CN109239847A - Optical-fiber bundling device and preparation method thereof - Google Patents
Optical-fiber bundling device and preparation method thereof Download PDFInfo
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- CN109239847A CN109239847A CN201811150440.XA CN201811150440A CN109239847A CN 109239847 A CN109239847 A CN 109239847A CN 201811150440 A CN201811150440 A CN 201811150440A CN 109239847 A CN109239847 A CN 109239847A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 132
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 122
- 238000003466 welding Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000007781 pre-processing Methods 0.000 claims description 8
- 238000000608 laser ablation Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 4
- 238000012681 fiber drawing Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910002804 graphite Inorganic materials 0.000 description 7
- 239000010439 graphite Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000004093 laser heating Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2551—Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
-
- 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
- G02B6/2552—Splicing of light guides, e.g. by fusion or bonding reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
-
- 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
- G02B6/26—Optical coupling means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The embodiment of the present invention provides a kind of optical-fiber bundling device and preparation method thereof.The optical-fiber bundling device includes output optical fibre and the curing optical fiber beam by being thermally formed in more input light fiber insertion tapered, porous casings；One end face of the curing optical fiber beam and an end face welding of the output optical fibre.The preparation method of optical-fiber bundling device includes: that more input light fibers are inserted into the input terminal of tapered, porous casing respectively, forms fiber optic bundle；The both ends of the surface of the fiber optic bundle are arranged smooth；The fiber optic bundle is heated, curing optical fiber beam is formed；By an end face welding of an end face of the curing optical fiber beam and the output optical fibre, optical-fiber bundling device is formed.Optical-fiber bundling device provided in an embodiment of the present invention and preparation method thereof, curing optical fiber beam in more input light fiber insertion tapered, porous casings by being thermally formed, fiber optic bundle needs not move through drawing cone operation, so that the fibre core of input light fiber does not change and damages, the beam quality of optical-fiber bundling device ensure that.
Description
Technical field
The present embodiments relate to technical field of optical fiber more particularly to a kind of optical-fiber bundling device and preparation method thereof.
Background technique
Optical fiber laser is a kind of structure through gathering, and stability is high, and the good new laser of thermal diffusivity has been widely used in
The fields such as industry, medical treatment, national defence.It is higher and higher to optical fiber laser demanded power output with the development of technique for applying.Due to
The influence of pumping tube power density, optical fiber damage threshold etc., single mode fiber laser output power have the upper limit.Pass through
Optical-fiber bundling device is to realize that laser output power promotes most one of direct, most efficient method.
Optical-fiber bundling device is the optical fibre device prepared on the basis of fused biconical taper fiber optic bundle.It is to peel off a branch of optical fiber
Then coat is arranged together in a certain way, heating is allowed to melt in high temperature, while stretching optical fiber round about
Beam, optical fiber heating region are melted into melting cone fiber beam.After cone waist cutting, cone area's output end is melted with an output optical fibre
It connects.
Currently, the manufacture craft of optical-fiber bundling device, which is broadly divided into rotation, draws cone method and two kinds of tiretube process.Rotating drawing cone method is
Multifiber is wound, heating draws cone so that together, fiber optic bundle is made in fused fiber splice.Fiber optic bundle is cut in most thin place
Cut, and with output optical fibre welding.Tiretube process is that multifiber is penetrated quartz socket tube, draws cone so that casing and optical fiber by heating
It is melt together.Then equally fiber optic bundle it is most thin place cutting, and with output optical fibre welding.
However, both methods all inevitably needs tapered fiber, fibre diameter becomes smaller at this time, and the angle of divergence becomes larger,
The beam quality for the optical-fiber bundling device made can be deteriorated in this way.Optical Fiber Winding, casing draw cone to require fine people simultaneously
Work operation requires operation technique high.In addition, existing optical-fiber bundling device manufacture craft is also referred to by double clad light
The mode that fine side is punched, and is inserted into tapered pump fibre makes the new method of pump combiner.But this method is due to needing
To use mechanical punching on optical fiber, and fibre diameter material when 1mm is the same below is silica, therefore which needs
Machining accuracy is high, difficult；Simultaneously because punched to optical fiber, so that optical fiber destructurized, mechanical strength
It is deteriorated.
Summary of the invention
For drawing cone is carried out to optical fiber in traditional fiber bundling device preparation process, so that fibre diameter becomes smaller, the angle of divergence becomes
Greatly, the defect of the beam quality of optical-fiber bundling device is influenced, the embodiment of the present invention provides a kind of optical-fiber bundling device and preparation method thereof.
In a first aspect, the embodiment of the present invention provides a kind of optical-fiber bundling device, including output optical fibre and by more input lights
The curing optical fiber beam being thermally formed in fiber insertion tapered, porous casing；One end face of the curing optical fiber beam and the output light
A fine end face welding.
Preferably, the tapered, porous casing is heat-shrinkable T bush.
Preferably, the input light fiber is that primary light fiber is formed by preprocessing；Wherein, the preprocessing includes changing
Learn burn into laser ablation or mechanical lapping.
Second aspect, the embodiment of the present invention also provide a kind of preparation method of optical-fiber bundling device, comprising:
More input light fibers are inserted into the input terminal of tapered, porous casing respectively, form fiber optic bundle；By the two of fiber optic bundle
End face arranges smooth；
The fiber optic bundle is heated, curing optical fiber beam is formed；
By an end face welding of an end face of the curing optical fiber beam and output optical fibre.
Preferably, before more input light fibers are inserted into the input terminal of tapered, porous casing respectively, the method is also
It include: to prepare tapered, porous casing.
Preferably, the tapered, porous casing for preparing specifically includes:
More capillaries are stacked as capillary pipe structure body, shape in outer tube will be inserted into after the encapsulation of capillary pipe structure body both ends
It by the preform is rodlike porous casing using fiber drawing tower at prefabricated rods；
Cone is drawn into the rodlike porous casing heating, taper is formed, the taper end in the middle part of the taper is carried out
Cutting obtains tapered, porous casing.
Preferably, the preparation method of the input light fiber includes:
The covering of primary light fiber is thinned by way of chemical attack, laser ablation or mechanical lapping, obtains input light
Fiber.
Preferably, the aperture of the tapered, porous cannula input end and the cladding diameter of the primary light fiber match,
The aperture of the tapered, porous cannula output end and the cladding diameter of the input light fiber match.
Optical-fiber bundling device provided in an embodiment of the present invention and preparation method thereof, curing optical fiber beam are inserted by more input light fibers
Enter and be thermally formed in tapered, porous casing, fiber optic bundle needs not move through drawing cone operation, so that the fibre core of input light fiber does not become
Change and damage, ensure that the beam quality of optical-fiber bundling device.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram according to optical-fiber bundling device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram according to tapered, porous casing provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram according to fiber optic bundle provided in an embodiment of the present invention and curing optical fiber beam；
Fig. 4 is the structural schematic diagram according to input light fiber provided in an embodiment of the present invention and primary light fiber；
Fig. 5 is the preparation method flow diagram according to optical-fiber bundling device provided in an embodiment of the present invention；
Fig. 6 is each stage structures schematic diagram of production process according to rodlike porous casing provided in an embodiment of the present invention；
Fig. 7 is the production process schematic diagram according to tapered, porous casing provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram according to pump combiner provided in an embodiment of the present invention；
In figure, 1- capillary pipe structure body；2- outer tube；3- prefabricated rods；The rodlike porous casing of 4-；5- taper；6- cone
Shape casing butt end end face；7- taper taper end end face；8- primary light fiber；9- input light fiber；10- tapered, porous casing；
11- fiber optic bundle section；12- fiber optic bundle；13- curing optical fiber beam；14- optical-fiber bundling device；15- output optical fibre；16- taper output light
It is fine；17- pump combiner.
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 embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.The side of the instructions such as term " on ", "lower"
Position or positional relationship are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and simplification of the description,
Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because
This is not considered as limiting the invention.Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection "
It shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, it can understand as the case may be above-mentioned term in the present invention
Concrete meaning.
Fig. 1 is the structural schematic diagram according to optical-fiber bundling device provided in an embodiment of the present invention, and Fig. 2 is to be implemented according to the present invention
The structural schematic diagram for the tapered, porous casing that example provides.Referring to Figures 1 and 2, the optical-fiber bundling device 14 include output optical fibre 15 with
And the curing optical fiber beam 13 being thermally formed in tapered, porous casing 10 is inserted by more input light fibers 9；The curing optical fiber beam
One end face welding of 13 end face and the output optical fibre 15.
One end face welding of the output end and output optical fibre 15 of curing optical fiber beam 13.Curing optical fiber beam 13 and output optical fibre 15
It is able to use the heat sources such as oxyhydrogen flame, graphite silk, electrode, carbon dioxide and carries out welding.As shown in Figure 1, input light fiber 9 is in taper
It is distributed in porous casing 10 in dispersion shape, optical fiber heat dissipation performance is higher.
It should be noted that traditional optical-fiber bundling device, requires heating tapered fiber, at this time optical fiber during the preparation process
Diameter becomes smaller, and the angle of divergence becomes larger, and the beam quality for the optical-fiber bundling device made in this way will receive influence.And traditional light
Fine beam is to draw cone by heating so that casing and fiber fuse are to together, and complicated for operation, requirement on machining accuracy is high.And the present invention is real
The optical-fiber bundling device 14 of example offer is applied, curing optical fiber beam 13 is to be inserted into tapered, porous casing 10 to add by more input light fibers 9
Thermosetting, preparation process are simple.Fiber optic bundle needs not move through drawing cone operation, and the fibre core of input light fiber 9 is avoided to bore light due to drawing
It is fine and be damaged, it ensure that the beam quality of optical-fiber bundling device 14.
Fig. 3 is the structural schematic diagram according to fiber optic bundle provided in an embodiment of the present invention and curing optical fiber beam.Referring to Fig. 2 and
More input light fibers 9 are inserted into tapered, porous casing 10, form fiber optic bundle 12 by Fig. 3.Fiber optic bundle section 11 is as shown in Figure 3.It adopts
Tapered, porous casing 10 is heated with electrode discharge, oxyhydrogen flame heating, graphite heating or the mode of laser heating, so that
Tapered, porous casing 10 is shunk, and structure is fixed, and forms curing optical fiber beam 13.
Optical-fiber bundling device provided in an embodiment of the present invention, curing optical fiber beam are inserted into tapered, porous set by more input light fibers
It is thermally formed in pipe, preparation process is simple.Fiber optic bundle needs not move through drawing cone operation, so that the fibre core of input light fiber does not become
Change and damage, ensure that the beam quality of optical-fiber bundling device.
On the basis of the above embodiments, the tapered, porous casing 10 is heat-shrinkable T bush.In the present embodiment, tapered, porous
Casing 10 is heat-shrinkable T bush, provides insulation protection for optical fiber.Have the characteristics that high-temperature shrinkage, fire-retardant, insulation corrosion protection.Using electrode
The mode that electric discharge, oxyhydrogen flame heating, graphite heating or laser heat heats tapered, porous casing 10, so that taper is more
Hole sleeve 10 is shunk, and structure is fixed, and forms curing optical fiber beam 13.
In one embodiment, tapered, porous casing 10 is prepared by materials such as quartz, sapphires.By more input lights
Fiber 9 is inserted into after tapered, porous casing 10, using electrode discharge, oxyhydrogen flame heating, graphite heating or the side of laser heating
Formula heats tapered, porous casing 10, can be in the effect of surface tension of liquid since silica is under conditions of micro- melt
Under collapse, formed curing optical fiber beam 13.
Fig. 4 is the structural schematic diagram according to input light fiber 9 provided in an embodiment of the present invention and primary light fiber 8.Reference
Fig. 4, input light fiber 9 are that primary light fiber 8 is formed by preprocessing；Wherein, the preprocessing includes chemical attack, laser incising
Erosion or mechanical lapping.
Preprocessing is carried out to primary light fiber 8, to reduce covering ratio.Using chemical attack, laser ablation, mechanical lapping
Etc. modes remove the part of clad of primary light fiber 8, using the fiber optic bundle for reducing the input light fiber 9 after covering ratio and making,
The core size and structure of optical fiber are unaffected, and fiber optic bundle has bigger fibre core duty ratio.
Fig. 5 is the preparation method flow diagram according to optical-fiber bundling device provided in an embodiment of the present invention, referring to Fig.1, is schemed
2, Fig. 3 and Fig. 5, this method comprises:
501, more input light fibers 9 are inserted into the input terminal of tapered, porous casing 10 respectively, form fiber optic bundle 12；By institute
The both ends of the surface arrangement for stating fiber optic bundle 12 is smooth；
More input light fibers 9 are inserted into the input terminal of tapered, porous casing 10 respectively, 12 taper end of fiber optic bundle is exceeded
Input light fiber 9 is cut, and grind to 12 taper end end face of fiber optic bundle smooth.Not according to 9 quantity of input light fiber
Together, seven core bundling devices, 19 core bundling devices or 37 core bundling devices can be prepared.The present embodiment is with the system of seven core bundling devices
It is illustrated for Preparation Method.9 quantity of input light fiber is not limited only to this.
502, the fiber optic bundle 12 is heated, curing optical fiber beam 13 is formed；
Specifically, referring to Fig. 2 and Fig. 3, in the present embodiment, tapered, porous casing 10 is heat-shrinkable T bush, is provided absolutely for optical fiber
Edge protection.Have the characteristics that high-temperature shrinkage, fire-retardant, insulation corrosion protection.By more input light fibers 9 be inserted into tapered, porous casings 10 it
Afterwards, tapered, porous casing 10 is added by the way of electrode discharge, oxyhydrogen flame heating, graphite heating or laser heating
Heat, so that tapered, porous casing 10 is shunk, structure is fixed, and forms curing optical fiber beam 13.
It should be noted that traditional optical-fiber bundling device, requires heating tapered fiber, at this time optical fiber during the preparation process
Diameter becomes smaller, and the angle of divergence becomes larger, and the beam quality for the optical-fiber bundling device made in this way will receive influence.And traditional light
Fine beam is to draw cone by heating so that casing and fiber fuse are to together, and complicated for operation, requirement on machining accuracy is high.And the present invention is real
The optical-fiber bundling device 14 of example offer is applied, curing optical fiber beam 13 is to be inserted into tapered, porous casing 10 to add by more input light fibers 9
Thermosetting, preparation process are simple.Fiber optic bundle 12 needs not move through drawing cone operation, and the fibre core of input light fiber is avoided to bore light due to drawing
It is fine and be damaged, it ensure that the beam quality of optical-fiber bundling device 14.
503, by an end face welding of an end face of the curing optical fiber beam 13 and the output optical fibre 15.
Referring to Figures 1 and 2, the left side welding of the output end of curing optical fiber beam 13 and output optical fibre 15 forms optical fiber and closes
Beam device 14.Curing optical fiber beam 13 and output optical fibre 15 are able to use the progress of the heat sources such as oxyhydrogen flame, graphite silk, electrode, carbon dioxide
Welding.As shown in Fig. 2, input light fiber 9 is distributed in tapered, porous casing 10 in dispersion shape, optical fiber heat dissipation performance is higher.Make
It is whole with preferable heat dissipation performance to obtain optical-fiber bundling device 14.
