By the above-mentioned means, the optical fiber pigtail of the utility model can support continuous 1000W, peak power 1MW/CM2Laser coupled, can be widely applied to the semiconductor laser for needing fiber coupling input/output, the incidence end or exit end of the solid state laser of specific wavelength, and material is simple, cost is lower.
Description
Technical field
The utility model relates to technical field of optical fiber, in particular to a kind of optical fiber pigtail.
Background technique
The light spot laser device of the conventional space output of comparison, the laser of high-power optical-fiber coupling output due to laser along
Optical fiber flexible transfer, it is convenient to by internal laser conduction to workpiece surface, and the hot spot of conventional straight space output
Laser needs to expand by multichannel, collimates, reflection, shrink beam, and the optical elements such as focusing can just be ultimately conducted to workpiece surface,
It is very high to each element positioning requirements in transmission optical path simultaneously, it has not been convenient to installation and debugging；
For conventional energy transmission optical fibre tail optical fiber, input/output laser beam directly enters optical fiber from air, and high energy swashs
Light is applied directly to bare fibre end face；Simultaneously in order to fix optical fiber, and fiber optic temperature is excessively high when avoiding work, generally will with glue
Optical fiber is nested in ceramic insertion core, fine copper or sapphire glass casing；
During realizing the utility model, utility model people discovery is above, and at least there are the following problems in the related technology:
The core diameter 0.05-0.5mm of conventional fiber is differed, and since laser is directly from air effect to silica fibre end face, optical fiber surface swashs
Optical power density is very high, reaches MW./CM2, at this time if when optical fiber surface has any flaw or long-term work in air
Minute dust particle fall on optical fiber surface, point can all form hot localised points, cause silica fibre surface to be very easy to burn,
Excessively high power cannot be supported so as to cause tail optical fiber.
Utility model content
In view of the above drawbacks of the prior art, the purpose of the utility model is to provide the use that a kind of fiber end face is not easy to burn
In the optical fiber pigtail of high-power optical-fiber coupling input/output.
The purpose of this utility model is achieved by the following technical solution:
The utility model provides a kind of optical fiber pigtail, comprising: fused quartz end cap and optical fiber；The fused quartz end cap with it is described
One end welding of optical fiber, wherein the area of the longitudinal section of the fused quartz end cap is greater than the area of the optical fiber longitudinal section.
Optionally, the optical fiber includes bare fibre section and energy-transmission optic fibre section, one end of the bare fibre section and the biography energy
One end of fiber segment connects, the other end of the bare fibre section and the fused quartz end cap welding.
Optionally, further includes: fused quartz glass pipe；The fused quartz glass pipe sleeve is in the outside of the bare fibre section.
Optionally, further includes: capillary glass tube；One end of the energy-transmission optic fibre section pass through the capillary glass tube after with
One end of the bare fibre section connects.
Optionally, the both ends of the fused quartz glass pipe are respectively sleeved at the fused quartz end cap and the capillary glass tube
Outside, and the fused quartz end cap and the capillary glass tube are welded and fixed with the fused quartz glass seal of tube.
Optionally, the capillary glass tube and the fused quartz glass pipe are tubular, and the fused quartz end cap is cylinder
Shape.
Optionally, the fused quartz end cap, the bare fibre section, the fused quartz glass pipe, the capillary glass tube and
The energy-transmission optic fibre section coaxial arrangement.
Optionally, pass through glue between the energy-transmission optic fibre section and one end and the capillary glass tube of bare fibre connection
Hydropexis.
Optionally, the bare fibre section includes protective layer and fibre core；The protective layer includes inner cladding and surrounding layer, described
Inner cladding wraps up the fibre core, and the surrounding layer wraps up the inner cladding, and several grooves are arranged in the surrounding layer.
Optionally, the fused quartz end cap is provided with anti-reflection film far from a surface of the optical fiber.
