CN104297841A - Double-cladding fiber cladding power stripper - Google Patents
Double-cladding fiber cladding power stripper Download PDFInfo
- Publication number
- CN104297841A CN104297841A CN201410612090.XA CN201410612090A CN104297841A CN 104297841 A CN104297841 A CN 104297841A CN 201410612090 A CN201410612090 A CN 201410612090A CN 104297841 A CN104297841 A CN 104297841A
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- China
- Prior art keywords
- refractive index
- cladding
- optical fiber
- heat sink
- fiber
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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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4266—Thermal aspects, temperature control or temperature monitoring
- G02B6/4268—Cooling
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4266—Thermal aspects, temperature control or temperature monitoring
- G02B6/4268—Cooling
- G02B6/4269—Cooling with heat sinks or radiation fins
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The invention provides a double-cladding fiber cladding power stripper which comprises a double-cladding fiber, a refractive index coating layer, a rough surface absorbing layer, a heat sink and water cooling channels. The double-cladding fiber with no outer cladding is coated with the coating layer which is used as the outer cladding of the double-cladding fiber. The refractive index of the coating layer is continuously and progressively increased or progressively increased stepwise along the fiber. Stripped light is absorbed by the rough surface absorbing layer and converted into heat which is guided into the heat sink. Cold water circulating in the water cooling channels in the heat sink brings heat out of the heat sink. According to the double-cladding fiber cladding power stripper, residual light is evenly stripped along the fiber, the problem of local overheating in the stripper is solved, cladding power strippers are evenly distributed along the temperature of the fiber, and the power endurance capacity of the cladding power stripper is greatly improved.
Description
Technical field
The invention belongs to high power optical fibre laser technical field, be specifically related to a kind of double clad fiber cladding power stripper, for high-capacity optical fiber laser.
Background technology
The advantages such as the beam quality that high-capacity optical fiber laser and amplifier have is excellent, heat dissipation characteristics is good, be easy to miniaturization, operating cost is cheap, making it replace conventional high power laser instrument gradually becomes the new selection of the applications such as industrial processes one.Exporting to realize high power laser light, all adopting double-cladding doped fiber as Active Optical Fiber in Fiber laser and amplifier, and adopting cladding pumping mode that pumping laser is injected Active Optical Fiber.But the existence of spiral light causes the pump light in optical fiber can not be doped fibre core absorption completely and form residual light in double clad fiber cladding.If residual light is directly exported by optical fiber laser output end, extra heat deposition can be brought to equipment such as the beam shapings of optical fiber laser output end, even can the quality of deteriorated output facula.Therefore, the residual light in fibre cladding is peeled off very necessary at optical fiber laser output end.At present, make double clad fiber cladding power stripper be all based on high temperature resistant high index of refraction coating adhesive as guide-lighting and photothermal transformation layer, there is different power tolerances under different coating processes.Therefore, find a kind of can realization and spiral luminous power remaining in covering is had urgent realistic meaning along fiber axis to evenly peeling off in stripping area.
Summary of the invention
The object of the present invention is to provide a kind of power stripper leaked for fibre cladding light.Residual light is evenly peeled off along optical fiber by power stripper of the present invention, by regulate the refractive index that is coated on refractive index glue outside optical fiber along fiber axis to distribution stripper distribute along the homogeneous temperature of optical fiber, the power tolerance of raising covering power stripper.
Realizing technical scheme of the present invention is:
Double clad fiber cladding power stripper of the present invention, is characterized in, described power stripper comprises doubly clad optical fiber, refractive index coat, uneven surface absorption layer, heat sink, water-cooling channel.Its annexation is, described power stripper profile is cylindric, be provided with the doubly clad optical fiber of a removal surrounding layer in columned axial centre, the axial periphery of described doubly clad optical fiber is disposed with along the refractive index coat of optical fiber Axial changes, uneven surface absorption layer, heat sink.Described heat sink on be provided with axial U-type groove; Described refractive index coat, as the surrounding layer as doubly clad optical fiber, is converted to heat after the light absorption that doubly clad optical fiber leaks out by uneven surface absorption layer.Described uneven surface absorption layer is closely wrapped in outside refractive index coat, and heat sinkly to fit tightly with described.Described heat sink in be provided with water-cooling channel vertically.
Described water-cooling channel distributes at heat sink cross-sectional uniformity.
The refractive index of described refractive index coat increases continuously along optical fiber.
The refractive index of described refractive index coat replaces with and increases along optical fiber ladder.
Roughening process is carried out on described refractive index coat surface.
The initial refractive rate of described refractive index coat refractive index is identical with the initial cladding refractive index of doubly clad optical fiber.
The material that described covering power peels off uneven surface absorption layer in device is carbon dust.
