Light receiving component and method for packaging light receiving component

Abstract

The embodiments of the present disclosure relate to an optical receiving component and a method for packaging the optical receiving component. The optical receiving component includes: a tube shell; an optical fiber adapter coupled to the tube shell so as to transmit an optical signal to the interior of the tube shell; an optical branching component arranged inside the tube shell, the optical branching component is an integrated structure, including: a splitter part for dividing an optical signal from the optical fiber adapter into multiple optical signals to output to a lens array part; and a lens array part including a plurality of lenses, each of the plurality of lenses corresponding to each of the multiple optical signals, so as to transmit the corresponding optical signal to a corresponding photodetector; and a photodetector array including a plurality of photodetectors for detecting the multiple optical signals, the light receiving surface of each of the plurality of photodetectors being perpendicular to the optical axis of the corresponding lens. The present disclosure can significantly reduce the difficulty of lens coupling.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of optical transmission, and more particularly to a light receiving assembly and a method for packaging the light receiving assembly. Background Art

[0002] In traditional optical receiving components, a splitter is usually used to divide the optical signal into multiple optical signals. Each optical signal after branching reaches the corresponding photodetector through the corresponding lens and 45° prism. Among them, it is necessary to assemble the lens and the 45° prism first, and then couple the lens with the splitter. On the one hand, the lens and the 45° prism need to be glued together with glue, which has high requirements for the pasting process and is difficult to paste. Once the pasting process does not meet the requirements, the lens and the 45° prism will be scrapped. On the other hand, multiple lenses are set separately, and each lens needs to be coupled with the splitter separately. The coupling is difficult and easily leads to low coupling efficiency, thereby affecting the response current of the photodetector.

[0003] In summary, the traditional optical receiving components have shortcomings such as difficulty in lens coupling and difficulty in pasting the lens and the 45° prism. Summary of the invention

[0004] In view of the above problems, the present disclosure provides a light receiving component and a method for packaging the light receiving component, which can significantly reduce the difficulty of lens coupling.

[0005] According to the first aspect of the present disclosure, a light receiving component is provided. The light receiving component includes: a tube shell; an optical fiber adapter coupled to the tube shell so as to transmit an optical signal to the inside of the tube shell; an optical branching component arranged inside the tube shell, the optical branching component is an integrated structure, including: a light splitting part for dividing an optical signal from the optical fiber adapter into multiple optical signals to output to a lens array part; and a lens array part including a plurality of lenses, each of the plurality of lenses corresponding to each optical signal in the multiple optical signals, so as to transmit the corresponding optical signal to a corresponding photodetector; and a photodetector array including a plurality of photodetectors for detecting the multiple optical signals, the light receiving surface of each photodetector in the plurality of photodetectors being perpendicular to the optical axis of the corresponding lens.

[0006] In some embodiments, the spectrometer includes: a light emitting surface of the spectrometer, which is used to output multiple optical signals; the lens array part includes: a light incident surface of the lens array part, the light incident surface of the lens array part is perpendicular to the optical axis of each lens in the multiple lenses, and the angle between the light incident surface of the lens array part and the light emitting surface of the spectrometer is an acute angle.

[0007] In some embodiments, the optical receiving component also includes: a displacement prism, which is used to transmit the optical signal from the optical fiber adapter to the optical branching component, and the displacement prism includes: a first surface, which is the surface of the displacement prism close to the optical fiber adapter, and the first surface includes: a light input portion, which is used to allow the optical signal from the optical fiber adapter to enter the displacement prism for transmission to the second surface; and a reflecting portion, which is used to reflect the optical signal reflected by the second surface toward the optical branching component so that the optical signal is transmitted to the optical branching component; and a second surface, which is used to reflect the optical signal entering the displacement prism through the light input portion of the first surface toward the reflecting portion of the first surface; the first surface and the second surface are arranged in contact with each other, and the angle between the first surface and the second surface is an acute angle.

[0008] In some embodiments, the displacement prism and the light splitting part are an integrated structure, or the displacement prism is attached to a light incident surface side of the light splitting part.

[0009] In some embodiments, the light receiving component also includes: a pad, arranged inside the tube shell, for supporting the photodetector array and the transimpedance amplifier, the pad including: a first surface, the first surface is perpendicular to the optical axis of the lens; and a second surface, the second surface is perpendicular to the first surface; and a transimpedance amplifier, the transimpedance amplifier is arranged on the second surface; the photodetector array is arranged on the first surface; each photodetector in the photodetector array is respectively bonded to the transimpedance amplifier.

[0010] In some embodiments, the plurality of lenses are evenly distributed, and the plurality of photodetectors are evenly distributed.

[0011] According to the second aspect of the present disclosure, a method for assembling an optical receiving assembly is provided. Wherein the optical receiving group is the optical receiving assembly according to the first aspect of the present disclosure, and the method comprises: coupling an optical fiber adapter to a tube shell; installing a photodetector array to a first predetermined position in the tube shell so that a plurality of photodetectors in the photodetector array face the optical fiber adapter; arranging an optical branching component at a second predetermined position in the tube shell; transmitting an optical signal into the tube shell using the optical fiber adapter so that the optical signal is transmitted to the photodetector array via the optical branching component; obtaining response currents of a plurality of photodetectors at a control device; determining whether the response current meets a predetermined condition; and in response to determining that the response current does not meet the predetermined condition, adjusting the position of the optical branching component until the response current meets the predetermined condition, so as to fix the optical branching component at a position where the response current meets the predetermined condition.

[0012] In some embodiments, determining whether the response current meets the predetermined condition includes: in response to determining that the response currents of the plurality of photodetectors are all greater than a predetermined current threshold, determining that the response current meets the predetermined condition.

[0013] In some embodiments, in response to determining that the response current does not meet the predetermined condition, adjusting the position of the optical branching component until the response current meets the predetermined condition includes: in response to determining that the response currents of multiple photodetectors are not all greater than a predetermined current threshold, adjusting the position of the optical branching component so that the response currents of the multiple photodetectors are all greater than the predetermined current threshold; and continuing to adjust the position of the optical branching component until the response current of at least one of the multiple photodetectors attenuates, so as to determine that the response current before attenuation meets the predetermined condition.

[0014] In some embodiments, installing the photodetector array to the first predetermined position in the tube shell includes: fixing a spacer at a third predetermined position in the tube shell; and pasting the photodetector array to the first surface of the spacer.

[0015] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements.

[0017] Figure 1 A partial structural schematic diagram of an optical receiving component according to an embodiment of the present disclosure is shown.

[0018] Figure 2 A partial structural schematic diagram of an optical receiving component according to an embodiment of the present disclosure is shown.

[0019] Figure 3 A schematic structural diagram of an optical splitting component and a displacement prism according to an embodiment of the present disclosure is shown.

[0020] Figure 4 A schematic structural diagram of the optical splitting component and the displacement prism along the Z-axis direction of an embodiment of the present disclosure is shown.

[0021] Figure 5 A schematic diagram of a system for implementing a method for packaging a light receiving component according to an embodiment of the present disclosure is shown.

[0022] Figure 6 A flow chart of a method for packaging a light receiving component according to an embodiment of the present disclosure is shown.

[0023] Figure 7 A flow chart of a method for determining whether a response current meets a predetermined condition according to an embodiment of the present disclosure is shown.

[0024] Figure 8 A flow chart of a method for adjusting the position of an optical branching component according to an embodiment of the present disclosure is shown.

[0025] Fig. 9 A block diagram of an electronic device suitable for implementing the embodiments of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0026] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0027] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0028] As described above, in a traditional optical receiving component, an optical signal is transmitted to a splitter through an optical fiber pin, and is then divided by the splitter into multiple optical signals of specific wavelengths. The transmission direction of the optical signal is then turned 90 degrees through multiple lenses and 45° prisms corresponding to the multiple optical signals output by the splitter, and then the corresponding multiple photodetectors detect the optical signals of the corresponding optical paths. This solution requires that the lens and the 45° prism be glued together, which has high requirements for the pasting process and is difficult to paste. Once the pasting process does not meet the requirements, the lens and the 45° prism will be scrapped. Moreover, multiple lenses are set separately, and each lens needs to be coupled to the splitter separately. The coupling is difficult and easily leads to low coupling efficiency, thereby affecting the response current of the photodetector.

