CN117215009A

CN117215009A - Light receiving assembly and method for packaging light receiving assembly

Info

Publication number: CN117215009A
Application number: CN202311210851.4A
Authority: CN
Inventors: 张亮; 侯炳泽; 廖传武; 宋小飞; 冯畅
Original assignee: Dalian Youxinguang Technology Co ltd
Current assignee: Dalian Youxinguang Technology Co ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2023-12-12

Abstract

Embodiments of the present disclosure relate to a light receiving assembly and a method for packaging the light receiving assembly. Wherein the light receiving assembly comprises: a tube shell; an optical fiber adapter coupled to the envelope for transmitting an optical signal to an interior of the envelope; the optical branching component is arranged in the shell, and the optical branching component is of an integrated structure and comprises: a light splitting section for splitting an optical signal from the optical fiber adapter into a plurality of optical signals to output to the lens array section; and a lens array section including a plurality of lenses, each of the plurality of lenses corresponding to each of the plurality of optical signals, respectively, so as to transmit the corresponding optical signal to the corresponding photodetector; and a photodetector array including a plurality of photodetectors for detecting the multiplexed optical signals, a light receiving surface of each of the plurality of photodetectors being perpendicular to an optical axis of a corresponding lens. The lens coupling difficulty can be remarkably reduced.

Description

Light receiving assembly and method for packaging light receiving assembly

Technical Field

Embodiments of the present disclosure relate generally to the field of light transmission, and more particularly, to a light receiving assembly and a method for packaging the light receiving assembly.

Background

In a conventional optical receiving assembly, an optical signal is generally split into multiple optical signals by using a splitter, and each optical signal after splitting reaches a corresponding photodetector through a corresponding lens and a 45 ° prism. Wherein the lens needs to be assembled with the 45 ° prism first, and then the lens is coupled with the splitter. On the one hand, the lens and the 45-degree prism are required to be adhered together through glue, the requirement on the adhering process is high, the adhering difficulty is high, and once the adhering process is not in accordance with the requirement, the lens and the 45-degree prism are scrapped. On the other hand, the lenses are arranged separately, each lens is required to be coupled with the branching unit, the coupling difficulty is high, the coupling efficiency is low, and the response current of the photoelectric detector is influenced.

In summary, the conventional light receiving assembly has the defects of high lens coupling difficulty, high difficulty in adhering the lens to the 45-degree prism, and the like.

Disclosure of Invention

In view of the foregoing, the present disclosure provides a light receiving assembly and a method for packaging the light receiving assembly, which can significantly reduce the difficulty of lens coupling.

According to a first aspect of the present disclosure, there is provided a light receiving assembly. The light receiving assembly includes: a tube shell; an optical fiber adapter coupled to the envelope for transmitting an optical signal to an interior of the envelope; the optical branching component is arranged in the shell, and the optical branching component is of an integrated structure and comprises: a light splitting section for splitting an optical signal from the optical fiber adapter into a plurality of optical signals to output to the lens array section; and a lens array section including a plurality of lenses, each of the plurality of lenses corresponding to each of the plurality of optical signals, respectively, so as to transmit the corresponding optical signal to the corresponding photodetector; and a photodetector array including a plurality of photodetectors for detecting the multiplexed optical signals, a light receiving surface of each of the plurality of photodetectors being perpendicular to an optical axis of a corresponding lens.

In some embodiments, the beam splitting section includes: the light-emitting surface of the light-splitting part is used for outputting multiple paths of optical signals; the lens array section includes: the lens array part light incident surface is perpendicular to the optical axis of each lens in the plurality of lenses, and an included angle between the lens array part light incident surface and the light emergent surface of the light splitting part is an acute angle.

In some embodiments, the light receiving assembly further comprises: a displacement prism for transmitting an optical signal from the fiber optic adapter to the optical branching component, the displacement prism comprising: the first face, the first face is the face that is close to the optic fibre adapter of displacement prism, and the first face includes: the light inlet part is used for allowing the optical signal from the optical fiber adapter to enter the displacement prism so as to be transmitted to the second surface; and a light reflecting portion for reflecting the optical signal reflected by the second face toward the optical branching member so that the optical signal is transmitted to the optical branching member; and a second surface for reflecting the optical signal entering the displacement prism via the light-entering portion of the first surface toward the light-reflecting portion of the first surface; the first surface is connected with the second surface, and an included angle between the first surface and the second surface is an acute angle.

