CN109407213A - A kind of laser energy wire jumper and preparation method thereof - Google Patents
A kind of laser energy wire jumper and preparation method thereof Download PDFInfo
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- CN109407213A CN109407213A CN201811318063.6A CN201811318063A CN109407213A CN 109407213 A CN109407213 A CN 109407213A CN 201811318063 A CN201811318063 A CN 201811318063A CN 109407213 A CN109407213 A CN 109407213A
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- 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
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
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- 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
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
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Abstract
The invention discloses a kind of laser energy wire jumper and preparation method thereof, which includes: energy-transmission optic fibre, refraction casing and end cap；Energy-transmission optic fibre is arranged with refraction casing on the outer wall of output end；Refraction casing includes: the first flat region, the first cone area and collapsed region；The diameter of first flat region is greater than the diameter of collapsed region, first cone area is gradually reduced along the outbound course diameter of energy-transmission optic fibre, and first flat region, the first cone area and collapsed region are sequentially communicated, energy-transmission optic fibre sequentially passes through the first flat region, the first cone area and collapsed region welding in end cap.The present invention is by being arranged with refraction casing on outer wall of the energy-transmission optic fibre close to output end, energy-transmission optic fibre is sequentially passed through to the first flat region, the first cone area and collapsed region of refraction casing, and by its welding in end cap, while increasing the output end intensity of energy-transmission optic fibre, the laser wire jumper can efficiently filter out cladding light, while enhancing the heat-sinking capability of the output end of energy-transmission optic fibre.
Description
Technical field
The present invention relates to fiber laser technology field, in particular to a kind of laser energy wire jumper and preparation method thereof.
Background technique
Optical fiber laser has swift and violent development in recent years, due to its higher laser-conversion efficiency, better simply heat
Way to manage, lower maintenance cost make it have a very wide range of applications in industrial circle.If laser is directly from optical fiber
End face output, since laser only transmits in the fibre core of optical fiber, and the fibre core of optical fiber is generally relatively thin, this is allowed in optical fiber
Output end face power density it is high, it is easy to damage from laser will be generated；Simultaneously by the Fei Lier reflex of end face, portion
Divide output laser that can be reflected back laser from output end face, destruction is generated to laser inside.For this two o'clock, as shown in Figure 1,
Common solution is one vitreous silica stick of end face welding in energy-transmission optic fibre, i.e. end cap, at the same quartz pushrod in addition
One end face is coated with counnter attack film can also further inhibit to export in this way while reducing the power density of output end face
The reflection laser that end face generates.
The energy-transmission optic fibre end cap that welding has end cap is a part of energy-transmission optic fibre, is also needed outside energy-transmission optic fibre and end cap
It to be packaged by mechanical structure, and be integrated with water cooling plant, so that constituting a complete superlaser transmits wire jumper.By
Coat nearby has been stripped in energy-transmission optic fibre and end cap fusion point, so that the fusion point is very fragile, had been made in this way in encapsulation
Journey and later period are in use, the fusion point is easily broken.In addition, in laser output par, c, remaining clad pumping optical, by
The return of material generation is processed in the covering laser of the generations such as bending, the welding defect of energy-transmission optic fibre, when laser uses to swash
Light, this several fraction of laser light have collectively constituted the cladding light of energy-transmission optic fibre.In actual use, the plain fiber portion meeting of coating has been stripped
When directly contacting with cooling water, once having impurity in cooling water in this way, just it is easy to be attached to optical fiber when impurity touches optical fiber
Surface causes acutely to generate heat to the high-selenium corn of covering laser and energy-transmission optic fibre is destroyed.
Summary of the invention
(1) technical problems to be solved
The present invention provides a kind of laser energy wire jumper and preparation method thereof, with solve the output end intensity of energy-transmission optic fibre compared with
Low, output end acutely generates heat easily damaged problem.
(2) technical solution
To solve the above problems, the present invention provides a kind of laser energy wire jumper, comprising: energy-transmission optic fibre, refraction casing and end
Cap；The energy-transmission optic fibre is arranged with the refraction casing on the outer wall of output end；Wherein, the refraction casing includes:
One flat region, the first cone area and collapsed region；The diameter of first flat region is greater than the diameter of the collapsed region, first cone
Area is gradually reduced along the outbound course diameter of the energy-transmission optic fibre, and first flat region, the first cone area and described is collapsed
Contracting area is sequentially communicated, and the energy-transmission optic fibre sequentially passes through first flat region, the first cone area and the collapsed region welding
In the end cap.
Further, the output end of the energy-transmission optic fibre is encapsulated in the collapsed region, and the output end of the collapsed region is molten
It connects in the end cap.
Further, the refraction casing further include: the second cone area；Output of the second cone area along the energy-transmission optic fibre
Orient diameter is gradually increased, and the output end of the energy-transmission optic fibre is encapsulated in second cone area, the output end of the collapsed region
It is connected with the miner diameter end in second cone area, the bigger diameter end in second vertebra area and the end cap welding.
Further, the refraction casing further include: the second cone area and the second flat region；Second cone area is along the biography
The outbound course diameter of energy optical fiber is gradually increased, and the output end of the energy-transmission optic fibre is encapsulated in second flat region, described
The output end of collapsed region is connected with the miner diameter end in second cone area, and second flat region is straight pipe, second vertebra area
Bigger diameter end be connected with one end of second flat region, the other end of second flat region and the end cap welding.
Further, the collapsed region is vacuum sleeve, and the vacuum sleeve is tightly attached to the energy-transmission optic fibre close to output
On the outer wall at end.
Further, the outer surface of the refraction casing is matte surface, and the refraction casing is doping fused silica casing.
To solve the above problems, the present invention also provides a kind of production method of laser energy wire jumper, the production method packet
It includes following steps: step S1: choosing one section of refraction casing, and the refraction casing is drawn and is bored, formation includes at least: first is flat
The refraction casing in area, the first cone area and collapsed region；Wherein, it first flat region, the first cone area and described collapses
Area is sequentially communicated, and the diameter of first flat region is greater than the diameter of the collapsed region, and first cone area is along the biography energy light
Fine outbound course diameter is gradually reduced；Step S2: the energy-transmission optic fibre is inserted into from one end of the refraction casing, to described
Refraction casing heated, it is described refraction casing one end access vacuum pump, make the refraction casing gradually taper up with it is described
Energy-transmission optic fibre is integrated；Step S3: the refraction casing and the energy-transmission optic fibre are cut in the collapsed region, make institute
It states energy-transmission optic fibre and sequentially passes through first flat region, the first cone area and the collapsed region welding in the end cap.
Further, the output end of the energy-transmission optic fibre is encapsulated in the collapsed region, and the output end of the collapsed region is molten
It connects in the end cap.
Further, the specific steps of the step S1 include: to choose one section of refraction casing, and the refraction is covered
Pipe draws cone, and formation includes at least: first flat region, first cone area, the collapsed region and second bore the folding in area
Penetrate casing；Wherein, first flat region, first cone area, the collapsed region and second cone area are sequentially communicated, described
The diameter of first flat region is greater than the diameter of the collapsed region, outbound course diameter of the first cone area along the energy-transmission optic fibre
It is gradually reduced；Second cone area is gradually increased along the outbound course diameter of the energy-transmission optic fibre, the output end of the collapsed region
It is connected with the miner diameter end in second cone area；The specific steps of the step S3 include: in second cone area to the refraction
Casing and the energy-transmission optic fibre are cut, make the energy-transmission optic fibre sequentially pass through first flat region, it is described first cone area,
The collapsed region and the second cone area's welding make the output end of the energy-transmission optic fibre be encapsulated in described the in the end cap
In plug tap area, the output end welding in second cone area is in the end cap.
Further, the specific steps of the step S1 include: to choose one section of refraction casing, and the refraction is covered
Pipe draws cone, and formation includes at least: first flat region, first cone area, the collapsed region, second cone area and second
The refraction casing of flat region；Wherein, first flat region, first cone area, the collapsed region, second cone area
It is sequentially communicated with second flat region, the diameter of first flat region is greater than the diameter of the collapsed region, first cone
Area is gradually reduced along the outbound course diameter of the energy-transmission optic fibre；Second cone area is straight along the outbound course of the energy-transmission optic fibre
Diameter is gradually increased, and the output end of the collapsed region is connected with the miner diameter end in second cone area, and second flat region is straight tube
Section, the bigger diameter end in second vertebra area are connected with one end of second flat region；The specific steps of the step S3 include:
The refraction casing and the energy-transmission optic fibre are cut in second flat region, sequentially pass through the energy-transmission optic fibre described
First flat region, first cone area, the collapsed region, the second cone area and second flat region welding are in the end cap
On, and it is encapsulated in the output end of the energy-transmission optic fibre in second flat region, the other end of second flat region and institute
State end cap welding.
(3) beneficial effect
The present invention provides a kind of laser energy wire jumper and preparation method thereof, passes through the outer wall in energy-transmission optic fibre close to output end
On be arranged with refraction casing, energy-transmission optic fibre is sequentially passed through to the first flat region, the first cone area and collapsed region of refraction casing, and will
Its welding is in end cap.The laser energy wire jumper includes: energy-transmission optic fibre, refraction casing and end cap；The energy-transmission optic fibre is close to defeated
Refraction casing is arranged on the outer wall of outlet；Refraction casing includes: the first flat region, the first cone area and collapsed region；First is flat
The diameter in area is greater than the diameter of collapsed region, and the first cone area is gradually reduced along the outbound course diameter of energy-transmission optic fibre, and first is flat
Area, the first cone area and collapsed region are sequentially communicated, and energy-transmission optic fibre sequentially passes through the first flat region, the first cone area and collapsed region welding and exists
In end cap.Laser energy wire jumper provided by the invention is by setting refraction casing, by the diameter at energy-transmission optic fibre and end cap fusing point
Become larger, higher welding power and weld time can be born when the laser wire jumper welding by enabling, and effectively increase biography energy
The output end intensity of optical fiber, and cladding light can efficiently be filtered out.Meanwhile after increasing refraction casing, make laser
The covering and fibre core ratio of energy wire jumper increase, even if the heat of generation is also more difficult to be transmitted to because cladding light is generated heat by Impurity Absorption
Fibre core enhances the heat-sinking capability of the output end of energy-transmission optic fibre.
