CN113866892A - Laser fiber coupler and manufacturing method - Google Patents
Laser fiber coupler and manufacturing method Download PDFInfo
- Publication number
- CN113866892A CN113866892A CN202111093975.XA CN202111093975A CN113866892A CN 113866892 A CN113866892 A CN 113866892A CN 202111093975 A CN202111093975 A CN 202111093975A CN 113866892 A CN113866892 A CN 113866892A
- Authority
- CN
- China
- Prior art keywords
- receiving
- laser
- input
- assembly
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
- G02B6/26—Optical coupling means
- G02B6/262—Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention provides a laser fiber coupler and a manufacturing method thereof, wherein the laser fiber coupler comprises: an output assembly including a plurality of input optical fibers, each of the input optical fibers having an output member formed at one end of the output assembly, the laser signals transmitted by the plurality of input optical fibers being output through the output member; the receiving component is provided with a receiving optical fiber penetrating through the receiving component at the axis, a receiving component is formed at one end of the receiving optical fiber, the receiving component is arranged opposite to the output component, and the receiving component receives the laser signal through the receiving component; a securing assembly for securing and axially aligning the output member and the receiving member, the securing assembly being located radially outward of the output assembly and the receiving assembly. According to the laser fiber coupler provided by the invention, the size of the fiber core of the fiber is kept unchanged, and multi-light-path beam shaping is carried out through the physical laser beam shrinkage and the double-reflection fiber microstructure, so that the beam quality is improved.
Description
Technical Field
The invention relates to the technical field of laser synthesis, in particular to a laser fiber coupler and a manufacturing method thereof.
Background
The development process of the laser synthesis technology is almost synchronous with the development of the laser technology, and the laser synthesis technology can be applied to the existing laser products of different generations. In recent years, breakthrough progress is made around the research in key fields of unit laser performance, beam shaping, beam coupling and the like, and the laser synthesis technology is continuously promoted to climb a new peak. The laser time sequence synthesis technology is an effective approach, the laser time sequence synthesis technology has fewer products in feasible application in optical fiber laser synthesis, the technical program system is complex, and how to miniaturize and engineer the laser time sequence synthesis technology still needs to be explored.
The mode field diameter is a parameter for measuring the effective transmission range of laser signals in the optical fiber, and the larger the mode field diameter of the optical fiber is, the higher the laser coupling efficiency is. The improved fiber beam coupling efficiency can be realized by changing the fiber mode field diameter and the fiber beam convergence. The fusion beam expansion is usually carried out on the optical fiber by changing the diameter of the mode field of the optical fiber, the deformation of the fiber core of the optical fiber is carried out, and the laser coupling efficiency is improved. The fiber beam convergence mode is to perform micro-processing on the end of the fiber pigtail, which is equivalent to beam shaping at the end of the fiber pigtail.
In the prior art, a composite laser beam pulse time sequence synthesis device is provided, wherein a polarization time sequence synthesis technology and a spectrum synthesis technology are combined, and the crosstalk problem of grating spectrum synthesis is solved. However, the space coupling building system is adopted, the light beam coupling efficiency is low, and the whole system is not beneficial to engineering.
Disclosure of Invention
The embodiment of the invention provides a laser fiber coupler and a manufacturing method thereof, which are used for improving the average output power and the repetition frequency of single-beam fiber laser synthesis and improving the beam quality of single-beam fiber laser synthesis output laser.
The embodiment of the invention provides a laser fiber coupler, which comprises:
an input assembly including a plurality of input optical fibers, each of the input optical fibers having an input member formed at one end thereof, the input member outputting laser signals transmitted by the plurality of input optical fibers;
the receiving component is provided with a receiving optical fiber penetrating through the receiving component at the axis, a receiving component is formed at one end of the receiving optical fiber, the receiving component is arranged opposite to the input component, and the receiving component receives the laser signal through the receiving component;
a securing assembly for securing and axially aligning the input member and the receiving member, the securing assembly being located radially outward of the input assembly and the receiving assembly.
