CN109066277A - A kind of high-capacity optical fiber laser gain fibre radiator - Google Patents
A kind of high-capacity optical fiber laser gain fibre radiator Download PDFInfo
- Publication number
- CN109066277A CN109066277A CN201811030667.0A CN201811030667A CN109066277A CN 109066277 A CN109066277 A CN 109066277A CN 201811030667 A CN201811030667 A CN 201811030667A CN 109066277 A CN109066277 A CN 109066277A
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- China
- Prior art keywords
- gain fibre
- heat sink
- optical fiber
- fiber laser
- capacity optical
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0405—Conductive cooling, e.g. by heat sinks or thermo-electric elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/042—Arrangements for thermal management for solid state lasers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06704—Housings; Packages
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Lasers (AREA)
Abstract
The invention discloses a kind of high-capacity optical fiber laser gain fibre radiators, the rounded structure of whole device, heat sink heat sink with cylindrical surface including cup dolly, the outer diameter of cylindrical body is slightly less than cup dolly and two outer diameters semicircular structure package module identical with cup dolly.Apparatus of the present invention production is simple, it is at low cost, strong operability, it is good to the heat dissipation effect of gain fibre, and due to special packaging technology, the coiling of gain fibre has very big flexibility, and gain fibre is coiled in the beam quality that large mode field optical fiber output laser is effectively controlled on the same cylindrical surface by stress；The special package device of gain fibre disk also ensures the heat-conducting effect long-term reliability of heat-conducting silicone grease, has greatly improved to the system stability and reliability of high-power fiber amplifier.
Description
Technical field
The present invention relates to a kind of gain fibre radiators more particularly to a kind of high-capacity optical fiber laser gain fibre to dissipate
Thermal.
Background technique
In recent years, the application of optical fiber laser is carved to weld to the cutting of high-power heavy metal from the mark of low-power and be sent out
Exhibition, the application field in face of high-capacity optical fiber laser constantly extend, and the research of high-capacity optical fiber laser causes bigger
Concern.Since optical fiber has biggish cross-sectional area, optical fiber laser has preferably heat dissipation compared to conventional solid laser
Characteristic generally uses optical fiber laser especially in superpower laser using upper.Optical fiber laser be mostly with mix rare earth from
For the optical fiber of son as gain media, gain fibre absorbs a large amount of pump lights, and pump light is converted to signal light, therefore gain light
Power density is higher in fibre, has biggish thermal accumlation in optical fiber surface, especially in the Dian Chu that fuses into of gain fibre, power density
Increase severely suddenly, temperature also increases severely therewith, it is therefore desirable to which the temperature at the fusing point is handled emphatically.
There are two types of common gain fibre heat dissipating methods, the first be gain fibre is coiled in cylindrical surface it is heat sink on,
Second is that gain fibre is coiled in Planar heat sink.Gain fibre is coiled in the bending for making gain fibre in Planar heat sink
Radius is different, is unable to control the higher order mode of high power large mode field optical fiber generation, and this coiled fashion will will lead to gain fibre
Juxtaposition is unfavorable for the heat dissipation and system stability of gain fibre.Some special construction designs based on plane coiled fashion,
Gain fibre coil radius can be made identical, and do not intersect, but the complex structural designs, poor operability, and occupied space
Greatly, it is unfavorable for the integrated of system.Therefore, it in most cases radiates using cylindrical plane is heat sink to gain fibre.
Gain fibre, which is coiled in cylindrical heat sink upper heat dissipation, also different methods, but what is reported at present is low function mostly
Coiling heat dissipating method in the case of rate, including with double-sided adhesive by gain fibre be sticked to cylindrical it is heat sink on, or on cylindrical surface
Upper quarter helicla flute etc., these methods are complicated for operation, and are not suitable for heat dissipation and the output mode of high power large mode field gain fibre
Control.In view of the nonlinear effect of amplifier module in high-capacity optical fiber laser, amplifier module generallys use large mode field
Optical fiber, the welding between large mode field gain fibre and energy-transmission optic fibre usually have that melting temperature is excessively high and high-order mode operation problem,
It is vital to solve the problems, such as that this has the output power, beam quality and the system stability that promote high-capacity optical fiber laser
Effect.
Summary of the invention
Goal of the invention: in view of the above problems, the present invention proposes a kind of high-capacity optical fiber laser gain fibre radiator,
It is good to the heat dissipation effect of gain fibre.
Technical solution: to achieve the purpose of the present invention, the technical scheme adopted by the invention is that: a kind of high-power fiber is sharp
Light device gain fibre radiator, including cup dolly is heat sink and cylindrical surface is heat sink, gain fibre be coiled in cylindrical surface it is heat sink on,
After energy-transmission optic fibre and output energy-transmission optic fibre and gain fibre welding will be inputted, the coated with thermally conductive on the cylindrical surface that disk has gain fibre
Silicone grease.
