CN217689490U - Polarization maintaining optical fiber countershaft device - Google Patents
Polarization maintaining optical fiber countershaft device Download PDFInfo
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- CN217689490U CN217689490U CN202221849977.7U CN202221849977U CN217689490U CN 217689490 U CN217689490 U CN 217689490U CN 202221849977 U CN202221849977 U CN 202221849977U CN 217689490 U CN217689490 U CN 217689490U
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Abstract
The utility model discloses a polarization maintaining optical fiber counter shaft device, including unable adjustment base, unable adjustment base's top fixed mounting has the backup pad, the top fixed mounting of backup pad has the CMOS camera, the bottom fixed mounting of CMOS camera has upright microscope, upright microscope's bottom fixed mounting has LED annular light source, unable adjustment base's top fixed mounting has first massive piece and second massive piece, the top fixed mounting of fixed plate has step motor. The utility model discloses a set up the main shaft, under the common effect through buffering fixed plate, limit sleeve and telescopic link, optic fibre is placed in the inside of buffering fixed plate, and optic fibre will have a touch power to buffering fixed plate, makes the buffering fixed plate pass through the telescopic link and to the inside removal of limit sleeve, reaches the fixed and buffering to optic fibre, fixes optic fibre, avoids appearing the comparison tight with optic fibre compaction at the in-process that fixes optic fibre, damages optic fibre.
Description
Technical Field
The utility model belongs to the technical field of polarization maintaining optical fiber, especially, relate to a polarization maintaining optical fiber counter shaft device.
Background
The polarization maintaining optical fiber is a special single-mode polarization maintaining optical fiber, the polarization maintaining optical fiber has strong polarization maintaining characteristic, generally, the characteristic is obtained by introducing a stress block or an asymmetric fiber core into the core of the polarization maintaining optical fiber, and due to the characteristic, the polarization maintaining optical fiber is widely applied to the fields with higher requirements on polarization states, such as a polarization maintaining optical fiber gyroscope, interference sensing, coherent light communication and the like, the accurate positioning and alignment of the polarization axis of the polarization maintaining optical fiber is one of key technologies in the application of the polarization maintaining optical fiber, and manufacturers of large devices add a lot of jobs made of the polarization maintaining optical fiber devices along with the rising of the application of the polarization maintaining optical fiber devices; the regularity of the polarization maintaining optical fiber needs to be adjusted in the processing process, the optical fiber cannot be accurately positioned and the qualification rate is low because the optical fiber is manually rotated in the traditional method.
According to the Chinese patent: CN201921899043.2, which is a polarization maintaining optical fiber axial adjustment fixture provided in the disclosure, the polarization maintaining optical fiber has a function of better fixing an optical fiber during a specific use process, but during the specific use process, manual adjustment is also required, and the alignment precision of the whole optical fiber can not be ensured by observing the alignment work of the optical fiber only by naked eyes.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a polarization maintaining optical fiber counter shaft device, it is through setting up main shaft and step motor, when specifically using, at first start step motor and adjust the main shaft, make the recess corresponding with the spacing recess of limiting plate, then make optic fibre put into the main shaft through the spacing recess of interconnect, simultaneously when optic fibre put into first blocky piece, through the buffer fixing plate, under the common effect of spacing sleeve and telescopic link, optic fibre is placed in the inside of buffer fixing plate, when optic fibre is thicker, optic fibre will have a touch force to the buffer fixing plate, make the buffer fixing plate move to the inside of spacing sleeve through the telescopic link, reach the fixing and buffering to optic fibre, fix optic fibre, avoid appearing compacting the tight comparison with optic fibre in the in-process of fixing optic fibre, damage optic fibre; under the common action of the CMOS camera, the upright microscope and the LED annular light source, imaging of the optical fiber end face is obtained through the CMOS camera, the upright microscope and the LED annular light source, the distance between the CMOS camera, the upright microscope and the LED annular light source and the optical fiber end face is adjusted, then the deviation angle of the polarization maintaining optical fiber is finely adjusted through the stepping motor, the accuracy of adjusting the deviation angle is improved, the working efficiency of polarization maintaining optical fiber axis fixing is improved, and the polarization maintaining optical fiber axis fixing machine can be arranged on a working table in the whole using process, is convenient to move, and meets different axis fixing requirements; through the setting of threaded rod, the fixed block is fixed in unable adjustment base's top, threaded connection between threaded rod can realize and the movable block, and then makes the movable block be close to the fixed of fixed block to optic fibre gradually.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a polarization maintaining optical fiber counter shaft device, includes unable adjustment base, unable adjustment base's top fixed mounting has the backup pad, the top fixed mounting of backup pad has the CMOS camera, the bottom fixed mounting of CMOS camera has upright microscope, upright microscope's bottom fixed mounting has LED annular light source, unable adjustment base's top fixed mounting has first massive piece and second massive piece, the second massive piece includes fixed block and movable block, unable adjustment base's right flank fixed mounting has the fixed plate, the top fixed mounting of fixed plate has step motor.
