CN104242026A - Optical fiber wrapping layer light filter-out device and forming method thereof - Google Patents
Optical fiber wrapping layer light filter-out device and forming method thereof Download PDFInfo
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- CN104242026A CN104242026A CN201410429497.9A CN201410429497A CN104242026A CN 104242026 A CN104242026 A CN 104242026A CN 201410429497 A CN201410429497 A CN 201410429497A CN 104242026 A CN104242026 A CN 104242026A
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Abstract
The invention provides an optical fiber wrapping layer light filter-out device which is obtained by arranging a large wrapping layer on a naked optical fiber wrapping layer. The large wrapping layer is arranged on the optical fiber wrapping layer in a sleeving mode, and the large wrapping layer and the optical fiber wrapping layer are integrally formed. The large wrapping layer is provided with a transmission light emitting face, a reflection light emitting face and a light scattering face. The transparency of the transmission light emitting face and the transparency of the reflection light emitting face are larger than the transparency of the light scattering face. The large wrapping layer and the optical fiber wrapping layer are made of the same material. By means of the optical fiber wrapping layer light filter-out device, the wrapping layer luminous power during laser transmission can be filtered out, and the power resistance of the filter-out device and the light filter-out efficiency of the wrapping layers can be remarkably improved. The invention further provides a forming method of the optical fiber wrapping layer light filter-out device.
Description
Technical field
The present invention relates to Fiber laser technology field, particularly a kind of fiber cladding light filter and forming method thereof.
Background technology
Along with Fiber laser technology is growing, optical fiber fan-out capability constantly gets a promotion, and in some specific field, needs to discharge through-put power in fiber cladding.Such as in the pumping filtering that gain afterbody carries out, and in order to improve the brightness of Output of laser, filtering being carried out to the power transmitted in covering, obtaining pure fibre core and exporting.The technology of leakage covering power and equipment can be provided at present to have a lot, and mainstream technology technique is outside fiber cladding, arrange a refractive index matching layers.The refractive index of this matching layer is made to be greater than fiber cladding refractive index.Thus destruction total reflection condition, the light in covering is guided and enters matching layer propagation.By other technologies means, this part of light is diffused in the middle of environment again.
The major defect of above-mentioned technology is:
1, for the interface that two kinds of different refractivity materials produce, Fresnel reflection can be produced.Namely a certain bar optical fiber propagated in covering all by a transmission cannot be directed into matching layer.This effect can cause the length of Leak artifact, and laser in both sides occur at this interface reflection under certain condition (such as temperature rise extrudes stressed) the light intensity coherent superposition of this some local location of near interface can be caused and strengthened.This filtering for high power running is very disadvantageous.
2, because current a lot of product uses colloid matching layer, it wants the wavelength of filtering to have a specific absorption coefficient for predetermined.In the process of drawing cladding light, also certain absorption is deposited to cladding light simultaneously.This problem causes cladding light stripper to there will be obvious thermal effect.Also be the main cause restricting glue-line matching layer stripper at present.
Summary of the invention
The present invention is intended to solve one of technical problem in above-mentioned correlation technique at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of fiber cladding light filter, can filtering laser transmission time cladding light power, power tolerance and the cladding light filtering efficiency of stripper can be improved significantly.
Another object of the present invention is a kind of formation method providing fiber cladding light filter.
To achieve these goals, the embodiment of first aspect present invention proposes a kind of fiber cladding light filter, comprising: exposed fiber cladding, obtains after divesting coat by optical fiber; Large covering, described large covering to be set on described fiber cladding and to be integrally formed with described fiber cladding, described large covering has transmission light exit facet, reverberation exit facet and light scattering face, the transmission of described transmission light exit facet and described reverberation exit facet is greater than the transmission in described light scattering face, and described large covering is identical with the material of described fiber cladding.
According to the fiber cladding light filter of the embodiment of the present invention, the large covering of its welding or bonding and former fiber cladding same material on original exposed fiber cladding, and the transmission light exit facet of large covering and reverberation exit facet have passed through the process such as polishing, polishing, the light scattering face of large covering have passed through frosting treatment.Therefore, this fiber cladding light filter can filtering laser transmission time cladding light power, power tolerance and the cladding light filtering efficiency of stripper can be improved significantly, in addition, the thermal effect that this fiber cladding light filter also can avoid matching materials to produce 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 technical characteristic:
In some instances, the constituent material of described fiber cladding and described large covering is quartz.
