CN116560019B - Dual-lens coupling method for optical module transmitting assembly and related equipment - Google Patents
Dual-lens coupling method for optical module transmitting assembly and related equipment Download PDFInfo
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- CN116560019B CN116560019B CN202310846090.5A CN202310846090A CN116560019B CN 116560019 B CN116560019 B CN 116560019B CN 202310846090 A CN202310846090 A CN 202310846090A CN 116560019 B CN116560019 B CN 116560019B
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- 238000005859 coupling reaction Methods 0.000 claims abstract description 38
- 238000004590 computer program Methods 0.000 claims description 14
- 230000009977 dual effect Effects 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 8
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- 238000004519 manufacturing process Methods 0.000 abstract description 10
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
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- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The application provides a double-lens coupling method of an optical module transmitting assembly and related equipment, wherein the method comprises the following steps: based on the emergent light of the collimating lens between the laser and the waveguide converging on the waveguide, the collimating lens performs first adjustment to determine a first position of the collimating lens; moving the collimating lens to the direction of the laser by a first preset distance based on the first position, wherein the first preset distance is determined by adjusting the collimating lens and the converging lens; performing second adjustment on the collimating lens to determine a second position of the collimating lens; the first position and the second position are positions corresponding to the maximum optical power of the waveguide; a converging lens is arranged between the collimating lens and the waveguide, the converging lens is adjusted, and the position of the converging lens is determined; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide. The application aims at maximizing the optical power of the waveguide, and adjusts the alignment lens and the convergence lens in sequence, thereby realizing the compromise of coupling efficiency and production efficiency.
Description
Technical Field
The application relates to the technical field of optical communication, in particular to a double-lens coupling method of an optical module transmitting assembly and related equipment.
Background
With the continuous emergence of new services such as cloud computing, big data, ultra-clear video, 5G and the like, the global data traffic is continuously increased, and the requirements of data centers on the optical modules with the rates of 100G, 200G, 400G, 800G and above are promoted to be larger and larger. While the demand is great, the cost of the data center optical module is more demanding. In order to reduce the cost, in actual mass production, the higher the production efficiency, the better the emission end is under the condition of meeting the requirement of light-emitting power. This is equivalent to putting forward the dual requirement to the coupling efficiency and the production efficiency of laser coupling, and both coupling efficiency is high, and production efficiency is high.
In order to obtain high coupling efficiency, a more economical way is to use a two-lens coupling scheme. The conventional dual-lens coupling method has the following steps:
first kind: the method of firstly fixing one lens (generally fixing a converging lens) in a high-precision passive way and then precisely coupling the other lens (generally collimating lens) is high in production efficiency, but because one lens is fixed in a passive way, the position of the lens is not the optimal position of the maximum coupling efficiency due to the problem of passive mounting precision, and therefore the overall coupling efficiency has a certain loss;
second kind: the active coupling collimating lens is fixed by monitoring the collimating light spot, and the light emitted by the laser is collimated and reaches the preset position of the light spot scanning device by adjusting the position of the collimating lens. However, there is a tolerance on the mounting position of the laser, whether the light spot is collimated or not needs a light spot scanning device to judge whether the preset position to which the light spot is coupled is determined by a standard component, and the light spot position is very dependent on the accuracy of the standard component. All these factors result in a deviation of the actually coupled out collimated light from the designed collimated light, resulting in a loss of coupling efficiency.
Third kind: the double six-axis coupling table double lenses are simultaneously coupled, and in theory, the coupling method can be coupled to the position with the maximum coupling efficiency, but has low production efficiency and large equipment investment, and is not suitable for large-scale batch production.
As can be seen from the above, the dual-lens coupling method in the prior art has a problem that the coupling efficiency and the production efficiency cannot be both achieved.
Disclosure of Invention
Aiming at the technical problems in the prior art, the application provides a double-lens coupling method of an optical module transmitting assembly and related equipment.
The application provides a double-lens coupling method of an optical module transmitting assembly, which comprises the following steps:
based on the fact that emergent light of a collimating lens between a laser and a waveguide is converged on the waveguide, the collimating lens is adjusted for the first time, and the first position of the collimating lens is determined; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process;
moving the collimating lens to a first preset distance in the direction of the laser based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process;
curing the collimating lens based on the second position;
a converging lens is arranged between the collimating lens and the waveguide, the converging lens is adjusted, and the position of the converging lens is determined; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the converging lens;
solidifying the converging lens based on the position of the converging lens;
wherein the first preset distance is determined by:
moving the collimating lens to the direction of the laser by a second preset distance each time by taking the first position as a starting point;
after each movement is finished, the collimating lens and the converging lens are adjusted, and the maximum optical power of the waveguide corresponding to each movement is obtained;
and comparing the maximum optical power of the waveguide corresponding to each movement to determine a first preset distance of the collimating lens.
In some embodiments, the adjusting the collimating lens and the converging lens to obtain the maximum optical power of the waveguide corresponding to each movement includes:
adjusting a collimating lens from two dimensions of X and Y to maximize the optical power output by the waveguide, and then fixing the collimating lens;
from X, Y, Z, θx, θ Y And theta Z Adjusting the converging lens in six dimensions, and maximizing the optical power output by the waveguide again, wherein the optical power is taken as the maximum optical power of the waveguide corresponding to the movement;
wherein, X is the horizontal axis direction vertical to the optical axis; the Y is a longitudinal axis direction perpendicular to the optical axis, and the Z is an optical axis direction; the theta x is an included angle between the collimating lens and a transverse axis; the theta is as follows Y An included angle between the collimating lens and the longitudinal axis; the theta is as follows Z Is the included angle between the collimating lens and the optical axis.
In some embodiments, the first preset distance is (0, l); and L is the corresponding moving distance when the emergent light of the collimating lens is parallel light.
In some embodiments, the first position is a position of the collimating lens from the laser f+l; and f is the focal length of the collimating lens.
In some embodiments, the first adjustment of the collimating lens includes:
from X, Y, Z, θx, θ Y And theta Z Performing primary adjustment on the collimating lens in six dimensions; wherein said at least one ofX is the transverse axis direction perpendicular to the optical axis; the Y is a longitudinal axis direction perpendicular to the optical axis, and the Z is an optical axis direction; the theta x is an included angle between the collimating lens and a transverse axis; the theta is as follows Y An included angle between the collimating lens and the longitudinal axis; the theta is as follows Z Is the included angle between the collimating lens and the optical axis.
In some embodiments, said performing a second adjustment of said collimating lens comprises:
performing a second adjustment on the collimating lens from two dimensions, X and Y; wherein, X is the horizontal axis direction vertical to the optical axis; and Y is the longitudinal axis direction vertical to the optical axis.
In some embodiments, one or more of an optical isolator, an optical filter, a 45 degree inverse prism, and a cylindrical mirror are further disposed between the laser and the waveguide, and/or between the collimating lens and the waveguide.
The application also provides a double-lens coupling device of the optical module transmitting assembly, which comprises the following components:
the first determining module is used for determining a first position of the collimating lens based on the fact that emergent light of the collimating lens between the laser and the waveguide is converged on the waveguide and the collimating lens is adjusted for the first time; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process;
the second determining module is used for moving the collimating lens to the direction of the laser by a first preset distance based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process;
a first curing module for curing the collimating lens based on the second position;
the third determining module is used for setting a converging lens between the collimating lens and the waveguide, adjusting the converging lens and determining the position of the converging lens; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the converging lens;
a second curing module for curing the converging lens based on a position of the converging lens;
the second determining module is further configured to move the collimating lens by a second preset distance in the direction of the laser each time, using the first position as a starting point; after each movement is finished, the collimating lens and the converging lens are adjusted, and the maximum optical power of the waveguide corresponding to each movement is obtained; and comparing the maximum optical power of the waveguide corresponding to each movement to determine a first preset distance of the collimating lens.
The application also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a method of optical module transmitting assembly dual lens coupling as defined in any one of the above when executing the program.
The application also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of optical module transmission assembly dual lens coupling as described in any of the above.
The application also provides a computer program product comprising a computer program which when executed by a processor implements a method of optical module transmission assembly dual lens coupling as claimed in any one of the above.
According to the optical module transmitting assembly double-lens coupling method and the related equipment, the purpose of maximum optical power of the waveguide is achieved without adding extra equipment investment, the alignment lens is adjusted firstly, the convergence lens is arranged in the optical path after the alignment lens is solidified, the convergence lens is adjusted, the coupling efficiency and the production efficiency are both achieved, and the optical coupling efficiency can achieve the effect of an expensive double-six-axis coupling table.
Drawings
In order to more clearly illustrate the application or the technical solutions of the prior art, the drawings used 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 application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a dual-lens coupling method of an optical module transmitting assembly according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an optical path provided by an embodiment of the present application;
FIG. 3 is a second schematic diagram of an optical path according to an embodiment of the present application;
FIG. 4 is a third schematic view of an optical path provided by an embodiment of the present application;
FIG. 5 is a fourth schematic diagram of an optical path provided by an embodiment of the present application;
fig. 6 is a schematic structural diagram of a dual-lens coupling device of an optical module transmitting assembly according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without any inventive effort, are intended to be within the scope of the application.
Fig. 1 is a schematic diagram of a dual-lens coupling method of an optical module transmitting assembly according to an embodiment of the present application, as shown in fig. 1, where the dual-lens coupling method of the optical module transmitting assembly includes:
step 101, based on the fact that emergent light of a collimating lens between a laser and a waveguide is converged on the waveguide, the collimating lens is adjusted for the first time, and the first position of the collimating lens is determined; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process.
Specifically, fig. 2 is a schematic diagram of an optical path provided by an embodiment of the present application, as shown in fig. 2, light emitted by a laser is shaped by a collimating lens to form parallel light, and after a distance between the parallel light and the light is transmitted, the parallel light is converged by a converging lens and enters a waveguide. As can be seen from fig. 2, the dual lens coupling system includes: lasers, collimating lenses, converging lenses, and waveguides, the optical power output by the waveguides in the dual lens coupling system shown in fig. 2 is not optimal.
The lasers may be distributed feedback (Distributed Feedback Laser, DFB) lasers, fabry Perot (FP) lasers, tuneaway (External Modulated Laser, EML) lasers, vertical cavity surface emitting (Vertical Cavity Surface Emitting Laser, VCSEL) lasers, etc., mounted on a box package or heat sink.
The waveguide is fixed on the box shell or the heat sink, and the waveguide can be an optical fiber, a silicon optical waveguide or a Photo Diode (PD) photosurface, etc.
A collimating lens is arranged between the laser and the waveguide, and the first adjustment is carried out on the collimating lens for the purpose that the light emitted by the laser is converged on the waveguide after passing through the collimating lens and the light power output by the waveguide is maximum. When the first position of the collimating lens is to achieve the purpose, the collimating lens is away from the laser.
In some embodiments, the first adjustment of the collimating lens includes:
from X, Y, Z, θx, θ Y And theta Z Performing primary adjustment on the collimating lens in six dimensions; wherein, X is the horizontal axis direction vertical to the optical axis; the Y is a longitudinal axis direction perpendicular to the optical axis, and the Z is an optical axis direction; the theta x is an included angle between the collimating lens and a transverse axis; the theta is as follows Y An included angle between the collimating lens and the longitudinal axis; the theta is as follows Z Is the included angle between the collimating lens and the optical axis.
Specifically, a space coordinate system is established, and three coordinate axes are respectively a transverse axis (X axis), a longitudinal axis (Y axis) and an optical axis (Z axis), the direction of the optical path is the Z axis, the direction perpendicular to the Z axis in the horizontal plane is the X axis, and the direction perpendicular to the Z axis in the vertical plane is the Y axis. From the aspect of distance, the distances between the optical centers of the collimating lenses and the three coordinate axes are respectively related. From the aspect of angle, the included angles between the collimating lens and three coordinate axes are respectively involved.
From X, Y, Z, θx, θ Y And theta Z The six dimensions make a first adjustment to the collimating lens, i.e. an omni-directional adjustment to the collimating lens in both distance and angle, to maximize the optical power of the waveguide.
The optical module transmitting assembly double-lens coupling method provided by the embodiment of the application is realized by adopting the methods of X, Y, Z, θx and θ Y And theta Z The collimating lens is adjusted in six dimensions, which is beneficial to better determining the maximum optical power of the waveguide.
In some embodiments, the first position is a position of the collimating lens from the laser f+l; and f is the focal length of the collimating lens.
Specifically, f is the focal length of the collimating lens, and L is the distance that the collimating lens moves from the first position to the laser when the outgoing light of the collimating lens is parallel light.
Fig. 3 is a schematic diagram of a second optical path provided by the embodiment of the present application, as shown in fig. 3, when the collimating lens is at a position away from the laser f+l, the light emitted by the laser is converged on the waveguide after passing through the collimating lens, and the optical power output by the waveguide is the largest.
102, moving the collimating lens to a first preset distance in the direction of the laser based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process.
Specifically, the collimator lens is moved by a first preset distance in the direction of the laser by taking the first position as a starting point.
In some embodiments, the first preset distance is (0, l); and L is the corresponding moving distance when the emergent light of the collimating lens is parallel light.
Specifically, the first preset distance is between 0 and L (excluding 0 and L). When the collimating lens moves towards the laser device by L, the emergent light of the collimating lens is parallel light; when the distance of the collimating lens moving towards the laser is smaller than L, the emergent light of the collimating lens is convergent light. The closer the moving distance is to L, the closer the outgoing light of the collimator lens is to parallel light.
For example, in the case where f is 180 μm and L is 80 μm, the first preset distance is 60 μm.
Fig. 4 is a third schematic view of the optical path provided by the embodiment of the present application, as shown in fig. 4, from the first position f+l, the collimating lens is moved toward the laser by t, where t is a value greater than 0 and less than L, and at this time, the distance between the laser and the collimating lens is f+l-t, and the outgoing light of the collimating lens is converging light with a far converging point.
After the collimating lens moves a first preset distance, the collimating lens is further required to be adjusted for the second time, so that the emergent power of the waveguide is maximized. And when the waveguide emergent power is maximum, dispensing to solidify the collimating lens.
In some embodiments, said performing a second adjustment of said collimating lens comprises:
performing a second adjustment on the collimating lens from two dimensions, X and Y; wherein, X is the horizontal axis direction vertical to the optical axis; and Y is the longitudinal axis direction vertical to the optical axis.
Specifically, the direction of the optical path is the Z axis, the direction perpendicular to the Z axis in the horizontal plane is the X axis, and the direction perpendicular to the Z axis in the vertical plane is the Y axis.
After the first preset distance is moved, the position on the Z axis is optimal, and no readjustment is needed, so that only the second adjustment is needed from the alignment lenses on the X axis and the Y axis to maximize the optical power of the waveguide.
According to the optical module transmitting assembly double-lens coupling method provided by the embodiment of the application, the collimating lens is firstly adjusted to be optimal on the Z axis, and then other adjustments are carried out, so that the optimal position of the collimating lens can be accurately determined in double-lens coupling, and the maximum optical power of the waveguide can be better determined.
Step 103, curing the collimating lens based on the second position.
Specifically, after the second position of the collimating lens is determined, the collimating lens is cured in the second position by dispensing.
104, setting a converging lens between the collimating lens and the waveguide, adjusting the converging lens and determining the position of the converging lens; the position of the convergent lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the convergent lens.
Specifically, after curing the collimator lens, a converging lens is disposed between the collimator lens and the waveguide.
Fig. 5 is a schematic diagram of an optical path provided by an embodiment of the present application, as shown in fig. 5, the collimating lens moves towards the laser by t, the distance between the laser and the collimating lens is f+l-t, a converging lens is disposed between the collimating lens and the waveguide, the outgoing light of the collimating lens irradiates on the converging lens, and the outgoing light of the converging lens converges on the waveguide.
From X, Y, Z, θx, θ Y And theta Z The converging lens is adjusted in six dimensions to maximize the optical power output by the waveguide. The position corresponding to the maximum optical power output by the waveguide is the position of the converging lens.
Step 105, solidifying the convergent lens based on the position of the convergent lens.
Specifically, after the position of the converging lens is determined, the converging lens is cured in this position by dispensing.
According to the optical module transmitting assembly double-lens coupling method provided by the embodiment of the application, under the condition that extra equipment investment is not increased, the aim of maximum optical power of the waveguide is achieved, the alignment lens is adjusted first, the alignment lens is solidified, then the converging lens is arranged in the optical path, and the converging lens is adjusted, so that the effects of taking the coupling efficiency and the production efficiency into consideration are achieved, and the optical coupling efficiency can achieve the effect of an expensive double-six-axis coupling table.
In some embodiments, the first preset distance is determined by:
moving the collimating lens to the direction of the laser by a second preset distance each time by taking the first position as a starting point;
after each movement is finished, the collimating lens and the converging lens are adjusted, and the maximum optical power of the waveguide corresponding to each movement is obtained;
and comparing the maximum optical power of the waveguide corresponding to each movement to determine a first preset distance of the collimating lens.
Specifically, the first preset distance may be precisely determined by:
the first step is to move the collimating lens to the direction of the laser by a second preset distance by taking the first position as a starting point. For example, the second preset distance is 10 μm.
And secondly, after the movement is finished, the collimating lens is adjusted from two dimensions of an X axis and a Y axis to maximize the optical power output by the waveguide, and then the collimating lens is fixed.
Third, a converging lens is arranged between the collimating lens and the waveguide, from X, Y, Z, θx, θ Y And theta Z The converging lens is adjusted in six dimensions, the optical power output by the waveguide is maximized again, the maximum optical power corresponding to the movement is determined, and the optical power value is recorded.
And fourthly, moving the collimating lens to the direction of the laser again by a second preset distance, and repeating the second step and the third step.
And fifthly, after the plurality of times of movement, comparing the maximum optical power corresponding to the plurality of times of movement respectively, determining the real maximum optical power, and determining the movement distance corresponding to the real maximum optical power as a first preset distance.
According to the optical module transmitting assembly double-lens coupling method, the maximum optical power of the waveguide corresponding to each movement is compared through each movement of the second preset distance, so that the first preset distance of the collimating lens is accurately determined, and the coupling efficiency is further improved.
In some embodiments, one or more of an optical isolator, an optical filter, a 45 degree inverse prism, and a cylindrical mirror are further disposed between the laser and the waveguide, and/or between the collimating lens and the waveguide.
Specifically, other optical devices are arranged between the laser and the waveguide, and/or other optical devices are arranged between the collimating lens and the waveguide, and the other optical devices are used for achieving different purposes of adjusting the light path. The other optics may be one or more of an optical isolator, an optical filter, a 45 degree inverse prism, and a cylindrical mirror.
According to the optical module transmitting assembly double-lens coupling method provided by the embodiment of the application, other optical devices are arranged between the laser and the waveguide, and/or other optical devices are also arranged between the collimating lens and the waveguide, so that the optical path adjustment is more facilitated.
The optical module transmitting assembly double-lens coupling device provided by the application is described below, and the optical module transmitting assembly double-lens coupling device described below and the optical module transmitting assembly double-lens coupling method described above can be correspondingly referred to each other.
Fig. 6 is a schematic structural diagram of a dual-lens coupling device for an optical module transmitting assembly according to an embodiment of the present application, and as shown in fig. 6, the present application further provides a dual-lens coupling device for an optical module transmitting assembly, including: a first determination module 601, a second determination module 602, a first curing module 603, a third determination module 604, and a second curing module 605, wherein:
a first determining module 601, configured to determine a first position of a collimating lens based on that outgoing light of the collimating lens between a laser and a waveguide is converged on the waveguide, and perform a first adjustment on the collimating lens; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process;
a second determining module 602, configured to move the collimating lens towards the direction of the laser by a first preset distance based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process;
a first curing module 603 for curing the collimating lens based on the second position;
a third determining module 604, configured to set a converging lens between the collimating lens and the waveguide, adjust the converging lens, and determine a position of the converging lens; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the converging lens;
a second curing module 605 for curing the converging lens based on its position.
In some embodiments, the second determining module 602 is further configured to move the collimating lens a second preset distance in a direction of the laser each time, starting from the first position; the second determining module 602 is further configured to adjust the collimating lens and the converging lens after each movement is completed, and obtain a maximum optical power of the waveguide corresponding to each movement;
the second determining module 602 is further configured to compare the maximum optical power of the waveguide corresponding to each movement, and determine a first preset distance of the collimating lens.
In some embodiments, the first preset distance is (0, l); and L is the corresponding moving distance when the emergent light of the collimating lens is parallel light.
In some embodiments, the first position is a position of the collimating lens from the laser f+l; and f is the focal length of the collimating lens.
In some embodiments, the first determining module 601 is further specifically configured to: from X, Y, Z, θx, θ Y And theta Z Performing primary adjustment on the collimating lens in six dimensions; wherein, X is the horizontal axis direction vertical to the optical axis; the Y is a longitudinal axis direction perpendicular to the optical axis, and the Z is an optical axis direction; the theta x is an included angle between the collimating lens and a transverse axis; the theta is as follows Y An included angle between the collimating lens and the longitudinal axis; the theta is as follows Z For the quasi-And an included angle between the straight lens and the optical axis.
In some embodiments, the first adjustment curing module 602 is further specifically configured to: performing a second adjustment on the collimating lens from two dimensions, X and Y; wherein, X is the horizontal axis direction vertical to the optical axis; and Y is the longitudinal axis direction vertical to the optical axis.
In some embodiments, one or more of an optical isolator, an optical filter, a 45 degree inverse prism, and a cylindrical mirror are further disposed between the laser and the waveguide, and/or between the collimating lens and the waveguide.
Specifically, the dual-lens coupling device for the optical module transmitting assembly provided by the embodiment of the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effects, and the same parts and beneficial effects as those of the method embodiment in the present embodiment are not described in detail herein.
Fig. 7 is a schematic structural diagram of an electronic device according to the present application, and as shown in fig. 7, the electronic device may include: processor 710, communication interface (Communications Interface) 720, memory 730, and communication bus 740, wherein processor 710, communication interface 720, memory 730 communicate with each other via communication bus 740. Processor 710 may invoke logic instructions in memory 730 to perform a light module transmitting component dual lens coupling method comprising: based on the fact that emergent light of a collimating lens between a laser and a waveguide is converged on the waveguide, the collimating lens is adjusted for the first time, and the first position of the collimating lens is determined; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process; moving the collimating lens to a first preset distance in the direction of the laser based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process; curing the collimating lens based on the second position; a converging lens is arranged between the collimating lens and the waveguide, the converging lens is adjusted, and the position of the converging lens is determined; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the converging lens; curing the converging lens based on its position.
Further, the logic instructions in the memory 730 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present application also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, and when the computer program is executed by a processor, the computer can execute the optical module transmitting assembly dual lens coupling method provided by the above methods, and the method includes: based on the fact that emergent light of a collimating lens between a laser and a waveguide is converged on the waveguide, the collimating lens is adjusted for the first time, and the first position of the collimating lens is determined; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process; moving the collimating lens to a first preset distance in the direction of the laser based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process; curing the collimating lens based on the second position; a converging lens is arranged between the collimating lens and the waveguide, the converging lens is adjusted, and the position of the converging lens is determined; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the converging lens; curing the converging lens based on its position.
In yet another aspect, the present application further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the optical module transmitting assembly dual lens coupling method provided by the above methods, the method comprising: based on the fact that emergent light of a collimating lens between a laser and a waveguide is converged on the waveguide, the collimating lens is adjusted for the first time, and the first position of the collimating lens is determined; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process; moving the collimating lens to a first preset distance in the direction of the laser based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process; curing the collimating lens based on the second position; a converging lens is arranged between the collimating lens and the waveguide, the converging lens is adjusted, and the position of the converging lens is determined; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the converging lens; curing the converging lens based on its position.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present application without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
The terms "first," "second," and the like in embodiments of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application 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 technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A method of dual-lens coupling of an optical module transmitting assembly, comprising:
based on the fact that emergent light of a collimating lens between a laser and a waveguide is converged on the waveguide, the collimating lens is adjusted for the first time, and the first position of the collimating lens is determined; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process;
moving the collimating lens to a first preset distance in the direction of the laser based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process;
curing the collimating lens based on the second position;
a converging lens is arranged between the collimating lens and the waveguide, the converging lens is adjusted, and the position of the converging lens is determined; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the converging lens;
solidifying the converging lens based on the position of the converging lens;
wherein the first preset distance is determined by:
moving the collimating lens to the direction of the laser by a second preset distance each time by taking the first position as a starting point;
after each movement is finished, the collimating lens and the converging lens are adjusted, and the maximum optical power of the waveguide corresponding to each movement is obtained;
and comparing the maximum optical power of the waveguide corresponding to each movement, and taking the movement distance corresponding to the maximum value of the comparison result as a first preset distance of the collimating lens.
2. The method of claim 1, wherein adjusting the collimating lens and the converging lens to obtain the maximum optical power of the waveguide for each movement comprises:
adjusting a collimating lens from two dimensions of X and Y to maximize the optical power output by the waveguide, and then fixing the collimating lens;
from X, Y, Z, θx, θ Y And theta Z Adjusting the converging lens in six dimensions, and maximizing the optical power output by the waveguide again, wherein the optical power is taken as the maximum optical power of the waveguide corresponding to the movement;
wherein, X is the horizontal axis direction vertical to the optical axis; the Y is a longitudinal axis direction perpendicular to the optical axis, and the Z is an optical axis direction; the theta x is an included angle between the collimating lens and a transverse axis; the theta is as follows Y An included angle between the collimating lens and the longitudinal axis; the theta is as follows Z Is the included angle between the collimating lens and the optical axis.
3. The optical module transmission assembly dual-lens coupling method of claim 1, wherein the first preset distance is (0, l); and L is the corresponding moving distance when the emergent light of the collimating lens is parallel light.
4. The method of dual-lens coupling of an optical module emission assembly of claim 3, wherein the first position is a position of the collimating lens from the laser f+l; and f is the focal length of the collimating lens.
5. The method of dual-lens coupling of an optical module emission assembly of claim 1, wherein said first adjustment of said collimating lens comprises:
from X, Y, Z, θx, θ Y And theta Z Performing primary adjustment on the collimating lens in six dimensions; wherein, X is the horizontal axis direction vertical to the optical axis; the Y is a longitudinal axis direction perpendicular to the optical axis, and the Z is an optical axis direction; the theta x is an included angle between the collimating lens and a transverse axis; the theta is as follows Y An included angle between the collimating lens and the longitudinal axis; the theta is as follows Z Is the included angle between the collimating lens and the optical axis.
6. The method of claim 1, wherein said second adjusting the collimating lens comprises:
performing a second adjustment on the collimating lens from two dimensions, X and Y; wherein, X is the horizontal axis direction vertical to the optical axis; and Y is the longitudinal axis direction vertical to the optical axis.
7. The optical module transmission assembly dual-lens coupling method according to claim 1, wherein one or more of an optical isolator, an optical filter, a 45-degree inverse prism, and a cylindrical mirror are further provided between the laser and the waveguide, and/or between the collimator lens and the waveguide.
8. A dual-lens coupling device for an optical module transmitting assembly, comprising:
the first determining module is used for determining a first position of the collimating lens based on the fact that emergent light of the collimating lens between the laser and the waveguide is converged on the waveguide and the collimating lens is adjusted for the first time; the first position is the position corresponding to the maximum optical power of the waveguide in the first adjustment process;
the second determining module is used for moving the collimating lens to the direction of the laser by a first preset distance based on the first position; after the movement is finished, performing second adjustment on the collimating lens, and determining a second position of the collimating lens; the second position is the position corresponding to the maximum optical power of the waveguide in the second adjustment process;
a first curing module for curing the collimating lens based on the second position;
the third determining module is used for setting a converging lens between the collimating lens and the waveguide, adjusting the converging lens and determining the position of the converging lens; the position of the converging lens is the position corresponding to the maximum optical power of the waveguide in the process of adjusting the converging lens;
a second curing module for curing the converging lens based on a position of the converging lens;
the second determining module is further configured to move the collimating lens by a second preset distance in the direction of the laser each time, using the first position as a starting point; after each movement is finished, the collimating lens and the converging lens are adjusted, and the maximum optical power of the waveguide corresponding to each movement is obtained; and comparing the maximum optical power of the waveguide corresponding to each movement, and taking the movement distance corresponding to the maximum value of the comparison result as a first preset distance of the collimating lens.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the optical module transmission assembly double lens coupling method according to any one of claims 1 to 7 when executing the computer program.
10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the optical module transmission assembly dual lens coupling method of any of claims 1 to 7.
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