阅读说明：本技术 光纤耦合仪及光纤耦合仪的控制方法 (Optical fiber coupler and control method thereof ) 是由 肖经 史德海 蔡凯达 于 2019-11-18 设计创作，主要内容包括：本发明提出了一种光纤耦合仪及光纤耦合仪的控制方法,其中光纤耦合仪包括：坐标调节组件,坐标调节组件上设置有第一夹持件；角度调节组件,与坐标调节组件相对设置,角度调节组件上设置有第二夹持件；图像获取组件,设置在坐标调节组件上,图像获取组件的图像获取范围至少覆盖第一夹持件及第二夹持件所处位置；光功率检测组件包括光发射器及光功率检测器,光发射器和光功率检测器中的一个设置在坐标调节组件上,另一个设置在角度调节组件上以及控制器。本发明能够自动化调节确定光纤耦合位置,在生产中能够提高光纤耦合产品的一致性,通过初步调节与精度调节,能够明确光纤耦合位置,提高成品率,进而能够提高生产效率,降低生产成本。(The invention provides an optical fiber coupler and a control method thereof, wherein the optical fiber coupler comprises the following steps: the coordinate adjusting assembly is provided with a first clamping piece; the angle adjusting assembly is arranged opposite to the coordinate adjusting assembly, and a second clamping piece is arranged on the angle adjusting assembly; the image acquisition assembly is arranged on the coordinate adjusting assembly, and the image acquisition range of the image acquisition assembly at least covers the positions of the first clamping piece and the second clamping piece; the optical power detection component comprises an optical emitter and an optical power detector, one of the optical emitter and the optical power detector is arranged on the coordinate adjusting component, the other one of the optical emitter and the optical power detector is arranged on the angle adjusting component, and the controller. The invention can automatically adjust and determine the optical fiber coupling position, can improve the consistency of optical fiber coupling products in production, can determine the optical fiber coupling position through preliminary adjustment and precision adjustment, improves the yield, further can improve the production efficiency and reduce the production cost.)

1. A fiber optic coupler, comprising:

the coordinate adjusting assembly is provided with a first clamping piece;

the angle adjusting assembly is arranged opposite to the coordinate adjusting assembly, and a second clamping piece is arranged on the angle adjusting assembly;

the image acquisition assembly is arranged on the coordinate adjusting assembly, and the image acquisition range of the image acquisition assembly at least covers the positions of the first clamping piece and the second clamping piece;

the optical power detection assembly comprises an optical emitter and an optical power detector, one of the optical emitter and the optical power detector is arranged on the coordinate adjusting assembly, and the other one of the optical emitter and the optical power detector is arranged on the angle adjusting assembly;

the controller is connected with the image acquisition assembly, the optical power detection assembly, the coordinate adjusting assembly and the angle adjusting assembly, and is used for adjusting the position of the first clamping piece based on the image information acquired by the image acquisition assembly and adjusting the angle between the second clamping piece and the first clamping piece based on the detection result of the optical power detector.

2. The fiber optic coupler of claim 1, wherein the coordinate adjustment assembly comprises:

an XY two-dimensional displacement stage;

the Z-axis displacement table is arranged on the XY two-dimensional displacement table in a sliding manner;

the first clamping piece is arranged at one end, close to the angle adjusting assembly, of the Z-axis displacement table, and the second clamping piece is arranged on one side, close to the Z-axis displacement table, of the angle adjusting assembly.

3. The fiber optic coupler of claim 2, wherein the image acquisition assembly comprises:

the suspension arm is arranged on one side of the XY two-dimensional displacement table;

a first industrial camera disposed on the suspension arm;

a second industrial camera disposed on the suspension arm;

a supplementary light source disposed on the coordinate adjustment assembly or the angle adjustment assembly, the supplementary light source disposed toward the first industrial camera and the second industrial camera;

wherein an image acquisition direction of the first industrial camera is perpendicular to an image acquisition direction of the second industrial camera.

4. The fiber optic coupler of claim 3, wherein the supplemental light source is a white light source.

5. The fiber optic coupler of any of claims 1-4, wherein the angular adjustment assembly is a two-dimensional motorized angular displacement stage.

6. The fiber optic coupler of any of claims 1-4, further comprising:

a shockproof flat plate;

and the linear guide rail is arranged on the shockproof flat plate, and the coordinate adjusting assembly and the angle adjusting assembly are arranged on the linear guide rail in a sliding manner.

7. The fiber optic coupler of claim 6, further comprising:

the first translation platform is arranged on the linear guide rail in a sliding manner;

the second translation platform is arranged on the linear guide rail in a sliding manner;

one of the coordinate adjusting assembly and the angle adjusting assembly is arranged on the first translation platform, and the other one of the coordinate adjusting assembly and the angle adjusting assembly is arranged on the second translation platform.

8. A control method for an optical fiber coupler according to any one of claims 1 to 7, the control method comprising:

starting an image acquisition assembly to acquire image information of a coupling position of a first optical fiber arranged on a first clamping piece and a second optical fiber arranged on a second clamping piece;

based on the image information, adjusting the position of the first clamping piece through a coordinate adjusting assembly to enable the first optical fiber to be in butt joint with the second optical fiber;

starting an optical power detection assembly, enabling light generated by an emitter to enter the optical power detector through the first optical fiber and the second optical fiber, and enabling the optical power detector to acquire optical power detection information;

determining a coupling position based on the optical power detection information.

9. The method of claim 8, wherein adjusting the position of the first clamping member based on the image information via a coordinate adjustment assembly such that the first optical fiber is docked with the second optical fiber comprises:

extracting edge features of the first optical fiber and the second optical fiber in the image information;

acquiring a deviation parameter based on the edge characteristics;

and adjusting the position of the first clamping piece based on the deviation parameter until the edge characteristic of the first optical fiber is parallel to or on the same straight line with the edge characteristic of the second optical fiber.

10. The control method of claim 8, wherein determining the coupling position based on the optical power detection information comprises:

starting the optical power detection component in real time;

determining an adjusting range based on a detection result of the optical power detection assembly when the position of the first clamping piece is adjusted through the coordinate adjusting assembly so that the first optical fiber is in butt joint with the second optical fiber;

adjusting an angle between the second clamping piece and the first clamping piece through the angle adjusting assembly based on the adjusting range;

traversing the optical power detection information acquired by the optical power detector in the adjusting range;

and determining the coupling position based on the maximum optical power detection information acquired in the adjustment range.

Technical Field

The invention relates to the field of communication, in particular to an optical fiber coupler and a control method of the optical fiber coupler.

Background

In the current domestic optical fiber production, the coupling of the optical fiber and the optical fiber is mostly finished manually or semi-automatically, and in the production mode, the problems of poor repeatability, poor performance consistency, low yield, low production efficiency and high production cost exist in the product.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, a first aspect of the invention provides a fiber optic coupler.

The invention provides a control method of the optical fiber coupler.

In view of the above, according to a first aspect of the present invention, there is provided a fiber optic coupler, comprising: the coordinate adjusting assembly is provided with a first clamping piece; the angle adjusting assembly is arranged opposite to the coordinate adjusting assembly, and a second clamping piece is arranged on the angle adjusting assembly; the image acquisition assembly is arranged on the coordinate adjusting assembly, and the image acquisition range of the image acquisition assembly at least covers the positions of the first clamping piece and the second clamping piece; the optical power detection assembly comprises an optical emitter and an optical power detector, one of the optical emitter and the optical power detector is arranged on the coordinate adjusting assembly, and the other one of the optical emitter and the optical power detector is arranged on the angle adjusting assembly; the controller is connected to the image acquisition assembly, the optical power detection assembly, the coordinate adjusting assembly and the angle adjusting assembly, and the controller is used for adjusting the position of the first clamping piece based on the image information acquired by the image acquisition assembly and adjusting the angle between the second clamping piece and the first clamping piece based on the detection result of the optical power detector.

In the optical fiber coupler, optical fibers to be coupled are respectively clamped on a first clamping piece and a second clamping piece in the working process; the image acquisition assembly shoots and acquires image information of an optical fiber coupling position, and the controller adjusts the position of an optical fiber arranged on the first clamping piece through the coordinate adjusting assembly based on the image information to primarily adjust the position of the optical fiber so as to enable the optical fiber to be coupled to be in butt joint; the light generated by the light emitter enters the optical power detector after passing through the optical fiber to be coupled, and the controller adjusts the angle of the optical fiber arranged on the first clamping piece through the angle adjusting component based on the detection result of the optical power detector, so that the optical power after passing through the optical fiber to be coupled is close to the power of the light generated by the light emitter, the precision is adjusted, and the coupling position is further determined. The optical fiber coupler provided by the invention automatically adjusts and determines the optical fiber coupling position through the arrangement of the image acquisition component and the optical power detection component, can improve the consistency of optical fiber coupling products in production, can determine the optical fiber coupling position through primary adjustment and precision adjustment, improves the yield, further can improve the production efficiency and reduce the production cost.