In addition, the refraction casing that the present invention uses defaults its refractive index greater than non-impurity-doped fused silica refractive index, that is, greatly
In fibre cladding refractive index, to play the guidance to cladding light, release effect；But the refractive index of the refraction casing used can also
With small non-impurity-doped fused silica refractive index, action principle is that cladding light is strictly limited in reverse transfer in the covering of energy-transmission optic fibre,
Cladding light is filtered out using the mode filter that laser carries, to avoid contact of the water cooling water with cladding light completely.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of laser energy wire jumper in the prior art；
Fig. 2 is the structural schematic diagram of the laser energy wire jumper provided in first preferred embodiment of the invention；
Fig. 3 is the structural schematic diagram of the laser energy wire jumper provided in second preferred embodiment of the invention；
Fig. 4 is the structural schematic diagram of the laser energy wire jumper provided in third preferred embodiment of the invention；
Fig. 5 is the production process structural schematic diagram one of the laser energy wire jumper provided in the preferred embodiment of the present invention；
Fig. 6 is the production process structural schematic diagram two of the laser energy wire jumper provided in the preferred embodiment of the present invention；
Fig. 7 is the production process structural schematic diagram three of the laser energy wire jumper provided in the preferred embodiment of the present invention；
Fig. 8 is the production process structural schematic diagram four of the laser energy wire jumper provided in the preferred embodiment of the present invention；
Fig. 9 is the production process structural schematic diagram five of the laser energy wire jumper provided in the preferred embodiment of the present invention；
Figure 10 is the structural schematic diagram of the laser energy wire jumper provided in the preferred embodiment of the present invention；
Wherein, 1: energy-transmission optic fibre；2: refraction casing；3: end cap；11: coat；21: the first flat regions；22: the first cones
Area；23: collapsed region；24: the second cone areas；25: the second flat regions.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of laser energy wire jumper to solve problems of the prior art, as shown in Fig. 2,
The laser energy wire jumper includes: energy-transmission optic fibre 1, refraction casing 2 and end cap 3.Energy-transmission optic fibre 1 is arranged on the outer wall of output end
There is refraction casing 2.Energy-transmission optic fibre 1 is integrated with refraction casing 2, and then forms on energy-transmission optic fibre 1 by 2 structure of refraction casing
At mode stripper.Wherein, refraction casing 2 is the high refraction casing by drawing cone processing, which includes: first flat
Bore area 22 and collapsed region 23 in area 21, first.The diameter of first flat region 21 is greater than the diameter of collapsed region 23, and the first cone area 22 is along biography
The outbound course diameter of energy optical fiber 1 is gradually reduced, and the first flat region 21, first cone area 22 and collapsed region 23 are sequentially communicated, and are passed
Energy optical fiber 1 sequentially passes through the first flat region 21, first cone area 22 and 23 welding of collapsed region in end cap 3.The laser energy wire jumper
While increasing the output end intensity of energy-transmission optic fibre 1, which can efficiently be filtered out to cladding light,
The heat-sinking capability of the output end of energy-transmission optic fibre 1 is enhanced simultaneously.
For the mechanical strength for further enhancing the laser energy wire jumper, in the present embodiment, the output end of collapsed region 23 also melts
It connects in end cap 3, the output end of energy-transmission optic fibre 1 is encapsulated in collapsed region 23, i.e., is combined by energy-transmission optic fibre 1 and refraction casing 2
Integrally formed mode stripper and 3 welding of end cap makes mode stripper directly with 3 welding of end cap, increase energy-transmission optic fibre 1 and end cap 3 is molten
The intensity of junction.
In the present embodiment, small rodlike end cap 3, the blocky end cap 3 of diameter 8mm and other classes of diameter 2mm are can be selected in end cap 3
Type end cap 3.
Wherein, the collapsed region 23 for reflecting casing 2 is vacuum sleeve, which is tightly attached to energy-transmission optic fibre 1 close to output
On the outer wall at end.For example, refraction casing 2 can be socketed on the outer wall of energy-transmission optic fibre 1 by way of pyrocondensation.
To avoid energy-transmission optic fibre 1 from directly contacting with the external world, enhance the anticorrosive oxidation resistance of energy-transmission optic fibre 1, passing can light
The input terminal of fibre 1 is arranged with coat 11.And to guarantee the mechanical strength for reflecting casing 2 in the laser energy wire jumper, the coating
Layer 11 is partially embedded in the first flat region 21 of refraction casing 2.
In the present embodiment, the outer surface of refraction casing 2 is matte surface, i.e., corresponding first flat region 21 on refraction casing 2,
The region of first cone area 22 and collapsed region 23 is matte surface, which is beaten by chemical attack, laser ablation, machinery
One of mill or quartz particles cladding or various ways are formed.
Wherein, refraction casing 2 can be used doping fused silica casing, the element of doping can according to specific Operating condition adjustment, thus
It keeps energy-transmission optic fibre 1 and reflects the consistency of 2 material of casing, while guaranteeing that the fusing point for reflecting casing 2 is slightly below energy-transmission optic fibre 1,
So that when energy-transmission optic fibre 1 and 3 welding of end cap, it is ensured that good welding quality.
It is reflected it should be noted that the refraction casing 2 that the present embodiment uses defaults its refractive index greater than non-impurity-doped fused silica
Rate, that is, it is greater than fibre cladding refractive index, to play the guidance to cladding light, release effect.But in other embodiments
The refraction casing 2 of the small non-impurity-doped fused silica of the refractive index that can also be used, action principle are that cladding light is strictly limited in biography energy light
Reverse transfer in fine covering filters out cladding light using the mode stripper that laser carries, to avoid water cooling water completely
Contact with cladding light, the cladding light of forward direction transmission are then directly exported from end cap 3, and the cladding light of reverse transfer is then by laser
The included mode stripper in portion filters out.
In the present embodiment, refraction casing 2 needs and 3 welding of end cap, therefore the refractive index for reflecting casing 2 cannot be too high, because
Higher for refractive index, doping is higher, and fusing point is lower, when this makes with 3 welding of end cap, if reflecting casing 2 using normal power
It can melt.If when using lower power, refraction casing 2 softens, and energy-transmission optic fibre 1 is but without reaching fusing point.Therefore it needs to roll over
The refractive index for penetrating casing 2 is slightly larger than the cladding index of energy-transmission optic fibre 1.Doping type quartz socket tube can be used in refraction casing 2, thus
It keeps energy-transmission optic fibre 1 and reflects the consistency of 2 material of casing, while guaranteeing that 2 fusing point of refraction casing of high refractive index slightly below passes
Energy optical fiber 1, so that when energy-transmission optic fibre 1 and 3 welding of end cap, it is ensured that good welding quality.
The embodiment of the present invention provides a kind of laser energy wire jumper, by covering on outer wall of the energy-transmission optic fibre 1 close to output end
Equipped with refraction casing 2, energy-transmission optic fibre 1 is sequentially passed through to the first flat region 21, the first cone area 22 and collapsed region of refraction casing 2
23, and by its welding in end cap 3.Laser energy wire jumper provided by the invention is by setting refraction casing 2, by energy-transmission optic fibre 1
Become larger with the diameter at 3 fusing point of end cap, higher welding power and welding can be born when the laser wire jumper welding by enabling
Time effectively increases the output end intensity of energy-transmission optic fibre 1, and can efficiently be filtered out to cladding light.Meanwhile increasing
After reflecting casing 2, the covering of laser wire jumper and fibre core ratio is enable to increase, even if because cladding light is generated heat by Impurity Absorption,
The heat of generation is also more difficult to be transmitted to fibre core, enhances the heat-sinking capability of the output end of energy-transmission optic fibre 1.
On the basis of the above embodiments, the present invention also provides a kind of laser energy wire jumpers, as shown in figure 3, the laser
Energy wire jumper includes: energy-transmission optic fibre 1, refraction casing 2 and end cap 3.Energy-transmission optic fibre 1 is arranged with refraction set on the outer wall of output end
Pipe 2.Energy-transmission optic fibre 1 is integrated with refraction casing 2, and then the stripping mould being made of refraction casing 2 is formd on energy-transmission optic fibre
Device.
For the end cap 3 for being connected with frustum 31 this kind of in such as Fig. 3, the welding end face of end cap 3 is smaller, and energy-transmission optic fibre 1 adds
After dress refraction casing 2, diameter is excessive, even greater than the welding end face of end cap 3, to cause welding difficult.For this kind
End cap 3 can be designed by the drawing cone-shaped of birefringence casing 2, and the refraction casing such as the asymmetry of this type in Fig. 3 is made
2.The refraction casing 2 includes: the first flat region 21, first cone area 22, collapsed region 23 and the second cone area 24.Second cone area 24 is along biography
The outbound course diameter of energy optical fiber 1 is gradually increased, and the diameter of the first flat region 21 is greater than the diameter of collapsed region 23, and first is flat
Area 21, first bores area 22, collapsed region 23 and the second cone area 24 and is sequentially communicated, and energy-transmission optic fibre 1 sequentially passes through the first flat region 21, the
One cone area 22, collapsed region 23 and the second cone 24 welding of area are in end cap 3.The output end of energy-transmission optic fibre 1 is encapsulated in the second cone area 24
Interior, the output end of collapsed region 23 is connected with the miner diameter end in the second cone area 24, the bigger diameter end in the second vertebra area 24 and 3 welding of end cap.
It is different from above-described embodiment, the present embodiment behind the collapsed region 23 in refraction casing 2 by continuing the second cone of setting
Area 24 enables laser energy wire jumper to be applicable in the end cap 3 equipped with frustum 31, while effectively improving the output end of energy-transmission optic fibre 1
Intensity.
On the basis of the above embodiments, the present invention also provides a kind of laser energy wire jumpers, as shown in figure 4, the laser
Energy wire jumper includes: energy-transmission optic fibre 1, refraction casing 2 and end cap 3.Energy-transmission optic fibre 1 is arranged with refraction set on the outer wall of output end
Pipe 2.Energy-transmission optic fibre 1 is integrated with refraction casing 2, and then is integrated with mode stripper on energy-transmission optic fibre 1.Reflecting casing 2 is warp
Drawing cone is crossed treated high refraction casing,
In the present embodiment, can pyrocondensation a part reflect casing 2, retain at energy-transmission optic fibre 1 and 3 fusion point of end cap, the folding
Penetrating casing 2 includes: the first flat region 21, first cone area 22, the cone area 24 of collapsed region 23, second and the second flat region 25.Second is flat
The diameter in smooth area 25 can be adjusted according to the size of end cap 3, second cone area 24 along energy-transmission optic fibre 1 outbound course diameter gradually
Increase, the diameter of the first flat region 21 is greater than the diameter of collapsed region 23, and the first flat region 21, first cone area 22, collapsed region 23,
Second cone area 24 and the second flat region 25 are sequentially communicated, and energy-transmission optic fibre 1 sequentially passes through the first flat region 21, first cone area 22, collapses
Area 24 and 25 welding of the second flat region are bored in end cap 3 in contracting area 23, second.Outbound course of the second cone area 24 along energy-transmission optic fibre 1
Diameter is gradually increased, and the output end of energy-transmission optic fibre 1 is encapsulated in the second flat region 25, the output end of collapsed region 23 and the second cone area
24 miner diameter end is connected, and the second flat region 25 is straight pipe, one end phase of the bigger diameter end in the second vertebra area 24 and the second flat region 25
Even, 25 other ends of the second flat region and 3 welding of end cap.At this point, the refraction casing 2 and energy-transmission optic fibre 1 at fusion point are in and divide
From state, this to filter mould region far from fusion point near, reduce the temperature at fusion point, and then effectively preventing passing can light
Fine 1 output end acutely generates heat easily damaged problem.
To sum up, the embodiment of the present invention provides a kind of laser energy wire jumper, passes through the outer wall in energy-transmission optic fibre 1 close to output end
On be arranged with refraction casing 2, the first flat region 21, first cone that energy-transmission optic fibre 1 sequentially passes through refraction casing 2 and is collapsed at area 22
Area 23, and by its welding in end cap 3.Laser energy wire jumper provided by the invention is by setting refraction casing 2, by energy-transmission optic fibre
1 becomes larger with the diameter at 3 fusing point of end cap, and higher welding power and welding can be born when the laser wire jumper welding by enabling
Time effectively increases the output end intensity of energy-transmission optic fibre 1, and can efficiently be filtered out to cladding light.Meanwhile increasing
After reflecting casing 2, the covering of laser wire jumper and fibre core ratio is enable to increase, even if because cladding light is generated heat by Impurity Absorption,
The heat of generation is also more difficult to be transmitted to fibre core, enhances the heat-sinking capability of the output end of energy-transmission optic fibre 1.In addition, being different from above-mentioned reality
Example is applied, the present embodiment enables laser to jump by behind the second cone area 24 in refraction casing 2 continuing that the second flat region 25 is arranged
The filter mould region of line far from fusion point near, reduce fusion point at temperature, effectively prevent 1 output end of energy-transmission optic fibre and acutely send out
The easily damaged problem of heat.
The embodiment of the present invention also provides a kind of production method of laser energy wire jumper, as shown in Fig. 5 to Figure 10, the production side
Method includes the following steps:
Step S1: one section of refraction casing 2 is chosen, and refraction casing 2 is drawn into cone, formation includes at least: the first flat region 21,
The refraction casing 2 in the first cone area 22 and collapsed region 23；Wherein, the first flat region 21, first cone area 22 and collapsed region 23 successively connect
Logical, the diameter of the first flat region 21 is greater than the diameter of collapsed region 23, the first cone area 22 along energy-transmission optic fibre 1 outbound course diameter by
It is decrescence small.
Wherein, further include sub-step before step S1: removing coat 11 of the energy-transmission optic fibre 1 close to output end, and use
Ultrasonic cleaner and alcohol clean energy-transmission optic fibre 1.
Specifically, as shown in Figure 5 and Figure 6, remove energy-transmission optic fibre 1 after the coat 11 of output end, first choose one section
Casing 2 is reflected, internal aperture is slightly larger than 11 diameter of coat of energy-transmission optic fibre 1, and draw cone method to carry out drawing cone to it using heating,
Drawing cone heat source includes carbon dioxide laser, oxyhydrogen flame, graphite heater furnace.After drawing cone, formation is included at least: the first flat region 21,
The refraction casing 2 in the first cone area 22 and collapsed region 23, wherein the internal diameter of the smallest collapsed region 23 of diameter is slightly larger than removal coat
The diameter of 11 energy-transmission optic fibre 1.
Wherein, it draws cone process that can be adjusted according to subsequent needs, such as can be formed and be sequentially communicated on refraction casing 2
Area 22 is bored in first flat region 21, first, area 24 and the second flat region 25 are bored in collapsed region 23, second.
After drawing cone, also corrosion treatment first can be carried out to energy-transmission optic fibre 1, remove a part of covering of energy-transmission optic fibre 1, from
And cladding light is made to be easier to be leaked in the refraction casing 2 of outer layer.
Step S2: energy-transmission optic fibre 1 is inserted into from one end of refraction casing 2, birefringence casing 2 is heated, and is covered in refraction
Vacuum pump is accessed in one end of pipe 2, gradually tapers up refraction casing 2 and is integrated with energy-transmission optic fibre 1.
Wherein, after drawing cone, first energy-transmission optic fibre 1 is inserted into from one end of refraction casing 2, and guarantee the one of coat 11
It is partially embedded into the first flat region 21 of refraction casing 2.As shown in fig. 7, reusing heating source scanning heating refraction casing 2
Collapsed region 23 accesses vacuum pump in one end of refraction casing 2 while heat scan, vacuum pump birefringence casing 2 is used to carry out
It vacuumizes, so that refraction casing 2 is fitted on optical fiber and combined together.Finally by the outer surface shape of the refraction casing 2 after hot melt
At matte surface.Wherein, matte surface passes through one of chemical attack, laser ablation, mechanical grinding or quartz particles cladding
Or various ways are formed.
Step S3: in collapsed region, 23 birefringence casing 2 and energy-transmission optic fibre 1 are cut, and energy-transmission optic fibre 1 is made to sequentially pass through
Area 22 and 23 welding of collapsed region are bored in end cap 3 in one flat region 21, first.