It further, further include packaging system, the packaging system is two semicircular structures.
Further, it is hollow cylinder that the cylindrical surface is heat sink, and top is equipped with threaded hole；Described two semicircular structures
Packaging system outer diameter it is identical as the heat sink outer diameter of cup dolly, the top of semicircular structure packaging system is equipped with arcuate socket, can lead to
It crosses screw and semicircular structure packaging system is fixed on the heat sink top in cylindrical surface.
Further, the heat sink outside of cup dolly is equipped with arcuate socket, and center is equipped with round hole, can be by screw by circular base
Seat is heat sink to be fixed in system backplane.
Further, the cylindrical surface it is heat sink with cup dolly is heat sink is integrated, it is heat sink that outer diameter is slightly less than cup dolly.
Further, the packaging system of described two semicircular structures respectively includes four U-shaped holes, is located at semicolumn
Two seamed edge upper and lower positions form the hole location of two approximate ellipses after the completion of encapsulation.
Further, input may be at the ipsilateral of semicircle encapsulating structure with output energy-transmission optic fibre, also may be at half
The two sides of circular package structure.
Further, selected heat-conducting silicone grease is the good solid-liquid admixture colloid of heating conduction.
Further, input fusion point is coiled in the heat sink downside in cylindrical surface, and it is heat sink that output fusion point is coiled in cylindrical surface
Upside.
The utility model has the advantages that structure of the invention production is simple, at low cost, strong operability is good to the heat dissipation effect of gain fibre
It is good, and due to special packaging technology, the coiling of gain fibre has very big flexibility, is coiled in gain fibre by stress
The beam quality of large mode field optical fiber output laser is effectively controlled on the same cylindrical surface；The special package device of gain fibre disk
The heat-conducting effect long-term reliability for also ensuring heat-conducting silicone grease has the system stability and reliability of high-power fiber amplifier
Very big promotion.
Detailed description of the invention
Fig. 1 is the top view of whole device；
Fig. 2 is the front view of gain fibre disk chassis and disk body；
Fig. 3 is the front view of gain fibre packaging system.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawings and examples.
As shown in Figure 1, high-capacity optical fiber laser gain fibre radiator of the invention, should include that cup dolly is heat sink
1, cylindrical surface is heat sink 2, packaging system 3, energy-transmission optic fibre 4, gain fibre 5.
By gain fibre be coiled in the outer diameter with cup dolly be slightly less than cylindrical seat cylindrical surface it is heat sink on, this circular base
Seat is heat sink, and inside has fixed function；After the completion of gain fibre and energy-transmission optic fibre welding, there is the cylindrical surface of gain fibre in disk
On coat the heat-conducting silicone grease with high thermal conductivity effect, allow gain fibre and heat-conducting silicone grease, entire heat sink device is intact contacts, this
The fusion point heat of sample, gain fibre and gain fibre and energy-transmission optic fibre can be uniformly scattered on heat sink, by it is heat sink will be hot
Amount is scattered in air or in system backplane, reaches good heat dissipation effect.Energy-transmission optic fibre is the matched optical fiber of amplifier system, is increased
The optical fiber parameter of beneficial optical fiber is matched with the energy-transmission optic fibre being connected.
When gain fibre disk in view of coating heat-conducting silicone grease is in naked state, long-play or storage, thermal conductive silicon
Rouge easily air-dries, and loses heating conduction, and the gain fibre disk for coating heat-conducting silicone grease is exposed easily contaminated, increases gain fibre
Hot spot is unfavorable for the long-term reliability of radiator, therefore, is sealed entire gain fibre disk with two semicircular structures
Dress, ensure that heat-conducting silicone grease long-term validity and reliability.
It is round heat sink with arc fixing groove that gain fibre cup dolly is heat sink；It is heat sink with cup dolly that cylindrical surface is heat sink
It is structure as a whole, as good heat sink with certain thickness heat dissipation, outer diameter is slightly less than pedestal outer diameter, increases for cylindrical surface is heat sink disk
Beneficial optical fiber packaging system is two semicircular structures, and the outer diameter of semicircular structure is identical as gain fibre pedestal；Gain fibre envelope
The top of assembling device is equipped with the mounting groove of arc, is fixed by corresponding with the threaded hole at the heat sink top in ring-shaped cylinder face.