According to the laser fiber coupler provided by the embodiment of the invention, the size of the fiber core of the fiber is kept unchanged, multi-path beam shaping is carried out through the physical laser beam shrinkage and the double-reflection fiber microstructure, multi-path pulse laser is efficiently coupled, the average output power and the repetition frequency of the single-beam fiber laser synthesis are effectively improved, and the beam quality is improved.
According to some embodiments of the invention, the input member is an external conical structure.
In some embodiments of the invention, the receiving member is an internal conical cylindrical structure.
According to some embodiments of the present invention, the inner tapered bottom surface of the receiving member has a receiving plane perpendicular to a fiber transmission direction, the receiving plane receives the laser signals transmitted from the input fibers located at the radial center position among the plurality of input fibers, the annular region of the bottom surface of the receiving member receives the laser signals from the input fibers located at the radial center position among the plurality of input fibers, the inner surface of the receiving member is coated with a surface coating in a region other than the receiving plane and the outer surface is coated with a surface coating in a region other than the annular region, so that the laser signals received by the annular region are transmitted in the receiving member in a form of total reflection.
In some embodiments of the invention, the outer surface of the receiving member has an inner taper angle ≧ 90 °, and the inner surface of the receiving member has an inner taper angle ≧ 90 °.
According to some embodiments of the invention, the outer surface of the cross-section of the fixation assembly is polygonal and the inner surface is circular.
In some embodiments of the present invention, the fixing assembly includes, in the axial direction, an alignment member provided at a middle portion in the axial direction of the fixing assembly, and fixing members located at both end portions in the axial direction of the fixing assembly.
According to some embodiments of the invention, the alignment member is cylindrical and the fixing member is conical cylindrical.
In some embodiments of the present invention, the laser fiber coupler further comprises a packaging member located radially outside the fixing member.
The manufacturing method of the laser fiber coupler provided by the embodiment of the invention is used for manufacturing the laser fiber coupler provided by some embodiments of the invention, and comprises the following steps:
melting and expanding the cores of a plurality of input optical fibers, applying a melting taper to the input optical fibers of the melted and expanded cores, cutting one end of each input optical fiber according to a preset angle, and etching the cut end face of each input optical fiber to form an outer conical structure;
melting and expanding the core of one end of the receiving optical fiber, cutting the position with the largest diameter of the core expanded fiber core of the receiving optical fiber, and etching the cut end face of the receiving optical fiber to form an inner conical structure;
forming the fixing component with a bidirectional cone region structure by melting and tapering a capillary quartz glass tube with a polygonal outer surface and a circular inner surface;
axially aligning and securing the input member and the receiving member by the securing assembly;
and the fixing component is arranged in the packaging component, and ultraviolet epoxy resin glue is filled in a gap between the contact positions of the fixing component and the packaging component.
The laser fiber coupler manufacturing method provided by the embodiment of the invention has the advantages that the laser fiber coupler which is beneficial to laser beam combination output and improves the output average power and the output repetition frequency is obtained by a simple manufacturing method, and meanwhile, the miniaturization of the fiber laser based on the laser time sequence synthesis technology is realized by the step of the optimized space structure design, and the practicability of the fiber laser based on the laser time sequence synthesis technology is improved.
Drawings
FIG. 1 is a schematic structural diagram of a laser fiber coupler according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an input module of a laser fiber coupler according to an embodiment of the present invention;
FIG. 3 is a side view of an input fiber and input member of a laser fiber coupler according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a receiving assembly of a laser fiber coupler according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a receiving assembly of a laser fiber coupler after completion of the fused core expansion in step S200 according to an embodiment of the present invention;
FIG. 6 is a side view of a receiving member of a laser fiber coupler according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a fixing assembly of a laser fiber coupler according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a mounting assembly of a laser fiber coupler according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of the alignment of the input and receiving components of a laser fiber coupler according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a fixing member of a laser fiber coupler according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of another form of a fixing member of a laser fiber coupler according to an embodiment of the present invention.
FIG. 12 is a schematic flow chart of a method for fabricating a laser fiber coupler with a protective member according to an embodiment of the present invention;
reference numerals:
The input assembly 1, the input fiber 11, the input member 12, the laser signal a,
a receiving assembly 2, a receiving fiber 21, a receiving member 22, a receiving plane 23, a core-expanding core 24, an annular region 25,
The package assembly 4 is provided with a plurality of semiconductor chips,
the coating layer (5) is applied to the substrate,
a cladding layer 6.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.
In the related technology of the laser coupler applying the time sequence synthesis technology, the laser time sequence synthesis technology is an effective way of the laser synthesis technology, the laser time sequence synthesis technology has fewer feasible application products in the optical fiber laser synthesis, the technical program system is complex, and the problem of how to miniaturize and engineer the laser time sequence synthesis technology is still solved.
The present invention is directed to solve the above technical problems to a certain extent, and provides a laser fiber coupler 100 and a manufacturing method thereof, so as to improve the average output power and repetition frequency of single-beam fiber laser synthesis and improve the beam quality.
As shown in fig. 1 to 8, a laser fiber coupler 100 according to an embodiment of the present invention includes: an input assembly 1, a receiving assembly 2 and a fixing assembly 3. The input assembly 1 comprises a plurality of input optical fibers 11, each input optical fiber 11 is provided with an input member 12 at one end of the input assembly 1, laser signals A transmitted by the input optical fibers 11 are output through the input member 12, a receiving optical fiber 21 penetrating through the receiving assembly 2 is arranged at the axis of the receiving assembly 2, a receiving member 22 is formed at one end of the receiving optical fiber 21, the receiving member 22 is arranged opposite to the input member 12, the receiving assembly 2 receives the laser signals A through the receiving member 22, the fixing assembly 3 is used for fixing and axially aligning the input member 12 and the receiving member 22, and the fixing assembly 3 is located on the radial outer side of the input assembly 1 and the receiving assembly 2.
According to the laser fiber coupler 100 provided by the embodiment of the invention, the fiber core size of the fiber is kept unchanged, multi-path beam shaping is carried out through the physical laser beam shrinkage and the double-reflection fiber microstructure, multi-path pulse laser is efficiently coupled, the average output power and the repetition frequency of the single-beam fiber laser synthesis are effectively improved, and the beam quality is improved.
In some embodiments of the present invention, as shown in fig. 4 and 5, the receiving member 22 is an internal conical cylindrical structure through which the integrated double reflecting optical fiber microstructure is formed.
According to some embodiments of the present invention, the input member 12 is an external conical structure, the external conical structure mainly corresponds to an internal conical structure, and laser beam-shrinking coupling is performed through the external conical structure and the internal conical structure corresponding to the tapered signal optical fiber beam-combining structure, so that the spatial coupling efficiency of the signal laser can be effectively improved, and sufficient superposition coupling of power and frequency is facilitated.
As shown in fig. 2, 3 and 6, according to some embodiments of the present invention, the inner tapered bottom surface of the receiving member 22 has a receiving plane 23 perpendicular to the optical fiber transmission direction, the receiving plane 23 receives the laser signal a emitted from the input optical fiber 11 located at the radial center position among the plurality of input optical fibers, the annular region 25 of the bottom surface of the receiving member 22 receives the laser signals a of the input optical fibers 11 except the input optical fiber 11 located at the radial center position among the plurality of input optical fibers 11, the inner surface of the receiving member 22 is coated with a surface coating film at the region except the receiving plane 23 and the outer surface at the region except the annular region 25, so that the laser signal a received by the annular region 25 is transmitted in the receiving member 22 in the form of total reflection.
Specifically, the receiving plane 23 is used for transmitting the laser signal a output from the central input fiber 11 after the outer tapered signal fiber beam combination structure is shrunk, and the laser signals a output from the other input fibers 11 are received by the annular region 25 and then transmitted in the receiving member 22 in the form of total reflection.
As shown in FIGS. 4 and 5, in some embodiments of the present invention, the outer surface of the receiving member 22 has an inner taper angle of 90 degrees or less, the inner surface of the receiving member 22 has an inner taper angle of 90 degrees or more, and the inner and outer taper angles are designed to satisfy the requirement that the laser light forms total reflection on the inner and outer surfaces of the inner tapered structure, thereby reducing the end-face laser coupling loss as much as possible.
As shown in fig. 7 and 8, according to some embodiments of the present invention, the outer surface of the cross section of the fixing member 3 is a polygonal inner surface and is circular, and since the input optical fibers 11 of the input member 1 are arranged to present an approximately polygonal cross-sectional shape as a whole, the fixing member 3 having a polygonal outer surface with a corresponding number of sides can be used to precisely align and fix the two structure groups by using a microscope.
It is worth mentioning that by means of the fixing assembly 3, the input member 12 of the input assembly 1 can be aligned with the receiving member 22 of the receiving assembly 2 as shown in fig. 9 (the fixing assembly 3 is not shown), achieving a more precise laser coupling.
As shown in fig. 7 and 8, in some embodiments of the present invention, the fixing component 3 includes an alignment member 31 and a fixing member 32 in the axial direction, the alignment member 31 is provided at the middle of the fixing component 3 in the axial direction, and the fixing members 32 are located at both end portions of the fixing component 3 in the axial direction.
As shown in fig. 7 and 8, according to some embodiments of the present invention, the aligning member 31 has a cylindrical shape, and the fixing member 32 has a conical cylindrical shape, and by the cylindrical shape and the conical cylindrical shape, through the deformation of the conical region, it is possible to naturally fix the two structures and form the protection structure.
As shown in fig. 10 and 11, in some embodiments of the present invention, the laser fiber coupler further includes a packing member 4, and the packing member 4 is located radially outside the fixing member 3. Note that the package 4 having the same height as the inner groove as shown in fig. 10 may be used, or the package 4 having a step in the inner groove as shown in fig. 5 may be used, and the step allows the outer shape of the protection package to be more favorably attached, thereby achieving a more favorable fixing and sealing function.
The method for manufacturing a laser fiber coupler according to an embodiment of the present invention is characterized in that the method is used for manufacturing a laser fiber coupler 100 according to some embodiments of the present invention, and as shown in fig. 12, the method includes:
s100: and melting and expanding the cores of the plurality of input optical fibers, applying a melting tapering to the input optical fibers of the melted and expanded cores, cutting one end of each input optical fiber according to a preset angle, and etching the cut end face of each input optical fiber to form an outer conical structure.
S200: and melting and expanding the core of one end of the receiving optical fiber, cutting the position with the largest diameter of the core expanded fiber core of the receiving optical fiber, and etching the cut end face of the receiving optical fiber to form an inner conical structure.
S300: and (3) tapering the capillary quartz glass tube with the outer surface of a polygon and the inner surface of a circular cross section through melting to form a fixed assembly with a bidirectional tapered zone structure.
S400: axially aligning and securing the input member and the receiving member by the securing assembly;
s500: the fixing member is fitted into the package member, and an ultraviolet epoxy resin paste is filled in a gap between the fixing member and a position where the package member is in contact.
The laser fiber coupler manufacturing method of the embodiment of the invention obtains the laser fiber coupler 100 which is beneficial to laser beam combination output and improves the output average power and the repetition frequency by a simple manufacturing method, and simultaneously, the step of designing by an optimized space structure is beneficial to realizing miniaturization of the fiber laser based on the laser time sequence synthesis technology and improving the practicability of the fiber laser based on the laser time sequence synthesis technology.
To further explain the technical means and effects of the present invention to achieve the intended purpose, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 8, the present invention provides a laser fiber coupler 100, which facilitates laser time sequence synthesis and sequential stacking to change power and frequency, and facilitates engineering process of laser time sequence synthesis technology. The specific scheme is as follows: a laser fiber coupler 100, comprising: the optical module comprises an outer conical signal optical fiber beam combining structure (namely the input assembly 1), an inner conical core-expanding optical fiber structure (namely the receiving assembly), a multi-dimensional adjustable alignment fixing structure (namely the fixing assembly 3) and an optical module packaging structure (namely the packaging assembly 4). The method is characterized in that: the outer conical signal optical fiber beam combining structure is formed by micromachining N double-clad signal optical fiber core-expanding fusion cutting fiber core conical structures; the inner conical core-expanding optical fiber structure is formed by melting and expanding a single passive double-clad signal optical fiber, cutting and then carrying out conical shaping on the end face of the core-expanding optical fiber; the multidimensional adjustable alignment fixing structure is used for accurately aligning and fixing the outer conical signal optical fiber beam combination structure and the inner conical core-expanding optical fiber structure in a space coupling manner; the optical module package structure protects the overall optical module structure outside the multi-dimensional adjustable alignment fixture structure.
As shown in fig. 2 and 3, the outer tapered signal optical fiber beam combining structure is formed by performing fusion core expansion, bundle fusion taper cutting, and micromachining of each core tapered structure on the end surface of the fiber beam waist beam on a plurality of signal optical fibers (i.e. the input optical fiber 11), wherein the diameters of the cores of the plurality of signal optical fibers are as follows: 10um-30um, the outer conical signal optical fiber beam combination structure formed is characterized in that due to the fact that a plurality of signal optical fiber cores are fused and expanded, and then the optical fiber beam combination is fused and tapered, the signal optical fiber cores in the center of the fused tapering process are not deformed through the expanding-shrinking process method, and signal laser transmission insertion loss is reduced. And cutting the position of the waist beam in the tapered area of the optical fiber bundle after fused tapering, wherein the cutting angle is set to be 0 degree. And (3) performing outer cone structure micromachining on the N fiber core end surfaces in the fiber bundle waist bundle end surfaces by applying a femtosecond laser etching technology after cutting to form an outer cone group structure (namely the input member 12). The fiber core is micro-processed into an outer conical structure which mainly corresponds to an inner conical core-expanding optical fiber structure, and the core is subjected to laser beam-shrinking coupling through a conical group corresponding to the conical signal optical fiber beam-combining structure, so that the signal laser space coupling efficiency can be effectively improved, and the full superposition coupling of power and frequency is facilitated.
As shown in fig. 4 and 5, the inner tapered core-expanding optical fiber structure is formed by applying long-wavelength-band laser to 1 large-core-diameter signal optical fiber (i.e., the receiving optical fiber 21) for long-time irradiation, melting and expanding the core of the signal optical fiber, and then cutting the signal optical fiber at the position where the diameter of the core-expanding optical fiber core 24 is the maximum, so that the diameter of the core-expanding optical fiber core 24 is increased, the diameter of the mode field is increased, and the coupling efficiency is improved. After cutting, the femtosecond laser etching technology is applied to etch and remove the inner and outer cladding layers 6 in the end surface of the large-core-diameter signal optical fiber and micromachine the fiber core into an inner and outer inner conical structure (namely the receiving member 22), the inner conical angle of the outer surface is less than or equal to 90 degrees, the inner conical angle of the inner surface is more than or equal to 90 degrees, the inner and outer conical angles are designed to meet the requirement that laser forms total reflection on the inner and outer surfaces of the inner conical structure, and the end surface laser coupling loss is reduced as much as possible. The end surface is flat and has no burr. The inner cone bottom surface of the inner cone structure is a small plane vertical to the optical fiber transmission direction, the plane is not coated with a film, and the plane is used for transmitting laser output by the central signal optical fiber after the outer cone signal optical fiber beam combining structure is shrunk. The inner and outer surfaces of the inner cone structure are coated with films for enhancing the reflectivity and the thermal conductivity of the inner and outer surfaces of the inner cone structure. The formed integrated double-reflection optical fiber microstructure forms an inner conical core-expanding optical fiber structure, and signal laser is sequentially and orderly coupled into the output signal optical fiber through the double-reflection optical fiber microstructure, so that single-fiber laser time sequence synthesis is favorably realized. The diameter of the large-core-diameter signal optical fiber core is as follows: 25-35um, the diameter of the large-core-diameter signal optical fiber core is expanded: not less than 300 um.
As shown in fig. 7 and 8, the multi-dimensional adjustable alignment fixing structure is formed by using a fluorine-doped capillary quartz glass tube with an outer hexagon and an inner circle, tapering through melting, and cutting a waist beam. This multi-dimensional adjustable alignment fixed knot constructs in order to fix and aim at outer toper signal optical fiber beam combining structure and toper core-expanding optical fiber structure, through the deformation of capillary glass tube cone, can be with two structures nature fixed and form protection architecture, because outer toper signal optical fiber beam combining structure optical fiber bundle arranges to be regular hexagon compact structure, two structure groups are aimed at and fixed to outer hexagon structure sideline that can be accurate through the microscope. The inner diameter of the fluorine-doped capillary quartz glass tube with the outer hexagon and the inner circle is 700-2000 um, the outer diameter of the fluorine-doped capillary quartz glass tube with the outer hexagon is 900-2400 um, and the inner diameter of the capillary glass tube with the middle waist beam position (namely the alignment member 31) is formed after the fluorine-doped capillary quartz glass tube with the outer hexagon and the inner circle is fused and tapered: not less than 300 um.
The optical module packaging structure is characterized in that a pure quartz capillary quartz groove with high thermal conductivity is used for protecting an integral fixed structure to form an optical module, the left fixed position and the right fixed position are respectively in a trapezoidal structure matched with a multi-dimensional adjustable alignment fixed structure outer hexagonal structure, and the stability of an integral device is improved. Inner diameter of the pure quartz capillary quartz groove: 1100um-2700um, outer diameter of quartz capillary groove: 1400um-3000 um.
While the invention has been described in connection with specific embodiments thereof, it is to be understood that it is intended by the appended drawings and description that the invention may be embodied in other specific forms without departing from the spirit or scope of the invention.
Claims (10)
1. A laser fiber coupler, comprising:
an input assembly including a plurality of input optical fibers, each of the input optical fibers having an input member formed at one end thereof, the input member outputting laser signals transmitted by the plurality of input optical fibers;
the receiving component is provided with a receiving optical fiber penetrating through the receiving component at the axis, a receiving component is formed at one end of the receiving optical fiber, the receiving component is arranged opposite to the input component, and the receiving component receives the laser signal through the receiving component;
a securing assembly for securing and axially aligning the input member and the receiving member, the securing assembly being located radially outward of the input assembly and the receiving assembly.
2. The laser fiber coupler of claim 1, wherein the input member is an outer conical structure.
3. The laser fiber coupler of claim 1, wherein the receiving member is an internal conical cylindrical structure.
4. The laser fiber coupler of claim 3, wherein the inner tapered bottom surface of the receiving member has a receiving plane perpendicular to the fiber transmission direction, the receiving plane receives the laser signals transmitted from the input fibers located at the radial center position among the plurality of input fibers, the annular region of the bottom surface of the receiving member receives the laser signals from the input fibers except the input fibers located at the radial center position among the plurality of input fibers, the inner surface of the receiving member is coated with a surface coating film at the region except the receiving plane and the outer surface at the region except the annular region, so that the laser signals received by the annular region are transmitted in the form of total reflection in the receiving member.
5. The laser fiber coupler of claim 3, wherein the outer surface inner taper angle of the receiving member is no less than 90 °, and the inner surface inner taper angle of the receiving member is no less than 90 °.
6. The laser fiber coupler of claim 1, wherein the outer surface of the fixing member in cross section is polygonal and the inner surface is circular.
7. The laser fiber coupler according to claim 6, wherein the fixing assembly includes an alignment member and a fixing member in an axial direction, the alignment member being provided at a middle portion in the axial direction of the fixing assembly, the fixing member being located at both end portions in the axial direction of the fixing assembly.
8. The laser fiber coupler of claim 7, wherein the alignment member is cylindrical and the fixing member is conical cylindrical.
9. The laser fiber coupler of any of claims 1-8, further comprising a packaging assembly located radially outward of the stationary assembly.
10. A method for manufacturing a laser fiber coupler, the method being used for manufacturing a laser fiber coupler according to any one of claims 1 to 9, the method comprising:
melting and expanding the cores of a plurality of input optical fibers, applying a melting taper to the input optical fibers of the melted and expanded cores, cutting one end of each input optical fiber according to a preset angle, and etching the cut end face of each input optical fiber to form an outer conical structure;
melting and expanding the core of one end of the receiving optical fiber, cutting the position with the largest diameter of the core expanded fiber core of the receiving optical fiber, and etching the cut end face of the receiving optical fiber to form an inner conical structure;
forming the fixing component with a bidirectional cone region structure by melting and tapering a capillary quartz glass tube with a polygonal outer surface and a circular inner surface;
axially aligning and securing the input member and the receiving member by the securing assembly;
and the fixing component is arranged in the packaging component, and ultraviolet epoxy resin glue is filled in a gap between the contact positions of the fixing component and the packaging component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093975.XA CN113866892B (en) | 2021-09-17 | 2021-09-17 | Laser fiber coupler and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111093975.XA CN113866892B (en) | 2021-09-17 | 2021-09-17 | Laser fiber coupler and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113866892A true CN113866892A (en) | 2021-12-31 |
| CN113866892B CN113866892B (en) | 2023-06-23 |
Family
ID=78996509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111093975.XA Active CN113866892B (en) | 2021-09-17 | 2021-09-17 | Laser fiber coupler and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113866892B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114488400A (en) * | 2022-02-19 | 2022-05-13 | 中红外激光研究院(江苏)有限公司 | High-brightness optical fiber beam combiner based on evanescent wave coupling and preparation method thereof |
| CN115201967A (en) * | 2022-06-08 | 2022-10-18 | 中国电子科技集团公司第十一研究所 | Reverse optical fiber coupler |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1499359A (en) * | 1975-12-23 | 1978-02-01 | Standard Telephones Cables Ltd | Optical fibre connectors |
| CN2630875Y (en) * | 2003-07-24 | 2004-08-04 | 同济大学 | 1 to n conical optical fiber connector |
| CN1584647A (en) * | 2004-05-25 | 2005-02-23 | 长春理工大学 | Hollow circular truncated cone laser optical fibre coupler |
| US20130156387A1 (en) * | 2011-06-24 | 2013-06-20 | Go!Foton Holdings, Inc. | Termination assembly for optical fibers |
| CN103728696A (en) * | 2014-01-14 | 2014-04-16 | 北京航空航天大学 | 1*N optical fiber coupler |
| CN203858386U (en) * | 2014-05-26 | 2014-10-01 | 山东海富光子科技股份有限公司 | (N+1)*1 optical fiber end surface pumping combiner based on optical fiber corrosion |
| KR20160009149A (en) * | 2014-07-15 | 2016-01-26 | 옵토파워주식회사 | solar light combiner |
| US20170194760A1 (en) * | 2015-12-31 | 2017-07-06 | Nlight, Inc. | Fiber pump combiner |
-
2021
- 2021-09-17 CN CN202111093975.XA patent/CN113866892B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1499359A (en) * | 1975-12-23 | 1978-02-01 | Standard Telephones Cables Ltd | Optical fibre connectors |
| CN2630875Y (en) * | 2003-07-24 | 2004-08-04 | 同济大学 | 1 to n conical optical fiber connector |
| CN1584647A (en) * | 2004-05-25 | 2005-02-23 | 长春理工大学 | Hollow circular truncated cone laser optical fibre coupler |
| US20130156387A1 (en) * | 2011-06-24 | 2013-06-20 | Go!Foton Holdings, Inc. | Termination assembly for optical fibers |
| CN103728696A (en) * | 2014-01-14 | 2014-04-16 | 北京航空航天大学 | 1*N optical fiber coupler |
| CN203858386U (en) * | 2014-05-26 | 2014-10-01 | 山东海富光子科技股份有限公司 | (N+1)*1 optical fiber end surface pumping combiner based on optical fiber corrosion |
| KR20160009149A (en) * | 2014-07-15 | 2016-01-26 | 옵토파워주식회사 | solar light combiner |
| US20170194760A1 (en) * | 2015-12-31 | 2017-07-06 | Nlight, Inc. | Fiber pump combiner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114488400A (en) * | 2022-02-19 | 2022-05-13 | 中红外激光研究院(江苏)有限公司 | High-brightness optical fiber beam combiner based on evanescent wave coupling and preparation method thereof |
| CN114488400B (en) * | 2022-02-19 | 2023-01-24 | 中红外激光研究院(江苏)有限公司 | High-brightness optical fiber beam combiner based on evanescent wave coupling and preparation method thereof |
| CN115201967A (en) * | 2022-06-08 | 2022-10-18 | 中国电子科技集团公司第十一研究所 | Reverse optical fiber coupler |
| CN115201967B (en) * | 2022-06-08 | 2023-06-23 | 中国电子科技集团公司第十一研究所 | Reverse optical fiber coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113866892B (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10761271B2 (en) | Polarization maintaining optical fiber array | |
| CN113866892B (en) | Laser fiber coupler and manufacturing method thereof | |
| US7419308B2 (en) | Fiber bundle termination with reduced fiber-to-fiber pitch | |
| KR0171844B1 (en) | Optical connector using ball lens and producing process thereof | |
| US6963682B2 (en) | Beam altering fiber lens device and method of manufacture | |
| CN108549128B (en) | Hollow anti-resonance photonic crystal fiber coupler and application thereof | |
| US20190049657A1 (en) | Passive aligning optical coupler array | |
| CN1650207A (en) | Beam bending apparatus and method of manufacture | |
| CN105633779A (en) | Optical fiber end face pumping coupler for optical fiber amplifier and fabrication method of optical fiber end face pumping coupler | |
| CN109061801B (en) | High-power signal beam combiner and manufacturing method thereof | |
| CN108780190A (en) | Fiber pump combiner | |
| US9229170B1 (en) | Two-port optical devices using mini-collimators | |
| EP3441805B1 (en) | Lens-attached optical fiber and optical coupler | |
| US20040156585A1 (en) | Lensed fiber for optical interconnections | |
| US20040151431A1 (en) | Lensed fiber having small form factor and method of making the same | |
| WO2004010115A1 (en) | Flowcell in a ferrule and method of sealing | |
| CN203561768U (en) | Optical collimator | |
| US11966091B2 (en) | Multichannel optical coupler array | |
| CN115698796A (en) | Optical fiber connection structure | |
| CN113937600B (en) | Signal optical fiber coupler and manufacturing method thereof | |
| CN115201967B (en) | Reverse optical fiber coupler | |
| CN105785509B (en) | A kind of optical fibre mode converter and preparation method thereof | |
| CN115128740B (en) | Signal beam combiner, laser and manufacturing method of signal beam combiner | |
| CN112987199B (en) | High-power laser beam combining and laser beam combining production method | |
| CN215180998U (en) | High-power multi-core tail fiber and collimator thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |