CN104242026B - Fiber cladding light filter and forming method thereof - Google Patents
Fiber cladding light filter and forming method thereof Download PDFInfo
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- CN104242026B CN104242026B CN201410429497.9A CN201410429497A CN104242026B CN 104242026 B CN104242026 B CN 104242026B CN 201410429497 A CN201410429497 A CN 201410429497A CN 104242026 B CN104242026 B CN 104242026B
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Abstract
The present invention proposes a kind of fiber cladding light filter, realized by setting big covering on exposed fibre cladding, big covering is set on fibre cladding and integrally formed with fibre cladding, big covering has transmission light-emitting face, reflection light-emitting face and light scattering face, the transmission of the transmission more than light scattering face of transmission light-emitting face and reflection light-emitting face, big covering is identical with the material of fibre cladding.The fiber cladding light filter of the embodiment of the present invention can filter covering luminous power during Laser Transmission, and the power tolerance and cladding light that can significantly improve stripper filter efficiency.The invention allows for a kind of forming method of fiber cladding light filter.
Description
Technical field
The present invention relates to Fiber laser technology field, more particularly to a kind of fiber cladding light filter and forming method thereof.
Background technology
As Fiber laser technology is growing, optical fiber output ability is continuously available lifting, in some specific fields, needs
Transimission power in fibre cladding is discharged.The pumping for for example being carried out in gain afterbody is filtered, and in order to improve output
The brightness of laser, the power to being transmitted in covering is filtered, and obtains pure fibre core output.Leakage covering can be provided at present
The technology of power has much with equipment, and mainstream technology technique is one refractive index matching layers of setting outside fibre cladding.So that
The refractive index of this matching layer is more than fibre cladding refractive index.So as to destroy total reflection condition, the light in covering is led into
Matching Es-region propagations.This part of light is diffused in the middle of environment by other technologies means again.
The major defect of above-mentioned technology is:
1st, for the interface produced by two kinds of different refractivity materials, Fresnel reflection can be produced.Propagated i.e. in covering
A certain bar optical fiber light cannot be by once transmiting and whole is directed into matching layer.This effect can cause Leak artifact
There is reflection (such as temperature rise, extrude stress) meeting under certain condition at this interface in length, and laser in both sides
Cause the light intensity coherent superposition of this near interface some local locations and strengthened.This is for filtering for high power operating
It is very unfavorable.
2nd, because current many products use colloid matching layer, its for the predetermined wavelength to be filtered have one it is specific
Absorption coefficient.Certain absorption is also deposited to cladding light simultaneously during cladding light is drawn.This problem causes covering
Light stripper occurs obvious fuel factor.It is also the main cause for restricting glue-line matching layer stripper at present.
The content of the invention
It is contemplated that at least solving one of technical problem in above-mentioned correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of fiber cladding light filter, when can filter Laser Transmission
Covering luminous power, the power tolerance and cladding light that can significantly improve stripper filter efficiency.
It is another object of the present invention to provide a kind of forming method of fiber cladding light filter.
To achieve these goals, the embodiment of first aspect present invention proposes a kind of fiber cladding light filter, bag
Include:Exposed fibre cladding, obtains after divesting coat by optical fiber;Big covering, the big covering is set in the fibre cladding
Upper and integrally formed with the fibre cladding, the big covering has transmission light-emitting face, reflection light-emitting face and light scattering face,
The transmission of the transmission light-emitting face and the reflection light-emitting face is more than the transmission in the light scattering face, the big covering
Material with the fibre cladding is identical.
Fiber cladding light filter according to embodiments of the present invention, its welding or bonding on original exposed fibre cladding
The big covering of material identical with former fibre cladding, and big covering transmission light-emitting face and reflection light-emitting face have passed through polishing,
The treatment such as polishing, the light scattering face of big covering have passed through frosting treatment.Therefore, the fiber cladding light filter can filter laser
Covering luminous power during transmission, the power tolerance and cladding light that can significantly improve stripper filters efficiency, in addition, should
Fiber cladding light filter can also avoid the fuel factor that matching materials is produced to the absorption of transmission light.
In addition, fiber cladding light filter according to the above embodiment of the present invention can also have following additional technology special
Levy:
In some instances, the constituent material of the fibre cladding and the big covering is quartz.
In some instances, the big covering also includes the anti-reflection film being arranged on the transmission light-emitting face.