Preferably, the inside fixed mounting of first blocky piece has a stop sleeve, stop sleeve's inside movable mounting has the telescopic link, the left surface fixed mounting of telescopic link has the buffering fixed plate.
Preferably, the second block piece comprises a fixed block and a moving block, and one side of the fixed block corresponding to one side of the moving block is provided with a limit sleeve, an expansion link and a buffer fixing plate.
Preferably, the bottom of the moving block is fixedly provided with a limiting slide block, and the top of the fixed base is fixedly provided with a sliding groove.
Preferably, threaded through holes are formed in the first block piece and the second block piece, and threaded rods are connected to the internal threads of the threaded through holes.
Preferably, a main shaft is movably connected between the first block-shaped element and the second block-shaped element, a groove is formed in the main shaft, and an output shaft of the stepping motor is fixedly connected with the main shaft.
Preferably, a limiting plate is fixedly mounted at the top of the second block-shaped element, and a limiting groove is formed in the top of the limiting plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through setting up main shaft and step motor, during the specific use, at first start step motor adjusts the main shaft, make the recess corresponding with the spacing recess of limiting plate, then make optic fibre put into the main shaft through interconnect's spacing recess, simultaneously when optic fibre is put into first blocking spare, through the buffering fixed plate, under the common effect of spacing sleeve and telescopic link, optic fibre is placed in the inside of buffering fixed plate, when optic fibre is than thick, optic fibre will have a supporting touch power to the buffering fixed plate, make the buffering fixed plate pass through the telescopic link and to spacing telescopic inside removal, reach the fixed and buffering to optic fibre, fix optic fibre, avoid appearing the comparison with the optic fibre compaction at the in-process of fixing optic fibre tighter, damage optic fibre.
2. Under the common action of the CMOS camera, the upright microscope and the LED annular light source, imaging of the optical fiber end face is obtained through the CMOS camera, the upright microscope and the LED annular light source, the distance between the CMOS camera, the upright microscope and the LED annular light source and the optical fiber end face is adjusted, then the deviation angle of the polarization maintaining optical fiber is finely adjusted through the stepping motor, the accuracy of adjusting the deviation angle is improved, the working efficiency of polarization maintaining optical fiber axis fixing is improved, and the polarization maintaining optical fiber axis fixing machine can be arranged on a working table in the whole using process, is convenient to move, and meets different axis fixing requirements; through the setting of threaded rod, the fixed block is fixed in unable adjustment base's top, threaded connection between threaded rod can realize and the movable block, and then makes the movable block be close to the fixed of fixed block to optic fibre gradually.
Drawings
Fig. 1 is a schematic structural view of a polarization maintaining fiber alignment apparatus provided by the present invention;
fig. 2 is a top view of a polarization maintaining fiber alignment apparatus according to the present invention;
fig. 3 is a left side view of a second block in the polarization maintaining optical fiber alignment apparatus according to the present invention;
fig. 4 is a left side view of a first block structure in the polarization maintaining fiber alignment device according to the present invention.
In the figure: 1. a fixed base; 2. a support plate; 3. a CMOS camera; 4. a vertical microscope; 5. an LED annular light source; 6. a fixing plate; 7. a stepping motor; 8. a first block; 9. A second block member; 901. a fixed block; 902. a moving block; 10. a buffer fixing plate; 11. a main shaft; 12. a groove; 13. a limiting plate; 14. a threaded rod; 15. a threaded through hole; 16. a limiting sleeve; 17. a telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, 2, 3 and 4, a polarization maintaining optical fiber counter shaft device comprises a fixed base 1, a support plate 2 is fixedly installed at the top of the fixed base 1, a CMOS camera 3 is fixedly installed at the top of the support plate 2, an upright microscope 4 is fixedly installed at the bottom of the CMOS camera 3, an LED annular light source 5 is fixedly installed at the bottom of the upright microscope 4, imaging of an optical fiber end face is obtained through the CMOS camera 3, the upright microscope 4 and the LED annular light source 5 under the common effect of the CMOS camera 3, the upright microscope 4 and the LED annular light source 5, the distance between the CMOS camera 3, the upright microscope 4 and the LED annular light source 5 and the optical fiber end face is adjusted, a first block piece 8 and a second block piece 9 are fixedly installed at the top of the fixed base 1, the second block piece 9 comprises a fixed block 901 and a movable block 902, a fixed plate 6 is fixedly installed at the right side face of the fixed base 1, a stepping motor 7 is fixedly installed at the top of the fixed plate 6, fine adjustment of a deviation angle of a polarization maintaining optical fiber is performed through the stepping motor 7, accuracy of deviation angle adjustment is improved, working efficiency of the polarization maintaining optical fiber counter shaft is improved, the whole used optical fiber counter shaft can be arranged on a working table, and different working tables can be conveniently met.
In fig. 3 and 4, through buffering fixed plate 10, under the common effect of stop sleeve 16 and telescopic link 17, optic fibre is placed in the inside of buffering fixed plate 10, when optic fibre is thicker, optic fibre will have a touch power to buffering fixed plate 10, make buffering fixed plate 10 pass through telescopic link 17 to stop sleeve 16's inside removal, reach the fixed and buffering to optic fibre, fix optic fibre, avoid appearing the comparison tight with optic fibre compaction at the in-process that fixes optic fibre, damage optic fibre.
In fig. 3 and 4, under the common effect of the buffer fixing plate 10, the limiting sleeve 16 and the telescopic rod 17, the optical fiber is placed in the buffer fixing plate 10, when the optical fiber is thicker, the optical fiber will have a contact force on the buffer fixing plate 10, so that the buffer fixing plate 10 moves towards the inside of the limiting sleeve 16 through the telescopic rod 17, the fixing and buffering of the optical fiber are achieved, the optical fiber is fixed, and the optical fiber is prevented from being compacted tightly in the process of fixing the optical fiber and damaged.
In fig. 3 and 4, a limiting slide block is fixedly mounted at the bottom of the moving block 902, and a sliding groove is fixedly mounted at the top of the fixed base 1.
In fig. 3 and 4, the first block 8 and the second block 9 are both provided with a threaded through hole 15, the threaded through hole 15 is connected with a threaded rod 14 through internal threads, the fixed block 901 is fixed on the top of the fixed base 1 through the threaded rod 14, the threaded rod 14 can be in threaded connection with the moving block 902, and then the moving block 902 is gradually close to the fixed block 901 to fix the optical fiber.
In fig. 3 and 4, swing joint has main shaft 11 between first cubic piece 8 and the second cubic piece 9, main shaft 11's inside is seted up flutedly 12, step motor 7's output shaft is in main shaft 11 fixed connection, carry out fine adjustment to the deviation angle of polarization maintaining optical fiber through step motor 7, the improvement is to the degree of accuracy of deviation angle regulation, promote the work efficiency of polarization maintaining optical fiber dead axle simultaneously, the in-process of whole use can set up polarization maintaining optical fiber dead axle machine on the workstation, be convenient for remove, satisfy different dead axle demands.
In fig. 2, a limiting plate 13 is fixedly mounted at the top of the second block 9 to limit the optical fiber.
In fig. 2, the top of the limiting plate 13 is provided with a limiting groove to limit the optical fiber.
Now, the operation principle of the present invention is described as follows:
through setting up main shaft 11 and step motor 7, during the specific use, at first, start step motor 7 and adjust main shaft 11, make recess 12 corresponding with the spacing recess of limiting plate 13, then make optic fibre put into main shaft 11 through interconnect's spacing recess, simultaneously when optic fibre is put into first massive part 8, through buffering fixed plate 10, under the common effect of spacing sleeve 16 and telescopic link 17, optic fibre is placed in the inside of buffering fixed plate 10, when optic fibre is thicker, optic fibre will have a contact force to buffering fixed plate 10, make buffering fixed plate 10 pass through telescopic link 17 to 16 inside removal of spacing sleeve, reach the fixed and buffering to optic fibre, fix optic fibre, avoid appearing compacting tight with optic fibre compaction comparison at the in-process with optic fibre fixed, damage optic fibre.
In use, under the common action of the CMOS camera 3, the upright microscope 4 and the LED annular light source 5, the imaging of the optical fiber end face is obtained through the CMOS camera 3, the upright microscope 4 and the LED annular light source 5, the distances between the CMOS camera 3, the upright microscope 4 and the LED annular light source 5 and the optical fiber end face are adjusted, then the deviation angle of the polarization maintaining optical fiber is finely adjusted through the stepping motor 7, the accuracy of adjusting the deviation angle is improved, the working efficiency of the polarization maintaining optical fiber axis fixing is improved, and the polarization maintaining optical fiber axis fixing machine can be arranged on a workbench in the whole using process, so that the movement is facilitated, and different axis fixing requirements are met; through the setting of threaded rod 14, fixed block 901 is fixed in the top of unable adjustment base 1, threaded connection between threaded rod 14 can realize and the movable block 902, and then makes movable block 902 be close to the fixed of fixed block 901 to the optic fibre gradually.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a polarization maintaining optical fiber counter shaft device, includes unable adjustment base (1), its characterized in that, the top fixed mounting of unable adjustment base (1) has backup pad (2), the top fixed mounting of backup pad (2) has CMOS camera (3), the bottom fixed mounting of CMOS camera (3) has upright microscope (4), the bottom fixed mounting of upright microscope (4) has LED annular light source (5), the top fixed mounting of unable adjustment base (1) has first cubic (8) and second cubic (9), second cubic (9) are including fixed block (901) and movable block (902), the right flank fixed mounting of unable adjustment base (1) has fixed plate (6), the top fixed mounting of fixed plate (6) has step motor (7).
2. The polarization maintaining optical fiber countershaft device according to claim 1, wherein a limiting sleeve (16) is fixedly installed inside the first block (8), an expansion link (17) is movably installed inside the limiting sleeve (16), and a buffer fixing plate (10) is fixedly installed on the left side surface of the expansion link (17).
3. The polarization maintaining optical fiber countershaft device according to claim 2, wherein the second block (9) comprises a fixed block (901) and a movable block (902), and a limit sleeve (16), an expansion link (17) and a buffer fixing plate (10) are mounted on one side of the fixed block (901) corresponding to one side of the movable block (902).
4. The polarization maintaining fiber countershaft device according to claim 1, wherein a limiting slider is fixedly mounted at the bottom of the moving block (902), and a sliding groove is fixedly mounted at the top of the fixed base (1).
5. A polarization maintaining fiber to axis device according to claim 1, wherein the first block (8) and the second block (9) are internally provided with a threaded through hole (15), and the threaded through hole (15) is internally threaded with a threaded rod (14).
6. The polarization-maintaining fiber countershaft device according to claim 1, wherein a spindle (11) is movably connected between the first block (8) and the second block (9), a groove (12) is formed in the spindle (11), and an output shaft of the stepping motor (7) is fixedly connected to the spindle (11).
7. The polarization maintaining optical fiber countershaft device according to claim 1, wherein a limiting plate (13) is fixedly mounted on a top of the second block (9), and a limiting groove is formed in a top of the limiting plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221849977.7U CN217689490U (en) | 2022-07-15 | 2022-07-15 | Polarization maintaining optical fiber countershaft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221849977.7U CN217689490U (en) | 2022-07-15 | 2022-07-15 | Polarization maintaining optical fiber countershaft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217689490U true CN217689490U (en) | 2022-10-28 |
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ID=83717207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221849977.7U Active CN217689490U (en) | 2022-07-15 | 2022-07-15 | Polarization maintaining optical fiber countershaft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217689490U (en) |
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2022
- 2022-07-15 CN CN202221849977.7U patent/CN217689490U/en active Active
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