In addition, according to the optical fiber coupler in the above technical solution provided by the present invention, the following additional technical features may also be provided:

in the above technical solution, further, the coordinate adjustment assembly includes: an XY two-dimensional displacement stage; the Z-axis displacement platform is arranged on the XY two-dimensional displacement platform in a sliding manner; the first clamping piece is arranged at one end, close to the angle adjusting assembly, of the Z-axis displacement table, and the second clamping piece is arranged on one side, close to the Z-axis displacement table, of the angle adjusting assembly.

In this technical scheme, can drive Z axle displacement platform through setting up of XY two-dimensional displacement platform and remove on X axle and Y axle, make first holder can remove on the Z axle through setting up of Z axle displacement platform, and then can adjust the coordinate position that first holder is located through coordinate adjusting part, be convenient for make the optic fibre of setting on first holder dock with the optic fibre on the second holder, further improve the production efficiency of fiber coupling.

In any of the above technical solutions, further, the image capturing assembly includes: the suspension arm is arranged on one side of the XY two-dimensional displacement table; a first industrial camera disposed on the suspension arm; the second industrial camera is arranged on the suspension arm; the supplementary light source is arranged on the coordinate adjusting assembly or the angle adjusting assembly and faces the first industrial camera and the second industrial camera; wherein the image acquisition direction of the first industrial camera is perpendicular to the image acquisition direction of the second industrial camera.

In this technical scheme, two industrial cameras have been set up, can acquire two sets of image information of the different angles of fiber coupling position department through setting up of two industrial cameras, further, the controller is based on two sets of image information, can adjust the position of optic fibre on the first holder through the coordinate adjusting part, make optic fibre on the first holder and the optic fibre on the second holder be in the intersection of two kinds of image information, accomplish the preliminary adjustment to the coupling optical fibre position, then only need carry out angle modulation to the optic fibre of accomplishing preliminary adjustment, can confirm the coupling position, can improve the efficiency that the preliminary adjustment of fiber coupling is greatly, and the production efficiency is improved, and then reduction in production cost.

Specifically, the number of the suspension arms may be two, the suspension arms are arranged on a shockproof flat plate for mounting and fixing the coordinate adjusting assembly and the angle adjusting assembly and located between the coordinate adjusting assembly and the angle adjusting assembly, the first industrial camera is arranged on one of the suspension arms, the image acquisition direction faces a ZOY plane formed by the XY two-dimensional displacement table of the coordinate adjusting assembly and the Z-axis displacement table, the second industrial camera is arranged on the other suspension arm, and the image acquisition direction faces an XOY plane formed by the XY two-dimensional displacement table of the coordinate adjusting assembly and the Z-axis displacement table.

In this technical scheme, through the setting of light filling light source, can make first industry camera and the image information that second industry camera was shot and is acquireed more clear, be convenient for more make clear the position of optic fibre in image information, be convenient for adjust the position of the optic fibre of setting on first holder through the coordinate adjusting part, carry out the preliminary regulation of optic fibre position, further improve the efficiency that the preliminary regulation of optic fibre coupling is advanced, improve production efficiency, and then reduction in production cost.

In the technical scheme, the image acquisition direction of the first industrial camera is perpendicular to the image acquisition direction of the second industrial camera, so that the setting positions of the first industrial camera and the second industrial camera can be conveniently determined, the first industrial camera and the second industrial camera are arranged on the suspension arm positioned on one side of the XY two-dimensional displacement table, the shooting angle of the first industrial camera and the shooting angle of the second industrial camera are adaptive to the setting positions of the first clamping piece and the second clamping piece, the image information of the optical fiber coupling position can be conveniently captured, and the characteristic of the optical fiber coupling position in the image information is more obvious.

In the technical scheme, the arrangement positions and the image acquisition directions of the first industrial camera and the second industrial camera are convenient to adjust through the arrangement of the suspension arm.

In any of the above technical solutions, further, the supplementary light source is a white light source.

In this technical scheme, the supplementary light source is the white light source, is convenient for discern the marginal characteristic of optic fibre in image information, is convenient for adjust the position of the optic fibre of setting on first holder through the coordinate adjusting part, carries out the preliminary adjustment of optic fibre position, further improves the efficiency that the preliminary adjustment of optic fibre coupling, improves production efficiency, and then reduction in production cost.

In any of the above technical solutions, further, the angle adjusting assembly is a two-dimensional electric angle displacement table.

In this technical scheme, the position of the optic fibre of setting on first holder is adjusted through the coordinate adjusting part in the optical fibre coupling, accomplishes the preliminary regulation back in optic fibre position, and the butt joint is accomplished to optic fibre on the first holder and the optic fibre on the second holder, only needs to adjust optic fibre coupling angle and can confirm the coupling position, consequently selects the electronic angle displacement platform of two-dimentional with the angle adjusting part, can reduce investment cost.

In any one of the above technical solutions, further, the method further includes: a shockproof flat plate; and the linear guide rail is arranged on the shockproof flat plate, and the coordinate adjusting assembly and the angle adjusting assembly are arranged on the linear guide rail in a sliding manner.

In the technical scheme, the coordinate adjusting assembly and the angle adjusting assembly are arranged on the linear guide rail in a sliding manner, so that the distance between the coordinate adjusting assembly and the angle adjusting assembly can be conveniently adjusted, and the optical fiber on the first clamping piece and the optical fiber on the second clamping piece can be conveniently close to each other; through the setting of the shockproof flat plate, the influence of external vibration on optical fiber coupling can be reduced, the yield is further improved, the production efficiency is improved, and the production cost is reduced.

In any one of the above technical solutions, further, the method further includes: the first translation platform is arranged on the linear guide rail in a sliding manner; the second translation platform is arranged on the linear guide rail in a sliding manner; one of the coordinate adjusting assembly and the angle adjusting assembly is arranged on the first translation platform, and the other one of the coordinate adjusting assembly and the angle adjusting assembly is arranged on the second translation platform.

In the technical scheme, the coordinate adjusting assembly and the angle adjusting assembly are arranged on the linear guide rail in a sliding mode through the first translation table and the second translation table, and the coordinate adjusting assembly and the angle adjusting assembly can be driven to be close to or far away from each other through the first translation table and the second translation table, so that the optical fiber coupler is more convenient to use.

According to a second aspect of the present invention, there is provided a method for controlling an optical fiber coupler, which is used for the optical fiber coupler according to any one of the above technical solutions, the method comprising: starting an image acquisition assembly to acquire image information of a coupling position of a first optical fiber arranged on a first clamping piece and a second optical fiber arranged on a second clamping piece; based on the image information, the position of the first clamping piece is adjusted through the coordinate adjusting assembly, so that the first optical fiber is in butt joint with the second optical fiber; starting an optical power detection assembly, enabling light generated by an emitter to enter an optical power detector through a first optical fiber and a second optical fiber, and enabling the optical power detector to acquire optical power detection information; based on the optical power detection information, a coupling position is determined.

In this embodiment, the control method is the optical fiber coupler according to any one of the above embodiments, and therefore the control method has all the advantageous technical effects of the optical fiber coupler.

The control method provided by the invention primarily adjusts the position of the optical fiber coupling through the image information, and then adjusts the precision based on the detection result of the optical power detector, thereby ensuring the consistency of products, improving the yield, improving the production efficiency and reducing the production cost.

In addition, according to the control method of the optical fiber coupler in the above technical solution provided by the present invention, the following additional technical features may be further provided:

in above-mentioned technical scheme, further, based on image information, adjust the position that first holder is located through coordinate adjusting part for first optic fibre and second optic fibre butt joint includes: extracting edge features of a first optical fiber and a second optical fiber in the image information; acquiring a deviation parameter based on the edge characteristics; and adjusting the position of the first clamping piece based on the deviation parameter until the edge characteristic of the first optical fiber is parallel to or on the same straight line with the edge characteristic of the second optical fiber.

In the technical scheme, the edge characteristics of the optical fibers are extracted from the image information, the position of the first clamping piece is adjusted through the coordinate adjusting assembly based on the edge characteristics, the first optical fibers and the second optical fibers can be located on the same straight line, the primary adjustment of optical fiber coupling is completed, the coupling efficiency is improved, and the problems of poor product repeatability, poor performance consistency and low yield of manual or semi-automatic production are solved.

In any of the above technical solutions, further, determining the coupling position based on the optical power detection information includes: starting an optical power detection component in real time; determining an adjusting range based on a detection result of the optical power detection assembly when the coordinate adjusting assembly adjusts the position of the first clamping piece so that the first optical fiber is in butt joint with the second optical fiber; adjusting the angle between the positions of the second clamping piece and the first clamping piece through the angle adjusting assembly based on the adjusting range; traversing the optical power detection information acquired by the optical power detector in the adjusting range; and determining the coupling position based on the maximum optical power detection information acquired in the adjustment range.

In the technical scheme, the optical power detection assembly is started in real time, when the position of the first clamping piece is adjusted through the coordinate adjusting assembly to perform initial adjustment, the optical power detection assembly detects the optical power value which is transmitted by the light emitter and penetrates through the optical fiber to be coupled in real time, the adjusting range of the precision adjusting stage is determined according to the optical power value acquired during the initial adjustment, the angle between the second clamping piece and the position of the first clamping piece is adjusted through the angle adjusting assembly in the precision adjusting stage, the optical power detection assembly acquires the optical power detection information which is closest to an initial light source in the adjusting range, and the angle of the angle adjusting assembly is the coupling position at the moment, so that the precision adjustment can be realized, the requirements of high efficiency and shortening of alignment coupling time for large-batch optical fiber butt coupling production can be met, the problem of the optical fiber butt coupling from the traditional manual or semi-automatic packaging production to the full-automatic packaging production can be solved, the product quality and the production efficiency are improved, the low cost and the scale production capacity of optical device production enterprises are improved, and the packaging and manufacturing level and the packaging and manufacturing capacity of the optical devices are improved.

Specifically, the optical power threshold may also be preset; adjusting the angle between the positions of the second clamping piece and the first clamping piece through an angle adjusting assembly, and acquiring optical power detection information through an optical power detector; and when the optical power detection information is greater than or equal to the optical power threshold, stopping adjusting the angle adjusting assembly, and taking the coupling position of the first optical fiber and the second optical fiber as the coupling position. According to the technical scheme, the detected optical power detection information is compared with the optical power threshold value through the preset optical power threshold value, and the angle adjusting assembly can be stopped being adjusted when the optical power threshold value is larger than or equal to the set optical power threshold value, so that the optical fiber coupling adjusting efficiency can be further improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a fiber optic coupler according to an embodiment of the present invention;

FIG. 2 is a block diagram of a fiber optic coupler according to an embodiment of the present invention;

FIG. 3 is a top view of a fiber optic coupler according to one embodiment of the present invention;

FIG. 4 is a side view of a fiber optic coupler according to one embodiment of the present invention;

FIG. 5 is a bottom view of the first translation stage in accordance with one embodiment of the present invention;

FIG. 6 is a front view of a first translation stage according to one embodiment of the invention;

FIG. 7 is a top view of a first translation stage according to one embodiment of the invention;

FIG. 8 is a bottom view of an XY two-dimensional translation stage of one embodiment of the present invention;

FIG. 9 is a front view of an XY two-dimensional translation stage of one embodiment of the present invention;

FIG. 10 is a top view of an XY two-dimensional displacement stage of one embodiment of the invention;

FIG. 11 is a front view of a Z-axis displacement stage of one embodiment of the present invention;

FIG. 12 is a side view of a Z-axis displacement stage of one embodiment of the present invention;

FIG. 13 is a top view of a Z-axis displacement stage of one embodiment of the present invention;

FIG. 14 is a bottom view of a two-dimensional motorized angle displacement table of one embodiment of the present invention;

FIG. 15 is a front view of a two-dimensional motorized angular displacement stage of one embodiment of the present invention;

FIG. 16 is a top view of a two-dimensional motorized angular displacement table of one embodiment of the present invention;

FIG. 17 is a schematic flow chart diagram illustrating a method of controlling a fiber optic coupler according to one embodiment of the present invention;

FIG. 18 is a schematic flow chart diagram illustrating a method of controlling a fiber optic coupler according to yet another embodiment of the present invention;

FIG. 19 is a detailed schematic flow chart diagram of step 604 of the method for controlling the fiber optic coupler of the embodiment shown in FIG. 18;

FIG. 20 is a detailed schematic flow chart diagram of step 608 of the method for controlling the fiber optic coupler of the embodiment shown in FIG. 18;

FIG. 21 is a schematic flow chart diagram illustrating a method for controlling a fiber optic coupler according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 16 is:

2, a coordinate adjusting component, 4 an angle adjusting component, 6 a first clamping piece, 8 a second clamping piece, 10 a shockproof flat plate, 12 a linear guide rail, 14 a first translation platform and 16 a second translation platform;

a 202XY two-dimensional displacement table and a 204Z-axis displacement table;

1602 translation stage base, 1604 translation stage screw, 1606 translation stage table top, 1608 translation stage drive motor;

402 a first table top, 404 a first drive motor, 408 a center of swing, 410 a second drive motor;

2022X axis table top, 2024X axis drive motor, 2028X axis adjustment screw, 2030Y axis table top, 2032Y axis drive motor, 2036Y axis adjustment screw;

2042Z-axis table top, 2044Z-axis driving motor and 2046Z-axis adjusting screw rod.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

An optical fiber coupler and a control method of the optical fiber coupler according to some embodiments of the present invention are described below with reference to fig. 1 to 21.