CN118276256A - Automatic coupling device and method for fast and slow axis focusing lens of optical module - Google Patents

Abstract

The invention relates to the technical field of lasers, in particular to an automatic coupling device and method for a fast and slow axis focusing mirror of an optical module. The invention provides an automatic coupling device for an optical module fast and slow axis focusing lens, which comprises a fast axis lens grabbing and coupling component, a slow axis lens grabbing and coupling component and a power detection component; and (3) starting to find light by small current, wherein in the light finding process, the fast axis focusing lens is not moved, the slow axis lens grabbing coupling component adjusts the position of the slow axis focusing lens until the power detection component detects that the output power of the optical fiber at the output end is at the maximum power and stops, then the slow axis focusing lens is not moved, the fast axis lens grabbing coupling component adjusts the position of the fast axis focusing lens until the power detection component detects that the output power of the optical fiber at the output end is at the maximum power and stops, then the light finding process is repeated, and the fast axis focusing lens and the slow axis focusing lens are mutually matched and coupled, so that the overall power is adjusted to be the maximum, and the coupling precision is higher.

Description

Automatic coupling device and method for fast and slow axis focusing lens of optical module

Technical Field

The invention relates to the technical field of lasers, in particular to an automatic coupling device and method for a fast and slow axis focusing mirror of an optical module.

Background

With the rapid development of the semiconductor laser industry, the research of the laser is quite mature at present, and the laser has the characteristics of high output power, small volume, light weight, long working life, high photoelectric conversion efficiency and the like, and is widely applied to various fields at present.

In order to further improve the output power of the laser, the method is applied to more occasions, a structure that a plurality of light emitting chips are combined and arranged together to form a linear array, an area array or a stacked array is generally selected, and then light output by each light emitting chip is focused and coupled into an optical fiber in a space combination mode, so that high-power output with higher beam quality is realized. Therefore, the coupling accuracy of the fast and slow axis focusing mirrors will affect the output power of the laser.

The prior art generally adopts a manual red light coupling technology and an automatic red light coupling technology, belongs to reverse polishing and light spot positioning, ensures that the positioning of a fast and slow axis focusing lens is not accurate enough, has poor coupling precision, and cannot meet the requirements.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: at present, a laser adopts a manual red light coupling technology and an automatic red light coupling technology, belongs to reverse polishing and light spot positioning, and has the problems that a fast and slow axis focusing mirror is not accurate enough in positioning, the coupling precision is poor, and the requirement cannot be met.

(II) technical scheme

In order to solve the above technical problems, an embodiment of an aspect of the present invention provides an automatic coupling device for a fast and slow axis focusing mirror of an optical module, including: the device comprises a fast axis lens grabbing and coupling assembly, a slow axis lens grabbing and coupling assembly and a power detection assembly;

a coupling station is arranged between the fast axis lens grabbing and coupling assembly and the slow axis lens grabbing and coupling assembly, and the coupling station is used for positioning an optical module to be coupled;

The optical module to be coupled is provided with a light emitting chip, an output end optical fiber and positive and negative pins used for being connected with a power supply;

The fast axis lens grabbing and coupling assembly is used for grabbing a fast axis focusing lens and adjusting the position of the fast axis focusing lens on the optical module to be coupled so as to couple the light beam emitted by the light emitting chip to the output end optical fiber in cooperation with the slow axis focusing lens;

The slow-axis lens grabbing and coupling assembly is used for grabbing a slow-axis focusing lens and adjusting the position of the slow-axis focusing lens on the optical module to be coupled so as to be matched with the fast-axis focusing lens to couple the light beam emitted by the light emitting chip to the output end optical fiber;

the power detection component is used for detecting the optical power of the output end optical fiber.

According to one embodiment of the invention, the fast axis lens grabbing coupling assembly and the slow axis lens grabbing coupling assembly both comprise a focusing lens suction nozzle and a multi-degree-of-freedom motion platform, wherein the focusing lens suction nozzle is connected to the multi-degree-of-freedom motion platform, and the multi-degree-of-freedom motion platform is used for driving the focusing lens suction nozzle to move in multiple degrees of freedom.

According to one embodiment of the invention, at least the adsorption end of the focusing lens suction nozzle for adsorbing the fast axis focusing lens is provided with a first adsorption surface and a second adsorption surface, and the first adsorption surface and the second adsorption surface are mutually perpendicular and form an L shape;

the first suction port is arranged on the first suction surface, and the second suction port is arranged on the second suction surface.

According to an embodiment of the invention, the first suction opening is a long opening and/or the second suction opening is a long opening.