Compared with prior art, the utility model has the beneficial effects that being in contrast to the prior art, the utility model
Embodiment provides a kind of simple and practical, high reliability, can support very high power coupling input/output high energy optical fiber energy
Jumper wire construction；By way of being greater than the fused quartz end cap of diameter of optical fiber in fiber end face welding, laser is avoided directly to focus
In the problem that fiber end face causes fiber end face energy density excessively high；By way of connecting a fused quartz end cap, light is avoided
Fine end face directly it is exposed be easy to cause in air other physical injuries formed hot localised points the problem of；Due to glass and glass
The anti-power of contact surface is lower, connection one using quartz glass by way of the fused quartz end cap of material, avoid laser from sky
Gas is directly entered fiber end face and fiber end face is caused to be easy the problem of burning；In the above manner, present embodiments providing one kind
The laser tail optical fiber structure of high-power optical-fiber coupling can support continuous 1000W, and the laser coupled of peak power 1MW/CM can
Be widely used in needing the semiconductor laser of fiber coupling input/output, the incidence end of the solid state laser of specific wavelength or
Person's exit end, and material is simple, cost is lower.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model optical fiber pigtail embodiment；
Fig. 2 is the cross-sectional view schematic diagram of the utility model optical fiber pigtail embodiment；
Fig. 3 is the cross-sectional view schematic diagram of optical fiber in the utility model optical fiber pigtail embodiment.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These are all within the protection scope of the present invention.
Referring to Figure 1 and Fig. 2, optical fiber pigtail 1 include fused quartz end cap 10, optical fiber 20, fused quartz glass pipe 30 and glass
Capillary 40.
The fused quartz end cap 10, the optical fiber 20, the fused quartz glass pipe 30, the capillary glass tube 40 are coaxially solid
Fixed setting.Optical fiber 20 includes bare fibre section 201 and energy-transmission optic fibre section 202, one end and the bare fibre of the fused quartz end cap
One end connection of section 201, one end of the energy-transmission optic fibre section 202 pass through after the capillary glass tube 40 with the bare fibre section
201 one end connection.30 sets of the fused quartz glass pipe outsides in the bare fibre section 201, the fused quartz glass pipe 30
Both ends be respectively fitted over the outside of fused quartz end cap 10 and capillary glass tube 40, the bare fibre section 201 is provided with a corrosion hair
Change region 2011, several grooves (not indicating) is arranged in the corrosion texturing region 2011.
Above-mentioned fused quartz end cap 10, one end are fiber end face 101, and the other end is the bare fibre section 201 with optical fiber 20
One end connection the first connecting pin 12, the area of the longitudinal section of fused quartz end cap 10 is greater than 201 longitudinal section of bare fibre section
Area.The region of the side surface preset area of the described one end of fused quartz end cap 10 far from fiber end face 101 is set in molten stone
Inside one end of English glass tube 30, join domain is second connection end 13.In some embodiments, the fused quartz end cap is one
Cylindric glass body, the fiber end face 101 is provided with anti-reflection film, for enhancing optical coupling efficiency；First connecting pin
12 connect one end of fused quartz end cap 10 and bare fibre section 201 in a manner of welding, the second connection end 13 by laser or
Arc discharge ring packing welding.In some other embodiment, the shape of the fused quartz end cap can be according to incident laser angle
The needs of degree and set, the area of the area of the longitudinal section of the fused quartz end cap 10 and 201 longitudinal section of bare fibre section
Ratio can be set as needed, not need the restriction for sticking to the present embodiment.
Above-mentioned optical fiber 20, the optical fiber 20 include bare fibre section 201 and energy-transmission optic fibre section 202, the bare fibre section 201
One end is connect with fused quartz end cap 10, and connecting pin is the first connecting pin 12, the other end of the bare fibre section 201 and the biography energy
One end of fiber segment 202 connects, and junction is third connecting pin 210.One end of the energy-transmission optic fibre section 202 passes through the glass
It is connect after capillary 40 with one end of the bare fibre section 201, the energy-transmission optic fibre section 202 is set in the capillary glass tube
40 the inside, join domain are the 4th connecting pin 24, and the optical fiber 20 is set in the inside of fused quartz glass pipe 30.
Fig. 2 and Fig. 3 are referred to, in some embodiments, one end of the bare fibre section 201 and the fused quartz end cap 10
Welding；The bare fibre section 201 is to obtain after the optical fiber 20 strips the protective layer 2012 of preset length, the energy-transmission optic fibre section
202 do not strip the region of protective layer 2012 for the optical fiber 20；The bare fibre section 201 includes protective layer 2012 and fibre core
2013, the protective layer 2012 includes that inner cladding 2012a and surrounding layer 2012b, the inner cladding 2012a wrap the fibre core
2013, the surrounding layer 2012b wraps the inner cladding 2012a.Corrosion texturing region is provided in the bare fibre section 201
2011, the corrosion texturing region 2011 is provided with several grooves, and several grooves that the corrosion texturing region 2011 is arranged are
After the bare fibre section 201 strips surrounding layer 2012b, after doing corrosion frosting treatment using hydrofluoric acid solution, formed on covering
Rough microcosmic pitting, laser enters optical fiber behind the corrosion texturing region 2011, and invalid light cladding light is filtered
It removes, has achieved the effect that conduction is cooling.The one end and the glass fiber of the energy-transmission optic fibre section 202 close to third connecting pin 210
Tubule 40 is bonded using the UV glue of low viscosity.In some other embodiment, the length of the bare fibre section 201, institute
State corrosion texturing region 2011 length, chemical reagent needed for corrosion frosting treatment is done in the corrosion texturing region 2011,
The glue type that 4th connecting pin 24 is bonded, the above specific setting can all need to set as needed, not need to adhere rigidly to
In the restriction of the present embodiment.