[0029] In order to at least partially solve one or more of the above-mentioned problems and other potential problems, an example embodiment of the present disclosure proposes a light receiving component solution. In the solution of the present disclosure, the optical branching component is an integrated structure, which includes a splitter part and a corresponding lens array part, and the splitter part is used to split the optical signal from the optical fiber adapter into multiple optical signals to output to the lens array part. Each of the multiple lenses of the lens array part corresponds to each optical signal in the multiple optical signals, so as to transmit the corresponding optical signal to the corresponding photodetector. Through the integrated structure of the optical branching component, the splitter part and the multiple lenses of the lens array part are naturally coupled, and the step of coupling the lens to the splitter part can be omitted, which significantly reduces the difficulty of lens coupling.

[0030] The optical receiving component according to the embodiment of the present disclosure is described in detail below. Figure 1 A partial structural schematic diagram of an optical receiving assembly 100 according to an embodiment of the present disclosure is shown. Figure 2 A partial structural schematic diagram of an optical receiving assembly 100 according to an embodiment of the present disclosure is shown. Figure 3 A schematic structural diagram of the optical splitting component 106 and the displacement prism 122 of an embodiment of the present disclosure is shown. Figure 4 A schematic diagram of the structure of the optical branching component 106 and the displacement prism 122 along the Z-axis direction of an embodiment of the present disclosure is shown. For the convenience of explanation, the X-axis, Y-axis and Z-axis are shown in the figure. The optical receiving component 100 includes: a tube shell 104, an optical fiber adapter 102, an optical branching component 106 and a photodetector array 114. Among them, the optical fiber adapter 102 is coupled to the tube shell 104 so as to transmit the optical signal to the inside of the tube shell 104. The optical branching component 106 is arranged inside the tube shell 104. The optical branching component 106 is an integrated structure. The optical branching component 106 includes a splitter 108 and a lens array part 110. Among them, the splitter 108 is used to split the optical signal from the optical fiber adapter 102 into multiple optical signals to output to the lens array part 110. The lens array part 110 includes a plurality of lenses 112. Each lens 112 of the plurality of lenses 112 corresponds to each optical signal of the multiple optical signals, so as to transmit the corresponding optical signal to the corresponding photodetector 116. The photodetector array 114 includes a plurality of photodetectors 116 for detecting the multiple optical signals, and a light receiving surface of each photodetector 116 of the plurality of photodetectors 116 is perpendicular to the optical axis of the corresponding lens 112. In some embodiments, the X-axis corresponds to the direction in which the length of the tube shell 104 extends, the Y-axis corresponds to the direction in which the width of the tube shell 104 extends, and the Z-axis corresponds to the direction in which the height of the tube shell 104 extends.

[0031] In some embodiments, the optical receiving component 100 further includes, for example, a displacement prism 122 , a spacer 128 , and a transimpedance amplifier 130 .

[0032] In the above scheme, by means of the integrated structure of the optical splitting component 106, the light splitting part 108 and the multiple lenses 112 of the lens array part 110 are naturally coupled, and the step of coupling the lens 112 with the light splitting part 108 can be omitted, which significantly reduces the difficulty of lens coupling, is conducive to ensuring the light coupling efficiency, and ensures that the response current of the photodetector meets the predetermined requirements. Further, by making the light receiving surface of each of the multiple photodetectors 116 perpendicular to the optical axis of the corresponding lens 112, the 45° prism in the traditional light receiving component can be omitted, so that the optical path can be simplified, and the step of pasting the lens and the 45° prism can be omitted, reducing the process difficulty.

[0033] Regarding the light splitter 108, for example, it includes a light-incoming surface 121 of the light splitter and a light-emitting surface 118 of the light splitter. The light-incoming surface 121 of the light splitter is used for the optical signal from the optical fiber adapter 102 to be incident on the light splitter 108. The light-emitting surface 118 of the light splitter is used for outputting multiple optical signals. It should be understood that the light-incoming surface 121 of the light splitter is arranged opposite to the light-emitting surface 118 of the light splitter. A corresponding film layer is arranged on the light-emitting surface 118 of the light splitter at least within a predetermined range of the area where the multiple optical signals are output, so that the optical signals of the corresponding wavelength range are output, and the optical signals outside the wavelength range are emitted to the light-incoming surface 121 of the light splitter. The light-incoming surface 121 of the light splitter reflects the optical signal reflected by the light-emitting surface 118 of the light splitter to the light-emitting surface 118 of the light splitter, so that the optical signal of the corresponding wavelength is output in the corresponding area of ​​the light-emitting surface 118 of the light splitter. In some embodiments, the light splitter 108 is a parallelogram, and the angle between the incident light signal L1 and the light splitter light emitting surface 118 is angle θ1. By configuring the angle θ1 between the incident light signal L1 and the light splitter light emitting surface 118 differently, the distance between the multiple light signals output by the light splitter 108 can be adjusted.

[0034] Regarding the lens array part 110, for example, it includes a lens array part light incident surface 120 and a lens array part light exit surface 111. It should be understood that the lens array part light incident surface 120 is arranged opposite to the lens array part light exit surface 111. The lens array part light incident surface 120 is used for the multiple optical signals output by the spectrometer 108 to be incident on the lens array part 110. The lens array part light incident surface 120 is perpendicular to the optical axis of each lens 112 in the multiple lenses, so that the multiple optical signals are more efficient in being incident on the lens array part 110. The angle θ2 between the lens array part light incident surface 120 and the spectrometer light exit surface 118 of the spectrometer 108 is an acute angle. That is, a V-shaped groove is formed between the spectrometer 108 and the lens array part 110, so that a film layer is provided on the surface of the spectrometer light exit surface 118 of the spectrometer 108. A plurality of lenses 112 are formed on the lens array part light exit surface 111, and the plurality of lenses 112 are arranged in an array. In some embodiments, the multiple lenses 112 are all convex lenses. In some embodiments, the multiple lenses 112 are evenly distributed. For example, the distances between the optical axes of adjacent lenses 112 are equal, for example, D1 = D2 = D3. By evenly distributing the multiple lenses 112, it is easy to match the multi-path optical signals output by the light splitting unit 108, and it is convenient to set up the multiple photodetectors 116.

[0035] In some embodiments, the optical receiving component 100 further includes a displacement prism 122. The displacement prism 122 is located between the optical fiber adapter 102 and the light incident surface of the light splitter 108 (i.e., the light incident surface 121 of the light splitter), and is used to transmit the optical signal from the optical fiber adapter 102 to the optical branching component 106. The displacement prism 122 includes a first surface 123 and a second surface 124. Among them, the first surface 123 is the surface of the displacement prism 122 close to the optical fiber adapter 102. The first surface 123 includes: a light incident portion 125 and a light reflecting portion 126. The light incident portion 125 is used to allow the optical signal from the optical fiber adapter 102 to enter the displacement prism 122 to be transmitted to the second surface 124. The light reflecting portion 126 is used to reflect the optical signal reflected by the second surface 124 toward the optical branching component 106, so that the optical signal is transmitted to the optical branching component 106. For example, the light reflecting portion 126 is provided with a reflecting component (including but not limited to a film layer) for reflecting the optical signal. The second surface 124 is used to reflect the light signal entering the displacement prism 122 through the light incident portion 125 of the first surface 123 toward the light reflecting portion 126 of the first surface 123. For example, the second surface 124 is provided with a reflective component (including but not limited to a film layer) for reflecting the light signal. The first surface 123 and the second surface 124 are arranged in contact with each other, and the angle θ3 between the first surface 123 and the second surface 124 is an acute angle.

[0036] In the above scheme, the displacement of the optical signal can be achieved by the displacement prism 122, so that the optical fiber adapter 102 does not need to be aligned with the light path of the optical branching component 106 (for example, the light path corresponding to the optical signal L1), which provides flexibility for the setting of the relative position between the optical fiber adapter 102 and the optical branching component 106, and provides convenience for the reasonable use of the internal space of the tube shell 104. Further, by connecting the first surface 123 and the second surface 124 of the displacement prism 122, the volume of the displacement prism 122 can be reduced, saving the internal space of the tube shell 104. In addition, by having the first surface 123 and the light reflecting portion 126 at the same time, the optical signal enters the displacement prism 122, and the optical signal reflected by the second surface 124 is reflected out of the displacement prism 122, the volume of the displacement prism 122 can be reduced, saving the internal space of the tube shell 104.

[0037] In some embodiments, the displacement prism 122 is attached to a light incident surface of the light splitting unit 108. In this way, the position where the displacement prism 122 is attached to the light splitting unit 108 can be flexibly set according to actual needs.

[0038] In some embodiments, the displacement prism 122 and the light splitter 108 are integrated into one structure. In this way, there is no other medium between the displacement prism 122 and the light splitter 108, which can improve the efficiency of light transmission between the displacement prism 122 and the light splitter 108.

[0039] In some embodiments, the optical receiving component 100 further includes a first pad 128 and a transimpedance amplifier 130. The first pad 128 is disposed inside the tube shell 104 to support the photodetector array 114 and the transimpedance amplifier 130. The first pad 128 includes: a first surface and a second surface. The first surface is, for example, a surface facing the plurality of lenses 112, and the first surface is perpendicular to the optical axis of the lens 112. The photodetector array 114 is disposed on the first surface, facing the plurality of lenses 112. It should be understood that the first pad 128 has a predetermined height along the Z-axis direction, and the height of the plurality of photodetectors 116 of the photodetector array 114 on the first surface matches the plurality of lenses 112. The second surface is perpendicular to the first surface. The transimpedance amplifier 130 is disposed on the second surface. Each photodetector 116 in the photodetector array 114 is bonded to the transimpedance amplifier 130, respectively.

[0040] In the above scheme, through the first surface of the first pad 128, the light receiving surface of each photodetector 116 in the multiple photodetectors 116 can be perpendicular to the optical axis of the corresponding lens 112, so that the light receiving surface of each photodetector 116 in the multiple photodetectors 116 directly receives the light signal from the corresponding lens 112, without setting a 45° prism, for example. This can simplify the optical path and omit the step of pasting the lens and the 45° prism, thereby reducing the process difficulty.

[0041] In some embodiments, the plurality of lenses 112 are evenly distributed, and the plurality of photodetectors 116 are evenly distributed. In this way, it is convenient to couple the plurality of lenses 112 with the plurality of photodetectors 116.

[0042] In some embodiments, the optical receiving assembly 100 further includes a second pad 129 and a third pad 127. The second pad 129 is attached to the inner wall of the tube shell 104 to support the third pad 127 and the first pad 128. The third pad 127 is attached to the second pad 129, and the optical branching component 106 is attached to the third pad 127. The first pad 128 is attached to the third pad 127. The optical fiber adapter 102 and the tube shell 104 are welded together by laser welding.

[0043] The following combination Figures 5 to 8 , a method for packaging an optical receiving component according to an embodiment of the present disclosure is described. The method can be used to package the optical receiving component 100, for example. Figure 5 A schematic diagram of a system 500 for implementing a method for packaging a light receiving component according to an embodiment of the present disclosure is shown. The system 500 includes: a control device 502 and a six-axis displacement platform 504 . Figure 6 1 is a flowchart of a method 600 for packaging an optical receiving component according to an embodiment of the present disclosure. The method 600 may be implemented by the system 500. For example, the control device 502 may include Fig. 9 The electronic device 900 shown is used to generate a control signal. It should be understood that the method 600 may also include additional steps not shown and / or may omit the steps shown, and the scope of the present disclosure is not limited in this respect.

[0044] At step 602, the optical fiber adapter is coupled to the tube housing. For example, the optical fiber adapter 102 and the tube housing 104 are welded together by laser welding.

[0045] At step 604, the photodetector array is mounted to a first predetermined position in the housing so that a plurality of photodetectors in the photodetector array face the fiber optic adapter. In some embodiments, mounting the photodetector array to the first predetermined position in the housing includes, for example: fixing a spacer at a third predetermined position in the housing; and pasting the photodetector array to a first surface of the spacer. In some embodiments, the second spacer 129 is pasted on the inner wall of the housing 104, the third spacer 127 is pasted on the second spacer 129, the first spacer 128 is pasted on the third spacer 127, and the photodetector array 114 is pasted on the first predetermined position on the first surface of the first spacer 128.

[0046] At step 606, the optical splitting component is disposed at a second predetermined position in the housing. For example, the optical splitting component 106 is disposed at the second predetermined position on the third pad 127 so that the plurality of lenses 112 face the photodetector array 114 and the light-splitting portion light-entering surface 121 faces the fiber adapter 102. It should be understood that the second predetermined position is the initial position of the optical splitting component 106 disposed in the housing 104, which roughly corresponds to the target position of the optical splitting component 106 and generally requires calibration.

[0047] At step 608, an optical fiber adapter is used to transmit an optical signal into the tube housing so that the optical signal is transmitted to the photodetector array via the optical branching component.

[0048] At step 610 , response currents of a plurality of photodetectors are acquired at a control device.

[0049] At step 612, it is determined whether the response current meets a predetermined condition.

[0050] At step 614, if it is determined that the response current does not meet the predetermined conditions, the control device controls the six-axis displacement platform to adjust the position of the optical branching component until the response current meets the predetermined conditions, so as to fix the optical branching component at the position where the response current meets the predetermined conditions.

[0051] At step 616, the optical branching component is fixed at a position where the response current meets a predetermined condition.

[0052] For traditional optical receiving components, at least two six-axis displacement platforms are required to adjust the splitter and lens respectively, which is complex to control and difficult to couple. In the above scheme, by using the integrated structure of the optical splitting component, a six-axis displacement platform can be used to adjust the optical splitting component as a whole, so as to complete the coupling of the optical splitting component and the photodetector array, which is simple to operate and has high coupling efficiency.

[0053] Figure 7Flowchart of method 700 for determining whether a response current meets a predetermined condition according to an embodiment of the present disclosure is shown. Method 700 may be implemented by system 500. It should be understood that method 700 may also include additional steps not shown and / or may omit the steps shown, and the scope of the present disclosure is not limited in this respect.

[0054] At step 702 , it is determined whether the response currents of the plurality of photodetectors are all greater than a predetermined current threshold.

[0055] At step 704 , if it is determined that the response currents of the plurality of photodetectors are all greater than a predetermined current threshold, the control device determines that the response currents meet a predetermined condition.

[0056] At step 706 , if it is determined that the response currents of the plurality of photodetectors are not all greater than the predetermined current threshold, the control device determines that the response currents do not meet the predetermined condition.

[0057] The control device 502 controls the six-axis displacement platform 504 to adjust the position of the optical branching component 106, and obtains the response currents of the multiple photodetectors 116 in real time. If the response currents of the multiple photodetectors 116 are not all greater than the predetermined current threshold, the control device 502 determines that the response current does not meet the predetermined condition, and the control device 502 controls the six-axis displacement platform 504 to adjust the position of the optical branching component 106. If the response currents of the multiple photodetectors 116 are all greater than the predetermined current threshold, the control device 502 determines that the response current meets the predetermined condition, and the control device 502 controls the six-axis displacement platform 504 to stop adjusting the position of the optical branching component 106, so as to fix the optical branching component 106 at this position. Among them, when the response currents of the multiple photodetectors 116 are all greater than the predetermined current threshold, it indicates that the position of the optical branching component 106 meets the installation requirements.

[0058] Figure 8 The flowchart of the method 800 for adjusting the position of the optical branching component according to the embodiment of the present disclosure is shown. The method 800 may be implemented by the system 500. It should be understood that the method 800 may also include additional steps not shown and / or may omit the steps shown, and the scope of the present disclosure is not limited in this respect.

[0059] At step 802 , it is determined whether the response currents of the plurality of photodetectors are all greater than a predetermined current threshold.

[0060] At step 804, if it is determined that the response currents of the multiple photodetectors are not all greater than the predetermined current threshold, the control device controls the six-axis displacement platform to adjust the position of the optical branching component so that the response currents of the multiple photodetectors are all greater than the predetermined current threshold.

[0061] At step 806, the control device controls the six-axis displacement platform to continue adjusting the position of the optical branching component until the response current of at least one of the plurality of photodetectors decays, so as to determine that the response current before decay meets a predetermined condition.

[0062] When the response currents of the multiple photodetectors 116 are all greater than the predetermined current threshold, it indicates that the position of the optical splitting component 106 meets the basic installation requirements. In order to further improve the coupling efficiency, the control device 502 controls the six-axis displacement platform 504 to continue to adjust the position of the optical splitting component 106, and continues to obtain the response currents of the multiple photodetectors 116 in real time. If the response current of any of the response currents of the multiple photodetectors 116 does not attenuate when the new position of the optical splitting component 106 is compared with the position before the adjustment, it means that the new position is not worse than the position before the adjustment, and the new position can be used as an alternative position for the target position of the optical splitting component 106. The control device 502 records the position and the corresponding response currents of the plurality of photodetectors 116. Then, the control device 502 controls the six-axis displacement platform 504 to continue adjusting the position of the optical splitting component 106 and continues to obtain the response currents of the plurality of photodetectors 116 in real time until the response current of at least one of the plurality of photodetectors 116 attenuates. At this time, the control device 502 determines that the position where the attenuation occurs is lower in coupling efficiency than the previous position. Therefore, the control device 502 determines that the position before attenuation (i.e., the previous position) is the optimized position of the optical splitting component 106, so as to fix the optical splitting component 106 at the optimized position.

[0063] In the above scheme, after the position of the optical branching component 106 meets the basic installation requirements, the position of the optical branching component 106 is further adjusted to determine a better position, thereby obtaining a higher coupling efficiency and improving the performance of the optical receiving component.

[0064] The installation methods of other components of the optical receiving assembly of the embodiment of the present disclosure will not be described in detail here.

[0065] Fig. 9 The block diagram of an electronic device 900 suitable for implementing the embodiments of the present disclosure is schematically shown. The electronic device 900 can be used to implement Figure 5 The control device is used to perform one or more actions of methods 600, 700, and 800. Fig. 9As shown, the electronic device 900 includes a central processing unit (i.e., CPU 901), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (i.e., ROM 902) or loaded from a storage unit 908 to a random access memory (i.e., RAM 903). In RAM 903, various programs and data required for the operation of the electronic device 900 can also be stored. CPU 901, ROM 902, and RAM 903 are connected to each other via a bus 904. An input / output interface (i.e., I / O interface 905) is also connected to the bus 904.

[0066] Multiple components in the electronic device 900 are connected to the I / O interface 905, including: an input unit 906, an output unit 907, and a storage unit 908. The CPU 901 executes various methods and processes performed by the control device, such as executing one or more operations of methods 600, 700, and 800. For example, in some embodiments, one or more operations of methods 600, 700, and 800 may be implemented as a computer software program, which is stored in a machine-readable medium, such as a storage unit 908. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 900 via the ROM 902 and / or the communication unit 909. When the computer program is loaded into the RAM 903 and executed by the CPU 901, one or more operations of the methods 600, 700, and 800 described above may be executed. Alternatively, in other embodiments, the CPU 901 may be configured to execute one or more actions of methods 600, 700, and 800 in any other appropriate manner (e.g., by means of firmware).

[0067] It should be further noted that the present disclosure may be a method, an apparatus, a system and / or a computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for executing various aspects of the present disclosure.

[0068] Computer readable storage medium can be a tangible device that can hold and store instructions used by an instruction execution device. Computer readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (non-exhaustive list) of computer readable storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, for example, a punch card or a convex structure in a groove on which instructions are stored, and any suitable combination thereof. The computer readable storage medium used here is not interpreted as a transient signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated by a waveguide or other transmission medium (for example, a light pulse by an optical fiber cable), or an electrical signal transmitted by a wire.

[0069] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0070] The computer program instructions for performing the operation of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as "C" language or similar programming languages. Computer-readable program instructions may be executed completely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of the computer-readable program instructions, and the electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present disclosure.

[0071] Various aspects of the present disclosure are described herein with reference to the flowchart and / or block diagram of the method, device (system), and computer program product according to the embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer-readable program instructions.

[0072] These computer-readable program instructions can be provided to a processor in a voice interaction device, a general-purpose computer, a special-purpose computer, or a processing unit of other programmable data processing devices, thereby producing a machine, so that when these instructions are executed by a processing unit of a computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions enable the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0073] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0074] The flow chart and block diagram in the accompanying drawings show the possible architecture, function and operation of the equipment, method and computer program product according to multiple embodiments of the present disclosure. In this regard, each square box in the flow chart or block diagram can represent a part of a module, program segment or instruction, and a part of this module, program segment or instruction includes one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two continuous square boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or action, or can be implemented with a combination of special hardware and computer instructions.

[0075] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

[0076] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A light receiving component, characterized in that: include: Tube shell; An optical fiber adapter coupled to the tube shell so as to transmit the optical signal to the interior of the tube shell; The optical branching component is arranged inside the tube shell, and the optical branching component is an integrated structure, including: A light splitting unit, used for splitting the optical signal from the optical fiber adapter into multiple optical signals for output to the lens array unit; and A lens array portion, comprising a plurality of lenses, each of the plurality of lenses respectively corresponding to each optical signal in the plurality of optical signals, so as to transmit the corresponding optical signal to the corresponding photodetector, and the light splitting portion and the plurality of lenses of the lens array portion are naturally coupled, the lens array portion comprising a light incident surface of the lens array portion and a light emitting surface of the lens array portion, a plurality of lenses are formed on the light emitting surface of the lens array portion, the plurality of lenses are arranged in an array, and the light incident surface of the lens array portion is perpendicular to the optical axis of each lens of the plurality of lenses; and A photodetector array, comprising a plurality of photodetectors for detecting multi-path optical signals, wherein a light receiving surface of each of the plurality of photodetectors is perpendicular to an optical axis of a corresponding lens; The spectrometer comprises a light-entry surface and a light-exiting surface. The light-entry surface and the light-exiting surface are arranged opposite to each other. The light-entry surface reflects the light signal reflected by the light-exiting surface to the light-exiting surface, so that the light signal of the corresponding wavelength is outputted in the corresponding area of ​​the light-exiting surface. A V-shaped groove is formed between the spectrometer and the lens array part, so that a film layer is arranged on the surface of the light-exiting surface of the spectrometer.

2. The light receiving assembly according to claim 1, characterized in that: The spectrometer includes: The light-emitting surface of the light-splitting part is used for outputting multiple optical signals; The angle between the light incident surface of the lens array portion and the light emitting surface of the light splitting portion is an acute angle.

3. The light receiving assembly according to claim 1, characterized in that: Also includes: A displacement prism, used to transmit an optical signal from an optical fiber adapter to an optical branching component, the displacement prism comprising: The first surface is a surface of the displacement prism close to the optical fiber adapter, and the first surface includes: a light input portion, for allowing the optical signal from the optical fiber adapter to enter the displacement prism to be transmitted to the second surface; and a light reflecting portion, used to reflect the optical signal reflected by the second surface toward the optical branching component, so that the optical signal is transmitted to the optical branching component; and The second surface is used to reflect the light signal entering the displacement prism through the light incident portion of the first surface toward the light reflecting portion of the first surface; The first surface is connected to the second surface, and an angle between the first surface and the second surface is an acute angle.

4. The light receiving assembly according to claim 3, characterized in that: The displacement prism and the light splitting part are an integrated structure, or the displacement prism is attached to a side of the light incident surface of the light splitting part.

5. The light receiving assembly according to claim 1, characterized in that: Also includes: A pad is arranged inside the tube shell and is used to support the photodetector array and the transimpedance amplifier. The pad includes: a first surface, the first surface being perpendicular to an optical axis of the lens; and a second surface, the second surface being perpendicular to the first surface; and a transimpedance amplifier, the transimpedance amplifier being disposed on the second surface; wherein a photodetector array is disposed on the first surface; Each photodetector in the photodetector array is bonded to the transimpedance amplifier respectively.

6. The light receiving assembly according to claim 1, characterized in that: The plurality of lenses are evenly distributed, and the plurality of photodetectors are evenly distributed.

7. A method for assembling a light receiving assembly, characterized in that: The light receiving component is a light receiving component according to any one of claims 1 to 6, and the method comprises: coupling the fiber optic adapter to the housing; Mounting the photodetector array to a first predetermined position in the housing so that a plurality of photodetectors in the photodetector array face the fiber optic adapter; Disposing the optical branching component at a second predetermined position in the tube shell; Transmitting an optical signal into the tube shell by using an optical fiber adapter so that the optical signal is transmitted to the photodetector array via the optical branching component; obtaining response currents of the plurality of photodetectors at a control device; determining whether the response current meets a predetermined condition; and In response to determining that the response current does not meet the predetermined condition, the position of the optical branching component is adjusted until the response current meets the predetermined condition, so as to fix the optical branching component at the position where the response current meets the predetermined condition.

8. The method according to claim 7, characterized in that Determining whether the response current meets the predetermined condition includes: In response to determining that the response currents of the plurality of photodetectors are all greater than a predetermined current threshold, it is determined that the response currents meet a predetermined condition.

9. The method according to claim 7, characterized in that: In response to determining that the response current does not meet the predetermined condition, adjusting the position of the optical branching component until the response current meets the predetermined condition includes: In response to determining that the response currents of the plurality of photodetectors are not all greater than the predetermined current threshold, adjusting the position of the optical branching component so that the response currents of the plurality of photodetectors are all greater than the predetermined current threshold; and The position of the optical branching component is continuously adjusted until the response current of at least one of the plurality of photodetectors decays, so as to determine that the response current before decay meets a predetermined condition.

10. The method according to claim 7, characterized in that The step of installing the photodetector array to a first predetermined position in the tube housing comprises: fixing the spacer at a third predetermined position in the tube shell; and The photodetector array is adhered to the first surface of the spacer.

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