Optical fiber end face cutting system, method and equipment and storage medium

Abstract

The invention discloses an optical fiber end face cutting system and method, electronic equipment and a storage medium, and the method comprises an ultrafast laser system which is used for focusing generated ultrafast laser to form light spots and controlling the light spots to act on the surface of an optical fiber to be cut; the visual positioning system is used for determining a cutting position and a cutting track on the to-be-cut optical fiber and acquiring a cutting state of the to-be-cut optical fiber; the motion system is used for controlling the light spots to move on the surface; and the programmable tension system is used for fixing the to-be-cut optical fiber and applying tension to the to-be-cut optical fiber. Optical fiber cutting treatment is carried out through ultrafast laser, non-contact cutting is achieved, damage to a cutting part is reduced, and meanwhile the cutting accuracy is improved through accurate positioning of a visual positioning system.

Description

Technical Field

[0001] The present application relates to the field of optical fiber cutting technology, and in particular to an optical fiber end face cutting system, method, electronic equipment and storage medium. Background Art

[0002] Optical fiber is mainly composed of a core and a cladding, which have different refractive indices, and a transparent coating on the outside. An optical fiber bundle is formed by tapering multiple optical fibers, and the gap in the middle is filled with special glue. Fusion splicing after cutting an optical fiber or optical fiber bundle is a critical step in using optical fibers. Both have relatively high requirements for the end face of the optical fiber or optical fiber bundle. The smoothness and angle after cutting are two important indicators for evaluating the end face.

[0003] At present, the most common optical fiber or optical fiber bundle cutting technologies include using mechanical tools and CO2 laser cutting, but both have certain disadvantages. For example, when using mechanical tools for cutting, the cutting knife directly touches the optical fiber or optical fiber bundle. Since a small incision is made on the optical fiber or optical fiber bundle by the cutting knife, and then the optical fiber is broken by applying tension, the optical fiber or optical fiber bundle is damaged to a certain extent, which can easily cause defects such as cracking of the optical fiber end face. For example, when using CO2 laser cutting, although non-contact cutting is achieved, since the optical fiber is cut by hot melting, the end face edge of the optical fiber or optical fiber bundle may be deformed. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a fiber end face cutting system, method, electronic device and storage medium to solve the technical problem of poor cutting effect when cutting optical fibers or optical fiber bundles in the related art.

[0005] In a first aspect, an embodiment of the present application provides a fiber end face cutting system, comprising:

[0006] An ultrafast laser system, used for focusing the generated ultrafast laser to form a light spot, and controlling the light spot to act on the surface of the optical fiber to be cut;

[0007] A visual positioning system, used to determine the cutting position and cutting trajectory on the optical fiber to be cut, and to obtain the cutting status of the optical fiber to be cut;

[0008] A motion system, for controlling the light spot to move on the surface;

[0009] The programmable tension system is used to fix the optical fiber to be cut and apply tension to the optical fiber to be cut.

[0010] In a second aspect, an embodiment of the present application provides a method for cutting an optical fiber end face, comprising:

[0011] Fixing the optical fiber to be cut on the magnetic clamp after the initialization process;

[0012] Obtaining a cutting position for cutting the optical fiber to be cut, and adjusting a light spot formed by focusing an ultrafast laser to be at the cutting position;

[0013] Rotating the optical fiber to be cut based on the magnetic clamp, and controlling the ultrafast laser to act on the optical fiber to be cut when the optical fiber is rotated to a specific position;

[0014] The ultrafast laser is turned off, and a pulling force is applied to both ends of the optical fiber to be cut until the optical fiber to be cut is broken.

[0015] In a third aspect, an embodiment of the present application provides an electronic device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in any one of the above-mentioned methods for cutting an optical fiber end face when executing the computer program.

[0016] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above-mentioned optical fiber end face cutting methods are implemented.

[0017] The embodiment of the present application provides a fiber end face cutting system, method, electronic device and storage medium, the system includes: an ultrafast laser system, which is used to focus the generated ultrafast laser to form a light spot, and control the light spot to act on the surface of the optical fiber to be cut; a visual positioning system, which is used to determine the cutting position and cutting trajectory on the optical fiber to be cut, and obtain the cutting state of the optical fiber to be cut; a motion system, which is used to control the movement of the light spot on the surface; a programmable tension system, which is used to fix the optical fiber to be cut, and apply tension to the optical fiber to be cut. The internal material of the optical fiber or optical fiber bundle is modified by ultrafast laser, and then tension is applied to both ends of the optical fiber to be cut to complete the cutting process of the optical fiber or optical fiber bundle, so as to achieve contactless cutting and reduce damage to the cutting part. At the same time, the precise positioning of the visual positioning system is used to improve the accuracy of cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a framework of an optical fiber end face cutting system provided in an embodiment of the present application;

