CN105334577A - Fluoride fiber and quartz fiber fusing equipment and fusing method - Google Patents
Fluoride fiber and quartz fiber fusing equipment and fusing method Download PDFInfo
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- CN105334577A CN105334577A CN201510751221.7A CN201510751221A CN105334577A CN 105334577 A CN105334577 A CN 105334577A CN 201510751221 A CN201510751221 A CN 201510751221A CN 105334577 A CN105334577 A CN 105334577A
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- fibre
- fiber
- fluoride fiber
- silica fibre
- fluoride
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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
- 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
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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
- G02B6/2555—Alignment or adjustment devices for aligning prior to splicing
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention is applicable to the technical field of generation and applications of high-power mid-infrared fiber lasers and mid-infrared super-continuum spectrum source, and provides fluoride fiber and quartz fiber fusing equipment, which comprises two fiber holders and a heating device, wherein the heating device is arranged at the place where the quartz fiber and the fluoride fiber are in butt joint and close to the quartz fiber side for heating the quartz fiber, and the heating temperature is higher than a melting point of the fluoride fiber and lower than the melting point of the quartz fiber; and the two fiber holders hold the quartz fiber and the fluoride fiber respectively, adjustment is carried out in X, Y and Z directions to enable fiber cores of the quartz fiber and the fluoride fiber to be aligned and the two fiber cores are contacted, and after heating, the two fiber holders are pushed in a face to face mode along the horizontal direction to enable the fiber core of the quartz fiber and the fiber core of the fluoride fiber to be fused. The fusing equipment simplifies the fusing process, the fusing cost is low, and the fusing point after fusing has the advantages of low loss, high strength, high power resistance and the like.
Description
Technical field
The invention belongs to high power mid-infrared fiber laser and in the generation of infrared super continuum source and applied technical field, particularly relate to welder and the welding process of a kind of fluoride fiber and silica fibre.
Background technology
Mid-infrared fiber laser and super continuum source laser spectroscopy, environmental monitoring, biomedicine, laser radar, science and techniques of defence, in the field such as infrared fundamental research all have a wide range of applications, be focus and the difficulties of research in recent years always.Based on super continuum source many employings highly nonlinear optical fiber of the near-infrared band of optical fiber or high non-linear photon crystal optical fiber as nonlinear medium, its host material is quartz glass, but quartz glass causes very greatly transmission wavelength to be difficult to extend to more than 2500nm because ionic lattice vibrates in middle-infrared band loss.In current acquisition, the fiber optic materials of infrared super continuum source is mainly has more low-loss soft glass optical fiber, as Telluride fibers, chalcogenide fiber, fluoride fiber etc. in middle-infrared band.In addition, for about 3 μm mid-infrared fiber lasers, its gain fibre mostly is er-doped fluoride fiber and mixes holmium fluoride fiber.
Fluoride fiber in actual applications, needs to carry out butt coupling with silica fibre.But the fusing point of fluoride fiber about 300 DEG C, silica fibre fusing point about 1500 DEG C, so large fusing point gap makes the direct welding of fluoride fiber and silica fibre become abnormal difficult.The fluoride fiber of current report and the coupling scheme of silica fibre mainly contain arc discharge welding (ARCfusionsplicing), some glue welding (gluesplicing), mechanical couplings docks (mechanicalsplice) and thermal welding (thermalsplicing).Wherein, mechanical couplings docking and hot fusing method is only had to bear high power.But mechanical couplings docking mode needs accurate adjustment rack, and under high power conditions, because laser recoil strength easily occurs that optical fiber is shaken, cause coupling efficiency to reduce, severe patient can burn out fiber end face or prime pumped laser system.Hot fusing method then needs to carry out coating film treatment to increase the transmitance of light, complex process at silica fibre end face at present, is inconvenient to use and cost intensive.
Summary of the invention
Technical matters to be solved by this invention is the welder and the welding process that provide a kind of fluoride fiber and silica fibre, is intended to solve the fusion process complex process of existing fluoride fiber and silica fibre and the problem of cost intensive.