The preparation method of optical-fiber bundling device provided in an embodiment of the present invention, curing optical fiber beam are inserted by more input light fibers
It is thermally formed in tapered, porous casing, preparation process is simple.Fiber optic bundle needs not move through drawing cone operation, so that input light fiber
Fibre core does not change and damages, and ensure that the beam quality of optical-fiber bundling device.
On the basis of the various embodiments described above, more input light fibers 9 are being inserted into the defeated of tapered, porous casing 10 respectively
Before entering end, the method also includes: prepare tapered, porous casing.
Fig. 6 is each stage structures schematic diagram of production process according to rodlike porous casing provided in an embodiment of the present invention；Fig. 7
For according to the production process schematic diagram of tapered, porous casing 10 provided in an embodiment of the present invention.Referring to figure 6 and figure 7, taper is prepared
Porous casing specifically includes:
More capillaries are stacked as capillary pipe structure body 1, outer tube 2 will be inserted into after the encapsulation of 1 both ends of capillary pipe structure body
Interior formation prefabricated rods 3 are drawn prefabricated rods 3 for rodlike porous casing 4 using fiber drawing tower.
Specifically, it is stacked as capillary pipe structure body 1 using the capillary that duty ratio is 90% or more, by capillary pipe structure body
It is inserted into outer tube 2 after the encapsulation of 1 both ends and forms prefabricated rods 3.Prefabricated rods 3 are placed on fiber drawing tower, and draw out institute
The rodlike porous casing 4 needed.When drawing rodlike porous casing 4, need to extract vacuum in prefabricated rods 3, so that between capillary
Gap shrink at high temperature.
It should be noted that prefabricated rods 3 need preparatory batch making, pre-production before preparing optical-fiber bundling device 14
Prefabricated rods 3 have high consistency.When drawing casing, the rodlike of various outer diameter can be drawn out with the prefabricated rods 3 of same specification
Porous casing 4.
Rodlike porous casing 4 can also be by carrying out mechanical punching, ultrasonic drilling or laser incising for rodlike solid cannula
The mode of erosion makes.
Further, cone is drawn into the rodlike heating of porous casing 4, forms taper 5, it will be in the taper 5
The taper end in portion is cut, and tapered, porous casing 10 is obtained.
Rodlike porous casing 4 is heated and draws cone, forms taper 5.Wherein, heating method can using electrode discharge,
The mode of oxyhydrogen flame heating, graphite heating or laser heating.6 structure of taper butt end end face and taper taper end end
The structure in face 7 is as shown in Figure 7.It is cut from taper taper end end face 7, obtains tapered, porous casing 10.
On the basis of the various embodiments described above, the preparation method of the input light fiber includes:
The covering of primary light fiber 8 is thinned by way of chemical attack, laser ablation or mechanical lapping, obtains input light
Fiber 9.
Referring to Fig. 4, preprocessing is carried out to primary light fiber 8, to reduce covering ratio.Using chemical attack, laser ablation,
The modes such as mechanical lapping remove the part of clad of primary light fiber 8, the fiber optic bundle 12 made in this way, the fibre core of input light fiber 9
Size and structure are unaffected, and fiber optic bundle 12 has bigger fibre core duty ratio.
On the basis of the various embodiments described above, the aperture of tapered, porous cannula input end and the covering of primary light fiber 8 are straight
Diameter matches, and the aperture of tapered, porous cannula output end and the cladding diameter of the input light fiber 9 match.So that input light
Fiber 9 can smoothly be inserted into the input terminal of tapered, porous casing 10.
Fig. 8 is the structural schematic diagram according to pump combiner 17 provided in an embodiment of the present invention.Referring to Fig.1 and Fig. 8, pass through
Curing optical fiber beam 13 and output optical fibre 15, additionally it is possible to prepare pump combiner 17.According to function classification is used, optical-fiber bundling device can
To be divided into two major classes: power beam combiner and pump combiner.Power beam combiner is exactly that multichannel single-mode laser is closed to beam to a light
It is exported in fibre, for improving the output power of laser.Pump combiner is mainly by multichannel pumping combiner into an optical fiber
Output, is mainly used to improve pump power.Output optical fibre 15 is drawn and is bored, and the middle part taper end of the output optical fibre after drawing cone carries out
Cutting obtains taper output optical fibre 16, by the butt end of taper output optical fibre 16 and 13 welding of curing optical fiber beam, obtains pumping and closes beam
Device 17.
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 (8)
1. a kind of optical-fiber bundling device, which is characterized in that be inserted into tapered, porous including output optical fibre and by more input light fibers
The curing optical fiber beam being thermally formed in casing；One end face of the curing optical fiber beam and an end face welding of the output optical fibre.
2. optical-fiber bundling device according to claim 1, which is characterized in that the tapered, porous casing is heat-shrinkable T bush.
3. optical-fiber bundling device according to claim 1, which is characterized in that the input light fiber is that primary light fiber passes through
Preprocessing is formed；Wherein, the preprocessing includes chemical attack, laser ablation or mechanical lapping.
4. a kind of preparation method of optical-fiber bundling device characterized by comprising
More input light fibers are inserted into the input terminal of tapered, porous casing respectively, form fiber optic bundle；By the both ends of the surface of fiber optic bundle
It arranges smooth；
The fiber optic bundle is heated, curing optical fiber beam is formed；
By an end face welding of an end face of the curing optical fiber beam and output optical fibre.
5. the preparation method of optical-fiber bundling device according to claim 4, which is characterized in that divide by more input light fibers
Not Cha Ru before the input terminal of tapered, porous casing, the method also includes:
Prepare tapered, porous casing.
6. the preparation method of optical-fiber bundling device according to claim 5, which is characterized in that described to prepare tapered, porous casing
It specifically includes:
More capillaries are stacked as capillary pipe structure body, will be inserted into outer tube after the encapsulation of capillary pipe structure body both ends formed it is pre-
Stick processed, using fiber drawing tower by the preform be rodlike porous casing；
Cone is drawn into the rodlike porous casing heating, taper is formed, the taper end in the middle part of the taper is cut,
Obtain tapered, porous casing.
7. the preparation method of optical-fiber bundling device according to claim 4, which is characterized in that the preparation of the input light fiber
Method includes:
The covering of primary light fiber is thinned by way of chemical attack, laser ablation or mechanical lapping, obtains input light fiber.
8. the preparation method of optical-fiber bundling device according to claim 7, which is characterized in that the tapered, porous casing input
The aperture at end and the cladding diameter of the primary light fiber match, the aperture of the tapered, porous cannula output end with it is described defeated
The cladding diameter for entering fiber optics matches.
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| CN201811150440.XA CN109239847A (en) | 2018-09-29 | 2018-09-29 | Optical-fiber bundling device and preparation method thereof |
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| CN201811150440.XA CN109239847A (en) | 2018-09-29 | 2018-09-29 | Optical-fiber bundling device and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110441862A (en) * | 2019-08-02 | 2019-11-12 | 桂林电子科技大学 | A kind of clutter reduction type multi-core optical fiber beam splitter of low insertion loss |
| CN111499182A (en) * | 2020-03-23 | 2020-08-07 | 中国科学院西安光学精密机械研究所 | Online drawing preparation method and system of distributed side-pumped coupled optical fiber |
| CN112563869A (en) * | 2020-12-09 | 2021-03-26 | 光惠（上海）激光科技有限公司 | Composite all-fiber laser system |
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| CN114265149A (en) * | 2021-12-22 | 2022-04-01 | 长飞（武汉）光系统股份有限公司 | Method for manufacturing beam combiner |
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