CN215769133U - Array lens capable of realizing optical transmission of optical communication module - Google Patents
Array lens capable of realizing optical transmission of optical communication module Download PDFInfo
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- CN215769133U CN215769133U CN202122349717.5U CN202122349717U CN215769133U CN 215769133 U CN215769133 U CN 215769133U CN 202122349717 U CN202122349717 U CN 202122349717U CN 215769133 U CN215769133 U CN 215769133U
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Abstract
The utility model provides an array lens capable of realizing optical transmission of an optical communication module, which comprises an optical fiber array component, a lens array, a PCB and at least one photoelectric chip array with a plurality of photoelectric conversion areas, wherein the photoelectric chip array is arranged on the PCB, and the optical fiber array component comprises a plurality of paths of parallel optical fibers; the lens array comprises a lens body, a second lens array surface which is embedded in the lens body in the vertical direction and is opposite to the plurality of photoelectric conversion regions, a first lens array surface which is embedded in the lens body in the horizontal direction and is corresponding to the plurality of paths of parallel optical fibers, and a reflecting surface which is embedded in the lens body and enables a light path to turn 90 degrees between the second lens array surface and the first lens array surface. Compared with the prior art, the array lens has the advantages that the ferrule optical fiber is directly inserted into the shell to correspond to the second lens, a connector is omitted, and early-stage cost and later-stage complex processes can be reduced; and can satisfy a plurality of lock pin fiber array arrangements and carry out high accuracy alignment optical coupling simultaneously.
Description
Technical Field
The utility model relates to the field of optical communication, in particular to an array lens capable of realizing optical transmission of an optical communication module.
Background
As shown in fig. 1 to 3, the conventional array lens includes a lens array 1, a connector 2, a ferrule fiber 3, and at least one optical-to-electrical chip array 5 having a plurality of optical-to-electrical conversion regions, where the optical-to-electrical chip array is disposed on a PCB4, a first lens 11 disposed above the optical-to-electrical chip array, a second lens 12 disposed on one side of the ferrule fiber 3, and a reflection surface 13 for turning a light path between the first lens 11 and the second lens 12 by 90 degrees are disposed in the lens array 1, the optical-to-electrical chip array is a transmitting end laser/receiving end sensor, the ferrule fiber 3 completes a fiber threading process from the connector 2, and the connector can perform a high-precision alignment coupling effect between the ferrule fiber 3 and the second lens 12; the light is collimated by a laser at the transmitting end in the photoelectric chip array 5 through a first lens 11, then passes through a total reflection surface of a reflection surface 13 to form a 90-degree folded angle, and is focused to the ferrule optical fiber 3 along a second lens 12, so that the coupling of the optical signal transmitting end is completed; otherwise, the optical path completes the coupling of the optical signal receiving end.
However, the connector 2 is developed to insert the core fiber 3 into the array lens and to pass the fiber through the connector, which is expensive; and when the inserting core optical fiber 3 is penetrated on the connector, the optical fiber is cut or ground by laser, the working procedures are complicated, and the production cost is high.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides an array lens capable of realizing optical transmission of an optical communication module, which eliminates a connector and can reduce the development cost in the early stage and the complicated process in the later stage; and can satisfy a plurality of lock pin fiber array and carry out high accuracy alignment optical coupling simultaneously.
The technical scheme adopted by the utility model is as follows:
an array lens capable of realizing optical transmission of an optical communication module is characterized by comprising an optical fiber array component, a lens array, a PCB and at least one photoelectric chip array with a plurality of photoelectric conversion areas, wherein the photoelectric chip array is arranged on the PCB, and the optical fiber array component comprises a plurality of paths of parallel optical fibers; the lens array comprises a lens body, a second lens array surface which is embedded in the lens body in the vertical direction and is opposite to the plurality of photoelectric conversion areas, a first lens array surface which is embedded in the lens body in the horizontal direction and is corresponding to the plurality of paths of parallel optical fibers, and a reflecting surface which is embedded in the lens body and enables a light path to turn 90 degrees between the second lens array surface and the first lens array surface, the plurality of photoelectric conversion areas are coupled and correspond to the second lens array surface, and the plurality of paths of parallel optical fibers are coupled and correspond to the first lens array surface; the lens comprises a lens body and is characterized in that a platform is further arranged on one side of the lens body, mounting grooves for mounting multiple paths of parallel optical fibers are formed in the platform, a plurality of hole sites for inserting the end portions of the optical fibers are further formed in the lens body, and the mounting grooves correspond to the hole sites.
Preferably, the optical fiber comprises a fiber core and a jacket layer sleeved on the fiber core, wherein the diameter of the fiber core is 0.05mm, and the diameter of the jacket layer is 0.5 mm.
Preferably, each aperture site is provided with a fibre datum surface adjacent the open end of the first lens array face.
More preferably, the photo-electric chip array is a VESEL chip array and/or a PD chip array, and the photoelectric conversion area is a light-emitting area of the VESEL chip and/or a light-sensing area of the PD chip.
Compared with the prior art, the utility model has the beneficial effects that: the utility model provides an array lens capable of realizing optical transmission of an optical communication module, wherein a plurality of paths of parallel optical fibers are directly inserted into a lens body to correspond to a first lens array surface, a connector is omitted, and the early development cost and the later complicated process can be reduced; and the requirement that the multiple paths of parallel optical fibers are arranged side by side and high-precision alignment optical coupling is carried out at the same time can be met.
Drawings
Fig. 1 is an internal structure view of a conventional array lens;
FIG. 2 is a top view of a conventional array lens;
FIG. 3 is a schematic diagram of a conventional core-inserted fiber in an array lens;
fig. 4 is an internal structural view of an array lens capable of realizing optical transmission of an optical communication module according to the present invention;
fig. 5 is a top view of an array lens for realizing optical transmission of an optical communication module according to the present invention;
fig. 6 is a schematic diagram of optical signal emission of an array lens capable of implementing optical transmission of an optical communication module according to the present invention;
fig. 7 is a schematic diagram illustrating optical signal reception of an array lens capable of implementing optical transmission of an optical communication module according to the present invention;
fig. 8 is a schematic diagram of a core fiber inserted in an array lens for implementing optical transmission of an optical communication module according to the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 4 to 8 are preferred embodiments of an array lens capable of realizing optical transmission of an optical communication module according to the present invention. As shown in fig. 4 to 8, the array lens capable of realizing optical transmission of an optical communication module includes an optical fiber array assembly 10, a lens array 20, a PCB30, and at least one optical-to-electrical chip array 40 having a plurality of optical-to-electrical conversion regions 41, where the optical-to-electrical chip array 40 is disposed on a PCB30, and the optical fiber array assembly 10 includes a plurality of parallel optical fibers 11; the lens array 20 comprises a lens body 21, a second lens array surface 22 which is embedded in the lens body in the vertical direction and corresponds to a plurality of photoelectric conversion regions, a first lens array surface 23 which is embedded in the lens body in the horizontal direction and corresponds to a plurality of paths of parallel optical fibers, and a reflecting surface 24 which is embedded in the lens body and enables a light path to be turned 90 degrees between the second lens array surface and the first lens array surface, wherein the plurality of photoelectric conversion regions 41 correspond to the second lens array surface 22 in a coupling manner, and the plurality of paths of parallel optical fibers 11 correspond to the first lens array surface 23 in a coupling manner; a platform 25 is further arranged on one side of the lens body 21, mounting grooves 251 for mounting multiple paths of parallel optical fibers are formed in the platform, a plurality of hole sites 211 for inserting the end portions of the optical fibers are further formed in the lens body 21, the mounting grooves 251 correspond to the hole sites 211, the optical fibers 11 are directly inserted into the lens body 21 and correspond to the first lens array surface 23, connectors are omitted, and early development cost and later-stage complex processes can be reduced; and the requirement that the multiple paths of parallel optical fibers are arranged side by side and high-precision alignment optical coupling is carried out at the same time can be met.
As shown in fig. 8, each optical fiber in the multi-path parallel optical fiber 11 includes a fiber core 111 and a jacket layer 112 sleeved on the fiber core, the diameter of the fiber core 111 is 0.05mm, the diameter of the jacket layer 112 is 0.5mm, when one end of the optical fiber is inserted into the lens body 21, the optical fiber is cut by laser to expose the fiber core 111 at one end, and then the fiber core is inserted into the hole 211. It is worth noting that the multiple parallel optical fibers 11 can form an optical fiber strip line, which is an OM 1-4 series optical fiber strip line, and can meet the requirement that the multi-channel array simultaneously performs high-precision alignment optical coupling.
An optical fiber reference surface 2111 is provided at an opening end of each hole site 211 adjacent to the first lens array surface 23, and when the optical fiber 11 is inserted into the hole site 211 and the end surface of the optical fiber is at the optical fiber reference surface 2111, it indicates that the optical fiber 11 is installed in place and the optical fiber is coupled to the first lens array surface 23.
In a preferred embodiment, the photo-electric chip array is a VESEL chip array and/or a PD chip array, and the photoelectric conversion area is a light-emitting area of the VESEL chip and/or a light-sensing area of the PD chip.
As shown in fig. 6, the optical signal transmission process: the light is collimated by the second lens array surface 22 from the light emitting area of the VESEL chip at the emitting end, is totally reflected by the reflecting surface 24 to form a 90-degree folded angle, and is focused to the multi-path parallel optical fibers 11 along the first lens array surface 23, so that the coupling of the optical signal emitting end is completed. As shown in fig. 7, the optical signal receiving and transmitting process: the optical signal transmitted from the multi-path parallel optical fiber 11 is diverged by the first lens array surface 23, then totally reflected by the reflecting surface 24 to form a 90-degree bevel angle, enters the second lens array surface 22, and finally is received by the photosensitive area of the PD chip at the receiving end, and the optical path completes the coupling of the optical signal receiving end.
In summary, the technical solution of the present invention can fully and effectively achieve the above objects of the present invention, and the structure and functional principle of the present invention have been fully verified in the embodiments, so as to achieve the expected efficacy and purpose, and without departing from the principle and essence of the present invention, various changes or modifications can be made to the embodiments of the present invention. Accordingly, this invention includes all modifications encompassed within the scope of the claims appended hereto, and any equivalents thereof which fall within the scope of the claims appended hereto.
Claims (4)
1. An array lens capable of realizing optical transmission of an optical communication module is characterized by comprising an optical fiber array component, a lens array, a PCB and at least one photoelectric chip array with a plurality of photoelectric conversion areas, wherein the photoelectric chip array is arranged on the PCB, and the optical fiber array component comprises a plurality of paths of parallel optical fibers; the lens array comprises a lens body, a second lens array surface which is embedded in the lens body in the vertical direction and is opposite to the plurality of photoelectric conversion areas, a first lens array surface which is embedded in the lens body in the horizontal direction and is corresponding to the plurality of paths of parallel optical fibers, and a reflecting surface which is embedded in the lens body and enables a light path to turn 90 degrees between the second lens array surface and the first lens array surface, the plurality of photoelectric conversion areas are coupled and correspond to the second lens array surface, and the plurality of paths of parallel optical fibers are coupled and correspond to the first lens array surface; the lens comprises a lens body and is characterized in that a platform is further arranged on one side of the lens body, mounting grooves for mounting multiple paths of parallel optical fibers are formed in the platform, a plurality of hole sites for inserting the end portions of the optical fibers are further formed in the lens body, and the mounting grooves correspond to the hole sites.
2. The array lens for realizing optical transmission of an optical communication module according to claim 1, wherein: the optical fiber comprises a fiber core and a sleeve layer sleeved on the fiber core, wherein the diameter of the fiber core is 0.05mm, and the diameter of the sleeve layer is 0.5 mm.
3. The array lens for realizing optical transmission of an optical communication module according to claim 1, wherein: and an optical fiber reference surface is arranged at the opening end of each hole position close to the first lens array surface.
4. The array lens for realizing optical transmission of an optical communication module according to claim 1, wherein: the photoelectric chip array is a VESEL chip array and/or a PD chip array, and the photoelectric conversion area is a light emitting area of the VESEL chip and/or a light sensing area of the PD chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122349717.5U CN215769133U (en) | 2021-09-27 | 2021-09-27 | Array lens capable of realizing optical transmission of optical communication module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122349717.5U CN215769133U (en) | 2021-09-27 | 2021-09-27 | Array lens capable of realizing optical transmission of optical communication module |
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| Publication Number | Publication Date |
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| CN215769133U true CN215769133U (en) | 2022-02-08 |
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| CN202122349717.5U Active CN215769133U (en) | 2021-09-27 | 2021-09-27 | Array lens capable of realizing optical transmission of optical communication module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116755199A (en) * | 2023-06-19 | 2023-09-15 | 长芯盛（武汉）科技有限公司 | Optical assembly, photoelectric module, installation method, plug and active cable |
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2021
- 2021-09-27 CN CN202122349717.5U patent/CN215769133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116755199A (en) * | 2023-06-19 | 2023-09-15 | 长芯盛（武汉）科技有限公司 | Optical assembly, photoelectric module, installation method, plug and active cable |
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