In some embodiments, the displacement prism and the light splitting part are integrated, or the displacement prism is attached to one side of the light incident surface of the light splitting part.

In some embodiments, the light receiving assembly further comprises: cushion sets up in the inside of tube shell for support photoelectric detector array and transimpedance amplifier, the cushion includes: a first surface perpendicular to an optical axis of the lens; and a second surface perpendicular to the first surface; and a transimpedance amplifier disposed on the second surface; the photoelectric detector array is arranged on the first surface; each photodetector in the photodetector array is separately bonded to a transimpedance amplifier.

In some embodiments, the plurality of lenses are uniformly distributed, and the plurality of photodetectors are uniformly distributed.

According to a second aspect of the present disclosure, a method for assembling a light receiving assembly is provided. Wherein the light receiving group is a light receiving assembly according to the first aspect of the present disclosure, the method comprising: coupling the fiber optic adapter to the cartridge; mounting the photodetector array to a first predetermined position in the housing such that the plurality of photodetectors in the photodetector array face the fiber optic adapter; disposing the optical branching component at a second predetermined position in the package; transmitting an optical signal into the package using the optical fiber adapter so that the optical signal is transmitted to the photodetector array via the optical branching component; acquiring response currents of the plurality of photodetectors at the 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.

In some embodiments, wherein determining whether the response current meets the predetermined condition comprises: in response to determining that the response currents of the plurality of photodetectors are each greater than a predetermined current threshold, it is determined that the response currents meet a predetermined condition.

In some embodiments, wherein responsive to determining that the response current does not meet the predetermined condition, adjusting the position of the optical branch component until the response current meets the predetermined condition comprises: responsive 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 branch component such that the response currents of the plurality of 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 plurality of photodetectors decays to determine that the response current before decay meets a predetermined condition.

In some embodiments, wherein mounting the photodetector array to the first predetermined position in the housing comprises: fixing the cushion block at a third preset position in the tube shell; and adhering the photoelectric detector array on the first surface of the cushion block.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.

Drawings

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

Fig. 1 shows a partial schematic configuration of a light receiving assembly of an embodiment of the present disclosure.

Fig. 2 shows a partial structural schematic diagram of a light receiving assembly of an embodiment of the present disclosure.

Fig. 3 shows a schematic structural view of an optical branching component and a displacement prism of an embodiment of the present disclosure.

Fig. 4 shows a schematic structural view of an optical branching component and a displacement prism along the Z-axis direction of an embodiment of the present disclosure.

Fig. 5 shows a schematic diagram of a system for implementing a method of packaging a light receiving assembly according to an embodiment of the present disclosure.

Fig. 6 shows a flowchart of a method for packaging a light receiving assembly according to an embodiment of the present disclosure.

Fig. 7 shows a flowchart of a method for determining whether a response current meets a predetermined condition according to an embodiment of the present disclosure.

Fig. 8 shows a flowchart of a method for adjusting the position of an optical branching component according to an embodiment of the present disclosure.

Fig. 9 schematically illustrates a block diagram of an electronic device suitable for use in implementing embodiments of the present disclosure.

Detailed Description

Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

The term "comprising" and variations thereof as used herein means open ended, i.e., "including but not limited to. The term "or" means "and/or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment. The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like, may refer to different or the same object. Other explicit and implicit definitions are also possible below.

As described above, in the conventional optical receiving assembly, the optical signal is transmitted to the splitter through the optical fiber pins, the splitter splits the optical signal into a plurality of optical signals with specific wavelengths, the transmission direction of the optical signal is turned by 90 ° through a plurality of lenses and 45 ° prisms corresponding to the plurality of optical signals output from the splitter, and the optical signals corresponding to the optical paths are detected by a plurality of corresponding photodetectors. The proposal requires that the lens and the 45-degree prism are adhered together through glue, has higher requirement on the adhering process and high adhering difficulty, and can lead to the rejection of the lens and the 45-degree prism once the adhering process is not in accordance with the requirement. In addition, the lenses are arranged separately, each lens is required to be coupled with the branching unit, the coupling difficulty is high, the coupling efficiency is low, and the response current of the photoelectric detector is influenced.

To at least partially address one or more of the above problems, as well as other potential problems, example embodiments of the present disclosure propose a light receiving assembly solution. In the scheme of the disclosure, the optical branching component is an integrated structure and comprises an optical branching part and a corresponding lens array part, wherein the optical branching part is used for dividing an optical signal from the optical fiber adapter into multiple paths of optical signals to be output to the lens array part. Each of the plurality of lenses of the lens array portion corresponds to each of the plurality of optical signals, respectively, so as to transmit the corresponding optical signal to the corresponding photodetector. By means of the integral structure of the optical branching component, the optical branching part and the lenses of the lens array part are coupled naturally, the step of coupling the lenses with the optical branching part can be omitted, and the difficulty of lens coupling is reduced obviously.

The light receiving assembly of the embodiments of the present disclosure is described in detail below. Fig. 1 shows a partial schematic configuration of a light receiving assembly 100 of an embodiment of the present disclosure. Fig. 2 shows a partial structural schematic diagram of the light receiving assembly 100 of the embodiment of the present disclosure. Fig. 3 shows a schematic structural view of the optical branching component 106 and the displacement prism 122 of the embodiment of the present disclosure. Fig. 4 shows a schematic structural view of the optical branching component 106 and the displacement prism 122 along the Z-axis direction according to the embodiment of the present disclosure. For ease of illustration, the X, Y, and Z axes are shown. The light receiving assembly 100 includes: a package 104, a fiber optic adapter 102, an optical splitter 106, and a photodetector array 114. Wherein the fiber optic adapter 102 is coupled to the enclosure 104 for transmitting optical signals to the interior of the enclosure 104. The optical branching member 106 is provided inside the package 104. The optical branching device 106 is of unitary construction. The optical branching member 106 includes a branching section 108 and a lens array section 110. The optical splitter 108 splits an optical signal from the optical fiber adapter 102 into a plurality of optical signals and outputs the optical signals to the lens array 110. The lens array portion 110 includes a plurality of lenses 112. Each lens 112 of the plurality of lenses 112 corresponds to each of the plurality of optical signals, respectively, to transmit the corresponding optical signal to a corresponding photodetector 116. Photodetector array 114 includes a plurality of photodetectors 116 for detecting multiplexed optical signals, with the light receiving face of each photodetector 116 of the plurality of photodetectors 116 being perpendicular to the optical axis of a corresponding lens 112. In some embodiments, the X-axis corresponds to, for example, a direction in which the length of the cartridge 104 extends, the Y-axis corresponds to, for example, a direction in which the width of the cartridge 104 extends, and the Z-axis corresponds to, for example, a direction in which the height of the cartridge 104 extends.

In some embodiments, the light receiving assembly 100 further includes, for example, a displacement prism 122, a spacer 128, and a transimpedance amplifier 130.

In the above-mentioned scheme, by virtue of the integral structure of the optical branching component 106, the coupling between the optical branching component 108 and the plurality of lenses 112 of the lens array 110 is naturally realized, so that the step of coupling the lenses 112 with the optical branching component 108 can be omitted, the difficulty of lens coupling is remarkably reduced, the optical coupling efficiency is favorably ensured, and the response current of the photodetector meets the preset requirement. Further, by making the light receiving surface of each photodetector 116 perpendicular to the optical axis of the corresponding lens 112, the 45 ° prism in the conventional light receiving assembly can be omitted, so that the light path can be simplified, the step of adhering the lens to the 45 ° prism can be omitted, and the process difficulty can be reduced.

The spectroscopic unit 108 includes, for example, a spectroscopic unit light-in surface 121 and a spectroscopic unit light-out surface 118. The light-splitting-section light-incident surface 121 is used for allowing the optical signal from the optical fiber adapter 102 to enter the light splitting section 108. The light-splitting part light-emitting surface 118 is used for outputting multiple optical signals. It should be understood that the light-splitting-portion light-incident surface 121 is disposed opposite to the light-splitting-portion light-emitting surface 118. The light-splitting-section light-emitting surface 118 is provided with a corresponding film layer at least in a predetermined range of a region corresponding to the output of the multiplexed optical signals, so as to output optical signals in a corresponding wavelength range, and to emit optical signals outside the wavelength range to the light-splitting-section light-entering surface 121. The light-splitting-section light-incident surface 121 reflects the optical signal reflected by the light-splitting-section light-emitting surface 118 to the light-splitting-section light-emitting surface 118 so that the optical signal of the corresponding wavelength is output at the corresponding region of the light-splitting-section light-emitting surface 118. In some embodiments, the light splitting portion 108 has a parallelogram shape, and an angle between the incident light signal L1 and the light emitting surface 118 of the light splitting portion is an angle θ1. By different configurations of the angle θ1 between the incident light signal L1 and the light-emitting surface 118 of the light-splitting unit, the distance between the multiple light signals output by the light-splitting unit 108 can be adjusted.

