CN211688828U - Multi-optical fiber side fusion beam combining device - Google Patents
Multi-optical fiber side fusion beam combining device Download PDFInfo
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- CN211688828U CN211688828U CN201922307595.6U CN201922307595U CN211688828U CN 211688828 U CN211688828 U CN 211688828U CN 201922307595 U CN201922307595 U CN 201922307595U CN 211688828 U CN211688828 U CN 211688828U
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Abstract
The invention discloses a multi-optical fiber side surface melting and beam combining device which comprises a chuck, a heating furnace and a take-up reel, wherein the heating furnace is arranged under the chuck, and the take-up reel is arranged under a second ultraviolet curing device; the chuck comprises a chuck main structure and a gripper; the number of the grippers is at least two; the chuck main structure is a rotating structure; the hand grip is arranged on the chuck main structure. The invention has the advantages that the fused beam-combining optical fibers eliminate air gaps among the optical fibers which are attached together at the sides in the prior art, so that the coupling efficiency is higher when the beam-combining optical fibers are coupled; the active optical fiber and the pumping optical fiber are integrated, so that the output of high-power laser can be realized, and bidirectional pumping can be realized; the (N + M) type composite function optical fiber (N is the number of the pumping optical fibers, N is more than or equal to 1, M is the number of the gain optical fibers, M is more than or equal to 1) can be manufactured, and the prepared composite function optical fiber can be applied to high-power optical fiber devices.
Description
Technical Field
The utility model relates to an optical fiber device, especially a many optical fiber side fusion closes and restraints device.
Background
When the existing optical fiber drawing tower draws an optical fiber preform, one preform is basically drawn fixedly, if a large amount of drawn optical fibers are required to be manufactured, a long time is required for manufacturing, and a large amount of cost is required; when the traditional side optical fiber beam combining device is used for manufacturing the beam combining optical fiber, the operation is complex, the process requirement is high, and the stability of the manufactured beam combining optical fiber is not high.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: aiming at the existing problems, the multi-optical fiber side surface fusion beam combining device is provided, which can simultaneously perform wire drawing on a plurality of optical fiber preforms to prepare the (N + M) type composite functional optical fiber with high stability and high coupling efficiency (N is the number of pumping optical fibers, N is more than or equal to 1, M is the number of gain optical fibers, and M is more than or equal to 1).
The utility model adopts the technical scheme as follows:
a multi-optical-fiber side fusion beam combining device comprises a chuck, a heating furnace, a coating device, an ultraviolet curing device and a take-up reel, wherein the heating furnace is arranged under the chuck, and the chuck comprises a chuck main structure and a hand grip; the gripper is arranged on the chuck main structure; the number of the grippers is at least two; the chuck main structure is a rotating structure.
The traditional optical fiber drawing tower only draws one optical fiber preform independently, has long manufacturing time and only draws the optical fiber independently. The utility model discloses a set up rotatable chuck to set up a plurality of fixed optical fiber perform's tongs on the chuck, not only can carry out wire drawing simultaneously to many optical fiber perform simultaneously, can also carry out the side with the optic fibre that the drawing came out and fuse and restraint.
The chuck main structure further comprises an inner ring layer and an outer ring layer; the outer ring layer is wrapped around the inner ring layer; the inner ring layer and the outer ring layer are both provided with at least one hand grip.
The inner ring layer and the outer ring layer of the main disc structure are arranged, so that the position of the optical fiber preform rod for drawing can be controlled.
Further, the inner ring layer is arranged at the center of the chuck main structure.
Furthermore, when the number of the outer ring layer grippers is two or more, the grippers are uniformly arranged around the inner ring layer.
It is possible to realize uniform arrangement of the melted optical fibers when the drawn optical fibers are side-melted after being drawn.
Furthermore, the hand grips are triangular hand grips or four-corner hand grips.
Furthermore, the heating furnace is a graphene heating furnace, a laser heating furnace or an oxyhydrogen flame heating furnace.
It is only necessary that the temperature at the location where the fiber is heated be able to reach the temperature at which the fiber melts so that the fiber can melt.
Further, the chuck main structure is a cylindrical structure.
Furthermore, a coating device and a curing device are arranged below the heating furnace.
And a coating device and a curing device are added to coat and cure the optical fiber after fusion and beam combination.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a many optical fiber side fusion beam combining device can rotate the chuck main structure simultaneously in active optical fiber and pump optical fiber's of preparation for active optical fiber and pump optical fiber winding are in the same place, and the beam combining optical fiber that is in the same place to the winding carries out high temperature melting, and beam combining optical fiber through the melting is in the same place has eliminated because of the air gap between the optic fibre of the laminating of prior art side together, makes when beam combining optical fiber coupling, and coupling efficiency is higher.
2. The utility model discloses a many optical fiber side melting beam combining device, the melting of preparing closes the beam combining region of restrainting optic fibre and can infinitely prolong, and the melting of preparation closes and restraints optic fibre both ends for detached optic fibre, with active optical fibre and pumping optic fibre integration, can realize the output of high power laser to can realize two-way pumping.
3. Adopt the utility model discloses a chuck of isostructure can produce (N + M) type complex function optic fibre (N is pumping optic fibre quantity, and N is more than or equal to 1; M is gain fine quantity, and M is more than or equal to 1) for the coupling efficiency of the complex function optic fibre that prepares increases, and the complex function optic fibre that prepares can apply to and use in high-power optical fiber device.
Drawings
FIG. 1(a) is a side fusion-splicing apparatus for (1+1) -type multi-fiber high-speed rotary drawing
FIG. 1(b) is a side fusion-splicing device for (8+1) -type multi-fiber high-speed rotary drawing
FIG. 2 is a schematic view of the surface structure of a (1+1) -type chuck
FIG. 3 is a schematic view of the surface structure of a (8+1) -type chuck
FIG. 4 is a schematic view of a (1+1) -type composite functional optical fiber structure
FIG. 5 is a schematic side view of a nearly (1+1) -type complex function fiber contact
FIG. 6 is a schematic diagram showing the side structure of the contact between the large-core optical fiber and the small-core optical fiber
FIG. 7 is a schematic cross-sectional view of a (1+1) -type composite functional optical fiber
FIG. 8 is a cross-sectional view of a (2+1) -type composite functional optical fiber
FIG. 9 is a schematic cross-sectional view of a (8+1) -type composite functional optical fiber
The labels in the figure are: 1. an inner ring layer; 2. an outer race layer; 11. an active optical fiber; 12. a pump fiber; 13. a refractive index coating layer; 14. a protective coating; 50. a chuck; 51. a tenth gripper; 52. an eleventh gripper; 61. A first gripper; 62. a second gripper; 63. a third gripper; 64. a fourth gripper; 65. a fifth gripper; 66. a sixth hand grip; 67. a seventh gripper; 68. an eighth hand grip; 69. a ninth gripper; 71. pumping the optical fiber preform; 72. an active optical fiber preform; 73. heating furnace; 74. a coating of material; 75. a coating device; 76. a curing device; 77. coating the material for the second time; 78. a take-up reel.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Implementation scheme one
The embodiment discloses a multi-optical fiber drawing device, as shown in fig. 1(a), different from a chuck of a common optical fiber drawing tower, the chuck is provided with two grippers which are symmetrical about the center of the chuck, the number of the grippers is at least two, and the optical fiber drawing of a plurality of optical fiber preforms can be realized by different numbers of the grippers; the gripper is arranged on the chuck main structure and used for fixing the position of the optical fiber preform and drawing the optical fiber; the optical fiber drawing tower comprises a chuck main structure, a gripper, a motor and a clamping device, wherein two optical fiber prefabricated rods are clamped and fixed at the same time, the gripper is arranged on the chuck main structure and is different from a chuck of a common optical fiber drawing tower, the chuck main structure 50 has a rotating function, the chuck main structure with the rotating function can be used for melting the side surfaces of a plurality of optical fibers after being wound when drawing is carried out, the rotating speed is accurately controlled by the motor, and the rotating speed can be adjusted to 500-3000 r; the chuck is under high-speed rotation, drive two optical fiber perform high-speed rotations together, make a pumping optical fiber 12 and an active signal optic fibre 11 intertwine, form figure 3, the winding methods shown in figure 4, in the winding, in heating furnace device department, carry out high temperature side fusion to winding optic fibre simultaneously, wherein high temperature heating's mode can adopt graphite alkene heating, a series of heating methods such as laser heating or oxyhydrogen flame heating, it is just right that the temperature that only needs the heating reaches optic fibre and can carry out the temperature of melting, can make beam combination optic fibre carry out the side fusion.
Example II
This embodiment discloses a multi-fiber side fusion beam combining device, as shown in fig. 1(b), the chuck includes two structures, i.e. an inner ring layer 1 and an outer ring layer 2: the inner ring layer 1 is provided with at least one handle; the outer ring layer 2 is provided with at least one gripper and is uniformly distributed around the inner ring layer 1, the inner ring layer 1 is positioned at the center of the chuck structure, the outer ring layer 2 can rotate around the inner ring layer 1 in different degrees, the rotating speed is accurately controlled by a motor, and the rotating speed can be adjusted to 500-3000 r/min; the inner ring layer 1 is provided with a first gripper 61, the outer ring layer 2 is provided with a second gripper 62, a third gripper 63, a fourth gripper 64, a fifth gripper 65, a sixth gripper 66, a seventh gripper 67, an eighth gripper 68 and a ninth gripper 69, and the 9 grippers can be combined in different manners to manufacture N +1 bundled optical fibers. Then, a (1+1) -type composite functional fiber can be manufactured by using a first gripper 61 and a second gripper 62, an active signal fiber preform is clamped and fixed at the first gripper 61, a pumping fiber preform is clamped and fixed at the second gripper 62, and a rotation function is started during drawing, so that the pumping fibers 12 can be mutually wound around the active signal fiber 11 to form a winding mode shown in fig. 5 and 6, and a cross-sectional view of the manufactured 2+ 1-type composite functional fiber is shown in fig. 8; a first gripper 61, a gripper 62 and a gripper 65 are used for manufacturing a 2+1 type composite function optical fiber, the gripper 61 clamps and fixes the active signal optical fiber prefabricated rod, the gripper 62 and the gripper 65 respectively clamp and fix two pumping optical fiber prefabricated rods, a rotation function is started during drawing so that 2 pumping optical fibers can be wound around 1 active signal optical fiber, and the cross section of the manufactured 2+1 type composite function optical fiber is shown in fig. 8; the 4+1 type composite functional optical fiber can be manufactured by using five grippers, namely a first gripper 61, a second gripper 62, a fourth gripper 64, a sixth gripper 66 and an eighth gripper 68; nine grippers including a first gripper 61, a second gripper 62, a third gripper 63, a fourth gripper 64, a fifth gripper 65, a sixth gripper 66, a seventh gripper 67, an eighth gripper 68 and a ninth gripper 69 can be used for manufacturing the (8+1) -type composite functional optical fiber, and the cross-sectional view is shown in fig. 9; therefore, the (N + M) type composite function optical fiber can be obtained by adopting the chucks with different numbers in the outer ring layer 2 to carry out optical fiber rotary drawing (N is the number of the pumping optical fibers, N is more than or equal to 1; M is the number of the gain optical fibers, M is more than or equal to 1)
Example III
The embodiment discloses a composite optical fiber structure schematic diagram of a beam combining method of a multi-optical fiber side fusion beam combining device, as shown in fig. 4-6, an active signal doped optical fiber 11 and a pump optical fiber 12 are wound around each other in an optical fiber beam combining region B and are fused with each other along the axial direction; are separated from each other in the region A and the region C; the optical fiber bundle in the optical fiber bundle combining region B has a double coating including a low refractive index coating layer 13 and a protective coating layer 14. The pumping light can be injected from two ends of the pumping optical fiber 12 respectively or simultaneously, the high-efficiency coupling of the pumping light is realized in the optical fiber beam combination area B, and by the drawing method, two optical fibers with the same diameter can be subjected to fusion drawing, and two optical fiber preforms with different diameters and even large differences can be subjected to fusion drawing; the fusion cross section of the drawn optical fiber is shown in FIGS. 7-9, the pump optical fiber and the active signal optical fiber are connected together in a fusion mode, if the (1+1) type beam combination optical fiber is provided, the cross section at the beam combination position is an 8-shaped fusion cross section, and if the (N +1) type optical fibers are fused and bundled together, the fusion cross section is a polygonal fusion cross section with radian; the beam-combined optical fiber drawn by the method not only greatly improves the coupling efficiency and has good stability, but also can realize unidirectional kilowatt-level laser power output and bidirectional pumping.
In summary, the composite functional optical fiber prepared by the multi-optical fiber side fusion beam combining device has high coupling efficiency, can realize the output of high-power laser and bidirectional pumping, can prepare a long-distance axial side fusion beam combining region, and can realize the integration of an active optical fiber and a pumping optical fiber.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a many optical fiber side fusion closes and restraints device, includes chuck, heating furnace and take-up reel, the heating furnace sets up under the chuck, its characterized in that: the chuck comprises a chuck main structure and a gripper; the gripper is arranged on the chuck main structure; the number of the grippers is at least two; the chuck main structure is a rotating structure.
2. The multi-fiber side fusion splicing device of claim 1, wherein: the chuck main structure comprises an inner ring layer and an outer ring layer; the outer ring layer is wrapped around the inner ring layer; the inner ring layer and the outer ring layer are both provided with at least one hand grip.
3. The multi-fiber side fusion splicing device of claim 2, wherein: the inner ring layer is arranged at the center of the chuck main structure.
4. The multi-fiber side fusion splicing device of claim 3, wherein: when the number of the outer ring layer grippers is two or more, the grippers are uniformly arranged around the inner ring layer.
5. The multi-fiber side fusion splicing device according to any one of claims 1 to 4, wherein: the hand grips are triangular hand grips or four-corner hand grips.
6. The multi-fiber side fusion splicing device according to any one of claims 1 to 4, wherein: the heating furnace is a graphene heating furnace, a laser heating furnace or an oxyhydrogen flame heating furnace.
7. The multi-fiber side fusion splicing device according to any one of claims 1 to 4, wherein: the chuck main structure is a cylindrical structure.
8. The multi-fiber side fusion splicing device according to any one of claims 1 to 4, wherein: and a coating device and a curing device are arranged below the heating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922307595.6U CN211688828U (en) | 2019-12-20 | 2019-12-20 | Multi-optical fiber side fusion beam combining device |
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| CN201922307595.6U CN211688828U (en) | 2019-12-20 | 2019-12-20 | Multi-optical fiber side fusion beam combining device |
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| CN211688828U true CN211688828U (en) | 2020-10-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039559A (en) * | 2019-12-20 | 2020-04-21 | 成都翱翔拓创光电科技合伙企业(有限合伙) | Multi-optical-fiber high-speed rotating wire drawing side fusion beam combining device and method |
| CN112939451A (en) * | 2021-03-25 | 2021-06-11 | 泰安顺茂新材料技术有限公司 | Glass fiber drawing machine capable of reducing moisture of yarn cluster and using method thereof |
-
2019
- 2019-12-20 CN CN201922307595.6U patent/CN211688828U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111039559A (en) * | 2019-12-20 | 2020-04-21 | 成都翱翔拓创光电科技合伙企业(有限合伙) | Multi-optical-fiber high-speed rotating wire drawing side fusion beam combining device and method |
| CN111039559B (en) * | 2019-12-20 | 2023-10-27 | 成都翱翔拓创光电科技合伙企业(有限合伙) | Multi-optical-fiber high-speed rotary wiredrawing side fusion beam combining device and method |
| CN112939451A (en) * | 2021-03-25 | 2021-06-11 | 泰安顺茂新材料技术有限公司 | Glass fiber drawing machine capable of reducing moisture of yarn cluster and using method thereof |
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