One end of above-mentioned fused quartz glass pipe 30, the fused quartz glass pipe 30 is set in the outside of fused quartz end cap 10,
Join domain is second connection end 13, and the other end of the fused quartz glass pipe 30 is set in the outside of capillary glass tube 40, even
Connecing region is the 5th connecting pin 34, and the fused quartz glass pipe 30 is set in the outside of optical fiber 20.In the present embodiment, second connects
It connects end 13 and the 5th connecting pin 34 to be all fixed by laser or arc discharge ring packing welding, guarantees that internal optical fiber 20 is anti-
Dirt waterproof, it is ensured that it is long-acting reliable, compared to tradition by metal and glue sealing bonding (combination of molecular level), realize original
The combination in sublayer face, sealing effect greatly promote.The fused quartz glass pipe 30 is tubular, protects internal optical fiber 20；It is described
30 transparent high temperature resistant of fused quartz glass pipe has low-expansion coefficient, very high to the transmitance of laser, above-mentioned invalid cladding light warp
Superfusion quartz glass tube is refracted in air, it can the useless stray light (invalid cladding light) of glass is further transmitted to sky
In gas.In some other embodiment, the first connecting pin 12 and the 5th connecting pin 34 can pass through other companies for glass capsulation
The mode of connecing is fixed, and does not need the restriction for sticking to the present embodiment.
Above-mentioned capillary glass tube 40, the capillary glass tube 40 are set in the bare fibre section 201 and energy-transmission optic fibre of optical fiber 20
The join domain of the outside of 202 junctions 210 of section, the capillary glass tube 40 and the energy-transmission optic fibre 202 is the 4th connecting pin
24, the capillary glass tube 40 is set in the inside of the one end of fused quartz glass pipe 30 far from fused quartz end cap 10, join domain
For the 5th connecting pin 34.In the present embodiment, the 4th connecting pin 24 is fixed by UV glue, and the 5th connecting pin 34 is close by annular
Envelope is welded and fixed, and enhances the anti-pull ability of optical fiber, and the fusion point (the first connecting pin 12) when installing and using is avoided to disconnect easily,
The capillary glass tube 40 is tubular.
Result design through this embodiment, the optical fiber pigtail 1 of the utility model can be used for the coupling of high power laser light
The tail optical fiber of input/output encapsulates, and is also applied for optical patchcord structure.
Compared with prior art, the utility model has the beneficial effects that being in contrast to the prior art, the utility model
Embodiment provides a kind of simple and practical, high reliability, can support very high power coupling input/output high energy optical fiber energy
Jumper wire construction；By way of being greater than the fused quartz end cap of diameter of optical fiber in fiber end face welding, laser is avoided directly to focus
In the problem that fiber end face causes fiber end face energy density excessively high；By way of connecting a fused quartz end cap, light is avoided
Fine end face directly it is exposed be easy to cause in air other physical injuries formed hot localised points the problem of；Due to glass and glass
The anti-power of contact surface is lower, connection one using quartz glass by way of the fused quartz end cap of material, avoid laser from sky
Gas is directly entered fiber end face and fiber end face is caused to be easy the problem of burning；In the above manner, present embodiments providing one kind
The laser tail optical fiber structure of high-power optical-fiber coupling can support continuous 1000W, and the laser coupled of peak power 1MW/CM can
Be widely used in needing the semiconductor laser of fiber coupling input/output, the incidence end of the solid state laser of specific wavelength or
Person's exit end, and material is simple, cost is lower.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Under the thinking of the utility model, it can also be combined between the technical characteristic in above embodiments or different embodiments,
And there are many other variations of the different aspect of the utility model as described above, for simplicity, they are not in details
It provides；Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to wherein regional development and technology feature
It is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and the utility model is respectively implemented
The range of example technical solution.