The lens array portion 110 includes, for example, a lens array portion light-in surface 120 and a lens array portion light-out surface 111. It should be understood that the lens array portion light incident surface 120 is disposed opposite to the lens array portion light emergent surface 111. The lens array portion light incident surface 120 is used for inputting the multiple optical signals output by the beam splitting portion 108 to the lens array portion 110. The lens array portion light incident surface 120 is perpendicular to the optical axis of each lens 112 of the plurality of lenses, so that the efficiency of the multi-path optical signal incident on the lens array portion 110 is higher. The angle θ2 between the lens array light incident surface 120 and the light exiting surface 118 of the light splitting unit 108 is an acute angle. That is, a V-shaped groove is formed between the spectroscopic unit 108 and the lens array unit 110, so that a film layer is provided on the surface of the spectroscopic unit light-emitting surface 118 of the spectroscopic unit 108. The lens array portion light incident surface 120 is formed with a plurality of lenses 112, and the plurality of lenses 112 are arranged in an array. In some embodiments, the plurality of lenses 112 are each convex lenses. In some embodiments, the plurality of 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 uniformly distributing the plurality of lenses 112, it is convenient to match the plurality of optical signals output from the beam splitter 108, and to provide convenience for the arrangement of the plurality of photodetectors 116.

In some embodiments, the light receiving assembly 100 further includes a displacement prism 122. The displacement prism 122 is located between the optical fiber adapter 102 and the light incident surface (i.e., the light incident surface 121 of the light splitting unit) of the light splitting unit 108, and is used for transmitting the optical signal from the optical fiber adapter 102 to the optical branching component 106. The displacement prism 122 includes a first face 123 and a second face 124. Wherein the first face 123 is the face of the displacement prism 122 that is adjacent to the fiber optic adapter 102. The first face 123 includes: the light incident portion 125 and the light reflecting portion 126. The light input portion 125 is used for inputting the optical signal from the optical fiber adapter 102 into the displacement prism 122 for transmission to the second face 124. The light reflecting portion 126 is configured 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 member (including, but not limited to, a film layer) for reflecting the light signal. The second surface 124 is used for reflecting the optical signal entering the displacement prism 122 via the light-entering portion 125 of the first surface 123 toward the light-reflecting portion 126 of the first surface 123. For example, the second face 124 is provided with a reflective member (including but not limited to a film layer) for reflecting the optical signal. The first surface 123 is disposed in contact with the second surface 124, and an included angle θ3 between the first surface 123 and the second surface 124 is an acute angle.

In the above-mentioned scheme, the displacement prism 122 can implement optical signal displacement, so that the optical fiber adapter 102 does not need to be aligned with the light incident path (for example, the light path corresponding to the optical signal L1) of the optical branching component 106, which provides flexibility for setting the relative position between the optical fiber adapter 102 and the optical branching component 106, and provides convenience for reasonably utilizing the internal space of the package 104. Further, by arranging the first surface 123 and the second surface 124 of the displacement prism 122 in contact, the volume of the displacement prism 122 can be reduced, and the internal space of the package 104 can be saved. In addition, by providing the first surface 123 with the light incident portion 125 and the light reflecting portion 126, the light signal is supplied to the displacement prism 122, and the light 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, and the internal space of the package 104 can be saved.

In some embodiments, the displacement prism 122 is attached to the light incident surface side of the beam splitter 108. In this way, the position where the displacement prism 122 is attached to the spectroscopic unit 108 can be flexibly set according to actual needs.

In some embodiments, the displacement prism 122 is integral with the beam splitting section 108. In this way, no other medium is present between the displacement prism 122 and the beam splitter 108, and the efficiency of light transmission between the displacement prism 122 and the beam splitter 108 can be improved.

In some embodiments, the light receiving assembly 100 further includes a first spacer 128 and a transimpedance amplifier 130. A first spacer 128 is disposed inside the housing 104 for supporting the photodetector array 114 and the transimpedance amplifier 130. The first block 128 includes: a first surface and a second surface. The first surface is, for example, a surface facing the plurality of lenses 112, the first surface being perpendicular to the optical axis of the lenses 112. Photodetector array 114 is disposed on the first surface, facing toward the plurality of lenses 112. It should be appreciated that the first spacer 128 has a predetermined height along the Z-axis direction, and that the plurality of photodetectors 116 of the photodetector array 114 are located at a height on the first surface that 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 photodetector array 114 is individually bonded to a transimpedance amplifier 130.

In the above-mentioned scheme, by means of the first surface of the first cushion block 128, the light receiving surface of each of the plurality of photodetectors 116 may be perpendicular to the optical axis of the corresponding lens 112, so that the light receiving surface of each of the plurality of photodetectors 116 directly receives the light signal from the corresponding lens 112, without setting, for example, a 45 ° prism, which may simplify the light path, and omit the step of adhering the lens to the 45 ° prism, thereby reducing the process difficulty.

In some embodiments, the plurality of lenses 112 are uniformly distributed, and the plurality of photodetectors 116 are uniformly distributed. In this way, coupling the plurality of lenses 112 with the plurality of photodetectors 116 may be facilitated.

In some embodiments, the light receiving assembly 100 further includes a second block 129 and a third block 127. The second cushion block 129 is attached to the inner wall of the tube 104 and is used for supporting the third cushion block 127 and the first cushion block 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 fiber optic adapter 102 is laser welded to the housing 104.

A method for packaging a light receiving assembly according to an embodiment of the present disclosure, which may be used for packaging the light receiving assembly 100, for example, is described below with reference to fig. 5 to 8. Fig. 5 shows a schematic diagram of a system 500 for implementing a method of packaging a light receiving assembly in accordance with an embodiment of the present disclosure. The system 500 includes: control device 502, six axis displacement platform 504. Fig. 6 illustrates a flow chart of a method 600 for packaging a light receiving component in accordance with an embodiment of the present disclosure. Method 600 may be implemented by system 500 and control device 502 may include, for example, electronic device 900 shown in fig. 9 to generate a control signal. It should be understood that method 600 may also include additional steps not shown and/or that the illustrated steps may be omitted, the scope of the disclosure being not limited in this respect.

At step 602, a fiber optic adapter is coupled to a package. For example, the fiber optic adapter 102 and the tube housing 104 are laser welded together.

At step 604, the photodetector array is mounted to a first predetermined position in the package such that a plurality of photodetectors in the photodetector array are oriented toward the fiber optic adapter. In some embodiments, mounting the photodetector array to a first predetermined location in the housing includes, for example: fixing the cushion block at a third preset position in the tube shell; and adhering the photoelectric detector array on the first surface of the cushion block. In some embodiments, the second spacer 129 is affixed to the inner wall of the tube housing 104, the third spacer 127 is affixed to the second spacer 129, the first spacer 128 is affixed to the third spacer 127, and the photodetector array 114 is affixed to a first predetermined location on the first surface of the first spacer 128.

At step 606, the optical splitting component is disposed at a second predetermined location in the package. For example, the optical branching component 106 is disposed at a second predetermined position on the third pad 127 such that the plurality of lenses 112 face the photodetector array 114 and the branching portion light entrance surface 121 faces the optical fiber adapter 102. It should be appreciated that the second predetermined position is the initial position where the optical splitter 106 is disposed in the enclosure 104, generally conforming to the target position of the optical splitter 106, and typically requiring calibration.

At step 608, an optical signal is transmitted into the package using the fiber optic adapter such that the optical signal is transmitted to the photodetector array via the optical splitting component.

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

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

At step 614, if it is determined that the response current does not meet the predetermined condition, the control device controls the six axis displacement stage to adjust the position of the optical branching component 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.

At step 616, the optical branching component is fixed in a position where the response current meets a predetermined condition.

For the traditional light receiving assembly, at least two six-axis displacement platforms are needed to respectively adjust the splitter and the lens, so that the control is complex, and the coupling difficulty is high. In the scheme, the optical branching component can be integrally adjusted by adopting the integrated structure of the optical branching component, so that the coupling of the optical branching component and the photoelectric detector array can be completed, the operation is simple, and the coupling efficiency is high.