After step S2, as shown in Figure 8 and Figure 9, in collapsed region, 23 birefringence casing 2 and energy-transmission optic fibre 1 are cut,
Energy-transmission optic fibre 1 is set to sequentially pass through the first flat region 21, first cone area 22 and 23 welding of collapsed region in end cap 3, energy-transmission optic fibre 1
Output end is encapsulated in collapsed region 23, and the output end welding of collapsed region 23 uses low-refraction glue can light to biography in end cap 3
Fibre 1 and the contact point of refraction casing 2 are packaged, so that energy-transmission optic fibre 1 is thoroughly separated with cooling water.It eventually forms such as Fig. 2
Shown in laser energy wire jumper, which includes: energy-transmission optic fibre 1, refraction casing 2 and end cap 3.Energy-transmission optic fibre 1 leans on
Refraction casing 2 is arranged on the outer wall of nearly output end.Refraction casing 2 is the high refraction casing by drawing cone processing, the refraction set
Pipe 2 includes: the first flat region 21, first cone area 22 and collapsed region 23.The diameter of first flat region 21 is greater than the straight of collapsed region 23
Diameter, the first cone area 22 is gradually reduced along the outbound course diameter of energy-transmission optic fibre 1, and the first flat region 21, first bores area 22 and collapses
Contracting area 23 is sequentially communicated, and energy-transmission optic fibre 1 sequentially passes through the first flat region 21, first cone area 22 and 23 welding of collapsed region in end cap 3
On.
Wherein, laser lower for power works as its output power and is no more than 1 kilowatt hour, can be to the above structure
Step is simplified, and process is bored in the drawing for omitting refraction casing 2, and as shown in Figure 10, whole refraction casing 2 is directly heat fused to biography can light
Fibre 1 on, then carry out cutting and with 3 welding of end cap, be simplified the laser energy wire jumper of type.
For the end cap 3 for being connected with frustum 31 this kind of in such as Fig. 3, the welding end face of end cap 3 is smaller, and energy-transmission optic fibre 1 adds
After dress refraction casing 2, diameter is excessive, even greater than the welding end face of end cap 3, to easily cause welding difficult.For this kind
End cap 3, the present invention also provides a kind of production method of laser energy wire jumper, this method passes through the drawing taper of birefringence casing 2
Shape design, and the refraction casing 2 such as the asymmetry of this type in Fig. 3 is made in corresponding set-up procedure S1 to S3.
Detailed process is as follows:
In the above-mentioned steps S1 the step of, one section of refraction casing 2 is chosen, and refraction casing 2 is drawn into cone, formation is at least wrapped
It includes: boring the refraction casing 2 in area 22, collapsed region 23 and the second cone area 24 in the first flat region 21, first；Wherein, the first flat region 21,
First cone area 22, collapsed region 23 and the second cone area 24 are sequentially communicated, and the diameter of the first flat region 21 is greater than the diameter of collapsed region 23,
First cone area 22 is gradually reduced along the outbound course diameter of energy-transmission optic fibre 1, and the second cone area 24 is straight along the outbound course of energy-transmission optic fibre 1
Diameter is gradually increased, and the output end of collapsed region 23 is connected with the miner diameter end in the second cone area 24.
In the above-mentioned steps S2 the step of, energy-transmission optic fibre 1 is inserted into from one end of refraction casing 2, birefringence casing 2 carries out
Heating accesses vacuum pump in one end of refraction casing 2, gradually tapers up refraction casing 2 and be integrated with energy-transmission optic fibre 1.
In the above-mentioned steps S3 the step of, is cut in the second cone 24 birefringence casing 2 of area and energy-transmission optic fibre 1, make to pass
Energy optical fiber 1 sequentially passes through the first flat region 21, first cone area 22, collapsed region 23 and the second cone 24 welding of area in end cap 3, and makes
The output end of energy-transmission optic fibre 1 is encapsulated in the second cone area 24, and the output end welding in the second cone area 24 is in end cap 3.
Laser energy wire jumper as shown in Figure 3 is finally produced, which includes: energy-transmission optic fibre 1, refraction casing
2 and end cap 3；Refraction casing 2 includes: the first flat region 21, first cone area 22, collapsed region 23 and the second cone area 24.Second cone area
24 are gradually increased along the outbound course diameter of energy-transmission optic fibre 1, and the diameter of the first flat region 21 is greater than the diameter of collapsed region 23, and the
One flat region 21, first cone area 22, collapsed region 23 and the second cone area 24 are sequentially communicated, and it is flat that energy-transmission optic fibre 1 sequentially passes through first
Area 22, collapsed region 23 and the second cone 24 welding of area are bored in end cap 3 in area 21, first.The output end of energy-transmission optic fibre 1 is encapsulated in second
It bores in area 24, the output end of collapsed region 23 is connected with the miner diameter end in the second cone area 24, and the bigger diameter end and end cap 3 in the second vertebra area 24 are molten
It connects.
Molding pressure and temperature, pressure are filtered at fusion point in order to further decrease, while playing energy-transmission optic fibre 1 and cooling water
Separation, produces laser energy wire jumper as shown in Figure 4.First energy-transmission optic fibre 1 and refraction casing 2 can be cut, then will pass energy
Optical fiber 1 penetrates refraction casing 2 and guarantees that end face is concordant, then carries out part drawing to high refractive index casing and bores.It is also possible to will show
Energy-transmission optic fibre 1 is inserted into refraction casing 2, part is carried out and draws cone, finally make smooth end face by the way of grinding.It is logical
The separation of optical fiber and refraction casing 2 at energy-transmission optic fibre 1 and 3 fusion point of end cap can be guaranteed by crossing this mode.So that filter mould region
Far near fusion point, the temperature at fusion point is reduced, and then effectively prevents 1 output end of energy-transmission optic fibre and acutely generate heat to be easy to damage
Bad problem.
