Polarization controller and desk type light polarization control device
By integrating the design of the module base, module cover, and polarization components, and combining birefringent materials and adjustment parts, the problem of large size of polarization controllers is solved, achieving precise control and miniaturization of polarization state, making it suitable for various system integrations.
Patent Information
- Application Number
- CN202423084886.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing polarization controllers are bulky and difficult to integrate with various systems.
The design employs a modular base, modular cover, and polarization components to integrate waveplates and adjustment elements into a miniaturized polarization controller. The adjustment elements enable rotational adjustment of the waveplates, and the waveplates made of birefringent materials achieve precise control of polarization state within an extremely small volume.
It achieves miniaturization of polarization controllers, enabling precise control of light polarization state within a very small volume, and is easy to integrate into various systems.
Smart Images
Figure CN223728060U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a deflection controller technical field, concretely is a kind of polarized light controller and desk type light polarized light control device. BACKGROUND
[0002] Polarized light controller is mainly used to control, change the polarization state of light, and can convert input polarized light of arbitrary polarization state into the polarization state prepared at output end;The current polarized light controller includes fiber ring type polarized light controller, and the fiber ring type polarized light controller is by winding fiber on the disc, and the birefringence of fiber is caused by stress, so that input light produces phase shift in two polarization directions, thereby realizing polarization control, and this working mode needs larger space to accommodate the winding of fiber and stress applying device, so the volume is relatively larger, so that the existing polarized light controller is difficult to integrate with various systems;There is an urgent need to provide a polarized light controller to solve the problem of large volume of existing polarized light controller. SUMMARY
[0003] The utility model aims at providing a kind of polarized light controller and desk type light polarized light control device to solve the problem of large volume of existing polarized light controller.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A kind of polarized light controller, including module seat, module cover plate and several polarized components installed in the module seat;The module cover plate is installed at the top of the module seat, and the polarized component includes wave plate and adjusting member for installing wave plate and can drive wave plate adjustment, the module seat is provided with at least one containing wave plate and the containing passage that penetrates the opposite sides of module seat, multiple wave plates in the same containing passage are coaxially arranged, and the opposite sides of the module seat are provided with fiber device interface, and the fiber device interface of two sides is respectively penetrated and coaxial with the two ends of containing passage.
[0006] Further, the module seat includes module base and module intermediate seat stacked up and down, the module base is provided with a plurality of first installation grooves, the module intermediate seat is provided with a plurality of second installation grooves corresponding to the first installation grooves, and the first installation grooves and the second installation grooves are formed into installation part, and the installation part is used to install the polarized component.
[0007] Further, the module seat is provided with one containing passage, and the module base and the module intermediate seat are provided with through grooves, and the through grooves of the two are formed into the containing passage.
[0008] Further, the module seat is provided with two or more containing passages, and the module base and the module intermediate seat are provided with two or more through grooves, and the through grooves of the two are corresponding and formed into the containing passage.
[0009] Further, two or more accommodation channels are arranged in parallel.
[0010] Further, the adjusting member comprises an adjusting drive and an adjusting seat with a hollow shaft, a part of the mounting portion is used for mounting the adjusting drive, the adjusting seat is rotationally mounted on another part of the mounting portion and coaxial with the accommodation channel, the wave plate is coaxially mounted in the hollow shaft, the output end of the adjusting drive is connected with the adjusting seat and drives the adjusting seat to rotate circumferentially to drive the wave plate to rotate and adjust.
[0011] Further, the adjusting drive is a rotary motor, the adjusting seat is a worm gear, and a worm transmission is arranged between the rotary motor and the worm gear.
[0012] Further, the fiber device interface comprises a fiber collimator fixing tube and an optical path adapter coaxially sleeved outside the fiber collimator fixing tube.
[0013] Further, the module intermediate seat is located between the module base and the module cover plate and connected with both, or the module intermediate seat is embedded in the module base, and the module base is connected with the module cover plate.
[0014] The utility model also provides a desk type light polarization control device which comprises the polarization controller.
[0015] Compared with the prior art, the utility model has the advantages that: the polarization assembly comprises a wave plate and an adjusting member, the wave plate is made of a birefringent material, so that the wave plate can realize accurate control of the polarization state of light in a very small volume, the adjusting member is arranged to adjust the rotation angle of the wave plate, thereby realizing accurate control of the polarization state in the fiber, in addition, the polarization assembly is integrated and packaged by the module seat and the module cover plate, so that the volume of the polarization controller is reduced, and the polarization controller with small volume is easier to be integrated into various systems.
[0016] The desk type light polarization control device provided by the utility model comprises the polarization controller, and thus has the same functions as the polarization controller. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 Fig. 1 is a structural schematic view of a polarization controller disclosed by an embodiment of the utility model;
[0018] Figure 2 Fig. 2 is a partial structural schematic view of the polarization controller; Figure 1 Fig. 3 is an exploded structural schematic view of part of the polarization controller;
[0019] Figure 3 Fig. 4 is a structural schematic view of another angle of the polarization controller; Figure 2 Fig. 5 is a structural schematic view of another angle of the polarization controller;
[0020] Figure 4 Fig. 6 is a structural schematic view of another angle of the polarization controller.Figure 3 Schematic diagram of the structure of the middle module's intermediate seat;
[0021] Figure 5 This is a schematic diagram of another polarization controller disclosed in an embodiment of the present invention;
[0022] Figure 6 for Figure 5 A partial diagram of the exploded structure;
[0023] Figure 7 for Figure 6 A structural diagram from another perspective.
[0024] In the diagram: 1. Module base; 11. Module base; 111. First mounting slot; 112. Through slot; 12. Module intermediate seat; 2. Module cover plate; 121. Second mounting slot; 3. Polarization component; 31. Adjustment drive; 311. Rotary motor; 312. Worm gear; 32. Adjustment seat; 321. Hollow shaft; 4. Fiber optic device interface; 41. Fiber optic collimator fixing tube; 42. Optical path adapter. Detailed Implementation
[0025] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] In this document, terms such as "upper," "lower," "inner," and "outer" are established based on the positional relationships shown in the accompanying drawings. Depending on the drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection. Moreover, relational terms such as "first" and "second" are only used to distinguish one component from another that has the same name, and do not necessarily require or imply any such actual relationship or order between these components.
[0027] Example 1
[0028] like Figures 1-3 As shown, the polarization controller disclosed in this embodiment includes a module base 1, a module cover 2, and a plurality of polarization components 3 mounted on the module base 1. The module cover 2 is mounted on the top of the module base 1. The polarization components 3 include waveplates and adjustment components for mounting the waveplates and for driving the waveplates to adjust. The module base 1 is provided with at least one receiving channel that accommodates the waveplates and extends through opposite sides of the module base 1. Multiple waveplates located in the same receiving channel are coaxially arranged. Optical fiber device interfaces 4 are provided on opposite sides of the module base 1. The optical fiber device interfaces 4 on both sides are respectively connected to and coaxial with the two ends of the receiving channel.
[0029] Specifically, the polarization assembly 3 comprises a wave plate and an adjusting piece, the wave plate is made of a birefringent material, so that the wave plate can realize accurate control of the polarization state of light in a very small volume, and the adjusting piece is arranged to adjust the rotation angle of the wave plate, so as to realize accurate control of the polarization state in the optical fiber. In addition, the polarization assembly 3 is integrated and packaged by the module seat 1 and the module cover plate 2, so as to reduce the volume of the polarization controller, and the polarization controller with small volume is easier to be integrated into various systems.
[0030] More specifically, as shown in Figure 2 and Figure 3 , the module seat 1 is provided with a containing channel, the module base 11 and the module intermediate seat 12 are both provided with a through groove 112, and the through grooves 112 of the two enclose the containing channel; the module seat 1 is installed with three polarization assemblies 3 arranged at intervals, wherein the wave plates of the polarization assemblies 3 on both sides are quarter-wave plates, and the wave plate of the polarization assembly 3 in the middle is a half-wave plate. By adjusting the three wave plates, the ergodicity of the output polarization state of the light wave can be realized; the quarter-wave plate is used to convert linearly polarized light into circularly polarized light or elliptically polarized light, and the half-wave plate is used to change the phase of the light wave, that is, the half-wave plate changes the polarization direction of the light, thereby realizing the adjustment of the polarization state. The combination of the two kinds of wave plates can realize fine control of the polarization state of the light wave. It can be understood that the number of polarization assemblies 3 is not limited, and is selected according to the actual situation, and in addition, the selection of the wave plate is also not limited, and is selected and combined according to the actual situation.
[0031] More specifically, the working process of the polarization controller is as follows: the signal light enters the device through the optical fiber device interface 4 on one side, passes through a plurality of polarization assemblies 3 in turn, the signal light is processed by the polarization assemblies 3, and is output through the optical fiber device interface 4 on the other side.
[0032] Further, as shown in Figure 2 and Figure 3 , the module seat 1 comprises a module base 11 and a module intermediate seat 12 stacked one above the other, the module base 11 is provided with a plurality of first installation grooves 111, and the module intermediate seat 12 is provided with a plurality of second installation grooves 121 corresponding to the first installation grooves 111 one by one. The first installation grooves 111 and the second installation grooves 121 correspond to each other to form an installation part, the installation part is used to install the polarization assembly 3, the installation part contains the polarization assembly 3, and the installation and positioning of the polarization assembly 3 are realized.
[0033] Further, as shown in Figure 7As shown, the adjusting member includes an adjusting drive 31 and an adjusting seat 32 with a hollow shaft 321, part of the mounting portion is used to mount the adjusting drive 31, the adjusting seat 32 is rotationally mounted on another part of the mounting portion and coaxial with the accommodating channel, the wave plate is coaxially mounted in the hollow shaft 321, the output end of the adjusting drive 31 is connected to the adjusting seat 32 and drives the adjusting seat 32 to rotate circumferentially to drive the wave plate to rotate for adjustment; specifically, the first mounting groove 111 and the second mounting groove 121 both penetrate the radial two sides of the accommodating channel, the adjusting drive 31 is mounted on one side of the first mounting groove 111 and the second mounting groove 121 located in the accommodating channel, the output end of the adjusting drive 31 drives the adjusting seat 32 to rotate circumferentially, the adjusting seat 32 rotates to drive the wave plate to rotate, the wave plate rotation changes the polarization state in the optical fiber, and the polarization state in the optical fiber is accurately controlled.
[0034] More specifically, as shown in Figure 2 , Figure 3 , Figure 6 and Figure 7 , the adjusting drive 31 adopts a rotary motor 311, the adjusting seat 32 adopts a worm gear, and the rotary motor 311 is drivingly connected with the worm gear through a worm 312; the rotary motor 311 is a precision motor, the precision motor drives the worm gear to rotate through the worm 312, the wave plate is attached in the middle of the worm gear, and the wave plate rotation changes the polarization state in the optical fiber. Understandably, in order to further accurately control the polarization state in the optical fiber, an optical sensor can also be provided, the optical sensor is an optical position sensor, which can accurately monitor the rotation position of the worm gear, and cooperate with the control circuit board to accurately control the rotation of the worm gear, thereby accurately controlling the rotation of the wave plate; wherein the installation position of the optical sensor is not limited as long as it can monitor the worm gear.
[0035] Further, as shown in Figure 2 and Figure 3 , the optical fiber device interface 4 includes an optical fiber collimator fixing tube 41 and an optical path adapter 42 coaxially sleeved outside the optical fiber collimator fixing tube 41; the optical fiber device interface 4 is used to fix the optical fiber collimator, and the main function of the optical fiber collimator is to convert the divergent light emitted by the optical fiber into a nearly parallel light beam.
[0036] Further, as shown in Figure 1 , the module intermediate seat 12 is located between the module base 11 and the module cover plate 2 and connected with both; or, as shown in Figure 5 , the module intermediate seat 12 is embedded in the module base 11, and the module base 11 is connected with the module cover plate 2.
[0037] Embodiment Two
[0038] The same parts in this embodiment as in Embodiment One are given the same reference numerals, and the same textual description is omitted.
[0039] Compared with the first embodiment, the polarization controller provided by the present embodiment has a different structure design, that is, Figure 6 and Figure 7 As shown in the figures, the module seat 1 is provided with two or more accommodation channels, the module base 11 and the module middle seat 12 are each provided with two or more through grooves 112, the through grooves 112 of the two are one-to-one corresponding and are enclosed to form the accommodation channels; wherein the two or more accommodation channels are arranged in parallel, of course, the accommodation channels can also be arranged in other forms, and the specific form is not limited.
[0040] The third embodiment
[0041] In the present embodiment, the same parts as the first and second embodiments are given the same reference numerals, and the same textual description is omitted.
[0042] The utility model discloses a table type light polarization control device, including the polarization controller of any one embodiment above.
[0043] The technical features of the above embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.
Claims
1. A polarization controller characterized by, The module base is provided with a plurality of first installation grooves, and the module intermediate base is provided with a plurality of second installation grooves corresponding to the first installation grooves in one-to-one correspondence.
2. The polarization controller of claim 1, wherein, The module base is provided with a plurality of first installation grooves, and the module intermediate base is provided with a plurality of second installation grooves corresponding to the first installation grooves in one-to-one correspondence.
3. The polarization controller of claim 2, wherein, The module base is provided with a plurality of first installation grooves, and the module intermediate base is provided with a plurality of second installation grooves corresponding to the first installation grooves in one-to-one correspondence.
4. The polarization controller of claim 2, wherein, The module base is provided with a plurality of first installation grooves, and the module intermediate base is provided with a plurality of second installation grooves corresponding to the first installation grooves in one-to-one correspondence.
5. The polarization controller of claim 4, wherein, The module base is provided with a plurality of first installation grooves, and the module intermediate base is provided with a plurality of second installation grooves corresponding to the first installation grooves in one-to-one correspondence.
6. The polarization controller of claim 2, wherein, The adjustment drive adopts a rotary motor, and the adjustment seat adopts a worm gear.
7. The polarization controller of claim 6, wherein, The fiber device interface comprises a fiber collimator fixing tube and a light path adapter coaxially sleeved outside the fiber collimator fixing tube.
8. The polarization controller of claim 7, wherein, The module intermediate base is located between the module base and the module cover plate and is connected with the two respectively.
9. The polarization controller of claim 8, wherein, The module intermediate base is embedded in the module base, and the module base is connected with the module cover plate. The polarization controller comprises the polarization controller according to any one of claims 1-9.
10. A benchtop light polarization control device, characterized by,