CN208571214U - A kind of optical fiber laser optical fiber dish structure - Google Patents
A kind of optical fiber laser optical fiber dish structure Download PDFInfo
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- CN208571214U CN208571214U CN201821328803.XU CN201821328803U CN208571214U CN 208571214 U CN208571214 U CN 208571214U CN 201821328803 U CN201821328803 U CN 201821328803U CN 208571214 U CN208571214 U CN 208571214U
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Abstract
The utility model provides a kind of optical fiber laser optical fiber dish structure, it is a kind of cap shaped optical fiber dish structure and cooling optical fiber groove shape for passing through design in multikilowatt single mode fiber laser system and passing energy with gain fibre, realizes while carrying out to biography energy and gain fibre the function of cooling and modeling.While can carrying out effective thermal control management in the above single mode fiber laser system of multikilowatt, inhibition nonlinear effect and rejecting, which pass, to guarantee the fiber ring laser system single mode operation under high power with the higher order mode of generation and propagation in gain fibre.
Description
Technical field
The present invention relates to technical field of optical fiber and laser technology field, be related specifically to high-power single mode fiber laser and
Amplifier region.
Background technique
High-capacity optical fiber laser beam quality, volume, weight, efficiency, in terms of all have clear superiority, it is existing
Be widely used to optical-fibre communications, laser space telecommunication, industrial shipbuilding, automobile manufacture, laser cutting, metal welding,
Civilian industries and the military fields such as military and national defense safety, biologic medical, large foundation construction, are referred to as " third generation laser
Device ".Especially in field of laser processing, is more and more paid attention to and studied.And high-capacity optical fiber laser is gradually
Replace traditional carbon dioxide laser and solid state laser, becomes the most crucial component of laser process equipment.Optical fiber laser
It can be widely applied to the cutting and welding of the field of metal processing, (such as aerospace, high-speed rail, shipbuilding, automobile element part
Deng), it is with its superior beam quality, it can be achieved that fine structure and high speed processing, can be processed high reflection or high conduction coefficient material
Expect the long-range processing, it can be achieved that under long-focus, cuts field in metal plate at present, optical-fiber laser cutting equipment has gradually replaced biography
The machining equipments such as the metal plate cutting equipment of system and punching machine.The first big laser process equipment quotient big nation, China laser is also 2015
Announce that preparing investment is used for high power semiconductor device, special optical fiber and optical fiber laser Industrialization Projects and height more than 3,000,000,000 year
Power laser cuts welding system and robot automation equips Industrialization Projects.High power optical fibre laser more than multikilowatt
In device system, optical fiber laser has 5,000,000,000 dollars of market potential, and will gradually replace CO2 laser, especially in metal
Cutting field, optical fiber laser will replace comprehensively CO2 laser between 3~5 years.
Since First kilowatt optical fiber laser is since Southampton, Britain laboratory is born, single-core fiber swashs over 10 years
The output power of light device constantly rises, and the peak power output of present single single mode fiber laser alreadys exceed 10KW, by
IPG company keeps.SPI company, Britain, the NLIGHT company in the U.S. and the ROFIN company of Germany also have respective kilowatt respectively
The fibre laser product of the single single mode of grade.Although the high-capacity optical fiber laser starting in China is a little later, develop also rapidly.
Currently, the sharp section in Wuhan, Shandong sea Fu Guangzi and Shenzhen wound is prosperous all has the ability to release multikilowatt, beam quality M2 < 1.3 it is single
Single mode fiber laser complete machine.Industrial optical fiber laser field more than multikilowatt, current market still main quilt
The IPG Photonics company in the U.S. is leading, especially the above single mode fiber laser series of multikilowatt (M2 <
1.2), several companies are essentially all to be no more than 1500W in the same horizontal magnitude.High power single mode fiber laser
A major reason can not continuing to lift up of power exactly when output power is further promoted, used biography energy and gain
The core diameter of optical fiber can increase with it (because heat dissipation problem when high power operation), and the increase of fibre core diameter can mention
The normalized frequency V of high optical fiber, and then it is straight to increase mode quantity existing for institute's energy, i.e. fibre core in large mode field diameter optical fiber fibre core
The increase of diameter, which will lead to, generates more higher order modes, is unable to maintain that single mode is run.On the other hand, keeping core diameter constant
In the case where, increase output power, heat dissipation problem and nonlinear effect can be generated.Therefore, currently, the above single mode optical fiber of multikilowatt
Laser guarantees the problem of single mode operation while just facing further hoisting power.
Utility model content
In order to solve after reaching multikilowatt or more with optical fiber laser power, it not can guarantee what single mode ran and generated
Heat dissipation problem and nonlinear effect, the present utility model propose a kind of fiber reel for multikilowatt single mode fiber laser
Structure.It is that a kind of passed in multikilowatt single mode fiber laser system by design can be with the cap shaped fiber reel of gain fibre
Structure and cooling optical fiber groove shape, realize the function of carrying out cooling and modeling to biography energy and gain fibre simultaneously.It can be with
While carrying out effective thermal control management in the above single mode fiber laser system of multikilowatt, inhibit nonlinear effect and reject to pass
It can guarantee the fiber ring laser system single mode operation under high power with the higher order mode for generating and propagating in gain fibre.
The present invention provides a kind of optical fiber laser optical fiber dish structure, can be with gain fibre, water-cooled plate, chassis, hourglass by passing
Type fiber reel, liquid metal for conducting heat cream, pressure cover plate are constituted, and a radius can be coiled in by gradually becoming smaller greatly with gain fibre by passing
Chassis and hourglass shape fiber reel on, chassis and hourglass shape optical fiber pan bottom are integrated with the water-cooled plate for the temperature control that freezes, optical fiber
The groove of disk is bullet shape, and the underfill liquid metal for conducting heat cream of groove is passed to be placed in groove with gain fibre and be led
In hot cream, the pressure cover plate with elasticity that the upper surface of energy and gain fibre are adjustable pressures is passed.
Above-mentioned optical fiber laser optical fiber dish structure, the making material of used fiber reel are that can be processed into leading for fiber reel
Hot metallic material, fiber reel are the geometrical bodies of coil radius consecutive variations.The making material of used fiber reel is selected from aluminium
Or copper, optical fiber disk shape are selected from hourglass shape, cone or triangle.
Above-mentioned optical fiber laser optical fiber dish structure, the plough groove type bullet shape of used fiber reel, is also possible to U
Type, V-type, W-shape.Maximum gauge >=30cm of fiber reel, minimum optical fiber disk diameter≤6cm.
Above-mentioned optical fiber laser optical fiber dish structure, used Heat Conduction Material are that liquid metal for conducting heat cream, liquid metal are led
Backing or indium foil.
Above-mentioned optical fiber laser optical fiber dish structure, the pressure cover plate of used band elasticity are to can control elasticity and pressure
The sheet metal of size.The pressure cover plate of used band elasticity is selected from copper sheet or aluminium flake equipped with spring.
Compared with existing patent and technology, the invention proposes one kind specifically for the above single mode full optical fiber laser of multikilowatt
In the production of device and amplifier, guarantees to inhibit nonlinear effect while single mode operation, promotes the optical fiber dish structure of output power,
This is simple for structure, low in cost.
Detailed description of the invention
Fig. 1 can be used for the optical fiber dish structure of multikilowatt single mode fiber laser
The groove structure figure of Fig. 2 fiber reel
The structure chart of Fig. 3 elastic pressure cover plate
1. water-cooled plate
2. passing energy and gain fibre
3. the fiber reel of hourglass shape
4. groove
5. pressure cover plate
6. water inlet
7. water outlet
8. copper sheet
9. spring
10. aluminium flake
11. threaded hole
Specific embodiment
The present invention is further explained in the light of specific embodiments.
If Fig. 1 is the fiber reel structure chart that can be used for multikilowatt single mode fiber laser, the structure propose will pass can and
Gain fibre 2 is coiled in a radius by the fiber reel 3 of big gradually smaller chassis and hourglass shape, whole section of biography can and increase
The coil radius of beneficial optical fiber 2, which can be gradually reduced, to be gradually increased.Optical fiber pan bottom is integrated with the water-cooled plate 1 for the temperature control that freezes, water
The water inlet 6 and water outlet 7 of cold plate are located at the two sides of water-cooled plate, consistent with the direction of optical fiber disengaging.The groove 4 of fiber reel
For bullet shape, as shown in figure 3, the bottom of groove it is fillable can the excellent liquid metal for conducting heat piece cream of heating conduction, then
To pass can be put into groove 4 with gain fibre 2, be placed in heat-conducting cream.Pass the band that the upper surface of energy and gain fibre 2 are adjustable pressures
The pressure cover plate 5 of elasticity, as shown in figure 3, pressure cover plate 5 is the copper sheet 8 by upper surface, the aluminium of intermediate spring 9 and lower surface
Piece 10 forms.8 lower surface of copper sheet of two sides with threaded hole 11 is equipped with a spring 9, and the other end of spring 9 is connected to a size
With the matched aluminium flake 10 of groove, the groove 4 to match with biography energy and 2 diameter of gain fibre is carved in 10 lower surface of aluminium flake.Pressure cover
Piece 5 can be tightened up a screw by threaded hole 11 and be fixed in the surface of fiber reel 3, by the elastic realization of adjusting screw to biography energy
It is adjusted with the pressure in 2 whole length section of gain fibre.
Therefore, by adjusting the water temperature of the water inlet 6 of water-cooled plate and the pressure of pressure cover plate 5, energy can be passed with real-time control
With the heat dissipation capacity of gain fibre 2, temperature height and stress intensity realize the nonlinear effect inhibited under high power conditions.In addition,
By big gradually smaller chassis and hourglass shape fiber reel 3 possessed by fiber reel 3, can be rejected by the change of bending radius high
Issuable higher order mode under power guarantees under the above output power of multikilowatt that the single mode of optical fiber laser is run.
Claims (6)
1. a kind of optical fiber laser optical fiber dish structure, which is characterized in that can be with gain fibre, water-cooled plate, chassis, hourglass shape by passing
Fiber reel, liquid metal for conducting heat cream, pressure cover plate are constituted, and a radius can be coiled in by big gradually smaller with gain fibre by passing
On chassis and hourglass shape fiber reel, chassis and hourglass shape optical fiber pan bottom are integrated with the water-cooled plate for the temperature control that freezes, fiber reel
Groove be bullet shape, the underfill liquid metal for conducting heat cream of groove, pass can and gain fibre be placed in it is thermally conductive in groove
In cream, the pressure cover plate with elasticity that the upper surface of energy and gain fibre are adjustable pressures is passed.
2. a kind of optical fiber laser optical fiber dish structure according to claim 1, it is characterised in that: used fiber reel
Making material is the thermal conductive metallic material that can be processed into fiber reel, and fiber reel is the geometrical body of coil radius consecutive variations.
3. a kind of optical fiber laser optical fiber dish structure according to claim 1, it is characterised in that: used fiber reel
Making material is selected from aluminium or copper, and optical fiber disk shape is selected from hourglass shape, cone or triangle.
4. according to a kind of optical fiber laser optical fiber dish structure described in claim 1, it is characterised in that: the ditch of used fiber reel
Slot is bullet shape, U-shaped, V-arrangement or W-shape；Maximum gauge >=30cm of fiber reel, minimum optical fiber disk diameter≤6cm.
5. according to a kind of optical fiber laser optical fiber dish structure described in claim 1, it is characterised in that: used Heat Conduction Material is
Liquid metal for conducting heat cream, liquid metal for conducting heat piece or indium foil.
6. according to a kind of optical fiber laser optical fiber dish structure described in claim 1, it is characterised in that: the pressure of used band elasticity
Power cover plate is selected from copper sheet or aluminium flake equipped with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328803.XU CN208571214U (en) | 2018-08-15 | 2018-08-15 | A kind of optical fiber laser optical fiber dish structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328803.XU CN208571214U (en) | 2018-08-15 | 2018-08-15 | A kind of optical fiber laser optical fiber dish structure |
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| CN208571214U true CN208571214U (en) | 2019-03-01 |
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| CN201821328803.XU Active CN208571214U (en) | 2018-08-15 | 2018-08-15 | A kind of optical fiber laser optical fiber dish structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797735A (en) * | 2019-10-16 | 2020-02-14 | 佛山市宝光新宇实业有限公司 | Optical fiber laser and cooling device thereof |
| CN110797736A (en) * | 2019-10-16 | 2020-02-14 | 佛山市宝光新宇实业有限公司 | Optical fiber laser and cooling device thereof |
| CN112038876A (en) * | 2020-11-04 | 2020-12-04 | 中国工程物理研究院激光聚变研究中心 | Heat abstractor and fiber laser |
| CN113540951A (en) * | 2021-07-12 | 2021-10-22 | 桂林电子科技大学 | Ultra-wideband light source based on bismuth-erbium co-doped optical fiber |
-
2018
- 2018-08-15 CN CN201821328803.XU patent/CN208571214U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797735A (en) * | 2019-10-16 | 2020-02-14 | 佛山市宝光新宇实业有限公司 | Optical fiber laser and cooling device thereof |
| CN110797736A (en) * | 2019-10-16 | 2020-02-14 | 佛山市宝光新宇实业有限公司 | Optical fiber laser and cooling device thereof |
| CN112038876A (en) * | 2020-11-04 | 2020-12-04 | 中国工程物理研究院激光聚变研究中心 | Heat abstractor and fiber laser |
| CN113540951A (en) * | 2021-07-12 | 2021-10-22 | 桂林电子科技大学 | Ultra-wideband light source based on bismuth-erbium co-doped optical fiber |
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Effective date of registration: 20200527 Address after: 518105 607, building a, No.9 Furong Road, Tantou community, Songgang street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Gongda laser Co., Ltd Address before: Futian District Xiangmi Lake street in Shenzhen city of Guangdong province Zhuzilin 518040 Qiushi East Building 810 Patentee before: SHENZHEN FANYUE PHOTOELECTRIC Co.,Ltd. |