It is understood that the structure can also be made by adjusting step S1 to S3, detailed process is as follows:
In the above-mentioned steps S1 the step of, one section of refraction casing 2 is chosen, and refraction casing 2 is drawn into cone, formation is at least wrapped
Include: area 22 is bored in the first flat region 21, first, the refraction casing 2 in area 24 and the second flat region 25 is bored in collapsed region 23, second；Wherein,
First flat region 21, first cone area 22, collapsed region 23, second bores area 24 and the second flat region 25 is sequentially communicated, the first flat region
21 diameter is greater than the diameter of collapsed region 23, and the first cone area 22 is gradually reduced along the outbound course diameter of energy-transmission optic fibre 1；Second cone
Area 24 is gradually increased along the outbound course diameter of energy-transmission optic fibre 1, the miner diameter end phase of the output end of collapsed region 23 and the second cone area 24
Even, the second flat region 25 is straight pipe, and the bigger diameter end in the second vertebra area 24 is connected with one end of the second flat region 25.
In the above-mentioned steps S2 the step of, energy-transmission optic fibre 1 is inserted into from one end of refraction casing 2, birefringence casing 2 carries out
Heating accesses vacuum pump in one end of refraction casing 2, gradually tapers up refraction casing 2 and be integrated with energy-transmission optic fibre 1.
In the above-mentioned steps S3 the step of, in the second flat region, 25 birefringence casing 2 and energy-transmission optic fibre 1 are cut, and are made
Energy-transmission optic fibre 1 sequentially passes through the first flat region 21, first cone area 22, area 24 is bored in collapsed region 23, second and the second flat region 25 is molten
It connects in end cap 3, and is encapsulated in the output end of energy-transmission optic fibre 1 in second flat region 25, make the other end of the second flat region 25
With 3 welding of end cap.
Laser energy wire jumper as shown in Figure 4 is finally produced, which includes: energy-transmission optic fibre 1, refraction casing
2 and end cap 3；The refraction casing 2 include: the first flat region 21, first cone area 22, collapsed region 23, second bore area 24 and second it is flat
Smooth area 25.The diameter of second flat region 25 can be adjusted according to the size of end cap 3, and the second cone area 24 is along the defeated of energy-transmission optic fibre 1
Orient diameter is gradually increased out, and the diameter of the first flat region 21 is greater than the diameter of collapsed region 23, and the first flat region 21, first is bored
Area 22, collapsed region 23, second are bored area 24 and the second flat region 25 and are sequentially communicated, energy-transmission optic fibre 1 sequentially pass through the first flat region 21,
Area 24 and 25 welding of the second flat region are bored in end cap 3 in first cone area 22, collapsed region 23, second.Second cone area 24 can light along biography
Fibre 1 outbound course diameter be gradually increased, the output end of energy-transmission optic fibre 1 is encapsulated in the second flat region 25, collapsed region 23 it is defeated
Outlet is connected with the miner diameter end in the second cone area 24, and the second flat region 25 is straight pipe, the bigger diameter end in the second vertebra area 24 and second flat
The one end in smooth area 25 is connected, 25 other ends of the second flat region and 3 welding of end cap.
The embodiment of the present invention provides a kind of production method of laser energy wire jumper, close in energy-transmission optic fibre 1 by this method
It is arranged with refraction casing 2 on the outer wall of output end, energy-transmission optic fibre 1 is sequentially passed through to the first flat region 21, first of refraction casing 2
Area 22 and collapsed region 23 are bored, and by its welding in end cap 3.Laser energy wire jumper provided by the invention passes through setting refraction casing
2, energy-transmission optic fibre 1 and the diameter at 3 fusing point of end cap are become larger, higher melt can be born by enabling when the laser wire jumper welding
Power and weld time are connect, effectively increases the output end intensity of energy-transmission optic fibre 1, and high-efficient filter can be carried out to cladding light
It removes.Meanwhile after increasing refraction casing 2, the covering of laser wire jumper and fibre core ratio is enable to increase, even if because cladding light quilt
The heat of Impurity Absorption fever, generation is also more difficult to be transmitted to fibre core, enhances the heat-sinking capability of the output end of energy-transmission optic fibre 1.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of laser energy wire jumper characterized by comprising
Energy-transmission optic fibre, refraction casing and end cap；
The energy-transmission optic fibre is arranged with the refraction casing on the outer wall of output end；Wherein, the refraction casing includes:
One flat region, the first cone area and collapsed region；The diameter of first flat region is greater than the diameter of the collapsed region, first cone
Area is gradually reduced along the outbound course diameter of the energy-transmission optic fibre, and first flat region, the first cone area and described is collapsed
Contracting area is sequentially communicated, and the energy-transmission optic fibre sequentially passes through first flat region, the first cone area and the collapsed region welding
In the end cap.
2. laser energy wire jumper according to claim 1, which is characterized in that the output end of the energy-transmission optic fibre is encapsulated in institute
It states in collapsed region, the output end welding of the collapsed region is in the end cap.
3. laser energy wire jumper according to claim 1, which is characterized in that the refraction casing further include:
Second cone area；Second cone area is gradually increased along the outbound course diameter of the energy-transmission optic fibre, the energy-transmission optic fibre
Output end is encapsulated in second cone area, and the output end of the collapsed region is connected with the miner diameter end in second cone area, described
The bigger diameter end in the second vertebra area and the end cap welding.
4. laser energy wire jumper according to claim 1, which is characterized in that the refraction casing further include:
Second cone area and the second flat region；Second cone area is gradually increased along the outbound course diameter of the energy-transmission optic fibre, institute
The output end for stating energy-transmission optic fibre is encapsulated in second flat region, and the output end of the collapsed region is small with second cone area
Diameter end is connected, and second flat region is straight pipe, one end phase of the bigger diameter end in second vertebra area and second flat region
Even, the other end of second flat region and the end cap welding.
5. laser energy wire jumper according to claim 1, which is characterized in that the collapsed region is vacuum sleeve, described true
Empty set pipe is tightly attached to the energy-transmission optic fibre on the outer wall of output end.
6. laser energy wire jumper according to claim 1, which is characterized in that the outer surface of the refraction casing is frosted table
Face, the refraction casing are doping fused silica casing.
7. a kind of production method of laser energy wire jumper, which is characterized in that the production method includes the following steps:
Step S1: one section of refraction casing is chosen, and the refraction casing is drawn and is bored, formation includes at least: the first flat region, first
Bore the refraction casing in area and collapsed region；Wherein, first flat region, the first cone area and the collapsed region successively connect
Logical, the diameter of first flat region is greater than the diameter of the collapsed region, output of the first cone area along the energy-transmission optic fibre
Orient diameter is gradually reduced；
Step S2: the energy-transmission optic fibre is inserted into from one end of the refraction casing, the refraction casing is heated, in institute
One end access vacuum pump for stating refraction casing, gradually tapers up the refraction casing and is integrated with the energy-transmission optic fibre；
Step S3: cutting the refraction casing and the energy-transmission optic fibre in the collapsed region, make the energy-transmission optic fibre according to
It is secondary to pass through first flat region, the first cone area and the collapsed region welding in the end cap.
8. production method according to claim 7, which is characterized in that the output end of the energy-transmission optic fibre is encapsulated in described collapse
In contracting area, the output end welding of the collapsed region is in the end cap.
9. production method according to claim 7, which is characterized in that the specific steps of the step S1 include:
One section of refraction casing is chosen, and the refraction casing is drawn and is bored, formation includes at least: first flat region, institute
State the refraction casing in the first cone area, the collapsed region and the second cone area；
Wherein, first flat region, first cone area, the collapsed region and second cone area are sequentially communicated, and described the
The diameter of one flat region be greater than the collapsed region diameter, it is described first cone area along the energy-transmission optic fibre outbound course diameter by
It is decrescence small；It is described second cone area is gradually increased along the outbound course diameter of the energy-transmission optic fibre, the output end of the collapsed region with
The miner diameter end in second cone area is connected；
The specific steps of the step S3 include:
The refraction casing and the energy-transmission optic fibre are cut in second cone area, sequentially pass through the energy-transmission optic fibre
First flat region, first cone area, the collapsed region and the second cone area's welding make described in the end cap
The output end of energy-transmission optic fibre is encapsulated in second cone area, and the output end welding in second cone area is in the end cap.
10. production method according to claim 7, which is characterized in that the specific steps of the step S1 include:
One section of refraction casing is chosen, and the refraction casing is drawn and is bored, formation includes at least: first flat region, institute
State the refraction casing in the first cone area, the collapsed region, second cone area and the second flat region；
Wherein, first flat region, first cone area, the collapsed region, the second cone area and second flat region
It is sequentially communicated, the diameter of first flat region is greater than the diameter of the collapsed region, and first cone area is along the energy-transmission optic fibre
Outbound course diameter be gradually reduced；Second cone area is gradually increased along the outbound course diameter of the energy-transmission optic fibre, described
The output end of collapsed region is connected with the miner diameter end in second cone area, and second flat region is straight pipe, second vertebra area
Bigger diameter end be connected with one end of second flat region；
The specific steps of the step S3 include:
The refraction casing and the energy-transmission optic fibre are cut in second flat region, wear the energy-transmission optic fibre successively
First flat region, first cone area, the collapsed region, the second cone area and second flat region welding are crossed in institute
State in end cap, and be encapsulated in the output end of the energy-transmission optic fibre in second flat region, second flat region it is another
End and the end cap welding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811318063.6A CN109407213B (en) | 2018-11-07 | 2018-11-07 | Laser energy transfer jumper wire and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318063.6A CN109407213B (en) | 2018-11-07 | 2018-11-07 | Laser energy transfer jumper wire and manufacturing method thereof |
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| CN109407213A true CN109407213A (en) | 2019-03-01 |
| CN109407213B CN109407213B (en) | 2023-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325947A (en) * | 2021-12-30 | 2022-04-12 | 光惠（上海）激光科技有限公司 | Mode optimization output device based on tapered optical fiber |
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| CN106253038A (en) * | 2016-08-31 | 2016-12-21 | 中国人民解放军国防科学技术大学 | A kind of middle-infrared band optical fiber pumping/signal bundling device |
| CN209265005U (en) * | 2018-11-07 | 2019-08-16 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser energy wire jumper |
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| GB1493660A (en) * | 1975-12-16 | 1977-11-30 | Standard Telephones Cables Ltd | Optical waveguide power dividers |
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| CN114325947B (en) * | 2021-12-30 | 2024-01-05 | 光惠（上海）激光科技有限公司 | Mode optimization output device based on tapered optical fiber |
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| CN109407213B (en) | 2023-10-13 |
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