Fig. 7 illustrates a flowchart of a method 700 for determining whether a response current meets a predetermined condition in an embodiment of the present disclosure. Method 700 may be implemented by system 500. It should be understood that method 700 may also include additional steps not shown and/or that the illustrated steps may be omitted, the scope of the present disclosure being not limited in this respect.

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

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

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.

Control device 502 controls six-axis displacement platform 504 to adjust the position of optical branching component 106 and obtain the response currents of the plurality of photodetectors 116 in real time. If the response currents of the plurality of photodetectors 116 are not all greater than the predetermined current threshold, control device 502 determines that the response currents do not meet the predetermined condition, and control device 502 controls six-axis displacement stage 504 to adjust the position of optical branching component 106. If the response currents of the plurality of photodetectors 116 are each greater than the predetermined current threshold, control device 502 determines that the response currents meet the predetermined condition, and control device 502 controls six-axis displacement stage 504 to stop adjusting the position of optical branching component 106 so as to fix optical branching component 106 at that position. Wherein when the response currents of the plurality of photodetectors 116 are all greater than the predetermined current threshold, it indicates that the optical branching component 106 is located at a position that meets the installation requirement.

Fig. 8 illustrates a flow chart of a method 800 for adjusting the position of an optical splitting component according to an embodiment of the present disclosure. Method 800 may be implemented by system 500. It should be understood that method 800 may also include additional steps not shown and/or that the illustrated steps may be omitted, the scope of the present disclosure being not limited in this respect.

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

At step 804, 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 controls the six-axis displacement stage to adjust the position of the optical branching component such that the response currents of the plurality of photodetectors are all greater than the predetermined current threshold.

At step 806, the control device controls the six-axis displacement stage to continue adjusting the position of the optical branching component until attenuation occurs in the response current of at least one of the plurality of photodetectors, so as to determine that the response current before attenuation meets a predetermined condition.

When the response currents of the plurality of photodetectors 116 are each greater than the predetermined current threshold, it is indicated that the optical branching component 106 is located at a position that meets basic installation requirements. To further increase the coupling efficiency, control device 502 controls six-axis displacement platform 504 to continue to adjust the position of optical splitter 106 and to continue to acquire the response currents of the plurality of photodetectors 116 in real time. If the response current of any one of the photodetectors 116 does not decay in the response current of the plurality of photodetectors 116 as compared to the position before the adjustment, this means that the new position is not degraded as compared to the position before the adjustment, and the new position may be an alternative position to the target position of the optical branching member 106. The control device 502 records the position and records the response currents of the corresponding plurality of photodetectors 116, and then the control device 502 controls the six-axis displacement platform 504 to continuously adjust the position of the optical branching component 106 and continuously acquire the response currents of the plurality of photodetectors 116 in real time until the response current of at least one photodetector 116 of the plurality of photodetectors 116 is attenuated, at which time the control device 502 determines that the position where attenuation occurs has low coupling efficiency compared to the previous position. The control device 502 then determines the pre-attenuation position (i.e., the previous position) as the optimized position of the optical branching component 106 in order to fix the optical branching component 106 in this optimized position.

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

The mounting manner of other components of the light receiving assembly according to the embodiments of the present disclosure is not described here.

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

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

It is further noted that the present disclosure may be methods, apparatus, systems, and/or computer program products. The computer program product may include a computer readable storage medium having computer readable program instructions embodied thereon for performing aspects of the present disclosure.

The computer readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: portable computer disks, hard disks, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (CD-ROM), digital Versatile Disks (DVD), memory sticks, floppy disks, mechanical coding devices, punch cards or in-groove structures such as punch cards or grooves having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media, as used herein, are not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., optical pulses through fiber optic cables), or electrical signals transmitted through wires.

The computer readable program instructions described herein may be downloaded from a computer readable storage medium to a respective computing/processing device or to an external computer or external storage device over a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers and/or edge servers. The network interface card or network interface in each computing/processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium in the respective computing/processing device.

Computer program instructions for performing the operations of the present disclosure can be assembly instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, c++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions may be executed entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present disclosure are implemented by personalizing electronic circuitry, such as programmable logic circuitry, field Programmable Gate Arrays (FPGAs), or Programmable Logic Arrays (PLAs), with state information of computer readable program instructions, which can execute the computer readable program instructions.

Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer readable program instructions may be provided to a processor in a voice interaction device, a processing unit of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer readable program instructions may also be stored in a computer readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer readable medium having the instructions stored therein includes an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of devices, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

The foregoing is merely an alternative embodiment of the present disclosure, and is not intended to limit the present disclosure, and various modifications and variations may be made to the present disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. that fall within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. A light receiving assembly, comprising:

a tube shell;

an optical fiber adapter coupled to the envelope for transmitting an optical signal to an interior of the envelope;

the optical branching component is arranged in the shell, and the optical branching component is of an integrated structure and comprises:

a light splitting section for splitting an optical signal from the optical fiber adapter into a plurality of optical signals to output to the lens array section; and

a lens array section including a plurality of lenses, each of the plurality of lenses corresponding to each of the plurality of optical signals, respectively, so as to transmit the corresponding optical signal to a corresponding photodetector; and

the photoelectric detector array comprises a plurality of photoelectric detectors for detecting multipath optical signals, and the light receiving surface of each photoelectric detector is perpendicular to the optical axis of the corresponding lens.

2. The light receiving assembly according to claim 1, wherein the light splitting section includes:

the light-emitting surface of the light-splitting part is used for outputting multiple paths of optical signals;

the lens array section includes:

the lens array part light-in surface is perpendicular to the optical axis of each lens in the plurality of lenses, and an included angle between the lens array part light-in surface and the light-out surface of the light-splitting part is an acute angle.

3. The light receiving assembly as recited in claim 1, further comprising:

a displacement prism for transmitting an optical signal from an optical fiber adapter to an optical branching component, the displacement prism comprising:

the first face, the first face is the face that is close to the optic fibre adapter of displacement prism, and the first face includes:

the light inlet part is used for allowing the optical signal from the optical fiber adapter to enter the displacement prism so as to be transmitted to the second surface; and

a light reflecting portion for reflecting the optical signal reflected by the second face toward the optical branching member so that the optical signal is transmitted to the optical branching member; and

a second surface for reflecting the optical signal entering the displacement prism via the light-entering portion of the first surface toward the light-reflecting portion of the first surface;

the first surface is connected with the second surface, and an included angle between the first surface and the second surface is an acute angle.

4. A light receiving assembly according to claim 3, wherein the displacement prism and the light splitting section are integrally formed, or the displacement prism is attached to a light incident surface side of the light splitting section.

5. The light receiving assembly as recited in claim 1, further comprising:

cushion sets up in the inside of tube shell for support photoelectric detector array and transimpedance amplifier, the cushion includes:

a first surface perpendicular to an optical axis of the lens; and

a second surface perpendicular to the first surface; and

a transimpedance amplifier disposed on the second surface;

wherein a photodetector array is disposed on the first surface;

each photodetector in the photodetector array is bonded to a respective one of the transimpedance amplifiers.

6. The light receiving assembly of claim 1, wherein the plurality of lenses are uniformly distributed and the plurality of photodetectors are uniformly distributed.

7. A method for assembling a light receiving assembly, wherein the light receiving group is a light receiving assembly according to any one of claims 1 to 6, the method comprising:

coupling the fiber optic adapter to the cartridge;

mounting the photodetector array to a first predetermined position in the housing such that the plurality of photodetectors in the photodetector array face the fiber optic adapter;

disposing the optical branching component at a second predetermined position in the package;

transmitting an optical signal into the package using the optical fiber adapter so that the optical signal is transmitted to the photodetector array via the optical branching component;

acquiring response currents of the plurality of photodetectors at the 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 branch component until the response current meets the predetermined condition, so as to fix the optical branch component at a position where the response current meets the predetermined condition.

8. The method of claim 7, wherein determining whether the response current meets a predetermined condition comprises:

in response to determining that the response currents of the plurality of photodetectors are each greater than a predetermined current threshold, determining that the response currents meet a predetermined condition.

9. The method of claim 7, wherein responsive to determining that the response current does not meet the predetermined condition, adjusting the position of the optical branch component until the response current meets the predetermined condition comprises:

responsive 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 branch component such 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 photodetector of the plurality of photodetectors decays, so as to determine that the response current before the decay meets a predetermined condition.

10. The method of claim 7, wherein mounting the photodetector array to a first predetermined location in the housing comprises:

fixing the cushion block at a third preset position in the tube shell; and

the photodetector array is adhered to the first surface of the spacer.