According to one embodiment of the invention, the slow axis lens grabbing and coupling assembly further comprises a PBS lens suction nozzle, wherein the PBS lens suction nozzle is arranged on the focusing lens suction nozzle and is positioned at one end of the focusing lens suction nozzle, which is away from the suction end, and the multi-degree-of-freedom motion platform can drive the focusing lens suction nozzle to rotate.

According to one embodiment of the invention, the optical module to be coupled further comprises a water cooling plate, wherein the water cooling plate is arranged at the coupling station and is fixed at the bottom of the optical module to be coupled.

According to one embodiment of the present invention, the system further comprises a fast and slow axis focusing lens feeding assembly for carrying the fast axis focusing lens and the slow axis focusing lens;

The fast axis lens grabbing and coupling assembly is used for grabbing the fast axis focusing lens on the fast and slow axis focusing lens feeding assembly, and the slow axis lens grabbing and coupling assembly is used for grabbing the slow axis focusing lens on the fast and slow axis focusing lens feeding assembly.

According to one embodiment of the present invention, the camera module further comprises an up-view camera module and a down-view camera module;

The upward-looking camera module is arranged between the fast-axis and slow-axis focusing lens feeding component and the coupling station and is used for identifying whether the fast-axis focusing lens grabbed by the fast-axis lens grabbing coupling component is askew or not and identifying whether the slow-axis focusing lens grabbed by the slow-axis lens grabbing coupling component is askew or not;

The lower view camera module is arranged on the fast axis lens grabbing coupling assembly and/or arranged on the slow axis lens grabbing coupling assembly, and the lower view camera module is used for identifying the position of the fast axis focusing lens and the position of the slow axis focusing lens on the fast and slow axis focusing lens feeding assembly.

According to one embodiment of the invention, the device further comprises a dispensing assembly and a curing assembly;

The dispensing assembly is arranged on the fast axis lens grabbing coupling assembly and/or the dispensing assembly is arranged on the slow axis lens grabbing coupling assembly;

The curing component is arranged on the fast axis lens grabbing coupling component and/or the slow axis lens grabbing coupling component.

Another embodiment of the present invention provides an automatic coupling method for an optical module fast and slow axis focusing lens, which is applied to the above automatic coupling device for an optical module fast and slow axis focusing lens, and includes the steps of:

S1, positioning an optical module to be coupled at a coupling station;

s2, corresponding the output end optical fiber to the power detection assembly, and connecting the anode pin and the cathode pin with a power supply;

S3, the fast axis lens grabbing and coupling assembly grabs the fast axis focusing lens to the pre-placement position in the optical module to be coupled, and the slow axis lens grabbing and coupling assembly grabs the slow axis focusing lens to the pre-placement position in the optical module to be coupled;

S4, powering up the optical module to be coupled;

S5, starting to find light by small current, wherein in the light finding process, the fast axis focusing lens is not moved, and the slow axis lens grabbing and coupling assembly adjusts the position of the slow axis focusing lens until the power detection assembly detects that the output power of the output end optical fiber is the maximum power and stops;

And starting to find light by small current, wherein in the light finding process, the slow-axis focusing lens is not moved, and the fast-axis lens grabbing and coupling assembly adjusts the position of the fast-axis focusing lens until the power detection assembly detects that the output power of the output-end optical fiber is the maximum power and stops.

The invention has the beneficial effects that: the invention provides an automatic coupling device for an optical module fast and slow axis focusing lens, which comprises a fast axis lens grabbing and coupling component, a slow axis lens grabbing and coupling component and a power detection component; the optical module to be coupled is positioned at the coupling station, the output end optical fiber corresponds to the power detection component, the anode pin and the cathode pin are connected with a power supply, the fast axis lens grabs the coupling component to grab the fast axis focusing lens to the internal pre-placement position of the optical module to be coupled, the slow axis lens grabs the coupling component to grab the slow axis focusing lens to the internal pre-placement position of the optical module to be coupled, then the optical module to be coupled is powered on, light begins to be found by small current, the fast axis focusing lens is not moved in the light finding process, the slow axis lens grabs the coupling component to adjust the position of the slow axis focusing lens until the power detection component detects that the output power of the output end optical fiber is stopped at maximum power, then the slow axis lens grabs the coupling component to adjust the position of the fast axis focusing lens until the power detection component detects that the output power of the output end optical fiber is stopped at maximum power, and then the light finding process is repeated, wherein the fast axis focusing lens and the slow axis lens can be positioned more accurately by the power identification and the coupling sequence is interchanged, and the coupling precision and the slow axis focusing lens are matched with each other to be coupled with each other with high precision.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a top view of an automatic coupling device for a fast and slow axis focusing mirror of an optical module according to an embodiment of the present invention;

fig. 2 is a top side view of one side of an automatic coupling device for a fast and slow axis focusing lens of an optical module according to an embodiment of the present invention;

fig. 3 is a side view of an automatic coupling device for a fast and slow axis focusing mirror of an optical module according to an embodiment of the present invention;

Fig. 4 is a top side view of the other side of the optical module fast and slow axis focusing lens automatic coupling device according to the embodiment of the present invention;

Fig. 5 is a schematic diagram of a focusing lens suction nozzle for sucking a fast axis focusing lens according to an embodiment of the present invention.

Icon: 1-a fast axis lens grabbing coupling assembly; 2-a slow axis lens grasping and coupling assembly; 21-a focusing lens nozzle; 211-a first adsorption surface; 212-a second adsorption surface; 213-a first suction opening; 214-a second suction opening; 22-a multi-degree-of-freedom motion platform; 221-X direction movement module; 222-Y direction movement module; 223-a first Z-motion module; 224-yaw movement module; 225-a pitching motion module; 23-looking down the camera module; 24-connecting frames; 25-glue needle; 26-a second Z-direction movement module; a 27-UV lamp; 28-lamp bracket; 3-an optical module to be coupled; 31-an output end optical fiber; 32-positive and negative pins; 4-a bottom plate; 5-objective table; 6-water cooling plates; 7-integrating sphere power meter; 8-an upward-looking camera module; 9, a material table; 91-fast axis focusing lens; 92-slow axis focusing lens.

Detailed Description

In order that the above-recited objects, features and advantages of the present application can be more clearly understood, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, and in which the features of the embodiments of the application are illustrated in the appended drawings without departing from the scope of the appended claims. It will be apparent that the described embodiments are some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

As shown in fig. 1,2 and 4, the present embodiment provides an automatic coupling device for a fast and slow axis focusing mirror of an optical module, including: the device comprises a fast axis lens grabbing coupling component 1, a slow axis lens grabbing coupling component 2 and a power detection component; a coupling station is arranged between the fast axis lens grabbing and coupling assembly 1 and the slow axis lens grabbing and coupling assembly 2, and the coupling station is used for positioning the optical module 3 to be coupled; the optical module (3) to be coupled is provided with a light emitting chip, an output end optical fiber (31) and a positive electrode pin (32) used for being connected with a power supply; the fast axis lens grabbing and coupling assembly 1 is used for grabbing the fast axis focusing lens 91 and adjusting the position of the fast axis focusing lens 91 on the optical module 3 to be coupled so as to couple the light beam emitted by the light emitting chip to the output end optical fiber 31 in cooperation with the slow axis focusing lens 92, and the slow axis lens grabbing and coupling assembly 2 is used for grabbing the slow axis focusing lens 92 and adjusting the position of the slow axis focusing lens 92 on the optical module 3 to be coupled so as to couple the light beam emitted by the light emitting chip to the output end optical fiber 31 in cooperation with the fast axis focusing lens 91; the power detection component is used for detecting the optical power of the output end optical fiber 31.

According to the automatic coupling device for the optical module fast and slow axis focusing mirror, which is provided by the invention, after the optical module 3 to be coupled is positioned at a coupling station, an output end optical fiber 31 corresponds to a power detection component, a positive pin 32 and a negative pin 32 are connected with a power supply, a fast axis lens grabbing coupling component 1 grabs a fast axis focusing lens 91 to a pre-placement position inside the optical module 3 to be coupled, a slow axis lens grabbing coupling component 2 grabs a slow axis focusing lens 92 to a pre-placement position inside the optical module 3 to be coupled, then the optical module 3 to be coupled is powered on, light finding is started by small current, in the light finding process, the fast axis focusing lens 91 is not moved, the slow axis lens grabbing coupling component 2 adjusts the position of the slow axis focusing lens 92 until the power detection component detects that the output power of the output end optical fiber 31 is stopped at maximum power, then the fast axis lens grabbing coupling component 1 adjusts the position of the fast axis focusing lens 91 until the power detection component detects that the output power of the output end optical fiber 31 is stopped at maximum power, and the light finding process is repeated, the fast axis focusing lens 91 is coupled by identifying power, the fast axis focusing lens 91 can be more accurately positioned, the whole coupling precision is improved, and the fast axis focusing lens 92 and the coupling is more accurately adjusted in the coupling process. In the light finding process, the slow axis focusing lens 92 may be fixed first, the fast axis lens grabbing coupling assembly 1 adjusts the position of the fast axis focusing lens 91 until the power detecting assembly detects that the output power of the output end optical fiber 31 is the maximum power, then the fast axis focusing lens 91 is fixed, and the slow axis lens grabbing coupling assembly 2 adjusts the position of the slow axis focusing lens 92 until the power detecting assembly detects that the output power of the output end optical fiber 31 is the maximum power.

The automatic coupling device for the optical module fast and slow axis focusing mirror can also comprise a power supply connecting device, and the positive and negative pins 32 are automatically connected through the power supply connecting device.

According to an embodiment of the present invention, as shown in fig. 3, the fast axis lens capturing and coupling assembly 1 and the slow axis lens capturing and coupling assembly 2 each include a focusing lens suction nozzle 21 and a multiple degree of freedom moving platform 22, wherein the focusing lens suction nozzle 21 is connected to the multiple degree of freedom moving platform 22, and the multiple degree of freedom moving platform 22 is used for driving the focusing lens suction nozzle 21 to move in multiple degrees of freedom. The fast axis focusing lens 91 or the slow axis focusing lens 92 is adsorbed by the focusing lens suction nozzle 21 to avoid damaging the focusing lens, but the method is not limited to the method, the focusing lens can be grasped by a mechanical gripper, so long as the requirement is met, and meanwhile, the position of the focusing lens suction nozzle 21 is adjusted by the multi-degree-of-freedom motion platform 22, so that the movement is flexible.

According to an embodiment of the present invention, as shown in fig. 5, at least an adsorption end of a focusing lens nozzle 21 for adsorbing a fast axis focusing lens 91 is provided with a first adsorption surface 211 and a second adsorption surface 212, and the first adsorption surface 211 and the second adsorption surface 212 are perpendicular to each other and have an L shape; the first suction surface 211 is provided with a first suction port 213, and the second suction surface 212 is provided with a second suction port 214.

In the present embodiment, the focusing lens suction nozzle 21 in the fast axis lens grabbing coupling assembly 1 is used for sucking the fast axis focusing lens 91, and the focusing lens suction nozzle 21 in the slow axis lens grabbing coupling assembly 2 is used for sucking the slow axis focusing lens 92. Since the fast-axis focusing lens 91 and the slow-axis focusing lens 92 are different in size and shape, the requirements for the quality of the light beams in the fast-axis and slow-axis directions are different, and the requirements for the focusing performance of the light beams in the fast-axis direction are higher, the fast-axis focusing lens 91 is more finely adjusted. Therefore, the suction end, i.e., the lower end, of the focusing lens suction nozzle 21 for sucking the fast-axis focusing lens 91 is L-shaped and has a first suction surface 211 and a second suction surface 212 perpendicular to each other, the first suction surface 211 is provided with a first suction port 213 for sucking the top of the fast-axis focusing lens 91, and the second suction surface 212 is provided with a second suction port 214 for sucking the side of the fast-axis focusing lens 91, when sucking the fast-axis focusing lens 91, the second suction port 214 sucks the side of the fast-axis focusing lens 91, and then the first suction port 213 sucks the top of the fast-axis focusing lens 91, so that the first suction port 213 and the second suction port 214 are precisely fixed in position, the positioning is more accurate, each time the sucking lens is fixed in the position of the second suction surface 212, the positioning consistency and the accuracy of each fast-axis focusing lens 91 are improved as a whole, and the coupling efficiency is also improved. The focusing lens suction nozzle 21 for sucking the slow axis focusing lens 92 may be the same as or different from the focusing lens suction nozzle 21 for sucking the fast axis focusing lens 91.

According to one embodiment of the invention, first suction opening 213 is a long opening, and/or second suction opening 214 is a long opening. The long mouth can increase the adsorption area, and the positioning consistency and accuracy are improved.

According to an embodiment of the present invention, the slow axis lens capturing and coupling assembly 2 further includes a PBS lens suction nozzle, which is disposed on the focusing lens suction nozzle 21 and is located at an end of the focusing lens suction nozzle 21 away from the suction end, and the multiple degree of freedom motion platform 22 can drive the focusing lens suction nozzle 21 to rotate.

In this embodiment, a PBS lens suction nozzle is disposed above the focusing lens suction nozzle 21 for sucking the slow-axis focusing lens 92, which is vertically symmetrical, and can rotate, and different suction nozzles are used for installing different lenses, so that the device can simultaneously have the function of sucking and installing the PBS beam combiner prism, thereby improving the applicability, and the device is manually installed, and the PBS beam combiner prism is automatically installed, thereby improving the efficiency and saving the manpower.

According to one embodiment of the present invention, as shown in fig. 1 and 2, the optical module 3 further comprises a water cooling plate 6, wherein the water cooling plate 6 is disposed at the coupling station and is fixed at the bottom of the optical module 3 to be coupled. Because the temperature of the optical module 3 to be coupled is higher when the optical module 3 to be coupled is electrically coupled, the optical module 3 to be coupled is fixed on the water cooling plate 6, so that heat dissipation is facilitated. Wherein the water cooling plate 6 is connected with a water cooling machine to realize circulating water cooling.

The automatic coupling device of the optical module fast and slow axis focusing lens provided by the embodiment further comprises a bottom plate 4 and an objective table 5, wherein the objective table 5, the fast axis lens grabbing and coupling assembly 1, the slow axis lens grabbing and coupling assembly 2 and the power detection assembly are all arranged on the bottom plate 4, and the water cooling plate 6 is fixed on the objective table 5.

In this embodiment, the power detection assembly includes an integrating sphere power meter 7, the output end optical fiber 31 corresponds to the integrating sphere power meter 7, and the integrating sphere power meter 7 is configured to receive the light beam emitted by the output end optical fiber 31. The power detection unit may be another conventional optical power detector capable of detecting the power of the output optical fiber 31.

According to one embodiment of the present invention, the present invention further comprises a fast and slow axis focusing lens feeding assembly for carrying the fast axis focusing lens 91 and the slow axis focusing lens 92; the fast axis lens grabbing coupling component 1 is used for grabbing fast axis focusing lenses 91 on the fast and slow axis focusing lens feeding component, and the slow axis lens grabbing coupling component 2 is used for grabbing slow axis focusing lenses 92 on the fast and slow axis focusing lens feeding component.

In this embodiment, the fast and slow axis focusing lens feeding component is disposed on the bottom plate 4, and the fast and slow axis focusing lens feeding component includes a material table 9, and a material groove for correspondingly placing the fast axis focusing lens 91 and the slow axis focusing lens 92 is disposed on the material table 9, so as to ensure the stability of the focusing lens during feeding.

In this embodiment, the multi-degree-of-freedom motion platform 22 may be a three-degree-of-freedom motion platform, a four-degree-of-freedom motion platform, a five-degree-of-freedom motion platform, or a six-degree-of-freedom motion platform. Preferably, the multi-degree-of-freedom motion platform 22 is a five-degree-of-freedom motion platform, specifically, as shown in fig. 3, the multi-degree-of-freedom motion platform 22 includes an X-direction motion module 221, a Y-direction motion module 222, a first Z-direction motion module 223, a yaw motion module 224, and a pitch motion module 225, which are sequentially connected, and the focusing lens suction nozzle 21 is connected to the pitch motion module 225; the X-direction movement module 221 is configured to drive the Y-direction movement module 222 to move along the X-direction, the Y-direction movement module 222 is configured to drive the first Z-direction movement module 223 to move along the Y-direction, the first Z-direction movement module 223 is configured to drive the yaw movement module 224 to move along the Z-direction, the yaw movement module 224 is configured to drive the pitch movement module 225 to yaw movement, and the pitch movement module 225 is configured to drive the focus lens suction nozzle 21 to pitch movement. The whole structure is simple, and the movement is convenient and stable.

According to one embodiment of the present invention, as shown in fig. 2, further includes an upper view camera module 8 and a lower view camera module 23; the upward-looking camera module 8 is arranged between the fast-slow axis focusing lens feeding component and the coupling station, and is used for identifying whether the fast-axis focusing lens 91 grabbed by the fast-axis lens grabbing coupling component 1 is askew or not and identifying whether the slow-axis focusing lens 92 grabbed by the slow-axis lens grabbing coupling component 2 is askew or not; the lower view camera module 23 is disposed on the fast axis lens grabbing coupling assembly 1 and/or the lower view camera module 23 is disposed on the slow axis lens grabbing coupling assembly 2, and the lower view camera module 23 is used for identifying the position of the fast axis focusing lens 91 and the position of the slow axis focusing lens 92 on the fast axis and slow axis focusing lens feeding assembly.

In this embodiment, the upward-looking camera module 8 is disposed on the bottom plate 4 and between the material stage 9 and the object stage 5, the downward-looking camera module 23 is connected to the Y-direction movement module 222 through the connecting frame 24, and the downward-looking camera module 23 is driven to move along the X-direction and the Y-direction respectively through the X-direction movement module 221 and the Y-direction movement module 222. Whether the taken focusing lens is askew or not is detected by the upward-looking camera module 8, and if the focusing lens is abnormal, the angle can be automatically adjusted, so that the coupling accuracy is improved. The position of the focusing lens to be taken on the material table 9 is detected by the downward-looking camera module 23, so that the focusing lens is conveniently sucked at the center of the focusing lens every time, and the coupling accuracy is improved.

According to one embodiment of the present invention, as shown in fig. 4, the adhesive dispensing assembly and the curing assembly are further included; the dispensing component is arranged on the fast axis lens grabbing coupling component 1 and/or the slow axis lens grabbing coupling component 2; the curing assembly is disposed on the fast axis lens grabbing coupling assembly 1 and/or the curing assembly is disposed on the slow axis lens grabbing coupling assembly 2. And the focusing lens is subjected to dispensing and curing through the dispensing assembly and the curing assembly, so that the degree of automation is high.

In this embodiment, the dispensing assembly is provided with one, and the dispensing assembly includes plastic pin 25 and second Z to motion module 26, and plastic pin 25 connects in second Z to motion module 26, and second Z is to motion module 26 passes through link 24 and connects on Y to motion module 222, drives second Z respectively to motion module 26 along X to and Y to motion through X to motion module 221 and Y to motion module 222, and second Z is to motion module 26 to drive plastic pin 25 along Z to motion, simple structure conveniently adjusts the position of plastic pin 25.

In this embodiment, all set up the curing component on the coupling component 1 is snatched to fast axis lens and the coupling component 2 is snatched to slow axis lens, and the curing component includes UV lamp 27 and lighting fixture 28, and UV lamp 27 passes through lighting fixture 28 to be installed on every single move motion module 225, conveniently adjusts the position of UV lamp 27. And simultaneously, the curing effect and efficiency are improved through the double UV lamps 27.

The invention provides an automatic coupling method of an optical module fast and slow axis focusing lens, which is applied to the automatic coupling device of the optical module fast and slow axis focusing lens, and comprises the following steps:

S1, positioning an optical module 3 to be coupled at a coupling station;

S2, corresponding the output end optical fiber 31 to the power detection assembly, and connecting the anode pin 32 and the cathode pin 32 to a power supply;

S3, the fast axis lens grabbing and coupling assembly 1 grabs the fast axis focusing lens 91 to a pre-placement position inside the optical module 3 to be coupled, and the slow axis lens grabbing and coupling assembly 2 grabs the slow axis focusing lens 92 to a pre-placement position inside the optical module 3 to be coupled;

s4, powering up the optical module 3 to be coupled;

S5, light finding is started by small current, in the light finding process, the fast axis focusing lens 91 is not moved, the slow axis lens grabbing and coupling assembly 2 adjusts the position of the slow axis focusing lens 92 until the power detection assembly detects that the output power of the output end optical fiber 31 is the maximum power, and the light finding process is stopped;

And, the light finding is started by the small current, in the light finding process, the slow-axis focusing lens 92 is not moved, and the fast-axis lens grabbing and coupling assembly 1 adjusts the position of the fast-axis focusing lens 91 until the power detection assembly detects that the output power of the output end optical fiber 31 is the maximum power and stops.

According to the automatic coupling method for the optical module fast and slow axis focusing lens, in the light finding process, the fast axis focusing lens 91 is not moved, the slow axis lens grabbing coupling component 2 adjusts the position of the slow axis focusing lens 92 until the power detection component detects that the output power of the output end optical fiber 31 is the maximum power and stops, then the slow axis focusing lens 92 is not moved, the fast axis lens grabbing coupling component 1 adjusts the position of the fast axis focusing lens 91 until the power detection component detects that the output power of the output end optical fiber 31 is the maximum power and stops, and then the light finding process is repeated, so that the overall power is adjusted to be the maximum, and the coupling precision is higher. In the light finding process, the slow axis focusing lens 92 may be fixed first, the fast axis lens grabbing coupling assembly 1 adjusts the position of the fast axis focusing lens 91 until the power detecting assembly detects that the output power of the output end optical fiber 31 is the maximum power, then the fast axis focusing lens 91 is fixed, and the slow axis lens grabbing coupling assembly 2 adjusts the position of the slow axis focusing lens 92 until the power detecting assembly detects that the output power of the output end optical fiber 31 is the maximum power.

Wherein, step S1 includes the steps of: s11, preparing an optical module 3 to be coupled, which is already coupled with 3 paths of Mirrors of high, medium and low or 6 paths of Mirrors; s12, placing the optical module 3 to be coupled on the water cooling plate 6 through which water flows, and fixing the optical module 3 to be coupled by using screws.

The step S3 comprises the steps of: s31, the downward-looking camera module 23 moves to the position above the fast-slow axis focusing lens feeding component, the position of the fast-axis focusing lens 91 is identified, and the fast-axis focusing lens 91 is sucked by the focusing lens suction nozzle 21 after completion; s32, moving the sucked fast axis focusing lens 91 to the upper side of the upper vision camera module 8 to identify whether the lens is askew, if the lens is abnormal, adjusting the angle to be normal, and waiting to be placed in the optical module 3 to be coupled after the lens is finished; s33, moving the downward-looking camera module 23 to the position above the fast-slow axis focusing lens feeding component, identifying the position of the slow axis focusing lens 92, and sucking the slow axis focusing lens 92 by the focusing lens suction nozzle 21 after completion; s34, moving the sucked slow-axis focusing lens 92 to the upper side of the upper vision camera module 8 to identify whether the lens is askew, if the lens is abnormal, adjusting the angle to be normal, and waiting to be placed in the optical module 3 to be coupled after the lens is finished; s35, the fast axis focusing lens 91 and the slow axis focusing lens 92 are respectively moved to the pre-release positions inside the optical module 3 to be coupled, which are set in advance.

The invention provides an automatic coupling method of an optical module fast and slow axis focusing lens, which further comprises the following steps: s6, repeating the step S5.

The invention provides an automatic coupling method of an optical module fast and slow axis focusing lens, which further comprises the following steps: and S7, after the fast axis focusing lens 91 and the slow axis focusing lens 92 are coupled to the maximum power according to the current, the fast axis focusing lens 91 and the slow axis focusing lens 92 are lifted up, the glue needle 25 of the glue dispensing assembly is moved to the position where the fast axis focusing lens 91 and the slow axis focusing lens 92 are just coupled to perform glue dispensing (ultraviolet glue), and the glue is retracted after the glue dispensing is completed.

The invention provides an automatic coupling method of an optical module fast and slow axis focusing lens, which further comprises the following steps: s8, the fast axis focusing lens 91 and the slow axis focusing lens 92 return to the original maximum coupling power positions, and the coupling power is reconfirmed, and under the condition of no abnormality, the UV lamp 27 of the curing assembly moves to a position 1.5-2cm away from the bottoms of the fast axis focusing lens 91 and the slow axis focusing lens 92, and the angle is about 45 degrees, so that UV ultraviolet glue curing is performed.

The invention provides an automatic coupling method of an optical module fast and slow axis focusing lens, which further comprises the following steps: and S9, after the solidification is completed, the focusing lens suction nozzle 21 automatically closes the suction vacuum, returns to the zero position and waits for the next light module 3 to be coupled.

According to the automatic coupling method for the optical module fast and slow axis focusing lens, the automatic coupling of the optical module fast and slow axis focusing lens is automatically completed through the steps S1-S9, and the position positioning of the fast axis focusing lens 91 and the slow axis focusing lens 92 is completed through matching, so that the overall power is adjusted to be maximum, and the coupling precision is higher.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (10)

1. An automatic coupling device for a fast and slow axis focusing lens of an optical module is characterized by comprising: the device comprises a fast axis lens grabbing coupling component (1), a slow axis lens grabbing coupling component (2) and a power detection component;

a coupling station is arranged between the fast axis lens grabbing and coupling assembly (1) and the slow axis lens grabbing and coupling assembly (2), and the coupling station is used for positioning an optical module (3) to be coupled;

The light module (3) to be coupled is provided with a light emitting chip, an output end optical fiber (31) and a positive electrode pin (32) used for being connected with a power supply;

The fast axis lens grabbing and coupling assembly (1) is used for grabbing a fast axis focusing lens (91) and adjusting the position of the fast axis focusing lens on the optical module (3) to be coupled so as to couple the light beam emitted by the light emitting chip to the output end optical fiber (31) in cooperation with a slow axis focusing lens (92);

the slow-axis lens grabbing and coupling assembly (2) is used for grabbing a slow-axis focusing lens (92) and adjusting the position of the slow-axis focusing lens on the optical module (3) to be coupled so as to couple the light beam emitted by the light emitting chip to the output end optical fiber (31) in cooperation with the fast-axis focusing lens (91);

the power detection assembly is used for detecting the optical power of the output end optical fiber (31).

2. The automatic coupling device for the optical module fast and slow axis focusing lens according to claim 1, wherein the fast axis lens grabbing coupling assembly (1) and the slow axis lens grabbing coupling assembly (2) comprise a focusing lens suction nozzle (21) and a multi-freedom-degree moving platform (22), the focusing lens suction nozzle (21) is connected to the multi-freedom-degree moving platform (22), and the multi-freedom-degree moving platform (22) is used for driving the focusing lens suction nozzle (21) to move in multiple degrees.

3. The automatic coupling device of the optical module fast and slow axis focusing lens according to claim 2, wherein at least an adsorption end of the focusing lens suction nozzle (21) for adsorbing the fast axis focusing lens (91) is provided with a first adsorption surface (211) and a second adsorption surface (212), and the first adsorption surface (211) and the second adsorption surface (212) are perpendicular to each other and form an L shape;

the first suction surface (211) is provided with a first suction port (213), and the second suction surface (212) is provided with a second suction port (214).

4. An optical module fast and slow axis focusing lens automatic coupling device according to claim 3, characterized in that the first suction port (213) is a long port and/or the second suction port (214) is a long port.

5. The automatic coupling device for the optical module fast and slow axis focusing lens according to claim 2, wherein the slow axis lens grabbing and coupling assembly (2) further comprises a PBS lens suction nozzle, the PBS lens suction nozzle is arranged on the focusing lens suction nozzle (21) and is positioned at one end of the focusing lens suction nozzle (21) deviating from the adsorption end, and the multi-degree-of-freedom moving platform (22) can drive the focusing lens suction nozzle (21) to rotate.

6. The automatic coupling device for the optical module fast and slow axis focusing mirror according to any one of claims 1-5, further comprising a water cooling plate (6), wherein the water cooling plate (6) is arranged at the coupling station and is fixed at the bottom of the optical module (3) to be coupled.

7. The automatic coupling device for optical module fast and slow axis focusing lens according to any one of claims 1 to 5, further comprising a fast and slow axis focusing lens feeding assembly for carrying the fast axis focusing lens (91) and the slow axis focusing lens (92);

The fast axis lens grabbing coupling component (1) is used for grabbing fast axis focusing lenses (91) on the fast and slow axis focusing lens feeding component, and the slow axis lens grabbing coupling component (2) is used for grabbing slow axis focusing lenses (92) on the fast and slow axis focusing lens feeding component.

8. The automatic coupling device of optical module fast and slow axis focusing lens according to claim 7, further comprising an upward-looking camera module (8) and a downward-looking camera module (23);

The upward-looking camera module (8) is arranged between the fast-axis and slow-axis focusing lens feeding component and the coupling station, and is used for identifying whether the fast-axis focusing lens (91) grabbed by the fast-axis lens grabbing coupling component (1) is askew or not and identifying whether the slow-axis focusing lens (92) grabbed by the slow-axis lens grabbing coupling component (2) is askew or not;

the lower view camera module (23) is arranged on the fast axis lens grabbing coupling component (1) and/or the lower view camera module (23) is arranged on the slow axis lens grabbing coupling component (2), and the lower view camera module (23) is used for identifying the position of the fast axis focusing lens (91) and the position of the slow axis focusing lens (92) on the fast axis focusing lens feeding component.

9. The optical module fast and slow axis focusing lens automatic coupling device according to any one of claims 1-5, further comprising a dispensing assembly and a curing assembly;

The dispensing component is arranged on the fast axis lens grabbing coupling component (1) and/or the slow axis lens grabbing coupling component (2);

The curing component is arranged on the fast axis lens grabbing coupling component (1) and/or the slow axis lens grabbing coupling component (2).

10. An automatic coupling method for an optical module fast and slow axis focusing lens, which is applied to the automatic coupling device for the optical module fast and slow axis focusing lens according to any one of claims 1 to 9, is characterized by comprising the following steps:

s1, positioning an optical module (3) to be coupled at a coupling station;

S2, corresponding an output end optical fiber (31) to the power detection assembly, and connecting a positive electrode pin (32) with a power supply;

S3, the fast axis lens grabbing and coupling assembly (1) grabs the fast axis focusing lens (91) to the pre-placement position inside the optical module (3) to be coupled, and the slow axis lens grabbing and coupling assembly (2) grabs the slow axis focusing lens (92) to the pre-placement position inside the optical module (3) to be coupled;

S4, powering up the optical module (3) to be coupled;

S5, light finding is started by small current, in the light finding process, a fast axis focusing lens (91) is motionless, a slow axis lens grabbing coupling component (2) adjusts the position of a slow axis focusing lens (92) until a power detection component detects that the output power of an output end optical fiber (31) is the maximum power and stops;

and light finding is started by small current, in the light finding process, the slow-axis focusing lens (92) is not moved, and the fast-axis lens grabbing coupling assembly (1) adjusts the position of the fast-axis focusing lens (91) until the power detection assembly detects that the output power of the output-end optical fiber (31) is the maximum power and stops.