CN103472535A - Manufacturing method of fiber laser combiner - Google Patents
Manufacturing method of fiber laser combiner Download PDFInfo
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- CN103472535A CN103472535A CN 201310410425 CN201310410425A CN103472535A CN 103472535 A CN103472535 A CN 103472535A CN 201310410425 CN201310410425 CN 201310410425 CN 201310410425 A CN201310410425 A CN 201310410425A CN 103472535 A CN103472535 A CN 103472535A
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- fiber laser
- preform
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- bundling device
- grinding
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention discloses a manufacturing method of a fiber laser combiner. The method comprises the steps of (1) selecting n optical fiber performs, (2) grinding one end of each optical fiber perform, (3) combining the ground ends of the n optical fiber performs, and (4) carrying out melting and wiredrawing on the combined optical fiber performs. The manufacturing method of the fiber laser combiner is high in reliability and flexible in machining.
Description
Technical field
The invention belongs to the fiber laser field, relate to a kind of optical-fiber laser bundling device method for making, relate in particular to the optical-fiber laser bundling device method for making that a plurality of fiber laser output is closed to bundle.
Background technology
The many merits such as fiber laser has good beam quality, compact conformation, volume is little, quality is light, easily heat radiation, good operating stability, be widely used in fields such as industrial processes, medical engineering, modern national defenses.Along with the continuous expansion of fiber laser application, for its output power, higher requirement is arranged.Such as cuttings than thick sheet metal for some, welding, the output power of fiber laser need to reach thousands of watts and even go up myriawatt.
At present, for business-like single fiber laser output power, in kW level level, if a nearly step improves the output power of laser instrument, need to increase pump power, can increase like this insecurity of optical fiber and optical fibre device.For obtaining the Laser output of several multikilowatts, be that a plurality of powerful single-mode fiber laser is coupled in simple optical fiber and exports by optical-fiber laser bundling device (n * 1) at present in the world, obtain thousands of watts of level lasers.The method for making of conventional optical fibers laser bundling device (n * 1) is as follows: at first n root optical fiber is carried out to certain technical finesse, then the optical fiber after processing is carried out to the beam combination fused biconical taper, finally will draw wimble fraction to be cut and end face processing, then carry out welding with another output optical fibre.In the making of above-mentioned optical-fiber laser bundling device, when being carried out to the fused biconical taper PROCESS FOR TREATMENT, fibre bundle has larger difficulty, the manufacture craft of optical-fiber laser bundling device is had to higher requirement, number of fibers also has certain limitation.In addition, because there is the optical fiber fusing point in bundling device inside, make this optical-fiber laser bundling device when the laser of carrying higher-wattage, can produce larger light loss, produce a large amount of heat, melting temperature is too high, and insecurity is very big.
Summary of the invention
In order to solve existing technical matters in background technology, the present invention proposes a kind of optical-fiber laser bundling device method for making, reliability is high, and processing is flexibly.
Technical solution of the present invention is: optical-fiber laser bundling device method for making is characterized in that: said method comprising the steps of:
1) choose n root preform;
2) end of every preform ground;
3) by step 2) in the end of grinding of n root preform after grinding combine;
5) the n root preform of combining is carried out to melt drawing.
Above-mentioned steps 2) concrete steps are: every preform one end is carried out to the milled processed of certain-length, make the grinding rear end face of prefabricated rods become fan-shaped that interior angle is (360/n) °.
Above-mentioned steps 3) also comprise afterwards step 4) elimination is ground to by the fan-shaped drift angle place of preform one end after grinding.
Advantage of the present invention is:
Optical-fiber laser bundling device provided by the present invention, by carrying out certain PROCESS FOR TREATMENT and assembling to n root preform, then by the optical-fiber laser bundling device of its becoming one of fusion draw.The method for making of this optical-fiber laser bundling device is compared and is had plurality of advantages with technology formerly: at first, the optical-fiber laser bundling device that this method is made, owing to there is no the optical fiber fusing point, so when the laser that higher-wattage is arranged passes through, can not produce too much welding power attenuation, thereby there is higher reliability.Secondly, because the preform yardstick is relatively large, be easy to processing and process, so can carry out multiple flexible processing to preform, the quantity of prefabricated rods is relatively unrestricted, thereby meets various process requirements.Again, this method for making has been avoided formerly the excessive problem of optical fiber fused tapering PROCESS FOR TREATMENT difficulty in technology.
The accompanying drawing explanation
Fig. 1 is the preform structural drawing;
Fig. 2 is the preform schematic diagram after processing is processed;
Fig. 3 (a) is the machining sketch chart of specific embodiments of the invention one;
Fig. 3 (b) is the end view of Fig. 3 (a);
Fig. 4 is the optical-fiber laser bundling device schematic diagram of the specific embodiment of the invention one;
Fig. 5 (a), Fig. 5 (b) are the machining sketch charts of specific embodiments of the invention two;
The fiber laser assembling schematic diagram of Fig. 6 (a) specific embodiments of the invention two;
Fig. 6 (b) is the end view of Fig. 6 (a);
Embodiment
Optical-fiber laser bundling device provided by the present invention (n * 1), to process by n root preform being done to certain processing, and assembled, and then the preform after assembling is carried out to melt drawing, thus the integrated making of optical-fiber laser bundling device completed.
The preform diameter is generally several millimeters to tens millimeters, and referring to Fig. 1, a is partly the core of preform, and it becomes the fibre core of optical fiber after drawing.B is partly the covering of preform, and it becomes the covering of optical fiber after drawing.The making step of optical-fiber laser bundling device (n * 1) is as follows: choose n root preform, and the b to every preform one end partly carries out the milled processed of certain-length, make the end face of prefabricated rods become fan-shaped that interior angle is (360/n) °, and in the process of grinding, need to guarantee the integrality of optical fiber preform core, the preform after then the n root being processed is assembled into one.Finally again the n root preform assembled is carried out to melt drawing, thus the disposable making that completes the optical-fiber laser bundling device.
Specific embodiments of the invention one: 3 * 1 optical-fiber laser bundling devices of take are example, making to the optical-fiber laser bundling device is described further: at first choose 3 preforms, and the b of every preform one end is partly carried out to the milled processed of certain-length.Optical fiber prefabricating plane rod end after grinding is that interior angle is 120 ° fan-shaped, referring to Fig. 2; Then 3 preforms that process are fitted together, form the structure as shown in Fig. 3 (a), its end face is referring to 3 (b).Whole assembly is carried out to melt drawing, thereby produce integrated 3 * 1 optical-fiber laser bundling devices, referring to Fig. 4.
When the preform that needs beam combination is more, comparatively approaching for the fibre core that guarantees the rear optical fiber of drawing, the segment angle of the preform after grinding can be ground to elimination.Specific embodiments of the invention two: the example that is made as with 12 * 1 optical-fiber laser bundling devices describes: 12 preform one ends are ground to form respectively to the sector structure as shown in Fig. 5 (a), and requiring the fan-shaped interior angle of end face is 30 °.Again segment angle is removed, become as shown in Fig. 5 (b).12 preforms that then will process fit together, and as shown in Fig. 6 (a), its assembling end face is as shown in Fig. 6 (b).Finally the prefabricated rods assembled is carried out to 12 * 1 optical-fiber laser bundling devices of being integral of melt drawing.
Claims (3)
1. optical-fiber laser bundling device method for making is characterized in that: said method comprising the steps of:
1) choose n root preform;
2) end of every preform ground;
3) by step 2) in the end of grinding of n root preform after grinding combine;
5) the n root preform of combining is carried out to melt drawing.
2. optical-fiber laser bundling device method for making according to claim 1, it is characterized in that: concrete steps described step 2) are: every preform one end is carried out to the milled processed of certain-length, make the grinding rear end face of prefabricated rods become fan-shaped that interior angle is (360/n) °.
3. optical-fiber laser bundling device method for making according to claim 2, is characterized in that: described step 3) also comprise afterwards step 4) elimination is ground to by the fan-shaped drift angle place of preform one end after grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310410425 CN103472535A (en) | 2013-09-10 | 2013-09-10 | Manufacturing method of fiber laser combiner |
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|---|---|---|---|
| CN 201310410425 CN103472535A (en) | 2013-09-10 | 2013-09-10 | Manufacturing method of fiber laser combiner |
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| CN103472535A true CN103472535A (en) | 2013-12-25 |
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| CN 201310410425 Pending CN103472535A (en) | 2013-09-10 | 2013-09-10 | Manufacturing method of fiber laser combiner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061801A (en) * | 2018-10-12 | 2018-12-21 | 广东国志激光技术有限公司 | A kind of high power signals bundling device and preparation method thereof |
| 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 |
-
2013
- 2013-09-10 CN CN 201310410425 patent/CN103472535A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061801A (en) * | 2018-10-12 | 2018-12-21 | 广东国志激光技术有限公司 | A kind of high power signals bundling device and preparation method thereof |
| WO2020073348A1 (en) * | 2018-10-12 | 2020-04-16 | 广东国志激光技术有限公司 | Beam combiner for high-power signal, and manufacturing method for same |
| US11372162B2 (en) | 2018-10-12 | 2022-06-28 | Gz Photonics Co., Ltd. | Beam combiner for high-power signal, and manufacturing method for same |
| CN109061801B (en) * | 2018-10-12 | 2024-02-20 | 广东国志激光技术有限公司 | High-power signal beam combiner and manufacturing method thereof |
| 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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Application publication date: 20131225 |