The embodiment of second aspect present invention provides a kind of forming method of fiber cladding light filter, methods described bag
Include following steps:The big covering of welding or bonding material identical with the fibre cladding, the big bag on the fibre cladding
Layer has transmission light-emitting face, reflection light-emitting face and light scattering face;Respectively to the transmission light-emitting face, reflection light-emitting face
Polished, polishing with improve it is described transmission light-emitting face and the reflection light-emitting face transmission;The light is dissipated
The face of penetrating carries out frosting treatment to improve transmission light divergence speed.
The forming method of fiber cladding light filter according to embodiments of the present invention, on fibre cladding welding and bonding with
The big covering of the identical material of fibre cladding, so that can be formed that characteristic filtered without interface, eliminates the Fresnel occurred on interface
Reflection, and the treatment such as polished the transmission light-emitting face of big covering and reflection light-emitting face respectively, polished, to improve transmission
The transmission of light-emitting face and reflection light-emitting face, and carry out frosting treatment to the light scattering face of big covering to improve transmission light hair
Dissipate speed.Therefore, covering luminous power when the method can filter Laser Transmission, can significantly improve the power tolerance of stripper
Ability and cladding light filter efficiency, in addition, the method can also avoid the thermal effect that matching materials is produced to the absorption of transmission light
Should.
In addition, the forming method of fiber cladding light filter according to the above embodiment of the present invention can also be with following attached
Plus technical characteristic:
In some instances, the section of the big covering and axle section shape can have any shape.
In some instances, also include:The angle of wedge for suppressing interface Fresnel reflection is added to the transmission light-emitting face.
In some instances, also include:Anti-reflection film is set to the transmission light-emitting face and the reflection light-emitting face.
In some instances, also include:The fibre cladding and the big covering are carried out by servicing unit directly cold
But, wherein, the servicing unit includes accommodating the metal shell of optical fiber, light absorbing material and cooling liquid.
In some instances, also include:The metal shell is cooled down with the heat of the transmission light generation that dissipates.
In some instances, the constituent material of the fibre cladding and the big covering is quartz.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein:
Fig. 1 is the structural representation of fiber cladding light filter according to an embodiment of the invention;
Fig. 2 is the structural representation of fiber cladding light filter in accordance with another embodiment of the present invention;
Fig. 3 is the transmission path schematic diagram of transmission light in optical fiber according to an embodiment of the invention;And
Fig. 4 is the flow chart of the forming method of fiber cladding light filter according to an embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.
Below in conjunction with Description of Drawings fiber cladding light filter according to embodiments of the present invention and forming method thereof.
Fig. 1 is the structural representation of fiber cladding light filter according to an embodiment of the invention.As shown in figure 1, root
According to the (not shown) of fiber cladding light filter 100 of one embodiment of the invention, including:Fibre cladding 110 and big covering
120。
Wherein, the fibre core of optical fiber is located in fibre cladding 110.Big covering 120 is set on fibre cladding 110 and and optical fiber
Covering 110 is integrally formed.In one particular embodiment of the present invention, big covering 120 for example can be by high-temperature heating welding
The mode of mode or bonding is integrally formed with fibre cladding 110, also, in one embodiment of the invention, the He of big covering 120
The constituent material of fibre cladding 110 is identical, is quartz, so that big covering 120 is formed without the equal of interface with fibre cladding 110
Even connection, can eliminate the Fresnel reflection occurred on interface.In addition, in some instances, the boundary of the big covering of above-mentioned quartz
Face and axle section shape do not exist any limitation.
In addition, big covering 120 has transmission light-emitting face 121, reflection light-emitting face 122 and light scattering face 123.Wherein,
The transmission of the transmission more than light scattering face 123 of transmission light-emitting face 121 and reflection light-emitting face 122.Specifically, as
One specific example, with reference to shown in Fig. 1, gives a kind of fiber cladding light filter 100 that can significantly shorten and filter distance
Structural representation.The fibre core and fibre cladding 110 of optical fiber collectively form single cladded-fiber that constraint laser signal is propagated.Its
In, flashlight is transmitted in fibre core, and the flashlight for overflowing on a small quantity is transmitted with the pump light of remnants in fibre cladding 110.Greatly
Covering 120 is hollow cylinder quartz material covering, and it has identical material and characteristic with fibre cladding 110.Such as Fig. 1 institutes
Show, can by way of high-temperature heating welding or with fibre cladding 110 be integrally formed big covering 120 by the mode of bonding,
The result for obtaining is to form the uniform connection without interface between fibre cladding 110 and the big covering 120 for introducing.Need explanation
, the connection of above-mentioned bonding pattern is generally used for some low power fields, can be with simplification of flowsheet.
With reference to shown in upper figure in Fig. 1 and Fig. 3, from a left side to the transmission direction for being again laser (transmission light), and to big covering 120
Transmission light-emitting face 121 be handled as follows:The interface is polished, is polished, while leading in welding or bonding process
Influence of certain technological means reduction to the interface is crossed, surface roughness reduction is prevented and is collapsed.In addition, of the invention one
In individual embodiment, big covering 120 also includes the anti-reflection film being arranged on transmission light-emitting face 121.In other words, i.e., go out in transmission light
The anti-reflection film that covering transmission light corresponding wavelength is plated in face 121 is penetrated, the purpose of transmission is increased to reach.
Further, reflection light-emitting face 122 is handled as follows:The interface is polished, is polished, while molten
Connect or bonding process in influence to the interface is reduced by certain technological means, prevent surface roughness reduction and collapse.
In addition, can also plate the anti-reflection film of covering transmission light corresponding wavelength to reflection light-emitting face 122, the purpose of transmission is increased to reach.
In addition, frosting treatment is carried out to light scattering face 123, to make transmission light be exhaled from big covering 120 as soon as possible.
Specifically, above-mentioned fiber cladding light filter 100 is during actual filtering, when in fibre cladding 110
After transmission light contacts big covering 120, constraints becomes big covering 120 by original fibre cladding 110.In transmitting procedure
In, because the light scattering face 123 being in contact with environment is by feather plucking, therefore during this part light energy constantly diffuses to environment.By
In eliminate compared to traditional index matching stripper exist interface, therefore, fiber cladding light filter 100 can be more
Transmitted during the transmission light in fibre cladding 110 is led into big covering 120 in short distance.
And because light scattering face 123 is by feather plucking, this part of light energy is promptly diffused in environment.Some fractional value holes
The light in footpath is gone out by transmitting the outgoing of light-emitting face 121, or after being reflected by transmission light-emitting face 121 by reflection light-emitting face 122
Penetrate, in diffusing to environment.It is to be capable of achieving filtering for short-range cladding light by said process.
In addition, in above-mentioned specific example, as shown in Fig. 2 can be also polished to the light scattering face 123 of big covering 120
Treatment, without carrying out frosting treatment, the transmission direction of its transmission light is as shown in figure below in Fig. 3.So, big covering 120 can be made
There are similar transmission conditions to fibre cladding 110, the transmission light that can be constrained in fibre cladding 110 is relayed in big covering 120
Resume defeated.Specifically, in this example, during actually the filtering of fiber cladding light filter 100, fibre cladding is worked as
After transmission light in 110 touches big covering 120, constraints is changed into big covering 120 from original fibre cladding 110.Passing
During defeated, because the light scattering face 123 contacted with environment has carried out polishing, therefore this part light energy cannot be diffused to
In environment, can be by configuring transmission light-emitting face 121 and reflection light-emitting face 122 with the area ratio of fibre cladding 110 to configure
Transmission light in the covering for needing filters ratio.Further, the biography of the numerical aperture being filtered out the need for after allocation ratio
Lose by transmitting the outgoing of light-emitting face 121, or by the outgoing of reflection light-emitting face 122 after being reflected by transmission light-emitting face 121,
In diffusing to environment.That is, said process realizes the configurable transmission light for filtering ratio filters process.
Fiber cladding light filter according to embodiments of the present invention, its welding or bonding on original exposed fibre cladding
The big covering of material identical with former fibre cladding, and big covering transmission light-emitting face and reflection light-emitting face have passed through polishing,
The treatment such as polishing, the light scattering face of big covering have passed through frosting treatment.Therefore, the fiber cladding light filter can filter laser
Covering luminous power during transmission, the power tolerance and cladding light that can significantly improve stripper filters efficiency, in addition, should
Fiber cladding light filter can also avoid the fuel factor that matching materials is produced to the absorption of transmission light.
The invention allows for a kind of forming method of fiber cladding light filter.
Fig. 4 is the flow chart of the forming method of fiber cladding light filter according to an embodiment of the invention.Such as Fig. 4 institutes
Show, the forming method of fiber cladding light filter according to an embodiment of the invention, wherein, the fiber cladding light filter bag
Fibre cladding and big covering are included, the method is comprised the following steps:
Step S401, the big covering of welding or bonding material identical with fibre cladding on fibre cladding, big covering has
Transmission light-emitting face, reflection light-emitting face and light scattering face.Wherein, in one embodiment of the invention, fibre cladding and big
The constituent material of covering is quartz, so that big covering forms the uniform connection without interface with fibre cladding, can eliminate generation and exist
Fresnel reflection on interface, can also eliminate the fuel factor that matching materials is produced to the absorption of light.And of the invention another
In individual embodiment, the interface of big covering and axle section shape can have any shape.
Step S402, respectively to transmission light-emitting face, reflection light-emitting face is polished, polishing to be to improve transmission light
The transmission of exit facet and reflection light-emitting face.Further, in one embodiment of the invention, also to transmission light-emitting face
Add the angle of wedge for suppressing interface Fresnel reflection.In addition, anti-reflection film also is set to transmission light-emitting face and reflection light-emitting face, with
Increase its transmission.Specifically, as a specific example, with reference to shown in Fig. 1, give one kind and can significantly shorten and filter
The structural representation of the fiber cladding light filter of distance.The fibre core and fibre cladding of optical fiber collectively form constraint laser signal and pass
The single cladded-fiber broadcast.Wherein, flashlight is transmitted in fibre core, and the pump light of the flashlight for overflowing on a small quantity and remnants is in optical fiber
Transmitted in covering.Big covering is hollow cylinder quartz material covering, and it has identical material and characteristic with fibre cladding.
As shown in figure 1, can by way of high-temperature heating welding or be integrally formed for big covering and fibre cladding by the mode of bonding,
The result for obtaining is that the uniform connection without interface is formd between fibre cladding and the big covering of introducing.It should be noted that
Above-mentioned bonding pattern connection is generally used for some low power fields, can be with simplification of flowsheet.
With reference to shown in upper figure in Fig. 1 and Fig. 3, from a left side to the transmission direction for being again laser (transmission light), and to big covering
Transmission light-emitting face is handled as follows:The interface is polished, is polished, while by certain in welding or bonding process
Technological means reduces the influence to the interface, prevents surface roughness reduction and collapses.In addition, in one of the invention implementation
In example, can also be to setting anti-reflection film on transmission light-emitting face.In other words, i.e., in transmission light-emitting face plating covering transmission light correspondence ripple
Anti-reflection film long, the purpose of transmission is increased to reach.
Further, reflection light-emitting face is handled as follows:The interface is polished, is polished, while in welding
Or the influence to the interface is reduced by certain technological means in bonding process, prevent surface roughness reduction and collapse.Separately
Outward, can also be to setting anti-reflection film on reflection light-emitting face.In other words, i.e., in reflection light-emitting face plating covering transmission light corresponding wavelength
Anti-reflection film, with reach increase transmission purpose
Step S403, frosting treatment is carried out to light scattering face to improve transmission light divergence speed.
Specifically, during actual filtering, after the transmission light in fibre cladding contacts big covering, constraints
Big covering is become by original fibre cladding.In transmitting procedure, because the light scattering face that is in contact with environment is by feather plucking, because
This this part light energy is constantly diffused in environment.Due to eliminating the boundary existed compared to traditional index matching stripper
Face, therefore, it can be transmitted during the transmission light in fibre cladding is led into big covering in shorter distance.
And because light scattering face is by feather plucking, this part of light energy is promptly diffused in environment.Some small value apertures
Light ring is diffused to by reflected light exit face by transmission light exit face, or after being reflected by transmission light-emitting face
In border.It is to be capable of achieving filtering for short-range cladding light by said process.
In addition, in above-mentioned specific example, as shown in Fig. 2 the light scattering face of big covering can be also processed by shot blasting, and
Frosting treatment is not carried out, the transmission direction of its transmission light is as shown in figure below in Fig. 3.So, big covering and fibre cladding can be made
With similar transmission conditions, can constrain the transmission light in fibre cladding resumed in big covering relaying it is defeated.Specifically, at this
In example, during actually filtering, after the transmission light in fibre cladding touches big covering, constraints is by original light
Fine covering is changed into big covering.In transmitting procedure, because the light scattering face contacted with environment has carried out polishing, therefore this portion
Spectral energy cannot be diffused in environment, can be by configuring transmission light-emitting face and reflection light-emitting face and fibre cladding area ratio
Ratio is filtered come the transmission light in the covering needed for configuring.Further, the numerical value being filtered out the need for after allocation ratio
The transmission light in aperture by transmission light exit face, or by reflected light exit face after being reflected by transmission light-emitting face,
In diffusing to environment.That is, said process realizes the configurable transmission light for filtering ratio filters process.
