CN207318774U - A kind of fibre cladding mould filters out and radiator - Google Patents
A kind of fibre cladding mould filters out and radiator Download PDFInfo
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- CN207318774U CN207318774U CN201721289833.XU CN201721289833U CN207318774U CN 207318774 U CN207318774 U CN 207318774U CN 201721289833 U CN201721289833 U CN 201721289833U CN 207318774 U CN207318774 U CN 207318774U
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- Prior art keywords
- refraction
- layer
- high index
- refractive index
- radiator
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- 239000000835 fiber Substances 0.000 title claims abstract description 58
- 238000005253 cladding Methods 0.000 title claims abstract description 32
- 239000010410 layer Substances 0.000 claims abstract description 46
- 239000002346 layers by function Substances 0.000 claims abstract description 10
- 239000011241 protective layer Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 239000013307 optical fiber Substances 0.000 description 15
- 230000003287 optical effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
Abstract
A kind of fibre cladding mould of the utility model offer filters out and radiator, including：Cooled plate, double clad filter mode fiber, the cooled plate is equipped with U-type groove, the double clad filter mode fiber includes input section, deferent segment, interlude in the longitudinal direction, the interlude of the double clad filter mode fiber is placed in U-type groove, and its functional layer includes the different high index of refraction dope layer of parallel arrangement of a variety of refractive index.By the structure heat can be allowed uniformly and quickly to complete heat dissipation at different sections.
Description
Technical field
Optical fiber laser or fiber optical amplifier technology field are the utility model is related to, particularly one kind is used for optical fiber laser
Or the cladding light of fiber amplifier filters out and radiator.
Background technology
Doubly clad optical fiber is made of fibre core, Inner coverings, surrounding layer and protective layer, and fibre core is by being doped with rare earth ion
SiO2 is formed, and as the transmission channel of laser, Inner coverings are usually smaller than fibre core by refractive index, and lateral dimension and numerical value aperture ratio are fine
The big pure quartz of core is formed, and serves as multimode pumping optical channel.Surrounding layer is made of polymer of the refractive index less than quartz, outermost
Layer is typically plastic protective layer.Since with larger cross-section and numerical aperture, compared to general single mode fiber is played, doubly clad optical fiber leads to
The larger pump light of the angle of divergence can be absorbed by crossing cladding pumping, substantially increase fiber ring laser system pump coupling efficiency and
Output power, is widely applied in high-capacity optical fiber laser.
But in practical applications, pump light generally can not be fully absorbed by fibre core and mixed in the signal laser of output terminal
Unabsorbed pump light；The amplified spontaneous emission light (ASE) inspired in fibre core may leak into covering；In addition, welding
It is lost, pattern mismatches at fusing point, and the factor such as fibre-optical bending, also would generally be such that the high-order mode of generation is leaked in covering.These
Cladding light can cause Laser Output Beam degradation, be unfavorable for stable operation of the system in the case of high power.
The thinking of cladding light method is filtered out at present mainly from cladding light total reflection condition is destroyed, and is roughly divided into two
Class, the first kind removes the one section of protective layer and surrounding layer of doubly clad optical fiber, around the optical fiber Inner coverings that this section exposes
High index of refraction optical material is filled, but such a method causes cladding light to be filtered out in shorter length, causes local temperature mistake
Height, and the luminous energy of absorption can be changed into thermal energy by optical material, largely limit its luminous power that can be filtered out.It is another
Class method is in the quartzy Inner cladding surfaces manufacturing defect exposed so that the incidence angle of cladding light is unsatisfactory for being totally reflected
Condition, so as to be filtered out, although the heat dissipation of such a method is more uniform, the defects of introducing, causes the part that optical fiber exposes
Easily it is broken, makes troubles to practical application.
Utility model content
The utility model aims to solve the problem that at least one technical problem existing in the prior art, for this reason, the utility model carries
A kind of fibre cladding mould has been supplied to filter out and radiator, including：Cooled plate, double clad filter mode fiber, the cooled plate are equipped with U
Type groove, the double clad filter mode fiber include input section, deferent segment, interlude in the longitudinal direction, and the double clad filters mould light
Fine interlude is placed in U-type groove, and its functional layer includes the different high index of refraction dope layer of parallel arrangement of a variety of refractive index.
By the structure heat can be allowed uniformly and quickly to complete heat dissipation at different sections.