In some instances, described large covering also comprises the anti-reflection film be arranged on described transmission light exit facet.
The embodiment of second aspect present invention provides a kind of formation method of fiber cladding light filter, said method comprising the steps of: the large covering of welding or bonding and described fiber cladding same material on described fiber cladding, described large covering has transmission light exit facet, reverberation exit facet and light scattering face; Respectively described transmission light exit facet, reverberation exit facet are polished, polishing to be to improve the transmission of described transmission light exit facet and described reverberation exit facet; Frosting treatment is carried out to improve transmission light divergence speed to described light scattering face.
According to the formation method of the fiber cladding light filter of the embodiment of the present invention, the large covering of welding and bonding and fiber cladding same material on fiber cladding, thus can be formed without interface filtering characteristic, eliminate the Fresnel reflection occurred on interface, and respectively to the process such as transmission light exit facet and reverberation exit facet is polished, polishing of large covering, to improve the transmission of transmission light exit facet and reverberation exit facet, and frosting treatment is carried out to improve transmission light divergence speed to the light scattering face of large covering.Therefore, the method can filtering laser transmission time cladding light power, power tolerance and the cladding light filtering efficiency of stripper can be improved significantly, in addition, the thermal effect that the method also can avoid matching materials to produce the absorption of transmission light.
In addition, the formation method of fiber cladding light filter according to the above embodiment of the present invention can also have following additional technical characteristic:
In some instances, the cross section of described large covering and axle section shape can have any shape.
In some instances, also comprise: described transmission light exit facet is added to the angle of wedge suppressing interface Fresnel reflection.
In some instances, also comprise: anti-reflection film is arranged to described transmission light exit facet and described reverberation exit facet.
In some instances, also comprise: directly cooled described fiber cladding and described large covering by servicing unit, wherein, described servicing unit comprises the metal shell of receiving optical fiber, light absorbing material and cooling liquid.
In some instances, also comprise: described metal shell is cooled to dissipate the heat that transmission light produces.
In some instances, the constituent material of described fiber cladding and described large covering is quartz.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, 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 formation method of fiber cladding light filter according to an embodiment of the invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Below in conjunction with accompanying drawing description according to fiber cladding light filter of the embodiment 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, fiber cladding light filter 100 (not shown) according to an embodiment of the invention, comprising: fiber cladding 110 and large covering 120.
Wherein, the fibre core of optical fiber is positioned at fiber cladding 110.Large covering 120 to be set on fiber cladding 110 and to be integrally formed with fiber cladding 110.In one particular embodiment of the present invention, large covering 120 is such as integrally formed by the mode of high-temperature heating welding or the mode of bonding and fiber cladding 110, and, in one embodiment of the invention, large covering 120 is identical with the constituent material of fiber cladding 110, be quartz, thus large covering 120 formed with fiber cladding 110 be connected without the even of interface, the Fresnel reflection occurred on interface can be eliminated.In addition, in some instances, there is not any restriction in interface and the axle section shape of the large covering of above-mentioned quartz.
In addition, large covering 120 has transmission light exit facet 121, reverberation exit facet 122 and light scattering face 123.Wherein, the transmission of transmission light exit facet 121 and reverberation exit facet 122 is greater than the transmission in light scattering face 123.Specifically, as a concrete example, shown in composition graphs 1, give a kind of structural representation that significantly can shorten the fiber cladding light filter 100 of filtering distance.The fibre core of optical fiber and fiber cladding 110 form single cladded fiber that constraint laser signal is propagated jointly.Wherein, flashlight transmits in fibre core, and the flashlight overflowed on a small quantity transmits in fiber cladding 110 with remaining pump light.Large covering 120 is the cylinder quartz material covering of hollow, and it has identical material and characteristic with fiber cladding 110.As shown in Figure 1, be integrally formed by large covering 120 by the mode of high-temperature heating welding or the mode of bonding with fiber cladding 110, the result obtained defines to be connected without the even of interface between fiber cladding 110 with the large covering 120 introduced.It should be noted that, above-mentioned bonding pattern connection is generally applied to some low power field, can simplification of flowsheet.