Three sections of arcuate sockets are equipped with inside cup dolly, round disk center is equipped with a round hole, can be flexible with screw
The cup dolly of rotation is fixed on the fixing screwed hole in system backplane；Cylindrical surface is integrated with cup dolly, and outer diameter is slightly less than
Cup dolly, by gain fibre apply certain stress be coiled in cylindrical surface it is heat sink on, make itself and the heat sink close contact in cylindrical surface, will
Heat-conducting silicone grease is uniformly coated on gain fibre；Threaded hole is equipped at the top of the hollow cylinder of cylindrical surface composition；Two semicircles
The packaging system outer diameter of structure is identical as cylindrical base outer diameter, the top of semicircular structure packaging system be equipped with two sections it is hollow
Semicircular structure packaging system is fixed at the top of the hollow cylinder of cylindrical surface composition by arcuate socket with screw.
As shown in figure 3, the packaging system of two semicircular structures includes four U-shaped holes, respectively at two of semicolumn
Each one of seamed edge upper and lower position, forms the hole location of two approximate ellipses, the input as the energy-transmission optic fibre connecting with gain fibre
Or output end port 32,33；Gain fibre disk center is sky.
As shown in Figure 1, gain fibre disk is fixed on the screw thread in system backplane by the arc groove 11 on cup dolly
On hole 101,102,103,104.The cylindrical gain fibre disk disk body that disk has gain fibre coated to heating conduction is good to lead
Hot silicone grease；Two semicircular structures 3 are passed through into the threaded hole that the arc groove 31 designed thereon is fixed on heat sink 2 top in cylindrical surface
201, on 202,203,204.
It is coiled on cylindrical surface heat sink 2 as shown in Fig. 2, gain fibre 5 is applied certain stress, makes gain fibre and circle
Cylinder disk body is in close contact, and the good gain fibre of disk is fixed on cylindrical gain fibre disk disk body with copper adhesive tape；It will input
Energy-transmission optic fibre and output energy-transmission optic fibre and gain fibre welding, input fusion point 61 is coiled in the heat sink downside of cylindrical, defeated
Fusion point 62 is coiled in the heat sink upside of cylindrical out.
Input energy-transmission optic fibre 41 may be at the ipsilateral of semicircle encapsulating structure with output energy-transmission optic fibre 42, can also be in half
The two sides of circular package structure can be adjusted with the coil direction of optical fiber and the length-flexible of energy-transmission optic fibre.
The coiling of gain fibre 5 should be before gain fibre and energy-transmission optic fibre welding, reply gain light cylindrical surface heat before coiling
Heavy 2 and gain fibre 5 cleaned with alcohol, avoid gain fibre from polluting；It should be noted that dynamics when coiling, avoid the damage of gain fibre
Wound.Direction, the position of gain fibre disk can flexibly be rotated with energy-transmission optic fibre length and coil direction, guarantee input and it is defeated
The orientation consistency of energy-transmission optic fibre out, meanwhile, input and output energy-transmission optic fibre should not have stress.
Heat-conducting silicone grease is the good solid-liquid admixture colloid of heating conduction, which can be dissolved in alcohol, therefore
The gain fibre for being painted with heat-conducting silicone grease can be recycled, convenient for the maintenance of system.
The present invention is suitable for high-power optical fiber laser gain fibre radiator, can be with the variation of fiber lengths
Flexibly adjustment direction and position, it is easy to operate, and can provide the identical coil diameter of gain fibre, effectively control large mode field
The higher order mode excited in optical fiber optimizes the beam quality of output laser；Semicircle encapsulating structure is flexibly ingenious, both ensure that
The longtime running reliability of gain fibre, meanwhile, whole device is compact-sized, at low cost.
Claims (9)
1. a kind of high-capacity optical fiber laser gain fibre radiator, which is characterized in that including cup dolly is heat sink and cylinder
Face is heat sink, gain fibre be coiled in cylindrical surface it is heat sink on, will input energy-transmission optic fibre and output energy-transmission optic fibre and gain fibre welding
Afterwards, the coated with thermally conductive silicone grease on the cylindrical surface that disk has gain fibre.
2. high-capacity optical fiber laser gain fibre radiator according to claim 1, which is characterized in that further include envelope
Assembling device, the packaging system are two semicircular structures.
3. high-capacity optical fiber laser gain fibre radiator according to claim 2, which is characterized in that the cylinder
It is hollow cylinder that face is heat sink, and top is equipped with threaded hole；
The packaging system outer diameter of described two semicircular structures is identical as the heat sink outer diameter of cup dolly, semicircular structure packaging system
Top be equipped with arcuate socket, semicircular structure packaging system can be fixed on the heat sink top in cylindrical surface by screw.
4. high-capacity optical fiber laser gain fibre radiator according to claim 1, which is characterized in that cup dolly
Heat sink outside is equipped with arcuate socket, and center is equipped with round hole, can be fixed in system backplane by screw by cup dolly is heat sink.
5. high-capacity optical fiber laser gain fibre radiator according to claim 1, which is characterized in that the cylinder
Face is heat sink and cup dolly is heat sink is integrated, and it is heat sink that outer diameter is slightly less than cup dolly.
6. high-capacity optical fiber laser gain fibre radiator according to claim 3, which is characterized in that described two
The packaging system of semicircular structure respectively includes four U-shaped holes, is located at two seamed edge upper and lower positions of semicolumn, and encapsulation is completed
The hole location of two approximate ellipses is formed afterwards.
7. high-capacity optical fiber laser gain fibre radiator according to claim 6, which is characterized in that input with it is defeated
Energy-transmission optic fibre may be at the ipsilateral of semicircle encapsulating structure out, also may be at the two sides of semicircle encapsulating structure.
8. high-capacity optical fiber laser gain fibre radiator according to claim 1, which is characterized in that selected thermally conductive
Silicone grease is the good solid-liquid admixture colloid of heating conduction.
9. high-capacity optical fiber laser gain fibre radiator according to claim 1, which is characterized in that input welding
Point is coiled in the heat sink downside in cylindrical surface, and output fusion point is coiled in the heat sink upside in cylindrical surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030667.0A CN109066277A (en) | 2018-09-05 | 2018-09-05 | A kind of high-capacity optical fiber laser gain fibre radiator |
| PCT/CN2019/096322 WO2020048239A1 (en) | 2018-09-05 | 2019-07-17 | High-power optical fiber laser gain optical fiber heat-dissipating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030667.0A CN109066277A (en) | 2018-09-05 | 2018-09-05 | A kind of high-capacity optical fiber laser gain fibre radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109066277A true CN109066277A (en) | 2018-12-21 |
Family
ID=64758424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811030667.0A Pending CN109066277A (en) | 2018-09-05 | 2018-09-05 | A kind of high-capacity optical fiber laser gain fibre radiator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109066277A (en) |
| WO (1) | WO2020048239A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020048239A1 (en) * | 2018-09-05 | 2020-03-12 | 南京先进激光技术研究院 | High-power optical fiber laser gain optical fiber heat-dissipating device |
| CN112490831A (en) * | 2020-11-20 | 2021-03-12 | 北方激光研究院有限公司 | Optical fiber stress long-term maintaining device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738691A (en) * | 2012-06-29 | 2012-10-17 | 西北大学 | All-fiber 938nm semiconductor refrigeration fiber laser |
| CN102798939A (en) * | 2011-05-26 | 2012-11-28 | 欧姆龙株式会社 | Fiber holder and fiber laser apparatus |
| CN102891423A (en) * | 2012-09-25 | 2013-01-23 | 中国科学院半导体研究所 | Integrated optical fiber laser |
| CN105826797A (en) * | 2016-05-16 | 2016-08-03 | 南京先进激光技术研究院 | Optical fiber heat radiator and laser |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9293888B2 (en) * | 2013-10-30 | 2016-03-22 | Raytheon Company | Method and apparatus for high-power raman beam-combining in a multimode optical fiber |
| CN208690712U (en) * | 2018-09-05 | 2019-04-02 | 南京先进激光技术研究院 | A kind of high-capacity optical fiber laser gain fibre radiator |
| CN109066277A (en) * | 2018-09-05 | 2018-12-21 | 南京先进激光技术研究院 | A kind of high-capacity optical fiber laser gain fibre radiator |
-
2018
- 2018-09-05 CN CN201811030667.0A patent/CN109066277A/en active Pending
-
2019
- 2019-07-17 WO PCT/CN2019/096322 patent/WO2020048239A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798939A (en) * | 2011-05-26 | 2012-11-28 | 欧姆龙株式会社 | Fiber holder and fiber laser apparatus |
| CN102738691A (en) * | 2012-06-29 | 2012-10-17 | 西北大学 | All-fiber 938nm semiconductor refrigeration fiber laser |
| CN102891423A (en) * | 2012-09-25 | 2013-01-23 | 中国科学院半导体研究所 | Integrated optical fiber laser |
| CN105826797A (en) * | 2016-05-16 | 2016-08-03 | 南京先进激光技术研究院 | Optical fiber heat radiator and laser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020048239A1 (en) * | 2018-09-05 | 2020-03-12 | 南京先进激光技术研究院 | High-power optical fiber laser gain optical fiber heat-dissipating device |
| CN112490831A (en) * | 2020-11-20 | 2021-03-12 | 北方激光研究院有限公司 | Optical fiber stress long-term maintaining device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020048239A1 (en) | 2020-03-12 |
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Application publication date: 20181221 |