In addition, in certain embodiments, the method also includes:Fibre cladding and big covering are carried out directly by servicing unit
Cooling is connect, wherein, servicing unit includes that the metal shell of optical fiber can be accommodated, compares the light absorbs material set at concentration in emergent light
Material and cooling liquid.Further, metal shell is cooled down by cooling liquid with the heat of the transmission light generation that dissipates,
Optical fiber and big covering can directly be cooled down by cooling liquid, so as to the ability of filtering can be improved.
The forming method of fiber cladding light filter according to embodiments of the present invention, on fibre cladding welding and bonding with
The big covering of the identical material of fibre cladding, so that can be formed that characteristic filtered without interface, eliminates the Fresnel occurred on interface
Reflection, and the treatment such as polished the transmission light-emitting face of big covering and reflection light-emitting face respectively, polished, to improve transmission
The transmission of light-emitting face and reflection light-emitting face, and carry out frosting treatment to the light scattering face of big covering to improve transmission light hair
Dissipate speed.Therefore, covering luminous power when the method can filter Laser Transmission, can significantly improve the power tolerance of stripper
Ability and cladding light filter efficiency, in addition, the method can also avoid the thermal effect that matching materials is produced to the absorption of transmission light
Should.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally;Can be that machinery connects
Connect, or electrically connect;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element, unless otherwise clearly restriction.For one of ordinary skill in the art
For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of fiber cladding light filter, it is characterised in that including:
Exposed fibre cladding, obtains after divesting coat by optical fiber;
Big covering, the big covering is set on the fibre cladding and integrally formed with the fibre cladding, the big covering
With transmission light-emitting face, reflection light-emitting face and light scattering face, the transmission light-emitting face and the reflection light-emitting face
Transmission is more than the transmission in the light scattering face, and the big covering is identical with the material of the fibre cladding, wherein, it is described big
Covering is by way of high-temperature heating welding or mode and the fibre cladding of bonding is integrally formed, the transmission light-emitting face, anti-
It is the interface processed by grinding and buffing to penetrate light-emitting face, and the light scattering face is by the interface of frosting treatment.
2. fiber cladding light filter according to claim 1, it is characterised in that the fibre cladding and the big covering
Constituent material for quartz.
3. fiber cladding light filter according to claim 1, it is characterised in that the big covering also includes being arranged on institute
State the anti-reflection film on transmission light-emitting face.
4. a kind of forming method of fiber cladding light filter, it is characterised in that the described method comprises the following steps:
The big covering of welding or bonding material identical with the fibre cladding on the fibre cladding, the big covering has biography
Lose exit facet, reflection light-emitting face and light scattering face;
Respectively to the transmission light-emitting face, reflection light-emitting face is polished, polishing to be to improve the transmission light outgoing
Face and the transmission of the reflection light-emitting face;
The light scattering face is carried out frosting treatment to improve transmission light divergence speed.
5. the forming method of fiber cladding light filter according to claim 4, it is characterised in that the big covering cuts
Face and axle section shape can have any shape.
6. the forming method of fiber cladding light filter according to claim 4, it is characterised in that also include:
The angle of wedge for suppressing interface Fresnel reflection is added to the transmission light-emitting face.
7. the forming method of fiber cladding light filter according to claim 4, it is characterised in that also include:
Anti-reflection film is set to the transmission light-emitting face and the reflection light-emitting face.
8. the forming method of fiber cladding light filter according to claim 4, it is characterised in that also include:
The fibre cladding and the big covering are directly cooled down by servicing unit, wherein, the servicing unit includes
Accommodate metal shell, light absorbing material and the cooling liquid of optical fiber.
9. the forming method of fiber cladding light filter according to claim 8, it is characterised in that also include:
The metal shell is cooled down with the heat of the transmission light generation that dissipates.
10. the forming method of the fiber cladding light filter according to claim any one of 4-9, it is characterised in that described
The constituent material of fibre cladding and the big covering is quartz.
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CN110646885A (en) * | 2019-07-01 | 2020-01-03 | 西安中科汇纤光电科技有限公司 | Optical fiber cladding stripper and manufacturing method thereof |
TWI723942B (en) * | 2020-09-02 | 2021-04-01 | 國家中山科學研究院 | High-power all-fiber type anti-reflection device |
CN114527534B (en) * | 2022-04-24 | 2022-06-24 | 武汉锐科光纤激光技术股份有限公司 | Optical fiber mold stripper, preparation method of optical fiber mold stripper and laser equipment |
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