The present invention is achieved in that the welder of a kind of fluoride fiber and silica fibre, comprises two fibre holders and can carry out the heating arrangement that heats between 200 degree to 1000 degree;
Described heating arrangement is placed in position that silica fibre and fluoride fiber connect and near the side of described silica fibre, for heating described silica fibre, heating-up temperature higher than the fusing point of fluoride fiber lower than the fusing point of silica fibre;
Described silica fibre and described fluoride fiber are clamped by described two fibre holders respectively, and carry out regulating in XYZ tri-directions and described silica fibre is aimed at the fibre core of described fluoride fiber and two fibre cores contact, and described two fibre holders are advanced in the horizontal direction in opposite directions simultaneously make the fibre core of silica fibre and the fibre core welding of fluoride fiber after the heating.
Further, described welder also comprises fiber core imaging device, described fiber core imaging device is placed in the position that described silica fibre and described fluoride fiber connect, and makes described fibre holder can carry out precise positioning to fibre core for carrying out identification to the fibre core of fluoride fiber and silica fibre.
Further, described welder also comprises laser instrument, circulator, the first power meter and the second power meter, and described laser instrument is connected with the non-welding end of described silica fibre, for providing the LASER Light Source of test;
Described first power meter is connected with the non-welding end of described fluoride fiber, provides with reference to adjustment data with for testing the loss after described fluoride fiber and silica fibre welding for aiming at for the fibre core of the fluoride fiber before welding;
Described circulator is placed between described laser instrument and described silica fibre, and is connected with described laser instrument, described silica fibre respectively, for detecting the return loss of fusion point;
Described second power meter is connected with described circulator, for detecting the return loss of fusion point.
Further, described heating arrangement is carbon filament heating arrangement, carbon dioxide laser or resistance wire.
Further, described welder also comprises inert gas generator, and described inert gas generator is placed in by described two fibre holders, for exporting inert gas when two fibre cores weld.
The present invention also provides the welding process of a kind of fluoride fiber and silica fibre, comprises the following steps:
Steps A, the silica fibre and fluoride fiber that use two fibre holders to clamp to need welding, and make to need the fibre core of the silica fibre of welding and fluoride fiber to aim at and two fibre cores contact;
The heating arrangement that step B, use can be carried out heating between 200 degree to 1000 degree heats the silica fibre in two fibre core aligned positions;
Step C, heating are rapid afterwards to be advanced described two fibre holders simultaneously in the horizontal direction in opposite directions, and the fluoride fiber making fusing point lower presents molten condition and forms welding with silica fibre.
Further, also comprise step D, described silica fibre and described fluoride fiber before described steps A need to divest overlay and the end face of the one end needing welding is cut flat.
Further, described step B specifically comprises the following steps:
Step B01, the heating location controlling heating arrangement, heat time and heating power;
Step B02, temperature is heated to higher than the fusing point of fluoride fiber and the fusing point lower than described silica fibre to described silica fibre.
Further, the operation of described step B and step C is all carried out when there being inert gas to protect.
Further, described welding process also comprises at least one following step:
Step e, at the fibre core of described silica fibre and fluoride fiber on time, use laser instrument and fiber core imaging device identifies two fibre cores, precise positioning;
Step F, test the output power after two fused fiber splices and detect the return loss of fusion point.
The present invention compared with prior art, beneficial effect is: described fluoride fiber and the welder of silica fibre use two fibre holders be fixed the silica fibre and fluoride fiber that need welding and fibre core is aimed at, then heating arrangement is used to heat silica fibre, heating-up temperature higher than the fusing point of fluoride fiber lower than the fusing point of silica fibre, and rapid after the heating two fibre holders to be advanced in the horizontal direction in opposite directions simultaneously, make two fibre core weldings, this equipment simplifies the process of welding, and welding cost is low, simultaneously, fusion point after welding has low-loss, high strength, the features such as resistance to high power.
