An isolator with a simplified collimating structure

Abstract

The application discloses a kind of isolators of collimating structure simplification, can be adjusted to collimating lens quickly, and the rotation of indicating rod occurs through the rotation of circular ring, the position of indicating rod can be known by the setting of protractor, accurate adjustment is realized, and can be quickly and accurately adjusted according to the size of collimating lens, in the process of operation, operation structure is simplified, work efficiency is improved, by being provided with cross bar, with the cooperation of reminding block, cross bar and connecting rod three can form similar to a pipeline, prevent subsequent collimating lens from entering into isolator shell and release shaking, guarantee and motion plate are attached, it is more convenient to use.

Description

Technical Field

[0001] This application relates to an isolator with a simplified collimation structure, belonging to the field of laser devices. Background Technology

[0002] In multi-stage laser amplifiers, to prevent coupling between the amplification stage and the oscillation stage (in multi-stage amplification), i.e., to avoid the amplified energy being fed back to the previous stage, causing the previous stage to oscillate, which would not only damage the working medium but also reduce the amplifier gain and affect the stability of the oscillation stage, optical isolation is required between the oscillation stage and the amplification stage or the amplification stage itself within the laser. An isolator can achieve this purpose, thus preventing energy from the subsequent stage from feeding back to the previous stage, achieving unidirectional transmission of the amplified optical signal.

[0003] However, the existing collimation adjustment structure is too complex. When the collimating lens is placed inside the isolator, it requires frequent operation and cannot be adjusted accurately and quickly, resulting in low work efficiency. Summary of the Invention

[0004] To address the problems existing in the prior art, according to one aspect of this application, a simplified collimation structure isolator is provided, including an isolator housing, an output lens is provided at one end of the inner side of the isolator housing, and the output lens is fixedly connected to the inner wall of the isolator housing;

[0005] The inner wall of the isolator housing is provided with guide plates, and there are four guide plates. The four guide plates are equidistant and fixedly connected to the inner wall of the isolator housing. The other end surface of the isolator housing is provided with a circular hole. The side surface of the guide plate near the output lens is inclined. The inside of the isolator housing is provided with a moving plate, which is in contact with the isolator housing.

[0006] The top, bottom, and both sides of the motion plate are provided with slots, the width of which is greater than the width of the guide plate. A movable block is provided on the side of the motion plate away from the output lens. A crossbar is provided on one side of the motion plate. The movable block is movably connected to the motion plate. A connecting rod is provided at one end of the crossbar. A sliding groove is provided on the side of the crossbar near the center of the motion plate. The connecting rod is movably connected to the crossbar through the sliding groove. There are four movable blocks, which are located around the motion plate. An inclined plate is provided at the top and bottom of each movable block on both sides. The inclined plate is fixedly connected to the movable block. A circular block is provided inside the inclined plate. A protrusion is provided at the top and bottom of the circular block. The circular block is movably connected to the inner wall of the inclined plate through the protrusion. A locking rod is provided on one side of the circular block. The locking rod is fixedly connected to the circular block and is inclined.

[0007] Optionally, a ring is provided at the other end of the isolator housing, and the ring is tightly and movably connected to the other end of the isolator housing. A reminder block is provided at one end of the connecting rod, and the reminder block is fixedly connected to the connecting rod. The reminder block is located inside the circular hole.

[0008] Optionally, the surfaces of the reminder block, the crossbar, and the connecting rod are arranged horizontally and collinearly. A movable block is provided on the other side of the crossbar. One end of the movable block is movably connected to the crossbar, and the other end of the movable block is movably connected to the guide plate. An arc-shaped plate is provided on one side of the bottom end of the motion plate, and the arc-shaped plate is movably connected to the motion plate.

[0009] Optionally, the cross-sectional shape of the motion plate is circular, the motion plate is movably connected to the arc plate, and an extension rod is fixedly provided at the bottom of the arc plate.

[0010] Optionally, the bottom surface of the isolator housing is provided with a slot, the extension rod extends through the slot to the bottom of the isolator housing, the extension rod is movably connected to the slot, and a fixing plate is provided on both sides of the bottom end of the isolator housing.

[0011] Optionally, there are two fixing plates, which are symmetrically arranged about the central axis about the vertical direction of the isolator housing. A threaded rod is provided at the bottom of the isolator housing, and the threaded rod passes through the fixing plate and the extension rod respectively.

[0012] Optionally, the threaded rod is movably connected to the fixed plate and threadedly connected to the extension rod. A reinforcing plate is provided at the top of the other end of the isolator housing. A protractor is provided on one side of the reinforcing plate. An indicator rod is provided on one side of the protractor. The bottom end of the indicator rod is fixedly connected to the top end of the ring.

[0013] Optionally, the number of the reminder blocks is equal to the number of the moving blocks, a circular hole is provided at the center of the moving plate, and the center of the output lens is aligned with the center of the circular hole.

[0014] Optionally, the cross-sectional shape of the movable block is U-shaped, and each of the reminder blocks is provided with an L-shaped rod on one side, the L-shaped rods passing through the ring and being movably connected to the ring.

[0015] Optionally, a limiting block is provided on the outer side of the ring. There are multiple sets of limiting blocks, with two limiting blocks in each set, and each set of limiting blocks is fixedly connected to the end of the L-shaped rod.

[0016] Specific working process: During use, the threaded rod moves. Since the threaded rod is threadedly connected to the extension rod, the rotation of the threaded rod causes the extension rod to move, moving it inside the slot. This, in turn, causes the arc-shaped plate, which is fixedly connected to the extension rod, to move. Because the arc-shaped plate is connected to the moving plate, the moving plate moves simultaneously with the arc-shaped plate, moving inside the isolator housing. This movement pushes the moving block and the connected crossbar to move. When the crossbar moves, the movable block moves simultaneously. Since the movable block is movably connected to the guide plate, it can move along the inclined surface of the guide plate. This causes the movable block to move, which in turn moves the crossbar, causing the connecting rod and the reminder block to move simultaneously. This increases the distance between the multiple reminder blocks and the movable blocks, facilitating subsequent operations. When the crossbar moves to one side, because it is movably connected to the connecting rod via a groove, the connecting rod can gradually enter the groove, causing the crossbar and connecting rod to merge together. This prevents end protrusion. Furthermore, the surfaces of the reminder block, crossbar, and connecting rod are horizontally collinear, and their cooperation forms a conduit-like structure, preventing the collimating lens from entering the isolator housing and causing it to wobble, ensuring contact with the moving plate. This design makes it more convenient to use. When the reminder block moves, its fixed connection to the L-shaped rod causes the rod to change simultaneously, allowing it to continue moving through the ring. The collimating lens is then placed inside the isolator housing, where it, through the cooperation of the four reminder blocks, the crossbar, and the connecting rod, fits snugly against the moving plate. This ensures the collimating lens's concentricity matches the concentricity of the circular hole, preventing deviations that could reduce collimation effectiveness. The ring is then rotated; its tight, movable connection to the isolator housing prevents it from rotating automatically. The rotation of the ring causes the L-shaped rod and the reminder block to rotate simultaneously. The moving block and the moving plate are rotated by the connecting rod and the crossbar. Since the width of the slot is greater than the width of the guide plate, the moving plate can rotate. When the moving block rotates, the tilted plate changes its tilted state, allowing the protrusion to move automatically. The round block rotates inside the tilted plate, which drives the movement of the locking rod. The locking rod gradually moves towards the round hole and fits against the collimating lens, preventing the collimating lens from moving and fixing it in place. The rotation of the ring causes the indicator rod to rotate. The protractor allows the position of the indicator rod to be known, enabling precise and rapid adjustment of the collimating lens.

[0017] The beneficial effects that this application can produce include:

[0018] The isolator with a simplified collimation structure provided in this application can quickly adjust the collimating lens. The rotation of the ring causes the indicator rod to rotate, and the protractor setting can determine the position of the indicator rod, achieving precise adjustment. It can also be quickly and accurately adjusted according to the size of the collimating lens. In the process of operation, the operation structure is simplified and the work efficiency is improved.

[0019] By incorporating a crossbar, the crossbar, and the connecting rod work together to form a conduit-like structure, preventing the collimating lens from entering the isolator housing and causing it to wobble. This ensures a secure fit with the motion plate and makes the device more convenient to use. Attached Figure Description

[0020] Figure 1 This is a schematic cross-sectional view of the overall structure of the isolator provided in one embodiment of this application;

[0021] Figure 2 This is a side view of the moving plate and the moving block in an isolator provided in one embodiment of this application;

[0022] Figure 3 for Figure 2 Enlarged view of part A in the image;

[0023] Figure 4 This is a side view of the annulus and reinforcing plate of an isolator provided in one embodiment of this application.

[0024] List of components and reference numerals:

[0025] 1. Isolator housing; 2. Output lens; 3. Guide plate; 4. Circular hole; 5. Motion plate; 6. Groove; 7. Moving block; 8. Crossbar; 9. Connecting rod; 10. Slide groove; 11. Inclined plate; 12. Circular block; 13. Protrusion; 14. Locking rod; 15. Ring; 16. Reminder block; 17. Movable block; 18. Arc plate; 19. Extension rod; 20. Groove; 21. Fixing plate; 22. Threaded rod; 23. Reinforcing plate; 24. Protractor; 25. Indicator rod; 26. Circular hole; 27. L-shaped rod; 28. Limiting block. Detailed Implementation

[0026] The present application is described in detail below with reference to the embodiments, but the present application is not limited to these embodiments.

[0027] According to one embodiment of this application, a simplified collimation structure isolator is provided, including an isolator housing 1, an output lens 2 is provided at one end of the inner side of the isolator housing 1, and the output lens 2 is fixedly connected to the inner wall of the isolator housing 1.

[0028] The inner wall of the isolator housing 1 is provided with guide plates 3. There are four guide plates 3, which are equidistant and fixedly connected to the inner wall of the isolator housing 1. The other end surface of the isolator housing 1 is provided with a circular hole 4. The surface of the guide plate 3 near the output lens 2 is inclined. The inside of the isolator housing 1 is provided with a moving plate 5, which is in contact with the isolator housing 1.

[0029] The top, bottom, and both sides of the motion plate 5 are provided with slots 6, the width of which is greater than the width of the guide plate 3. A movable block 7 is provided on the side of the motion plate 5 away from the output lens 2, and a crossbar 8 is provided on one side of the motion plate 5. The movable block 7 is movably connected to the motion plate 5. A connecting rod 9 is provided at one end of the crossbar 8, and a sliding groove 10 is provided on the surface of the crossbar 8 near the center of the motion plate 5. The connecting rod 9 is movably connected to the crossbar 8 through the sliding groove 10. There are four movable blocks 7, which are located around the motion plate 5. Inclined plates 11 are provided at the top and bottom of the movable blocks 7 on both sides. The inclined plates 11 are fixedly connected to the movable blocks 7. A circular block 12 is provided inside the inclined plate 11. The top and bottom of the circular block 12 are provided with protrusions 13. The circular block 12 is movably connected to the inner wall of the inclined plate 11 through the protrusions 13. A locking rod 14 is provided on one side of the circular block 12. The locking rod 14 is fixedly connected to the circular block 12 and is inclined.

[0030] The other end of the isolator housing 1 is provided with a ring 15, which is tightly and movably connected to the other end of the isolator housing 1. One end of the connecting rod 9 is provided with a reminder block 16, which is fixedly connected to the connecting rod 9 and is located inside the circular hole 4.

[0031] The surfaces of the reminder block 16, the crossbar 8, and the connecting rod 9 are arranged horizontally and collinearly. A movable block 17 is provided on the other side of the crossbar 8. One end of the movable block 17 is movably connected to the crossbar 8, and the other end of the movable block 17 is movably connected to the guide plate 3. An arc-shaped plate 18 is provided on one side of the bottom end of the motion plate 5. The arc-shaped plate 18 is movably connected to the motion plate 5.

[0032] The moving plate 5 has a circular cross-sectional shape and is movably connected to the arc plate 18. An extension rod 19 is fixedly provided at the bottom of the arc plate 18.

[0033] The bottom surface of the isolator housing 1 is provided with a slot 20, and the extension rod 19 extends through the slot 20 to the bottom of the isolator housing 1. The extension rod 19 is movably connected to the slot 20, and a fixing plate 21 is provided on both sides of the bottom end of the isolator housing 1.

[0034] There are two fixing plates 21, which are symmetrically arranged about the central axis about the vertical direction of the isolator housing 1. A threaded rod 22 is provided at the bottom of the isolator housing 1, and the threaded rod 22 passes through the fixing plate 21 and the extension rod 19 respectively.

[0035] The threaded rod 22 is movably connected to the fixed plate 21 and threadedly connected to the extension rod 19. A reinforcing plate 23 is provided at the top of the other end of the isolator housing 1. A protractor 24 is provided on one side of the reinforcing plate 23. An indicator rod 25 is provided on one side of the protractor 24. The bottom end of the indicator rod 25 is fixedly connected to the top end of the ring 15.

[0036] The number of reminder blocks 16 is equal to the number of moving blocks 7. A circular hole 26 is provided at the center of the moving plate 5, and the center of the output lens 2 is aligned with the center of the circular hole 26.

[0037] The moving block 7 has a U-shaped cross-section, and each of the reminder blocks 16 has an L-shaped rod 27 on one side. The L-shaped rod 27 passes through the ring 15 and is movably connected to the ring 15.

[0038] The outer side of the ring 15 is provided with a limiting block 28. There are multiple sets of the limiting blocks 28, and each set of the limiting blocks 28 consists of two blocks. Each set of the limiting blocks 28 is fixedly connected to the end of the L-shaped rod 27.

[0039] Specific working process: During use, the threaded rod 22 is moved. Since the threaded rod 22 is threadedly connected to the extension rod 19, the rotation of the threaded rod 22 causes the extension rod 19 to move, allowing it to move inside the slot 20. This also causes the arc-shaped plate 18, which is fixedly connected to the extension rod 19, to move. Because the arc-shaped plate 18 is connected to the moving plate 5, the moving plate 5 moves simultaneously with the arc-shaped plate 18, allowing it to move inside the isolator housing 1. This, in turn, pushes the moving block 7 and the connected crossbar 8 to move. When the crossbar 8 moves, the movable block 17 moves simultaneously. Since the movable block 17 is movably connected to the guide plate 3, it can move along the guide plate 3. The tilting surface moves, causing the position of the movable block 17 to change, which in turn moves the crossbar 8. This causes the connecting rod 9 and the reminder block 16 to move simultaneously, increasing the distance between the multiple reminder blocks 16 and the distance between the movable blocks 7, facilitating subsequent operations. When the crossbar 8 moves to one side, because it is movably connected to the connecting rod 9 via the slide groove 10, the connecting rod 9 can gradually enter the interior of the slide groove 10, causing the crossbar 8 and the connecting rod 9 to merge together, preventing end protrusion. Furthermore, the surfaces of the reminder block 16, the crossbar 8, and the connecting rod 9 are horizontally collinear, and their cooperation forms a conduit-like structure, preventing the collimating lens from entering the isolator housing 1 and causing it to shake, ensuring proper contact with the moving plate 5. The fit is more convenient to use, and when the reminder block 16 moves, because the reminder block 16 is fixedly connected to the L-shaped rod 27, the rod changes simultaneously, causing the L-shaped rod 27 to continue moving through the ring 15. Then, the collimating lens is placed inside the isolator housing 1, allowing it to fit together with the moving plate 5 through the cooperation of the four reminder blocks 16, the crossbar 8, and the connecting rod 9. This ensures that the concentricity of the collimating lens matches the concentricity of the circular hole 26, preventing deviations that could reduce the collimation effect. Then, the ring 15 is rotated. Because the ring 15 is tightly and movably connected to the isolator housing 1, preventing the ring 15 from rotating automatically, the rotation of the ring 15 causes the L-shaped rod 27 and the reminder block 16 to rotate simultaneously. The moving block 7 and the moving plate 5 are rotated by the connecting rod 9 and the crossbar 8. Since the width of the slot 6 is greater than the width of the guide plate 3, the moving plate 5 is ensured to rotate. When the moving block 7 rotates, the tilted plate 11 in the tilted state changes, allowing the protrusion 13 to move automatically. The round block 12 rotates inside the tilted plate 11, which drives the movement of the locking rod 14. The locking rod 14 gradually moves towards the round hole 26 and fits with the collimating lens to prevent the collimating lens from moving, thus fixing the collimating lens. The rotation of the ring 15 causes the indicator rod 25 to rotate. The protractor 24 can be used to know the position of the indicator rod 25, enabling precise and rapid adjustment of the collimating lens.

[0040] The above description is only a part of the embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and all fall within the scope of the technical solution.

Claims

1. An isolator for a simplified collimating structure, characterized by, The device includes an isolator housing, and an output lens is provided at one end of the inner side of the isolator housing. The output lens is fixedly connected to the inner wall of the isolator housing. The inner wall of the isolator housing is provided with guide plates, and there are four guide plates. The four guide plates are equidistant and fixedly connected to the inner wall of the isolator housing. The other end surface of the isolator housing is provided with a circular hole. The side surface of the guide plate near the output lens is inclined. The inside of the isolator housing is provided with a moving plate, which is in contact with the isolator housing. The top, bottom, and both sides of the motion plate are provided with slots, the width of which is greater than the width of the guide plate. A movable block is provided on the side of the motion plate away from the output lens. A crossbar is provided on one side of the motion plate. The movable block is movably connected to the motion plate. A connecting rod is provided at one end of the crossbar. A sliding groove is provided on the side of the crossbar near the center of the motion plate. The connecting rod is movably connected to the crossbar through the sliding groove. There are four movable blocks, which are located around the motion plate. An inclined plate is provided at the top and bottom of the movable blocks on both sides. The inclined plate is fixedly connected to the movable block. A circular block is provided inside the inclined plate. A protrusion is provided at the top and bottom of the circular block. The circular block is movably connected to the inner wall of the inclined plate through the protrusion. A locking rod is provided on one side of the circular block. The locking rod is fixedly connected to the circular block and is inclined. The other end of the isolator housing is provided with a ring, which is tightly and movably connected to the other end of the isolator housing. One end of the connecting rod is provided with a reminder block, which is fixedly connected to the connecting rod and is located inside the circular hole. The surfaces of the reminder block, the crossbar, and the connecting rod are arranged horizontally and collinearly. A movable block is provided on the other side of the crossbar. One end of the movable block is movably connected to the crossbar, and the other end of the movable block is movably connected to the guide plate. An arc-shaped plate is provided on one side of the bottom of the motion plate, and the arc-shaped plate is movably connected to the motion plate.

2. An isolator of simplified collimating structure according to claim 1, characterized in that, The moving plate has a circular cross-sectional shape and is movably connected to the arc plate. An extension rod is fixedly installed at the bottom of the arc plate.

3. An isolator of simplified collimating structure according to claim 2, characterized in that, The bottom surface of the isolator housing is provided with a slot, and the extension rod extends through the slot to the bottom of the isolator housing. The extension rod is movably connected to the slot, and a fixing plate is provided on both sides of the bottom end of the isolator housing.

4. The isolator with a simplified collimation structure according to claim 3, characterized in that, The number of fixing plates is two, and the two fixing plates are symmetrically arranged about the central axis about the vertical direction of the isolator shell. The bottom of the isolator shell is provided with a threaded rod, which passes through the fixing plate and the extension rod respectively.

5. The isolator with a simplified collimation structure according to claim 4, characterized in that, The threaded rod is movably connected to the fixed plate and threadedly connected to the extension rod. A reinforcing plate is provided at the top of the other end of the isolator housing. A protractor is provided on one side of the reinforcing plate. An indicator rod is provided on one side of the protractor. The bottom end of the indicator rod is fixedly connected to the top end of the ring.

6. The isolator with a simplified collimation structure according to claim 1, characterized in that, The number of reminder blocks is equal to the number of moving blocks. A circular hole is provided at the center of the moving plate, and the center of the output lens is aligned with the center of the circular hole.

7. The isolator with a simplified collimation structure according to claim 1, characterized in that, The moving block has a U-shaped cross-section, and each of the reminder blocks has an L-shaped rod on one side. The L-shaped rods all pass through the circular ring and are movably connected to the circular ring.

8. The isolator with a simplified collimation structure according to claim 7, characterized in that, The outer side of the ring is provided with limit blocks. There are multiple sets of limit blocks, with two limit blocks in each set, and each set of limit blocks is fixedly connected to the end of the L-shaped rod.

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