In the present invention, preferred heat sink material is copper or aluminium.Preferred water-cooling channel directly punches and forms in thermosphere.
Residual light in covering can evenly direct in refractive index coat along optical fiber and be absorbed by uneven surface absorption layer by the present invention, realizes being uniformly distributed along fiber optic temperature in power stripper.Heat deposition in covering power stripper of the present invention is evenly distributed, and heat sink area becomes large, thus can be used in more high-power fiber ring laser system.
Accompanying drawing explanation
Fig. 1 is double clad fiber cladding power stripper diagrammatic cross-section of the present invention;
Fig. 2 is double clad fiber cladding power stripper cross sectional representation of the present invention;
Fig. 3 is that refractive index coat in the present invention increases progressively index distribution schematic diagram continuously along optical fiber;
To be the refractive index coat in the present invention increase progressively index distribution schematic diagram along the ladder of optical fiber to Fig. 4;
In figure, 1. heat sink 5. water-cooling channels of doubly clad optical fiber 2. refractive index coat 3. uneven surface absorption layer 4..
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described
Embodiment 1
Fig. 1 is double clad fiber cladding power stripper diagrammatic cross-section of the present invention, Fig. 2 is double clad fiber cladding power stripper cross sectional representation of the present invention, Fig. 3 is that refractive index coat in the present invention increases progressively index distribution schematic diagram continuously along optical fiber, and to be the refractive index coat in the present invention increase progressively index distribution schematic diagram along the ladder of optical fiber to Fig. 4.
In Fig. 1 ~ Fig. 2, double clad fiber cladding power stripper of the present invention, comprises doubly clad optical fiber 1, refractive index coat 2, uneven surface absorption layer 3, heat sink 4, water-cooling channel 5; Its annexation is, described power stripper profile is cylindric, be provided with the doubly clad optical fiber 1 of a removal surrounding layer in columned axial centre, the axial periphery of described doubly clad optical fiber 1 is disposed with refractive index coat 2, uneven surface absorption layer 3, heat sink 4; Described thermosphere 4 is provided with axial U-type groove; Described refractive index coat 2, as the surrounding layer as doubly clad optical fiber 1, is converted to heat after the light absorption that doubly clad optical fiber 1 leaks out by uneven surface absorption layer 3; Described uneven surface absorption layer 3 is closely wrapped in outside refractive index coat 2, and fits tightly with described heat sink 4; Water-cooling channel 5 is provided with vertically in described heat sink 4.
The material of described uneven surface absorption layer 3 is carbon dust.Described water-cooling channel is in heat sink 4 cross-sectional uniformity distributions.
The initial refractive rate of described refractive index coat 2 equals the initial index of refraction of doubly clad optical fiber 1.
Fig. 3 is that refractive index coat in the present invention increases progressively index distribution schematic diagram continuously along optical fiber; The refractive index of described refractive index coat 2 is along fiber axis to increasing progressively distribution continuously.
In the present embodiment, water-cooling channel is provided with four altogether, and water-cooling channel 5 is one of them.
Making programme of the present invention is: doubly clad optical fiber 1 is removed surrounding layer, carries out cleaning stand-by with high absolute alcohol to the doubly clad optical fiber 1 removing coating.Deployed refractive index glue is applied doubly clad optical fiber 1, form refractive index coat 2 refractive index increase gradually along optical fiber, its distribution is as shown in Figure 3.The initial refractive rate of refractive index coat 2 is identical with the cladding index of doubly clad optical fiber 1.After ultra-violet curing, refractive index coat 2 outside surface is carried out the U-type groove that then roughening process is placed in heat sink 4, and in U-type groove, fill the carbon powder material formation uneven surface absorption layer 3 with light intensity absorption efficiency and high heat conduction efficiency.Light in optical fiber uneven surface 3 by sorption enhanced for heat and be conducted in heat sink 4.The cold water passing into circulation in water-cooling channel 5, by the heat absorption in heat sink 4, ensures that the temperature of heat sink 4 remains on reduced levels.
Embodiment 2
The present embodiment is identical with the structure of embodiment 1, and difference is, refractive index coat increases progressively along the index step of optical fiber, as shown in Figure 4.
Above one provided by the present invention is described in detail for double clad fiber cladding power stripper and its implementation, apply specific embodiment herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications.To sum up, this description should not be construed as limitation of the present invention.
Claims (7)
1. a double clad fiber cladding power stripper, is characterized in that, described power stripper comprises doubly clad optical fiber (1), refractive index coat (2), uneven surface absorption layer (3), heat sink (4), water-cooling channel (5); Its annexation is, described power stripper profile is cylindric, be provided with the doubly clad optical fiber (1) of a removal surrounding layer in columned axial centre, the axial periphery of described doubly clad optical fiber (1) is disposed with refractive index coat (2), uneven surface absorption layer (3), heat sink (4); Described heat sink (4) are provided with axial U-type groove; Described refractive index coat (2) is as the surrounding layer as doubly clad optical fiber (1); Uneven surface absorption layer (3) is wrapped in refractive index coat (2) outward, and fits tightly with described heat sink (4); Water-cooling channel (5) is provided with vertically in described heat sink (4).
2. covering power stripper according to claim 1, is characterized in that, described water-cooling channel (5) distributes at heat sink (4) cross-sectional uniformity.
3. covering power stripper according to claim 1, is characterized in that, the refractive index of described refractive index coat (2) increases continuously along optical fiber.
4. covering power stripper according to claim 1, is characterized in that, the refractive index of described refractive index coat (2) replaces with and increases along optical fiber ladder.
5. covering power stripper according to claim 13, is characterized in that, roughening process is carried out on described refractive index coat (2) surface.
6. covering power stripper according to claim 1, is characterized in that, the initial refractive rate of described refractive index coat (2) refractive index is identical with the initial cladding refractive index of doubly clad optical fiber (1).
7. covering power stripper according to claim 1, is characterized in that, described uneven surface absorption layer (3) is carbon dust absorbing medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612090.XA CN104297841A (en) | 2014-11-05 | 2014-11-05 | Double-cladding fiber cladding power stripper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410612090.XA CN104297841A (en) | 2014-11-05 | 2014-11-05 | Double-cladding fiber cladding power stripper |
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| CN104297841A true CN104297841A (en) | 2015-01-21 |
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| CN201410612090.XA Pending CN104297841A (en) | 2014-11-05 | 2014-11-05 | Double-cladding fiber cladding power stripper |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852258A (en) * | 2015-06-12 | 2015-08-19 | 中国工程物理研究院总体工程研究所 | Kilowatt-level optical fiber cladding power stripper employing micro-channel water cooling |
| CN105048258A (en) * | 2015-05-27 | 2015-11-11 | 广东高聚激光有限公司 | Method and device for peeling light in optical fiber |
| CN105425336A (en) * | 2015-12-01 | 2016-03-23 | 中电科天之星激光技术（上海）有限公司 | Heat-radiation-material-utilization-based light filtering method for fiber cladding |
| CN105676348A (en) * | 2016-03-24 | 2016-06-15 | 芜湖安瑞激光科技有限公司 | Fiber cladding residual light all-wave detachment method and fiber cladding residual light all-wave detachment device |
| CN106019476A (en) * | 2016-07-14 | 2016-10-12 | 华中科技大学 | Optical fiber cladding optical power stripper and quartz casing thereof |
| CN107037538A (en) * | 2017-05-23 | 2017-08-11 | 广东工业大学 | A kind of fibre cladding power stripper and its manufacture method |
| CN107134706A (en) * | 2016-02-29 | 2017-09-05 | 深圳朗光科技有限公司 | A kind of fibre cladding residual light filters out structure and optical fiber laser |
| CN107290823A (en) * | 2016-04-01 | 2017-10-24 | 中国兵器装备研究院 | A kind of manufacture method of cladding light stripper |
| CN107861193A (en) * | 2017-11-07 | 2018-03-30 | 大族激光科技产业集团股份有限公司 | Optical-fiber bundling device and preparation method thereof, abatement optical fiber return reflective method and semiconductor laser |
| CN108513822A (en) * | 2018-03-21 | 2018-09-11 | 华南理工大学 | A kind of energy-conserving plant culturing rack |
| CN108565665A (en) * | 2018-03-23 | 2018-09-21 | 中国工程物理研究院激光聚变研究中心 | Cladding power stripper and optical fiber laser |
| US10120151B1 (en) * | 2015-03-06 | 2018-11-06 | Science Research Laboratory, Inc. | System and methods for cooling optical components |