In composition graphs 1 and Fig. 3 shown in upper figure, from a left side to the transmission direction being again laser (transmission light), and the transmission light exit facet 121 of large covering 120 is handled as follows: polished in this interface, polishing, in welding or bonding process, reduce the impact on this interface by certain technological means simultaneously, prevent surface roughness from reducing and subsiding.In addition, in one embodiment of the invention, large covering 120 also comprises the anti-reflection film be arranged on transmission light exit facet 121.In other words, namely plate the anti-reflection film of covering transmission light corresponding wavelength at transmission light exit facet 121, to reach the object increasing transmission.
Further, reverberation exit facet 122 is handled as follows: to be polished in this interface, polishing, in welding or bonding process, reduces the impact on this interface by certain technological means simultaneously, prevent surface roughness reduction and subside.In addition, also can plate the anti-reflection film of covering transmission light corresponding wavelength to reverberation exit facet 122, to reach the object increasing transmission.
In addition, frosting treatment is carried out to light scattering face 123, exhale from large covering 120 to make transmission light as soon as possible.
Specifically, above-mentioned fiber cladding light filter 100 is in the filtering process of reality, and after the transmission light in fiber cladding 110 contacts large covering 120, constraints becomes large covering 120 by original fiber cladding 110.In transmitting procedure, because the light scattering face 123 contacted with environment facies is by hacking, therefore this part light energy constantly diffuses in environment.Owing to eliminating the interface existed compared to traditional index matching stripper, therefore, fiber cladding light filter 100 can guide the transmission light in fiber cladding 110 to enter in large covering 120 and transmit in shorter distance.
And because light scattering face 123 is by hacking, this part of light energy promptly diffuses in environment.The light of some small value apertures by transmission light exit facet 121 outgoing, or by reverberation exit facet 122 outgoing after being reflected by transmission light exit facet 121, diffuses in environment.The filtering of short-range cladding light can be realized by said process.
In addition, in above-mentioned concrete example, as shown in Figure 2, also can carry out polishing to the light scattering face 123 of large covering 120, and not carry out frosting treatment, the transmission direction of its transmission light is as shown in figure below in Fig. 3.Like this, large covering 120 can be made to have similar transmission conditions to fiber cladding 110, the transmission light that can retrain in fiber cladding 110 resumes defeated at large covering 120 relaying.Specifically, in this example, in the actual filtering process of fiber cladding light filter 100, after the transmission light in fiber cladding 110 touches large covering 120, constraints becomes large covering 120 from original fiber cladding 110.In transmitting procedure, owing to having carried out polishing with the light scattering face 123 of environmental exposure, therefore this part light energy cannot diffuse in environment, to configure the transmission light filtering ratio in required covering by configuration transmission light exit facet 121 and reverberation exit facet 122 with fiber cladding 110 area ratio.Further, the needs after allocation ratio are passed through transmission light exit facet 121 outgoing by the transmission light of the numerical aperture of filtering, or by reverberation exit facet 122 outgoing after being reflected by transmission light exit facet 121, diffuse in environment.Also namely, said process achieves the transmission light filtering process of configurable filtering ratio.
According to the fiber cladding light filter of the embodiment of the present invention, the large covering of its welding or bonding and former fiber cladding same material on original exposed fiber cladding, and the transmission light exit facet of large covering and reverberation exit facet have passed through the process such as polishing, polishing, the light scattering face of large covering have passed through frosting treatment.Therefore, this fiber cladding light filter can filtering laser transmission time cladding light power, power tolerance and the cladding light filtering efficiency of stripper can be improved significantly, in addition, the thermal effect that this fiber cladding light filter also can avoid matching materials to produce the absorption of transmission light.
The invention allows for a kind of formation method of fiber cladding light filter.
Fig. 4 is the flow chart of the formation method of fiber cladding light filter according to an embodiment of the invention.As shown in Figure 4, the formation method of fiber cladding light filter according to an embodiment of the invention, wherein, this fiber cladding light filter comprises fiber cladding and large covering, and the method comprises the following steps:
Step S401, the large covering of welding or bonding and fiber cladding same material on fiber cladding, large covering has transmission light exit facet, reverberation exit facet and light scattering face.Wherein, in one embodiment of the invention, the constituent material of fiber cladding and large covering is quartz, thus large covering is formed with fiber cladding be connected without the even of interface, the Fresnel reflection occurred on interface can be eliminated, also can eliminate the thermal effect that matching materials produces the absorption of light.And in another embodiment of the present invention, interface and the axle section shape of large covering can have any shape.
Step S402, polishes to transmission light exit facet, reverberation exit facet respectively, polishing to be to improve the transmission of transmission light exit facet and reverberation exit facet.Further, in one embodiment of the invention, also the angle of wedge suppressing interface Fresnel reflection is added to transmission light exit facet.In addition, also anti-reflection film is arranged to transmission light exit facet and reverberation exit facet, to increase its transmission.Specifically, as a concrete example, shown in composition graphs 1, give a kind of structural representation that significantly can shorten the fiber cladding light filter of filtering distance.The fibre core of optical fiber and fiber cladding form single cladded fiber that constraint laser signal is propagated jointly.Wherein, flashlight transmits in fibre core, and the flashlight overflowed on a small quantity transmits in fiber cladding with remaining pump light.Large covering is the cylinder quartz material covering of hollow, and itself and fiber cladding have identical material and characteristic.As shown in Figure 1, large covering and fiber cladding are integrally formed by the mode of high-temperature heating welding or the mode of bonding, the result obtained defines to be connected without the even of interface between fiber cladding and the large covering of introducing.It should be noted that, above-mentioned bonding pattern connection is generally applied to some low power field, can simplification of flowsheet.
In composition graphs 1 and Fig. 3 shown in upper figure, from a left side to the transmission direction being again laser (transmission light), and the transmission light exit facet of large covering is handled as follows: polished in this interface, polishing, in welding or bonding process, reduce the impact on this interface by certain technological means simultaneously, prevent surface roughness from reducing and subsiding.In addition, in one embodiment of the invention, also anti-reflection film can be set on transmission light exit facet.In other words, namely at the anti-reflection film of transmission light exit facet plating covering transmission light corresponding wavelength, to reach the object increasing transmission.
Further, reverberation exit facet is handled as follows: to be polished in this interface, polishing, in welding or bonding process, reduces the impact on this interface by certain technological means simultaneously, prevent surface roughness reduction and subside.In addition, also anti-reflection film can be set on reverberation exit facet.In other words, namely at the anti-reflection film of reverberation exit facet plating covering transmission light corresponding wavelength, to reach the object increasing transmission
Step S403, carries out frosting treatment to improve transmission light divergence speed to light scattering face.
Specifically, in the filtering process of reality, after the transmission light in fiber cladding contacts large covering, constraints becomes large covering by original fiber cladding.In transmitting procedure, because the light scattering face contacted with environment facies is by hacking, therefore this part light energy constantly diffuses in environment.Owing to eliminating the interface existed compared to traditional index matching stripper, therefore, can the transmission light in fiber cladding be guided enter in large covering in shorter distance and transmit.
And because light scattering face is by hacking, this part of light energy promptly diffuses in environment.The light of some small value apertures by the outgoing of transmission light exit facet, or by the outgoing of reverberation exit facet after being reflected by transmission light exit facet, diffuses in environment.The filtering of short-range cladding light can be realized by said process.
In addition, in above-mentioned concrete example, as shown in Figure 2, also can carry out polishing to the light scattering face of large covering, and not carry out frosting treatment, the transmission direction of its transmission light is as shown in figure below in Fig. 3.Like this, large covering and fiber cladding can be made to have similar transmission conditions, the transmission light that can retrain in fiber cladding resumes defeated at large covering relaying.Specifically, in this example, in actual filtering process, after the transmission light in fiber cladding touches large covering, constraints becomes large covering from original fiber cladding.In transmitting procedure, owing to having carried out polishing with the light scattering face of environmental exposure, therefore this part light energy cannot diffuse in environment, configures the transmission light filtering ratio in required covering by configuration transmission light exit facet and reverberation exit facet and fiber cladding area ratio.Further, the needs after allocation ratio are passed through the outgoing of transmission light exit facet by the transmission light of the numerical aperture of filtering, or by the outgoing of reverberation exit facet after being reflected by transmission light exit facet, diffuse in environment.Also namely, said process achieves the transmission light filtering process of configurable filtering ratio.
In addition, in certain embodiments, the method also comprises: directly cooled fiber cladding and large covering by servicing unit, wherein, servicing unit comprise can receiving optical fiber metal shell, emergent light relatively concentrate place arrange light absorbing material and cooling liquid.Further, by cooling liquid, metal shell is cooled to dissipate the heat that transmission light produces, also directly can be cooled optical fiber and large covering by cooling liquid, thus filtering ability can be improved.
According to the formation method of the fiber cladding light filter of the embodiment of the present invention, the large covering of welding and bonding and fiber cladding same material on fiber cladding, thus can be formed without interface filtering characteristic, eliminate the Fresnel reflection occurred on interface, and respectively to the process such as transmission light exit facet and reverberation exit facet is polished, polishing of large covering, to improve the transmission of transmission light exit facet and reverberation exit facet, and frosting treatment is carried out to improve transmission light divergence speed to the light scattering face of large covering.Therefore, the method can filtering laser transmission time cladding light power, power tolerance and the cladding light filtering efficiency of stripper can be improved significantly, in addition, the thermal effect that the method also can avoid matching materials to produce the absorption of transmission light.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a fiber cladding light filter, is characterized in that, comprising:
Exposed fiber cladding, obtains after divesting coat by optical fiber;
Large covering, described large covering to be set on described fiber cladding and to be integrally formed with described fiber cladding, described large covering has transmission light exit facet, reverberation exit facet and light scattering face, the transmission of described transmission light exit facet and described reverberation exit facet is greater than the transmission in described light scattering face, and described large covering is identical with the material of described fiber cladding.
2. fiber cladding light filter according to claim 1, is characterized in that, the constituent material of described fiber cladding and described large covering is quartz.
3. fiber cladding light filter according to claim 1, is characterized in that, described large covering also comprises the anti-reflection film be arranged on described transmission light exit facet.
4. a formation method for fiber cladding light filter, is characterized in that, said method comprising the steps of:
The large covering of welding or bonding and described fiber cladding same material on described fiber cladding, described large covering has transmission light exit facet, reverberation exit facet and light scattering face;
Respectively described transmission light exit facet, reverberation exit facet are polished, polishing to be to improve the transmission of described transmission light exit facet and described reverberation exit facet;
Frosting treatment is carried out to improve transmission light divergence speed to described light scattering face.
5. the formation method of fiber cladding light filter according to claim 4, is characterized in that, cross section and the axle section shape of described large covering can have any shape.
6. the formation method of fiber cladding light filter according to claim 4, is characterized in that, also comprise:
Described transmission light exit facet is added to the angle of wedge suppressing interface Fresnel reflection.
7. the formation method of fiber cladding light filter according to claim 4, is characterized in that, also comprise:
Anti-reflection film is arranged to described transmission light exit facet and described reverberation exit facet.
8. the formation method of fiber cladding light filter according to claim 4, is characterized in that, also comprise:
Directly cooled described fiber cladding and described large covering by servicing unit, wherein, described servicing unit comprises the metal shell of receiving optical fiber, light absorbing material and cooling liquid.
9. the formation method of fiber cladding light filter according to claim 8, is characterized in that, also comprise:
Described metal shell is cooled to dissipate the heat that transmission light produces.
10. the formation method of the fiber cladding light filter according to any one of claim 4-9, is characterized in that, the constituent material of described fiber cladding and described large covering is quartz.
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| CN107293931A (en) * | 2016-04-01 | 2017-10-24 | 中国兵器装备研究院 | A kind of cladding light dissipation device |
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| 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 |
| CN107293931A (en) * | 2016-04-01 | 2017-10-24 | 中国兵器装备研究院 | A kind of cladding light dissipation device |
| CN107359496A (en) * | 2016-04-01 | 2017-11-17 | 三菱电线工业株式会社 | Mode stripper constructs and constructed using the mode stripper transmission method of the laser carried out |
| CN107293931B (en) * | 2016-04-01 | 2019-07-26 | 中国兵器装备研究院 | A kind of cladding light dissipation device |
| CN108110597A (en) * | 2018-02-02 | 2018-06-01 | 迈岐光电科技(上海)有限公司 | A kind of bonding sapphire radiator structure part for high power optical fibre laser bundling device |
| CN108110597B (en) * | 2018-02-02 | 2024-01-26 | 迈岐光电科技(上海)有限公司 | Bonded sapphire heat dissipation structural member for high-power optical fiber laser beam combiner |
| CN108332680A (en) * | 2018-03-29 | 2018-07-27 | 安徽理工大学 | A kind of novel civil engineering structure deformation monitoring device based on film interference principle |
| 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 |
| CN114527534A (en) * | 2022-04-24 | 2022-05-24 | 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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