[0019] Figure 2 It is a schematic block diagram of an ultrafast laser system provided in an embodiment of the present application;

[0020] Figure 3 It is a block diagram of a visual positioning system provided in an embodiment of the present application;

[0021] Figure 4 It is a schematic block diagram of a motion system provided in an embodiment of the present application;

[0022] Figure 5 It is a schematic block diagram of a programmable tension system provided in an embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of rotary cutting of an optical fiber to be cut provided in an embodiment of the present application;

[0024] Figure 7 It is a structural schematic diagram of a magnetic clamp provided in an embodiment of the present application;

[0025] Figure 8 It is a schematic diagram of the process of the optical fiber end face cutting method provided in an embodiment of the present application;

[0026] Fig. 9 is a structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0027] Fig.10 This is another structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] It should be understood that the various steps described in the method embodiments disclosed in the present application can be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present application is not limited in this respect.

[0030] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0031] In the related art, the most common optical fiber or optical fiber bundle cutting technologies include using mechanical cutters and using CO2 lasers for cutting, but both have certain disadvantages. For example, when using mechanical cutters for cutting, the cutting knife directly contacts the optical fiber or optical fiber bundle. Since a small incision is made on the optical fiber or optical fiber bundle by the cutting knife, and then the optical fiber is broken by applying tension, the optical fiber or optical fiber bundle is damaged to a certain extent, which can easily cause defects such as cracking of the optical fiber end face. For example, when using CO2 lasers for cutting, although non-contact cutting is achieved, since the optical fiber is cut by hot melting, the end face edge of the optical fiber or optical fiber bundle may be deformed.

[0032] In order to solve the technical problems existing in the related art, the present application embodiment provides a method for cutting the end face of an optical fiber, see Figure 1 , Figure 1 1 is a schematic diagram of a fiber end face cutting system provided in an embodiment of the present application, and the fiber end face cutting system 100 includes: an ultrafast laser system 101, a visual positioning system 102, a motion system 103 and a programmable tension system 104. The ultrafast laser system 101 is used to focus the generated ultrafast laser to form a light spot, and control the light spot to act on the surface of the optical fiber to be cut; the visual positioning system 102 is used to determine the cutting position and cutting trajectory on the optical fiber to be cut, and to obtain the cutting state of the optical fiber to be cut; the motion system 103 is used to control the movement of the light spot on the surface; the programmable tension system 104 is used to fix the optical fiber to be cut, and to apply tension to the optical fiber to be cut.

[0033] In one embodiment, the fiber end face cutting system 100 performs cutting processing on the optical fiber or optical fiber bundle by using the joint operation of the ultrafast laser system 101 and the programmable tension system 104. In the actual processing process, the optical fiber or optical fiber bundle is modified after the light spot formed by the laser in the ultrafast laser system 101 is focused, and the programmable tension system 104 applies corresponding stress along the modified area to achieve the effect of disconnection under the action of the stress, that is, the cutting processing of the optical fiber or optical fiber bundle is completed.

[0034] It should be noted that there are certain differences in the pre-processing part when processing optical fibers and optical fiber bundles, mainly in that the coating of the optical fiber needs to be removed before cutting the optical fiber, but there is no such process before cutting the optical fiber bundle. Therefore, for the convenience of description and understanding, in the following embodiments, the optical fiber end face cutting system 100 is described by taking the cutting of the optical fiber as an example when operating.

[0035] Specifically, the optical fiber end face cutting system 100 mainly includes four parts, namely, an ultrafast laser system 101, a visual positioning system 102, a motion system 103 and a programmable tension system 104. Through the combined operation of each part, the cutting process of the optical fiber to be cut is completed.

[0036] Exemplarily, the various parts of the optical fiber end face cutting system 100 are used to perform different tasks. When cutting an optical fiber or an optical fiber bundle, the internal material of the optical fiber or the optical fiber bundle is modified by using the light spot formed after focusing the ultrafast laser, and then a corresponding pulling force is applied to the optical fiber to be cut, and the modified optical fiber to be cut is disconnected under the action of the pulling force, so as to complete the cutting of the optical fiber to be cut.

[0037] In practical applications, when focusing and other processing are performed on the generated ultrafast laser, the size of the formed light spot can be controlled within a range of less than 2 μm.

[0038] When the light spot formed after the initial focusing by the ultrafast laser system 101 acts on the optical fiber to be cut, the internal material of the optical fiber to be cut is modified, and the internal material of the optical fiber to be cut is modified by controlling the light spot to move on the surface of the optical fiber to be cut. At this time, the movement of the light spot on the surface of the optical fiber to be cut is realized by using the operation of the motion system 103 in the optical fiber end face cutting system 100.

[0039] Exemplarily, when realizing the movement of the light spot on the surface of the optical fiber to be cut, there are two ways that can be used, one is to fix the position of the light spot in the world space and control the movement of the optical fiber to be cut, and the other is to fix the optical fiber to be cut and control the movement of the light spot. Both methods can complete the modification of the surface material at the cutting position, so the specific usage method is not limited. It should be noted that in each embodiment of the present application, the first method is used, that is, the position of the light spot in the world space is fixed and the movement of the optical fiber to be cut is controlled to complete the modification of the surface material of the optical fiber to be cut.

[0040] At the same time, when cutting optical fibers or optical fiber bundles, it is necessary to accurately determine the location and path of the cutting process, so accurate positioning is required. At this time, when determining the cutting position and cutting trajectory, the image is collected and acquired, and then analyzed to determine the cutting position and cutting trajectory of the optical fiber to be cut, and the position where the light spot acts is the cutting position, and the surface material on the cutting trajectory is modified at the same time.

[0041] Therefore, during the processing, the visual positioning system 102 in the optical fiber end face cutting system 100 is used to complete the positioning and other tasks. Specifically, the visual positioning system 102 obtains and analyzes the corresponding image to determine the cutting position and cutting trajectory for the cutting process on the optical fiber to be cut, and at the same time, the cutting state of the optical fiber to be cut can be obtained by analyzing the obtained image.

[0042] Exemplarily, the visual positioning system 102 acquires and analyzes images through the relevant image acquisition device set up, so as to acquire and display the cutting position and cutting status of the optical fiber or optical fiber bundle in real time for the operator to view. For the visual positioning system 102, at least the image acquisition and image analysis functions are provided, such as taking pictures of the optical fiber cutting area through a pre-set camera to obtain an image of the optical fiber cutting process, and using a pre-configured analysis module to analyze the captured image to determine whether the position to be cut coincides with the position of the light spot, and at the same time, the specific cutting situation, such as the cutting progress, can be obtained.

[0043] Finally, after the optical fiber to be cut is fixed, the light spot is aligned, and the cutting position and cutting trajectory are determined, when the cutting process is performed, it is still necessary to use a programmable tension component to process the optical fiber to be cut to ensure that the optical fiber to be cut can be better disconnected. Specifically, at this time, the programmable tension system 104 in the optical fiber end face cutting system 100 is used to process the optical fiber to be cut based on the determined cutting position and cutting trajectory, and the optical fiber to be cut also needs to be fixed. Therefore, the programmable tension system 104 also has the function of fixing the optical fiber to be cut, and then when processing, the optical fiber to be processed can be rotated. While realizing cutting along the cutting trajectory based on the light spot, the programmable tension system 104 can also process the optical fiber to be cut along the cutting trajectory.

[0044] Further, refer to Figure 2 , Figure 2 It is a block diagram of an ultrafast laser system provided in an embodiment of the present application, wherein the ultrafast laser system 101 comprises: an ultrafast laser 1011, a beam expander 1012, a reflector 1013 and a Bessel cutting head 1014. Specifically, the ultrafast laser 1011 is used to emit ultrafast laser; the beam expander 1012 is used to act on the ultrafast laser; the reflector 1013 is used to reflect the ultrafast laser after the beam expander acts on it; and the Bessel cutting head 1014 is used to receive the ultrafast laser after the reflection process and perform focusing process to output and form a light spot.

[0045] Exemplarily, the ultrafast laser system 101 is mainly used to form a light spot on the surface of the optical fiber to be cut, and then the internal material of the optical fiber to be cut is modified by the light spot. Therefore, firstly, the ultrafast laser is emitted by the ultrafast laser 1011, and then enters the Bessel cutting head 1014 for focusing through the action of the beam expander 1012 and a plurality of reflectors 1013, so as to output a corresponding light spot, and ensure that the diameter of the formed light spot can be less than 2μm.

[0046] Further, refer to Figure 3 , Figure 3 1 is a block diagram of a visual positioning system provided in an embodiment of the present application, wherein the visual positioning system 102 includes: an image acquisition module 1021 and an image analysis module 1022. Specifically, the image acquisition module 1021 is used to perform photo processing to obtain a cutting image of the optical fiber to be cut; the image analysis module 1022 is used to analyze and process the cutting image to determine the cutting position and cutting trajectory, and to analyze and process the cutting image to determine the action state of the light spot, and to analyze and process the cutting image to determine whether the cutting is completed, wherein the action state is used to determine whether the programmable tension system can break the optical fiber to be cut.

[0047] Exemplarily, when the visual positioning system 102 determines the cutting position and cutting trajectory on the optical fiber to be cut, and obtains the cutting state of the optical fiber to be cut, the image analysis is performed, so that the visual positioning system 102 has the ability to obtain images, such as shooting ability, and the acquired image can also be analyzed. Therefore, during the operation, the image acquisition module 1021 will perform photo processing to obtain a cutting image of the optical fiber to be cut, wherein the cutting image can be an image obtained by taking a photo of the cutting area before cutting, and can also be an image obtained by taking a photo of the cutting area during the cutting process. The former can be used to determine the cutting position and cutting trajectory of the optical fiber to be cut, and can also determine whether the cutting process can be performed, such as when the light spot is not at the cutting position and cutting trajectory, the cutting process cannot be performed, otherwise the cutting process can be performed, and the latter can be used to determine the cutting state of the optical fiber to be cut, such as whether the cutting is completed, and specifically, the cutting position can be determined by analyzing the cutting image to determine whether it has been disconnected.

[0048] Further, refer to Figure 4 , Figure 4It is a block diagram of a motion system provided by an embodiment of the present application, wherein the motion system 103 includes: a motion compensation module 1031 and a motion adjustment module 1032. Specifically, the motion compensation module 1031 is used to obtain the position change of the optical fiber to be cut at a preset spatial interval, and calculate the motion compensation value corresponding to the three axes according to the position change; the motion adjustment module 1032 is used to control the optical fiber to be cut to move to the target position, and control the three axes to move according to the motion compensation value until the light spot is at the cutting position.

[0049] Exemplarily, the motion system 103 is mainly used to control the light spot to move on the surface of the optical fiber to be cut and to move it to a suitable position. Specifically, the light spot needs to be moved to the corresponding cutting position before the cutting process is performed. That is, the motion system 103 realizes the positioning of the cutting position by combining with the visual positioning system 102 to ensure that the light spot is always in the cutting position and on the cutting trajectory. Specifically, when adjusting, firstly, the motion compensation values ​​corresponding to the three axes are calculated according to the current position of the light spot and the cutting position of the optical fiber to be cut, and then the three axes are controlled to adjust according to the obtained motion compensation values ​​of the three axes respectively until the light spot is in the cutting position, so that when the cutting process is performed, the programmable tension system 104 can accurately cut the optical fiber to be cut.

[0050] In actual application, when the motion system 103 controls the movement of the optical fiber to be cut, it moves in three-dimensional space, including the X-axis, Y-axis and Z-axis. Through the combined movement of the X-axis and the Y-axis, the light spot can be moved to the cutting position and the cutting trajectory, and the adjustment of the Z-axis can achieve the adjustment of the light spot size to ensure that the formed light spot acts on the internal material of the optical fiber to be cut.

[0051] Further, refer to Figure 5 , Figure 5 It is a block diagram of a programmable tension system provided in an embodiment of the present application, wherein the programmable tension system 104 comprises: a magnetic clamp 1041, a thrust shaft 1042 and a sensor 1043. Specifically, the magnetic clamp 1041 is used to move and fix the optical fiber to be cut, wherein the movement includes translation and rotation; the thrust shaft 1042 is used to control the tension acting on both ends of the optical fiber to be cut; the sensor 1043 is used to obtain the thrust force acting on the optical fiber to be cut according to the movement distance of the thrust shaft.

[0052] Exemplarily, the programmable tension system 104 has the functions of fixing the optical fiber to be cut and breaking the optical fiber to be cut, and when realizing different functions, the various parts need to cooperate with each other to realize them. Specifically, the magnetic clamp 1041 is used to fix the optical fiber to be cut to ensure the stability of the optical fiber to be cut. At the same time, in order to realize the processing of the optical fiber to be cut, the magnetic clamp 1041 can also rotate to drive the rotation of the optical fiber to be cut. The rotation of the magnetic clamp 1041 drives the rotation of the optical fiber to be cut, so that the formed light spot can be cut around the optical fiber to be cut along the cutting trajectory. At the same time, in order to complete the cutting, the thrust shaft 1042 can also be used to apply corresponding tension at both ends of the optical fiber to be cut, so that the optical fiber to be cut is disconnected at the position along the action of the laser light spot through the action of the tension.

[0053] In addition, the programmable tension system 104 also includes an initialization module, namely a thrust shaft initialization module, which is used to initialize and adjust the thrust shaft 1042 in the programmable tension system 104 to an initialization state after the optical fiber to be cut is cut, such as moving the thrust shaft 1042 to an initial position and opening the magnetic clamp 1041.

[0054] Furthermore, after the cutting process of the optical fiber to be cut is completed, the cut optical fiber to be cut can be moved and stored in the corresponding storage space. Therefore, the programmable tension system 104 can also include an optical fiber storage module for transferring the optical fiber to be cut that has been cut and transferring it to a specific storage space. The optical fiber storage module can also have the ability to grab and move optical fibers.

[0055] In practical applications, when cutting the optical fiber to be cut, refer to Figure 6 , Figure 6 This is a schematic diagram of the rotary cutting of the optical fiber to be cut provided by the embodiment of the present application. When the Bessel cutting head 1014 in the ultrafast laser system 101 outputs laser, it will be on the cutting track of the optical fiber to be cut. At this time, the magnetic clamp 1041 can apply corresponding tension to both ends of the optical fiber to be cut when fixing the optical fiber to be cut. Then, the magnetic clamp 1041 is rotated to drive the optical fiber to be cut to rotate. The thrust shaft 1042 applies corresponding tension to both ends of the optical fiber to be cut. After the internal material of the optical fiber to be cut is modified, the optical fiber to be cut is broken based on the action of the tension, that is, the cutting process of the optical fiber to be cut is completed.

[0056] Further, refer to Figure 7 , Figure 7It is a structural schematic diagram of the magnetic clamp provided in an embodiment of the present application, wherein the magnetic clamp 1041 includes a clamp base 10411, a V-shaped groove 10412, a rubber pressure block 10413, an upper cover 10414 and a screw cover 10415, and when fixing the optical fiber to be cut, the optical fiber to be cut is placed on the V-shaped groove 10412, and the optical fiber to be cut is fixed in the V-shaped groove 10412 by the action of the upper cover 10414, such as by the action of the screw cover 10415, the clamp base 10411 and the rubber pressure block 10413 are made to fit together.

[0057] It should be noted that in the actual application process, when controlling the operation of the optical fiber end face cutting system, the operator can operate on a computer or tablet computer and other devices, and control the ultrafast laser system 101, the visual positioning system 102, the motion system 103 and the programmable tension system 104 through the action of the controller to complete the cutting of the optical fiber to be cut.

[0058] Further, refer to Figure 8 , Figure 8 It is a schematic diagram of the process of the optical fiber end face cutting method provided in an embodiment of the present application, wherein the step includes step S801 to step S804.

[0059] Step S801, fixing the optical fiber to be cut on the magnetic clamp after the initialization process;

[0060] Step S802, obtaining a cutting position for cutting the optical fiber to be cut, and adjusting the light spot formed by focusing the ultrafast laser to be at the cutting position;

[0061] Step S803, rotating the optical fiber to be cut based on the magnetic clamp, and controlling the ultrafast laser to act on the optical fiber to be cut when it rotates to a specific position;

[0062] Step S804, turning off the ultrafast laser, and applying a pulling force to both ends of the optical fiber to be cut until the optical fiber to be cut is broken.

[0063] Specifically, when the optical fiber to be cut is cut, the optical fiber to be cut is fixed on the magnetic clamp after the initialization process is completed, and then the cutting position and cutting trajectory of the optical fiber to be cut are obtained, and the light spot formed by the ultrafast laser is adjusted to focus on the determined cutting position and cutting trajectory, and then when moving along the cutting trajectory, the magnetic clamp is controlled to rotate so that the light spot moves on the surface of the optical fiber to be cut, thereby completing the modification of the internal material of the optical fiber to be cut. At the same time, a certain pulling force is applied to both ends of the optical fiber to be cut, and the optical fiber to be cut is pulled apart along the cutting path through the action of the tensile stress. The pulled apart optical fiber to be cut (i.e., the optical fiber to be cut that has been cut) can be transferred to the corresponding storage space so that the next optical fiber can be cut.

[0064] It should be noted that when cutting an optical fiber, it is also necessary to remove the coating of the optical fiber, but this operation does not exist for an optical fiber bundle, that is, the optical fiber to be cut described above can be a single optical fiber or an optical fiber bundle.

[0065] For example, when cutting an optical fiber to be cut, the cutting position, such as the length of the optical fiber, is first determined on the optical fiber to be cut. Then, when the optical fiber to be cut is fixed on the magnetic clamp, the magnetic clamp can apply a certain pulling force to the optical fiber to be cut. At the same time, the optical fiber to be cut can be driven to rotate during the cutting process, so that the light spot focused by the ultrafast laser can move along the cutting trajectory.

[0066] In practical applications, combined with Figures 1 to 7 When the structure shown in the figure is used for cutting the optical fiber to be cut, the processing process includes: placing the optical fiber or optical fiber bundle with the coating removed on the magnetic clamp 1041 of the programmable tension system 104, and setting the Y-axis motion trajectory of the three-dimensional electric motion axis in the motion system 103, the starting position of the trajectory motion is close to the center of the upper surface of the position to be cut, and the length is less than 1 / 2 of the diameter of the optical fiber, then, the cutting position is located by the visual system 102, the focus point of the ultrafast laser beam is set at the center of the positive surface of the optical fiber or optical fiber bundle, and along the positive direction of the optical fiber, perpendicular to the optical fiber, and a suitable tension is set on the programmable tension system 104, so as to act At both ends of the optical fiber to be cut, the optical fiber to be cut is controlled to maintain a straight state, and then the three-dimensional electric motion axis is controlled to move to realize the movement of the light spot on the optical fiber to be cut, and the modification of the internal material of the optical fiber to be cut is completed. Specifically, the rotation of the magnetic clamp 1041 drives the optical fiber to be cut to rotate, wherein, in the three-dimensional electric motion axis, the Z axis controls the focus position of the laser, and the laser emits light according to the Y axis motion trajectory. The Y axis motion matches the laser parameters, and the PSO mode is used for control to realize the rotation of the optical fiber to be cut and the modification of the internal material of the optical fiber to be cut by using laser spots under different states. After the modification, that is, the light spot effect ends, the laser effect stops, and then the programmable tension system 104 continuously increases the tension on both ends of the optical fiber until the optical fiber is broken due to the tension, and the tension value instantly drops to 0. At the same time, the magnetic clamp can be opened to remove the optical fiber when the tension value instantly drops to zero.

[0067] In addition, when the optical fiber to be cut is cut, the cutting process may also include: placing the optical fiber or optical fiber bundle on the magnetic clamp 1041 of the programmable tension system 104, locating the cutting position for cutting the optical fiber or optical fiber bundle through the visual positioning system 102, setting the position of the three-dimensional electric motion axis in the motion system 103 so that the ultrafast laser beam is focused on the center of the positive surface of the required cutting position of the optical fiber or optical fiber bundle, and setting the values ​​of process parameters such as the ultrafast laser power, and then setting a suitable tension for the programmable tension system 104 so that the optical fiber or optical fiber bundle is in a straightened state, and controlling the rotation of the optical fiber or optical fiber bundle, and the rotation speed matches the laser light output, while the laser light output, the angular displacement position is output synchronously, and then when the laser action stops, controlling the programmable tension system 104 to continuously increase the tension on both ends of the optical fiber or optical fiber bundle until the optical fiber or optical fiber bundle is disconnected along the position where the laser acts, at which time the tension value instantly drops to zero, and finally opening the magnetic clamp to remove the optical fiber.

[0068] In summary, the present application discloses a fiber end face cutting system, which includes: an ultrafast laser system for focusing the generated ultrafast laser to form a light spot, and controlling the light spot to act on the surface of the optical fiber to be cut; a visual positioning system for determining the cutting position and cutting trajectory on the optical fiber to be cut, and obtaining the cutting state of the optical fiber to be cut; a motion system for controlling the movement of the light spot on the surface; a programmable tension system for fixing the optical fiber to be cut, and applying tension to the optical fiber to be cut. The internal material of the optical fiber or optical fiber bundle is modified by ultrafast laser, and then tension is applied at both ends of the optical fiber to be cut to complete the cutting process of the optical fiber or optical fiber bundle, thereby realizing contactless cutting and reducing damage to the cutting part. At the same time, the precise positioning of the visual positioning system is used to improve the accuracy of cutting.

[0069] According to the system described in the above embodiment, the optical fiber end face cutting system of this embodiment can be implemented as an independent entity, or integrated into an electronic device, such as a terminal, which can include a mobile phone, a tablet computer, etc.

[0070] For further information, see Fig. 9 , Fig. 9 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application, and the electronic device may be a mobile terminal such as a smart phone, a tablet computer, or the like. Fig. 9 As shown, the electronic device 900 includes a processor 901 and a memory 902. The processor 901 is electrically connected to the memory 902.

[0071] The processor 901 is the control center of the electronic device 900. It uses various interfaces and lines to connect various parts of the entire electronic device. It executes various functions of the electronic device 900 and processes data by running or loading applications stored in the memory 902 and calling data stored in the memory 902, thereby monitoring the electronic device 900 as a whole.

[0072] In this embodiment, the processor 901 in the electronic device 900 will load the instructions corresponding to the processes of one or more applications into the memory 902 according to the following steps, and the processor 901 will run the application stored in the memory 902, thereby implementing any step in the optical fiber end face cutting method provided in the above embodiment.

[0073] The electronic device 900 can implement the steps in any embodiment of the optical fiber end face cutting method provided in the embodiments of the present application, and therefore can achieve the beneficial effects that can be achieved by any optical fiber end face cutting method provided in the embodiments of the present application. Please refer to the previous embodiments for details and will not be repeated here.

[0074] For further information, see Fig.10 , Fig.10 is another structural schematic diagram of an electronic device provided in an embodiment of the present application, such as Fig.10 As shown, Fig.10 The specific structural block diagram of the electronic device provided in the embodiment of the present application is shown, and the electronic device can be used to implement the optical fiber end face cutting method provided in the above embodiment. The electronic device 1000 can be a mobile terminal such as a smart phone or a laptop computer.

[0075] The RF circuit 1010 is used to receive and send electromagnetic waves, realize the mutual conversion between electromagnetic waves and electrical signals, and thus communicate with a communication network or other devices. The RF circuit 1010 may include various existing circuit elements for performing these functions, such as antennas, radio frequency transceivers, digital signal processors, encryption / decryption chips, user identity module (SIM) cards, memories, etc. The RF circuit 1010 can communicate with various networks such as the Internet, corporate intranets, wireless networks, or communicate with other devices through wireless networks. The above-mentioned wireless networks may include cellular telephone networks, wireless local area networks, or metropolitan area networks. The above-mentioned wireless networks can use various communication standards, protocols and technologies, including but not limited to Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wireless Fidelity (Wi-Fi) (such as Institute of Electrical and Electronics Engineers standards IEEE 802.11a, IEEE 802.11b, IEEE802.11g and / or IEEE802.11n), Voice over Internet Protocol (VoIP), Worldwide Interoperability for Microwave Access (Wi-Max), other protocols for email, instant messaging and short messages, and any other suitable communication protocols, even those that have not yet been developed.

[0076] The memory 1020 can be used to store software programs and modules, such as the program instructions / modules corresponding to the optical fiber end face cutting method in the above-mentioned embodiment. The processor 1080 executes various functional applications and the optical fiber end face cutting method by running the software programs and modules stored in the memory 1020.

[0077] The memory 1020 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 1020 may further include a memory remotely arranged relative to the processor 1080, and these remote memories may be connected to the electronic device 1000 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0078] The input unit 1030 can be used to receive uploaded digital or character information, and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, the input unit 1030 may include a touch-sensitive surface 1031 and other input devices 1032. The touch-sensitive surface 1031, also known as a touch display screen or touchpad, can collect user touch operations on or near it (such as operations performed by users using fingers, styluses, or any other suitable objects or accessories on or near the touch-sensitive surface 1031), and drive corresponding connection devices according to a pre-set program. Optionally, the touch-sensitive surface 1031 may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 1080, and can receive and execute commands sent by the processor 1080. In addition, the touch-sensitive surface 1031 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch-sensitive surface 1031, the input unit 1030 may further include other input devices 1032. Specifically, the other input devices 1032 may include, but are not limited to, one or more of a physical keyboard, a function key (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, and the like.

[0079] The display unit 1040 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the electronic device 1000, which can be composed of graphics, text, icons, videos and any combination thereof. The display unit 1040 may include a display panel 1041, and optionally, the display panel 1041 may be configured in the form of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), etc. Further, the touch-sensitive surface 1031 may cover the display panel 1041, and when the touch-sensitive surface 1031 detects a touch operation on or near it, it is transmitted to the processor 1080 to determine the type of the touch event, and then the processor 1080 provides corresponding visual output on the display panel 1041 according to the type of the touch event. Although in the figure, the touch-sensitive surface 1031 and the display panel 1041 are implemented as two independent components to implement input and output functions, in some embodiments, the touch-sensitive surface 1031 and the display panel 1041 can be integrated to implement input and output functions.

[0080] The electronic device 1000 may also include at least one sensor 1050, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1041 according to the brightness of the ambient light, and the proximity sensor may generate an interrupt when the flip cover is closed or closed. As a type of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary, which can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that can also be configured in the electronic device 1000, they will not be repeated here.

[0081] The audio circuit 1060, the speaker 1061, and the microphone 1062 can provide an audio interface between the user and the electronic device 1000. The audio circuit 1060 can transmit the received audio data to the speaker 1061 after converting the received audio data into an electrical signal, which is converted into a sound signal for output by the speaker 1061; on the other hand, the microphone 1062 converts the collected sound signal into an electrical signal, which is received by the audio circuit 1060 and converted into audio data, and then the audio data is processed by the output processor 1080 and sent to, for example, another terminal through the RF circuit 1010, or the audio data is output to the memory 1020 for further processing. The audio circuit 1060 may also include an earplug jack to provide communication between an external headset and the electronic device 1000.

[0082] The electronic device 1000 can help the user receive requests, send information, etc. through the transmission module 1070 (such as a Wi-Fi module), which provides the user with wireless broadband Internet access. Although the transmission module 1070 is shown in the figure, it is understandable that it is not a necessary component of the electronic device 1000 and can be omitted as needed without changing the essence of the invention.

[0083] The processor 1080 is the control center of the electronic device 1000. It uses various interfaces and lines to connect various parts of the entire mobile phone. By running or executing software programs and / or modules stored in the memory 1020, and calling data stored in the memory 1020, it executes various functions of the electronic device 1000 and processes data, thereby monitoring the electronic device as a whole. Optionally, the processor 1080 may include one or more processing cores; in some embodiments, the processor 1080 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It can be understood that the above-mentioned modem processor may not be integrated into the processor 1080.

[0084] The electronic device 1000 also includes a power supply 1090 (such as a battery) for supplying power to various components. In some embodiments, the power supply can be logically connected to the processor 1080 through a power management system, so that the power management system can manage charging, discharging, and power consumption management. The power supply 1090 can also include any components such as one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, and power status indicators.

[0085] Although not shown, the electronic device 1000 also includes a camera (such as a front camera, a rear camera), a Bluetooth module, etc., which will not be described in detail here. Specifically in this embodiment, the display unit of the electronic device is a touch screen display, and the mobile terminal also includes a memory, and one or more programs, wherein one or more programs are stored in the memory, and are configured to be executed by one or more processors to implement any step of the optical fiber end face cutting method provided in the above embodiment.

[0086] In specific implementation, the above modules can be implemented as independent entities, or can be arbitrarily combined and implemented as the same or several entities. The specific implementation of the above modules can be found in the previous method embodiments, which will not be repeated here.

[0087] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by controlling related hardware through instructions, and the instructions can be stored in a computer-readable storage medium and loaded and executed by a processor. To this end, an embodiment of the present application provides a storage medium, which stores multiple instructions, and the instructions can be executed by the processor to implement any step in the optical fiber end face cutting method provided in the above embodiments.

[0088] The storage medium may include: a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0089] Since the instructions stored in the storage medium can execute the steps in any embodiment of the optical fiber end face cutting method provided in the embodiments of the present application, the beneficial effects that can be achieved by any optical fiber end face cutting method provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0090] The above is a detailed introduction to a method, device, electronic device and storage medium for cutting an optical fiber end face provided by the embodiment of the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and its core idea of ​​the present application. At the same time, for technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application. Moreover, for ordinary technicians in this technical field, without departing from the principle of the present application, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present application.

Claims

1. An optical fiber end face cutting system, characterized in that: include: An ultrafast laser system, used for focusing the generated ultrafast laser to form a light spot, and controlling the light spot to act on the surface of the optical fiber to be cut; A visual positioning system, used to determine the cutting position and cutting trajectory on the optical fiber to be cut, and to obtain the cutting status of the optical fiber to be cut; A motion system, for controlling the light spot to move on the surface; The programmable tension system is used to fix the optical fiber to be cut and apply tension to the optical fiber to be cut.

2. The system according to claim 1, characterized in that The ultrafast laser system comprises: Ultrafast laser, used to emit ultrafast laser light; A beam expander, used for acting on the ultrafast laser; A reflecting mirror, used for reflecting the ultrafast laser after being acted upon by the beam expander; The Bessel cutting head is used to receive the ultrafast laser after reflection processing and focus the output to form a light spot.

3. The system according to claim 1, characterized in that The visual positioning system comprises: An image acquisition module, used for taking photos to obtain a cutting image of the optical fiber to be cut; An image analysis module is used to analyze and process the cutting image to determine the cutting position and cutting trajectory, analyze and process the cutting image to determine the action state of the light spot, and analyze and process the cutting image to determine whether the cutting is completed, wherein the action state is used to determine whether the programmable tension system can cut the optical fiber to be cut.

4. The system according to claim 1, characterized in that The motion system comprises: A motion compensation module, used to obtain the position change of the optical fiber to be cut at a preset spatial interval, and calculate the motion compensation values ​​corresponding to the three axes according to the position change; The motion adjustment module is used to control the optical fiber to be cut to move to the target position, and control the three axes to move according to the motion compensation value until the light spot is at the cutting position.

5. The system according to claim 4, characterized in that The programmable tension system comprises: A magnetic clamp, used to move and fix the optical fiber to be cut, wherein the movement includes translation and rotation; A thrust shaft, used for controlling the pulling force applied to both ends of the optical fiber to be cut; The sensor is used to obtain the thrust force acting on the optical fiber to be cut according to the movement distance of the thrust shaft.

6. The system according to claim 5, characterized in that The programmable tension system further comprises: The thrust shaft initialization module is used to adjust the thrust shaft to an initial state when the cutting of the optical fiber to be cut is completed.

7. The system according to claim 1, characterized in that The system further comprises: The optical fiber storage module is used to transfer the optical fiber to be processed after cutting to the corresponding storage space.

8. A method for cutting an optical fiber end face, characterized in that: include: Fixing the optical fiber to be cut on the magnetic clamp after the initialization process; Obtaining a cutting position for cutting the optical fiber to be cut, and adjusting a light spot formed by focusing an ultrafast laser to be at the cutting position; Rotating the optical fiber to be cut based on the magnetic clamp, and controlling the ultrafast laser to act on the optical fiber to be cut when the optical fiber is rotated to a specific position; The ultrafast laser is turned off, and a pulling force is applied to both ends of the optical fiber to be cut until the optical fiber to be cut is broken.

9. An electronic device, characterized in that: The electronic device comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, and the processor implements the steps in the method according to claim 8 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the method according to claim 8 are implemented.

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