| CN108808430A (en) * | 2018-06-14 | 2018-11-13 | 吉林省永利激光科技有限公司 | Optical fiber cladding optical power stripping device and stripping method |
| CN109273971A (en) * | 2018-10-22 | 2019-01-25 | 大族激光科技产业集团股份有限公司 | A kind of fibre cladding photospallation device and its cooling system |
| CN109921270A (en) * | 2019-05-06 | 2019-06-21 | 中国工程物理研究院激光聚变研究中心 | A kind of covering power device for stripping and laser |
| CN110582713A (en) * | 2017-04-28 | 2019-12-17 | 株式会社藤仓 | Cladding mode stripper |
| CN112421358A (en) * | 2020-11-06 | 2021-02-26 | 深圳市华星光电半导体显示技术有限公司 | Cladding optical power stripper and laser |
| US11646542B2 (en) * | 2019-02-01 | 2023-05-09 | Fanuc Corporation | Laser oscillator provided with heating suppression function for housing |
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| US20110110625A1 (en) * | 2008-06-25 | 2011-05-12 | Coractive High-Tech Inc. | Packages for high power operation of optical fiber components |
| JP2012234006A (en) * | 2011-04-28 | 2012-11-29 | Sumitomo Electric Ind Ltd | Optical fiber cable |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10120151B1 (en) * | 2015-03-06 | 2018-11-06 | Science Research Laboratory, Inc. | System and methods for cooling optical components |
| CN105048258A (en) * | 2015-05-27 | 2015-11-11 | 广东高聚激光有限公司 | Method and device for peeling light in optical fiber |
| CN105048258B (en) * | 2015-05-27 | 2019-07-30 | 北京华源集智科技有限公司 | Photospallation method and apparatus in a kind of optical fiber |
| CN104852258A (en) * | 2015-06-12 | 2015-08-19 | 中国工程物理研究院总体工程研究所 | Kilowatt-level optical fiber cladding power stripper employing micro-channel water cooling |
| CN104852258B (en) * | 2015-06-12 | 2018-07-06 | 中国工程物理研究院总体工程研究所 | Using the multikilowatt fibre cladding power stripper of microchannel water cooling |
| CN105425336A (en) * | 2015-12-01 | 2016-03-23 | 中电科天之星激光技术（上海）有限公司 | Heat-radiation-material-utilization-based light filtering method for fiber cladding |
| CN107134706A (en) * | 2016-02-29 | 2017-09-05 | 深圳朗光科技有限公司 | A kind of fibre cladding residual light filters out structure and optical fiber laser |
| CN105676348B (en) * | 2016-03-24 | 2018-09-14 | 芜湖安瑞激光科技有限公司 | A kind of full glass stripping means of fibre cladding residual light and the full glass of fibre cladding residual light remove device |
| CN105676348A (en) * | 2016-03-24 | 2016-06-15 | 芜湖安瑞激光科技有限公司 | Fiber cladding residual light all-wave detachment method and fiber cladding residual light all-wave detachment device |
| CN107290823A (en) * | 2016-04-01 | 2017-10-24 | 中国兵器装备研究院 | A kind of manufacture method of cladding light stripper |
| CN106019476A (en) * | 2016-07-14 | 2016-10-12 | 华中科技大学 | Optical fiber cladding optical power stripper and quartz casing thereof |
| CN110582713A (en) * | 2017-04-28 | 2019-12-17 | 株式会社藤仓 | Cladding mode stripper |
| CN110582713B (en) * | 2017-04-28 | 2020-12-18 | 株式会社藤仓 | Cladding mode stripper |
| US11422307B2 (en) | 2017-04-28 | 2022-08-23 | Fujikura Ltd. | Cladding mode stripper |
| CN107037538A (en) * | 2017-05-23 | 2017-08-11 | 广东工业大学 | A kind of fibre cladding power stripper and its manufacture method |
| CN107861193A (en) * | 2017-11-07 | 2018-03-30 | 大族激光科技产业集团股份有限公司 | Optical-fiber bundling device and preparation method thereof, abatement optical fiber return reflective method and semiconductor laser |
| CN108513822A (en) * | 2018-03-21 | 2018-09-11 | 华南理工大学 | A kind of energy-conserving plant culturing rack |
| CN108565665A (en) * | 2018-03-23 | 2018-09-21 | 中国工程物理研究院激光聚变研究中心 | Cladding power stripper and optical fiber laser |
| CN108565665B (en) * | 2018-03-23 | 2023-11-24 | 中国工程物理研究院激光聚变研究中心 | Cladding power stripper and fiber laser |
| CN108808430A (en) * | 2018-06-14 | 2018-11-13 | 吉林省永利激光科技有限公司 | Optical fiber cladding optical power stripping device and stripping method |
| CN109273971A (en) * | 2018-10-22 | 2019-01-25 | 大族激光科技产业集团股份有限公司 | A kind of fibre cladding photospallation device and its cooling system |
| US11646542B2 (en) * | 2019-02-01 | 2023-05-09 | Fanuc Corporation | Laser oscillator provided with heating suppression function for housing |
| CN109921270A (en) * | 2019-05-06 | 2019-06-21 | 中国工程物理研究院激光聚变研究中心 | A kind of covering power device for stripping and laser |
| CN112421358A (en) * | 2020-11-06 | 2021-02-26 | 深圳市华星光电半导体显示技术有限公司 | Cladding optical power stripper and laser |
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