To reach above-mentioned purpose, concrete technical scheme provided by the utility model is：
A kind of fibre cladding mould filters out and radiator, including：Cooled plate, the cooled plate are equipped with U-type groove；Double clad
Mode fiber is filtered, the double clad filter mode fiber includes fibre core, inner cladding, functional layer successively from inside to outside, and the double clad filters mould
Optical fiber includes input section, deferent segment, interlude in the longitudinal direction, and the input section, the functional layer of deferent segment include outsourcing
Layer, protective layer, the interlude are placed in the U-type groove, and the functional layer of the interlude includes parallel arrangement of a variety of refractions
The different high index of refraction dope layer of rate.
As the preferred of such scheme, also it is close to be provided with no coating parallel on the interlude of the double clad filter mode fiber
The coreless fiber of layer.
As the preferred of such scheme, the different high index of refraction dope layer of a variety of refractive index is two kinds of refractive index differences
High index of refraction dope layer one, high index of refraction dope layer two, the refractive index of the high index of refraction dope layer one is less than high index of refraction
The refractive index of dope layer two, the high index of refraction dope layer one are arranged at the both ends of the U-type groove, the high index of refraction dope layer
Two are arranged at the centre of the U-type groove.
As the preferred of such scheme, the length of the high index of refraction dope layer two is more than the high index of refraction dope layer one
Length.
As the preferred of such scheme, the refractive index of the high index of refraction dope layer two is less than the centreless of the no coat
The refractive index of optical fiber.
As the preferred of such scheme, the inner groove surface of the U-type groove is equipped with graphene film.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
Put, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is filtered out for a kind of fibre cladding mould provided by the utility model and the structure diagram of radiator.
Embodiment
Below in conjunction with the attached drawing of the utility model, the technical solution of the utility model is clearly and completely described,
Obviously, described embodiment is only the utility model part of the embodiment, instead of all the embodiments.It is new based on this practicality
Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figure 1, filtered out the present embodiment provides a kind of fibre cladding mould and radiator, including：
(1) metal water cold plate 01, the metal water cold plate are equipped with U-type groove 02；
(2) double clad filter mode fiber 03, the double clad filter mode fiber include fibre core, inner cladding, work(successively from inside to outside
Ergosphere, the double clad filter mode fiber include input section, deferent segment, interlude, the input section, deferent segment in the longitudinal direction
Functional layer include surrounding layer, protective layer, the interlude is placed in the U-type groove, and the functional layer of the interlude includes
The different high index of refraction dope layer of parallel arrangement of a variety of refractive index, the different high index of refraction dope layer of a variety of refractive index are
The different high index of refraction dope layer 1 of two kinds of refractive index, high index of refraction dope layer 2 032, the high index of refraction dope layer one
Refractive index be N3, the refractive index of the high index of refraction dope layer two is N4, the high index of refraction dope layer 1 is arranged at institute
The both ends of U-type groove are stated, the high index of refraction dope layer 2 032 is arranged at the centre of the U-type groove, and the double clad filters mode fiber
Interlude on be also close to the coreless fiber 04 that is provided with no coat parallel, the refractive index of the coreless fiber of the no coat
For N5, fiber core refractive index N1, the Inner cladding indexs are N2, the relation between each refractive index is：N1＜ N2＜ N3＜ N4＜
N5。
A kind of fibre cladding mould provided by the utility model filters out and the principle of radiator is：
According to the law of refraction and cirtical angle of total reflection occurrence condition, refraction is coated outside the Inner coverings of double clad filter mode fiber
The optical material that rate is more than Inner coverings effectively can filter out the cladding light that fibre core is leaked into covering, and the folding of optical material
Penetrate that rate is bigger, the cladding light filtered out is more；
The U-shaped bending in mode fiber bottom is filtered, is conducive to the flashlight high-order mode in fibre core and ASE high-order modes is leaked to covering
In, suppress the amplified spontaneous emission in optical fiber, while the larger cladding light of the angle of divergence in covering is filtered out, further improve light beam matter
Amount；
Further absorption is filtered out mode fiber with the coreless fiber that filter mode fiber fits closely not filter out completely totally
Cladding light；
N1＜ N2＜ N3＜ N4＜ N5So that covering in terms of along filter mode fiber direction and vertical filter mode fiber direction two by by
Step filters out, and heat dissipation is uniformly rapid, it is not easy to the phenomenon for hot-spot occur and causing apparatus system to burn.
Further, the length of the high index of refraction dope layer 2 032 is more than the length of the high index of refraction dope layer 1
Degree.Due to the cladding light that filters out in filter layer (including inner cladding and high index of refraction dope layer) approximate exponential damping, set compared with
Long filter layer length is conducive to slow down heat accumulation, and the optical fiber span length coated with high index optical material than coating compared with
The optical fiber segment length of low-refraction optical fiber light-guiding material, can make the heat load on optical fiber than more uniform
Further, the inner groove surface of the U-type groove is equipped with graphene film.It is thin that U-type groove surface is equipped with a layer graphene
Film so that the thermal energy accumulated in filter mode fiber and coreless fiber can more rapidly and evenly be conducted to quilt on metal water cold plate
Water-cooling system is taken away, and luminous power can be filtered out by further improving.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (6)
1. a kind of fibre cladding mould filters out and radiator, it is characterised in that including：
Cooled plate, the cooled plate are equipped with U-type groove；
Double clad filters mode fiber, and the double clad filter mode fiber includes fibre core, inner cladding, functional layer successively from inside to outside, described
Double clad filter mode fiber includes input section, deferent segment, interlude, the input section, the functional layer of deferent segment in the longitudinal direction
Include surrounding layer, protective layer, the interlude is placed in the U-type groove, and the functional layer of the interlude includes parallel set
The different high index of refraction dope layer of a variety of refractive index.
2. fibre cladding mould according to claim 1 filters out and radiator, it is characterised in that the double clad filters mould light
Also it is close to the coreless fiber for being provided with no coat parallel on fine interlude.
3. fibre cladding mould according to claim 2 filters out and radiator, it is characterised in that a variety of refractive index are not
With high index of refraction dope layer be the different high index of refraction dope layer one of two kinds of refractive index, high index of refraction dope layer two, the height
The refractive index of refractive index dope layer one is less than the refractive index of high index of refraction dope layer two, and the high index of refraction dope layer one is arranged at
The both ends of the U-type groove, the high index of refraction dope layer two are arranged at the centre of the U-type groove.
4. fibre cladding mould according to claim 3 filters out and radiator, it is characterised in that the high index of refraction coating
The length of layer two is more than the length of the high index of refraction dope layer one.
5. fibre cladding mould according to claim 4 filters out and radiator, it is characterised in that the high index of refraction coating
The refractive index of layer two is less than the refractive index of the coreless fiber of the no coat.
6. filtered out according to claim 1-5 any one of them fibre cladding moulds and radiator, it is characterised in that described U-shaped
The inner groove surface of groove is equipped with graphene film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721289833.XU CN207318774U (en) | 2017-09-30 | 2017-09-30 | A kind of fibre cladding mould filters out and radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721289833.XU CN207318774U (en) | 2017-09-30 | 2017-09-30 | A kind of fibre cladding mould filters out and radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207318774U true CN207318774U (en) | 2018-05-04 |
Family
ID=62428892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721289833.XU Withdrawn - After Issue CN207318774U (en) | 2017-09-30 | 2017-09-30 | A kind of fibre cladding mould filters out and radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207318774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188608A (en) * | 2018-10-29 | 2019-01-11 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser energy wire jumper and preparation method thereof |
-
2017
- 2017-09-30 CN CN201721289833.XU patent/CN207318774U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188608A (en) * | 2018-10-29 | 2019-01-11 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser energy wire jumper and preparation method thereof |
| CN109188608B (en) * | 2018-10-29 | 2019-10-18 | 武汉锐科光纤激光技术股份有限公司 | A kind of laser energy wire jumper and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430000 floor 1, building 5, block B, Phoenix Industrial Park (Wuhan - China Optical Valley Cultural and Creative Industrial Park), No. 52, Liufang Avenue, East Lake New Technology Development Zone, Wuhan, Hubei Province Patentee after: Wuhan Changjin Photonics Technology Co.,Ltd. Address before: Floor 6, block a, overseas talents building, future science and Technology City, 999 Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee before: WUHAN CHANGJIN LASER TECHNOLOGY CO.,LTD. |
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| CP03 | Change of name, title or address | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180504 Effective date of abandoning: 20231203 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180504 Effective date of abandoning: 20231203 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |