Electric three-ring optical fiber polarization controller

Abstract

The utility model discloses an electric three-ring optical fiber polarization controller, which comprises a base, the upper surface of the base is fixedly connected with uniformly distributed supporting seats, a polarization ring is arranged between every two adjacent supporting seats, and the electric three-ring optical fiber polarization controller further comprises an adjusting mechanism; the adjusting mechanism comprises first gears, rotating shafts, second gears, a worm gear and a worm, the first gears are rotationally connected to the interiors of the three supporting seats on the left side, the rotating shafts are rotationally connected to the rear sides of the interiors of the three supporting seats on the left side, the second gears are fixedly connected to the right sides of the outer surfaces of the rotating shafts, and the second gears are in engaged connection with the longitudinally adjacent first gears; according to the electric three-ring optical fiber polarization controller, the angle of the polarization ring can be accurately regulated and controlled, meanwhile, the polarization ring is locked, the angle change of the polarization ring caused by external force is avoided, and the accuracy of the polarization state of an optical fiber when the electric three-ring optical fiber polarization controller is used is ensured.

Description

Technical Field

[0001] This utility model relates to the field of polarization controller technology, specifically an electric three-ring fiber optic polarization controller. Background Technology

[0002] Three-ring fiber polarization controllers are frequently used in fields such as optical communication, fiber optic sensing, and optical measurement. They can control the polarization state of input light and achieve various applications such as light wave conversion, modulation, and interference removal. In the past, three-ring fiber polarization controllers were adjusted manually by adjusting the angle of the polarization ring, which was not precise enough. Now, motorized three-ring fiber polarization controllers are usually used to make the adjustment of the polarization ring more precise.

[0003] In the prior art, patent publication number CN216434533U discloses an electric three-ring polarization controller, including a base plate, four mounting seats fixedly mounted on the base plate, blades arranged between adjacent mounting seats, a tube shaft arranged at the bottom of the blades, the end of the tube shaft being movably connected to the mounting seat, a gear fixedly connected to the tube shaft, a transmission device arranged at the bottom of the gear, the transmission device including a gear ring and a cross tube, the gear ring and the cross tube being integrally formed, the gear ring meshing with the gear, a first tooth block arranged on the inner wall of the gear ring, a first bearing seat mounted on the outer side of the cross tube, and the first bearing seat being fixedly connected to the surface of the base plate;

[0004] This type of electric three-ring polarization controller has the following disadvantages: the angle of the polarization ring is adjusted by driving the gear transmission through the drive component and cooperating with the clutch. Although the angle of multiple polarization rings can be adjusted by a single drive component, the polarization ring lacks a locking structure when the clutch at the corresponding position is in the disengaged state. This makes the polarization ring susceptible to external forces and angle changes, ultimately resulting in inaccurate polarization state of the optical fiber. To address this, we propose an electric three-ring optical fiber polarization controller. Utility Model Content

[0005] The technical problem this invention aims to solve is to overcome existing defects and provide an electric three-ring fiber polarization controller. Through an adjustment mechanism, a motor drives a worm gear to rotate, which is then transmitted through a worm wheel and gears. This allows for precise control of the polarization ring angle while simultaneously locking the polarization ring to prevent angle changes due to external forces. This ensures the accuracy of the fiber polarization state when using the electric three-ring fiber polarization controller, effectively solving the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric three-ring fiber optic polarization controller, including a base, wherein uniformly distributed support seats are fixedly connected to the upper surface of the base, and a polarization ring is provided between two adjacent support seats, and an adjustment mechanism is also included;

[0007] Adjustment mechanism: It includes gear one, rotating shaft, gear two, worm gear, and worm. Gear one is rotatably connected inside the three support seats on the left. Rotating shaft is rotatably connected to the rear side of the three support seats on the left. Gear two is fixedly connected to the right side of the outer surface of the rotating shaft. Gear two is meshed with the longitudinally adjacent gear one. Worm gear is fixedly connected to the left side of the outer surface of the rotating shaft. Worm is rotatably connected to the rear surface of the three support seats on the left. Worm is meshed with the longitudinally adjacent worm gear. Through the adjustment mechanism, the worm is driven to rotate by a motor and transmitted through the worm gear and gears. This allows for precise control of the polarization ring angle while locking the polarization ring to prevent angle changes due to external forces, ensuring the accuracy of the fiber polarization state when using this electric three-ring fiber polarization controller.

[0008] Furthermore, a microcontroller is installed on the outside of the base, and the input terminal of the microcontroller is electrically connected to an external power source to control the operation of the motor.

[0009] Furthermore, the adjustment mechanism also includes insert rods. The right surface of each gear is fixedly connected with symmetrically distributed insert rods, and the left end of each polarization ring is provided with symmetrically distributed insertion holes. The insert rods are inserted into longitudinally adjacent insertion holes to transmit driving force.

[0010] Furthermore, motors are fixedly connected to the rear surfaces of the three support bases on the left side. The upper ends of the output shafts of the motors are fixedly connected to the lower ends of the vertically adjacent worm gears. The input ends of the motors are electrically connected to the output ends of the microcontroller to provide driving force.

[0011] Furthermore, each of the inner right sides of the polarization ring is slidably connected to a sliding connecting block, and the left surface of the sliding connecting block is fixedly connected to the inner wall of the longitudinally adjacent polarization ring with symmetrically distributed springs to install the polarization ring.

[0012] Furthermore, each of the sliding connecting blocks has a fixed paddle attached to its lower surface, which facilitates pushing the sliding connecting block and thus makes it easy to assemble and disassemble the polarization ring.

[0013] Furthermore, each of the polarization rings has an internal fiber slot for placing optical fibers.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This electric three-ring fiber optic polarization controller has the following advantages:

[0015] The adjustment mechanism uses a motor to drive the worm gear to rotate, and the transmission is achieved through the worm wheel and gears. This allows for precise control of the polarization ring angle while locking the polarization ring to prevent angle changes due to external forces. This ensures the accuracy of the fiber polarization state when using this electric three-ring fiber polarization controller. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 5 This is an enlarged structural diagram of section B of the present invention;

[0021] Figure 6 This is an enlarged structural diagram of point C in this utility model.

[0022] In the diagram: 1. Base, 2. Support, 3. Polarizing ring, 4. Motor, 5. Adjustment mechanism, 51. Gear 1, 52. Rotating shaft, 53. Gear 2, 54. Worm gear, 55. Worm, 56. Insert rod, 6. Sliding connecting block, 7. Spring, 8. Paddle, 9. Microcontroller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This embodiment provides a technical solution: an electric three-ring fiber polarization controller, including a base 1, with uniformly distributed support seats 2 fixedly connected to the upper surface of the base 1, and a polarization ring 3 between each of two adjacent support seats 2. A microcontroller 9 is provided outside the base 1, and the input end of the microcontroller 9 is electrically connected to an external power supply. It also includes an adjustment mechanism 5.

[0025] Adjustment mechanism 5: It includes gear 1 51, rotating shaft 52, gear 2 53, worm gear 54, and worm 55. Gear 1 51 is rotatably connected inside the three support seats 2 on the left side. Rotating shaft 52 is rotatably connected to the rear side of the interior of the three support seats 2 on the left side. Gear 2 53 is fixedly connected to the right side of the outer surface of rotating shaft 52. Gear 2 53 meshes with the longitudinally adjacent gear 1 51. Worm gear 54 is fixedly connected to the left side of the outer surface of rotating shaft 52. Worm 55 is rotatably connected to the rear surface of the three support seats 2 on the left side. Worm 55 meshes with the longitudinally adjacent worm gear 54. Motor 4 is fixedly connected to the rear surface of the three support seats 2 on the left side. The upper end of the output shaft of motor 4 is connected to the vertical... The lower ends of adjacent worm gears 55 are fixedly connected, and the input ends of motors 4 are electrically connected to the output ends of microcontrollers 9. When the angle of polarization ring 3 needs to be adjusted, the microcontroller 9 is operated to start the longitudinally adjacent motors 4 corresponding to the polarization ring 3 to be adjusted. The output shaft of motor 4 rotates, driving worm gears 55 to rotate, causing worm wheel 54 to rotate, driving shaft 52 to rotate, causing gear 2 53 to rotate, driving gear 1 51 to rotate, causing the insert rod 56 to rotate around the central axis of gear 1 51, driving polarization ring 3 to rotate around the central axis of gear 1 51, thereby adjusting the angle of polarization ring 3. The adjustment mechanism 5 also includes insert rods 56, and symmetrically distributed insert rods 56 are fixedly connected to the right surface of gear 1 51. Each polarization ring 3 has symmetrically distributed insertion holes on its left end. Insert rods 56 are inserted into longitudinally adjacent insertion holes. Sliding connecting blocks 6 are slidably connected to the right side of each polarization ring 3. Symmetrically distributed springs 7 are fixedly connected between the left surface of the sliding connecting block 6 and the inner wall of the longitudinally adjacent polarization ring 3. A lever 8 is fixedly connected to the lower surface of each sliding connecting block 6. When the polarization ring 3 needs to be replaced or maintained, push the lever 8 to the left, causing the sliding connecting block 6 to move to the left, disengaging it from the right-side support 2. The springs 7 retract, pulling the polarization ring 3 to the right, disengaging the insertion rods 56 from the slots, thus removing the polarization ring 3. When the polarization ring needs to be installed, connect the insertion rods 56 to the slots... With the slots corresponding laterally, push the polarization ring 3 to the left to insert the insertion rod 56 into the slot. Release the lever 8, the spring 7 relaxes, and push the sliding connecting block 6 to the right, so that the right end of the sliding connecting block 6 is inserted into the support seat 2 on the right side, thus completing the installation of the polarization ring 3. Each polarization ring 3 has an optical fiber slot. Pass the optical fiber through the inside of the support seat 2 and wind it into the optical fiber slots inside the three polarization rings 3 respectively. The three polarization rings 3 are equivalent to λ / 4, λ / 2, and λ / 4 waveplates respectively. The light wave first passes through the first λ / 4 waveplate and is converted into linearly polarized light; then the polarization direction is adjusted by the λ / 2 waveplate; finally, the polarization state of the linearly polarized light is changed into an arbitrary polarization state by the third λ / 4 waveplate.

[0026] The working principle of the electric three-ring fiber polarization controller provided by this utility model is as follows: When using this electric three-ring fiber polarization controller, the optical fiber is passed through the inside of the support base 2 and wound into the fiber slots inside the three polarization rings 3 respectively. The three polarization rings 3 are equivalent to λ / 4, λ / 2, and λ / 4 waveplates respectively. The light wave first passes through the first λ / 4 waveplate and is converted into linearly polarized light; then the polarization direction is adjusted by the λ / 2 waveplate; finally, the polarization state of the linearly polarized light is changed to an arbitrary polarization state by the third λ / 4 waveplate. When it is necessary to adjust the angle of the polarization ring 3, the microcontroller 9 is operated to start the motor 4 that is longitudinally adjacent to the polarization ring 3 to be adjusted. The output shaft of the motor 4 rotates, driving the worm gear 55 to rotate, causing the worm wheel 54 to rotate, driving the rotating shaft 52 to rotate, causing the gear 53 to rotate. Rotating the lever 51 causes the insert rod 56 to rotate around the central axis of the gear 51, which in turn causes the polarizing ring 3 to rotate around the central axis of the gear 51, thus adjusting the angle of the polarizing ring 3. When the polarizing ring 3 needs to be replaced or maintained, push the lever 8 to the left, causing the sliding connecting block 6 to move to the left, disengaging the sliding connecting block 6 from the right support seat 2. The spring 7 then contracts, pulling the polarizing ring 3 to the right, disengaging the insert rod 56 from the slot, thus removing the polarizing ring 3. When the polarizing ring needs to be installed, align the insert rod 56 horizontally with the slot, push the polarizing ring 3 to the left, inserting the insert rod 56 into the slot, release the lever 8, and the spring 7 relaxes, pushing the sliding connecting block 6 to the right, inserting the right end of the sliding connecting block 6 into the right support seat 2, thus completing the installation of the polarizing ring 3.

[0027] It is worth noting that the motor 4 disclosed in the above embodiments is a JGA25-370, the microcontroller 9 is an STM32F103ZET6, and the microcontroller 9 controls the operation of the motor 4 using methods commonly used in the prior art.

[0028] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electrically-driven three-ring fiber polarization controller, comprising a base (1), the upper surface of the base (1) is fixedly connected with uniformly distributed support seats (2), one polarization ring (3) is arranged between every two adjacent support seats (2), characterized in that: Also include the adjusting mechanism (5); The adjusting mechanism (5) comprises gear one (51), rotating shaft (52), gear two (53), worm (54) and worm (55), the inside of the three support seats (2) on the left is rotatably connected with gear one (51), the inside of the three support seats (2) on the left rear side is rotatably connected with rotating shaft (52), the outer surface right side of rotating shaft (52) is fixedly connected with gear two (53), gear two (53) is connected with longitudinally adjacent gear one (51) engagement, the outer surface left side of rotating shaft (52) is fixedly connected with worm (54), the rear surface of the three support seats (2) on the left is rotatably connected with worm (55), worm (55) is connected with longitudinally adjacent worm (54) engagement.

2. An electrically tunable three-ring fiber optic polarization controller according to claim 1, wherein: The outside of the base (1) is provided with a single-chip microcomputer (9), and the input end of the single-chip microcomputer (9) is electrically connected with an external power supply.

3. The electric triple-ring fiber optic polarization controller according to claim 1, characterized in that: The adjusting mechanism (5) further comprises an inserting rod (56), the right surface of the gear one (51) is fixedly connected with the symmetrically distributed inserting rod (56), the left end of the polarization ring (3) is provided with symmetrically distributed insertion holes, and the inserting rod (56) is inserted into the longitudinally adjacent insertion hole.

4. An electrically tunable three-ring fiber optic polarization controller according to claim 2, wherein: The rear surface of the three support seats (2) on the left is fixedly connected with motor (4), and the output shaft upper end of motor (4) is fixedly connected with the lower end of the vertically adjacent worm (55), and the input end of motor (4) is electrically connected with the output end of single-chip microcomputer (9).

5. An electrically tunable three-ring fiber optic polarization controller according to claim 1, wherein: The inside right side of the polarization ring (3) is slidably connected with a sliding connecting block (6), and the left surface of the sliding connecting block (6) and the inner wall of the longitudinally adjacent polarization ring (3) are fixedly connected with symmetrically distributed springs (7).

6. An electrically tunable three-ring fiber optic polarization controller according to claim 5, wherein: The lower surface of the sliding connecting block (6) is fixedly connected with a tab (8).

7. The electric triple-loop fiber optic polarization controller according to claim 1, characterized in that: The inside of the polarization ring (3) is provided with an optical fiber groove.

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