Claims (9)
1. a kind of optical fiber pigtail characterized by comprising fused quartz end cap and optical fiber；
One end welding of the fused quartz end cap and the optical fiber, wherein the area of the longitudinal section of the fused quartz end cap is greater than
The area of the optical fiber longitudinal section, the optical fiber include bare fibre section and energy-transmission optic fibre section, are provided with corruption in the bare fibre section
Lose texturing region.
2. optical fiber pigtail according to claim 1, which is characterized in that
One end of the bare fibre section is connect with one end of the energy-transmission optic fibre section, and the other end of the bare fibre section is melted with described
Quartzy end cap welding.
3. optical fiber pigtail according to claim 2, which is characterized in that further include: fused quartz glass pipe and capillary glass tube；
The fused quartz glass pipe sleeve is in the outside of the bare fibre section；
One end of the energy-transmission optic fibre section is connect after passing through the capillary glass tube with one end of the bare fibre section.
4. optical fiber pigtail according to claim 3, which is characterized in that
The both ends of the fused quartz glass pipe are respectively sleeved at the outside of the fused quartz end cap and the capillary glass tube, and
The fused quartz end cap and the capillary glass tube are welded and fixed with the fused quartz glass seal of tube.
5. optical fiber pigtail according to claim 4, which is characterized in that
The capillary glass tube and the fused quartz glass pipe are tubular, and the fused quartz end cap is cylinder.
6. optical fiber pigtail according to claim 4, which is characterized in that
The fused quartz end cap, the bare fibre section, the fused quartz glass pipe, the capillary glass tube and the energy-transmission optic fibre
Section coaxial arrangement.
7. optical fiber pigtail according to claim 4, which is characterized in that
It is fixed between the energy-transmission optic fibre section and one end and the capillary glass tube of bare fibre connection by glue.
8. optical fiber pigtail according to claim 2, which is characterized in that the bare fibre section includes protective layer and fibre core；
The protective layer includes inner cladding and surrounding layer, and the inner cladding wraps up the fibre core, and the surrounding layer package is described interior
Several grooves are arranged in covering, the surrounding layer.
9. optical fiber pigtail according to claim 1, which is characterized in that a table of the fused quartz end cap far from the optical fiber
Face is provided with anti-reflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821128122.9U CN208654360U (en) | 2018-07-16 | 2018-07-16 | A kind of optical fiber pigtail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821128122.9U CN208654360U (en) | 2018-07-16 | 2018-07-16 | A kind of optical fiber pigtail |
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| Publication Number | Publication Date |
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| CN208654360U true CN208654360U (en) | 2019-03-26 |
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| CN201821128122.9U Active CN208654360U (en) | 2018-07-16 | 2018-07-16 | A kind of optical fiber pigtail |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761646A (en) * | 2018-07-16 | 2018-11-06 | 深圳市星汉激光科技有限公司 | A kind of optical fiber pigtail |
| CN110031936A (en) * | 2019-04-02 | 2019-07-19 | 武汉光迅科技股份有限公司 | A kind of laser melting formula optical fiber collimator and its tools and method |
| CN110596812A (en) * | 2019-10-18 | 2019-12-20 | 上海飞博激光科技有限公司 | Structure for preventing optical fiber welding spot from overheating and manufacturing method thereof |
-
2018
- 2018-07-16 CN CN201821128122.9U patent/CN208654360U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108761646A (en) * | 2018-07-16 | 2018-11-06 | 深圳市星汉激光科技有限公司 | A kind of optical fiber pigtail |
| CN110031936A (en) * | 2019-04-02 | 2019-07-19 | 武汉光迅科技股份有限公司 | A kind of laser melting formula optical fiber collimator and its tools and method |
| CN110596812A (en) * | 2019-10-18 | 2019-12-20 | 上海飞博激光科技有限公司 | Structure for preventing optical fiber welding spot from overheating and manufacturing method thereof |
| CN110596812B (en) * | 2019-10-18 | 2024-03-12 | 上海飞博激光科技股份有限公司 | Structure for preventing overheating of optical fiber welding spots and manufacturing method thereof |
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Address after: 518000 5th floor, building B4, xujingchang Industrial Park, No. 39, Haoye Road, Xinhe community, Fuhai street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Xinghan Laser Technology Co.,Ltd. Address before: 518000 No.301, A22, second industrial zone, Fuwei community, Fuyong street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN XINGHAN LASER TECHNOLOGY Co.,Ltd. |