Accompanying drawing explanation
Fig. 1 is the welder schematic diagram of the fluoride fiber that provides of the embodiment of the present invention and silica fibre;
Fig. 2 is the welding process schematic diagram of the fluoride fiber that provides of the embodiment of the present invention and silica fibre.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The welder of a kind of fluoride fiber and silica fibre and welding process, stable carbon filament heating arrangement is utilized to carry out Heated asymmetrically to two kinds of optical fiber, make to have two kinds of fiber fuses of different hot melt and realize permanent connection, the fusion point adopting this welding process to be formed has the features such as low-loss, high strength, resistance to high power.
As shown in Figure 1, for the present invention one preferred embodiment, the welder of a kind of fluoride fiber and silica fibre, comprise two fibre holders 11 and the heating arrangement 12 that heats can be carried out between 200 degree to 1000 degree, silica fibre 13, fluoride fiber 14 are clamped by two fibre holders 11 respectively, and meticulous adjustment can be carried out in XYZ tri-directions silica fibre 13 is aimed at the fibre core of fluoride fiber 14, make two fibre cores contact simultaneously.Heating arrangement 12 is placed in position that silica fibre 13 and fluoride fiber 14 connect and near the side of silica fibre 13, for heating silica fibre 13.When being heated to the fusing point of temperature higher than the fusing point of fluoride fiber 14 lower than silica fibre 13, advanced in opposite directions in the horizontal direction by two fibre holders 11 simultaneously and make the fibre core of silica fibre 13 and the fibre core welding of fluoride fiber 14, the temperature range of this fusing point is 200 degree to 1000 degree.
Fluoride fiber 14 in the present embodiment can be single-mode fluoride object light fibre, multimode fluoride fiber, rare-earth-doped fluoride optical fiber etc.Heating arrangement 12 can be carbon filament heating arrangement, carbon dioxide laser or resistance wire.
The welder of fluoride fiber and silica fibre also comprises fiber core imaging device 17, fiber core imaging device 17 is placed in the position that silica fibre 13 connects with fluoride fiber 14, makes fibre holder 11 can carry out precise positioning to fibre core for carrying out identification to the fibre core of fluoride fiber 14 and silica fibre 13.
The welder of fluoride fiber and silica fibre also comprises laser instrument 15, first power meter 18, circulator 16 and the second power meter 19, and laser instrument 15 is connected with the non-welding end of silica fibre 13 by circulator 16, for providing the LASER Light Source of test.First power meter 18 is connected with the non-welding end of fluoride fiber 14, and aiming at for the fibre core before welding for coordinating fibre holder 11 and fiber core imaging device 17 provides with reference to adjustment data with for testing the output power after fluoride fiber 14 and silica fibre 13 welding and loss.Circulator 16 is placed between laser instrument 15 and silica fibre 13, and is connected with laser instrument 15, silica fibre 13 respectively, for detecting the return loss of fusion point.Second power meter 19 is connected with circulator 16, for detecting the return loss after welding.
The welder of fluoride fiber and silica fibre also comprises inert gas generator, it is other that inert gas generator is placed in two fibre holders 11, for exporting inert gas when two fibre cores weld, namely near fusion point, export inert gas in heating and progradation.In the present embodiment, adopt highly purified argon gas as blanket gas.
As shown in Figure 2, the welding process of a kind of fluoride fiber and silica fibre, comprises the following steps:
Steps A, the silica fibre 13 and fluoride fiber 14 that use two fibre holders 11 to clamp to need welding, and make to need the fibre core of the silica fibre 13 of welding and fluoride fiber 14 to aim at and two fibre cores contact.
Step B, silica fibre 13 side using the heating arrangement 12 that can carry out heating between 200 degree to 1000 degree to be partial to melt temperature in two fibre core aligned positions higher are heated.
Step C, heating are rapid afterwards to be advanced two fibre holders 11 simultaneously in the horizontal direction in opposite directions, and the fluoride fiber 14 making fusing point lower presents molten condition and forms welding with silica fibre 13.
The operation of step B and step C is all carried out when there being inert gas to protect.
Also comprise step D before steps A, silica fibre 13 needs to divest overlay with fluoride fiber 14 and cuts flat by the end face of the one end needing welding.
Step B specifically comprises the following steps: step B01, the heating location controlling heating arrangement 12, heat time and heating power; Step B02, be heated to temperature higher than the fusing point of fluoride fiber 14 and the fusing point lower than silica fibre 13 to silica fibre 13, namely heating and temperature control is higher than 200 degree and be less than 1000 degree.
The welding process of fluoride fiber and silica fibre also comprises at least one following step:
Step e, at the fibre core of silica fibre 13 and fluoride fiber 14 on time, use laser instrument 15 and fiber core imaging device 17 identifies two fibre cores, precise positioning; Step F, test the output power after two fused fiber splices and detect the return loss of fusion point.
The welder of fluoride fiber of the present invention and silica fibre and welding process can realize the low loss welding of fluoride fiber 14 and conventional silica fibre 13, make to have the fiber fuse of different hot melt and realize permanent connection.When welding by regulating the parameters such as the heating power of heating arrangement 12, heat time, heating location and push-in stroke can the fluoride fiber 14 of the different core size of welding and different surrounding layer size and silica fibre 13, the all-fiber of infrared super continuum source and middle infrared laser in can realizing, increases stability and the compactedness of system.Compared with the additive method mentioned in the world, the present invention neither needs selective refraction rate to mate glue, does not also need to carry out plated film to silica fibre end face, does not more need complicated high precision adjusting rack.Fusion point after welding has the features such as low-loss, high strength, resistance to high power, and the coupling efficiency of welding simultaneously can keep stable under high power running.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a welder for fluoride fiber and silica fibre, is characterized in that, comprises two fibre holders and can carry out the heating arrangement that heats between 200 degree to 1000 degree;
Described heating arrangement is placed in position that silica fibre and fluoride fiber connect and near the side of described silica fibre, for heating described silica fibre, heating-up temperature higher than the fusing point of fluoride fiber lower than the fusing point of silica fibre;
Described silica fibre and described fluoride fiber are clamped by described two fibre holders respectively, and carry out regulating in XYZ tri-directions and described silica fibre is aimed at the fibre core of described fluoride fiber and two fibre cores contact, and described two fibre holders are advanced in the horizontal direction in opposite directions simultaneously make the fibre core of silica fibre and the fibre core welding of fluoride fiber after the heating.
2. the welder of fluoride fiber according to claim 1 and silica fibre, it is characterized in that, described welder also comprises fiber core imaging device, described fiber core imaging device is placed in the position that described silica fibre and described fluoride fiber connect, and makes described fibre holder can carry out precise positioning to fibre core for carrying out identification to the fibre core of fluoride fiber and silica fibre.
3. the welder of fluoride fiber according to claim 1 and 2 and silica fibre, it is characterized in that, described welder also comprises laser instrument, circulator, the first power meter and the second power meter, described laser instrument is connected with the non-welding end of described silica fibre, for providing the LASER Light Source of test;
Described first power meter is connected with the non-welding end of described fluoride fiber, provides with reference to adjustment data with for testing the loss after described fluoride fiber and silica fibre welding for aiming at for the fibre core of the fluoride fiber before welding;
Described circulator is placed between described laser instrument and described silica fibre, and is connected with described laser instrument, described silica fibre respectively, for detecting the return loss of fusion point;
Described second power meter is connected with described circulator, for detecting the return loss of fusion point.
4. the welder of fluoride fiber according to claim 1 and silica fibre, is characterized in that, described heating arrangement is carbon filament heating arrangement, carbon dioxide laser or resistance wire.
5. the welder of fluoride fiber according to claim 1 and silica fibre, it is characterized in that, described welder also comprises inert gas generator, and described inert gas generator is placed in by described two fibre holders, for exporting inert gas when two fibre cores weld.
6. a welding process for fluoride fiber and silica fibre, is characterized in that, comprises the following steps:
Steps A, the silica fibre and fluoride fiber that use two fibre holders to clamp to need welding, and make to need the fibre core of the silica fibre of welding and fluoride fiber to aim at and two fibre cores contact;
The heating arrangement that step B, use can be carried out heating between 200 degree to 1000 degree heats the silica fibre in two fibre core aligned positions;
Step C, heating are rapid afterwards to be advanced described two fibre holders simultaneously in the horizontal direction in opposite directions, and the fluoride fiber making fusing point lower presents molten condition and forms welding with silica fibre.
7. the welding process of fluoride fiber according to claim 6 and silica fibre, is characterized in that, also comprising step D, described silica fibre and described fluoride fiber before described steps A needs to divest overlay and cut flat by the end face of the one end needing welding.
8. the welding process of fluoride fiber according to claim 6 and silica fibre, is characterized in that, described step B specifically comprises the following steps:
Step B01, the heating location controlling heating arrangement, heat time and heating power;
Step B02, temperature is heated to higher than the fusing point of fluoride fiber and the fusing point lower than described silica fibre to described silica fibre.
9. the welding process of fluoride fiber according to claim 6 and silica fibre, is characterized in that, the operation of described step B and step C is all carried out when there being inert gas to protect.
10. the fluoride fiber according to claim 6,7 or 8 and the welding process of silica fibre, is characterized in that, described welding process also comprises at least one following step:
Step e, at the fibre core of described silica fibre and fluoride fiber on time, use laser instrument and fiber core imaging device identifies two fibre cores, precise positioning;
Step F, test the output power after two fused fiber splices and detect the return loss of fusion point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751221.7A CN105334577A (en) | 2015-11-06 | 2015-11-06 | Fluoride fiber and quartz fiber fusing equipment and fusing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510751221.7A CN105334577A (en) | 2015-11-06 | 2015-11-06 | Fluoride fiber and quartz fiber fusing equipment and fusing method |
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| CN105334577A true CN105334577A (en) | 2016-02-17 |
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| CN201510751221.7A Pending CN105334577A (en) | 2015-11-06 | 2015-11-06 | Fluoride fiber and quartz fiber fusing equipment and fusing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405742A (en) * | 2016-10-20 | 2017-02-15 | 南方科技大学 | Optical fiber combiner and manufacturing method thereof |
| CN108459374A (en) * | 2018-04-08 | 2018-08-28 | 芜湖致新信息科技有限公司 | A kind of optical fiber splicer being used for optical fiber and manufacture |
| CN110716264A (en) * | 2019-09-12 | 2020-01-21 | 北京工业大学 | Soft glass optical fiber welding method |
| CN113955926A (en) * | 2021-12-03 | 2022-01-21 | 吉林大学 | Low-temperature fusion welding method for improving strength of fusion welding point between soft glass optical fiber and quartz optical fiber |
| CN114859469A (en) * | 2022-05-27 | 2022-08-05 | 哈尔滨工程大学 | Welding method of aluminum fluoride-based glass fiber and quartz fiber |
| CN114924353A (en) * | 2022-05-27 | 2022-08-19 | 哈尔滨工程大学 | Low-loss fusion welding method for fluorine tellurate glass fiber and quartz fiber |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405742A (en) * | 2016-10-20 | 2017-02-15 | 南方科技大学 | Optical fiber combiner and manufacturing method thereof |
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| CN110716264A (en) * | 2019-09-12 | 2020-01-21 | 北京工业大学 | Soft glass optical fiber welding method |
| CN113955926A (en) * | 2021-12-03 | 2022-01-21 | 吉林大学 | Low-temperature fusion welding method for improving strength of fusion welding point between soft glass optical fiber and quartz optical fiber |
| CN114859469A (en) * | 2022-05-27 | 2022-08-05 | 哈尔滨工程大学 | Welding method of aluminum fluoride-based glass fiber and quartz fiber |
| CN114924353A (en) * | 2022-05-27 | 2022-08-19 | 哈尔滨工程大学 | Low-loss fusion welding method for fluorine tellurate glass fiber and quartz fiber |
| CN114924353B (en) * | 2022-05-27 | 2023-09-29 | 哈尔滨工程大学 | Low-loss fusion welding method for fluorine tellurate glass optical fiber and quartz optical fiber |
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