CN214540148U - Multi-path parallel optical transmission module and system - Google Patents
Multi-path parallel optical transmission module and system Download PDFInfo
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- CN214540148U CN214540148U CN202120506007.6U CN202120506007U CN214540148U CN 214540148 U CN214540148 U CN 214540148U CN 202120506007 U CN202120506007 U CN 202120506007U CN 214540148 U CN214540148 U CN 214540148U
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Abstract
The utility model provides a parallel optical transmission module of multichannel is applied to optical communication technical field. The utility model provides a in the parallel optical transmission module of multichannel, because the first fiber array subassembly of adoption is the fiber array subassembly of 45 jiaos for having the coupling end terminal, has saved a plurality of lens arrays that need lay between laser instrument and the fiber array subassembly to on guaranteeing that the parallel optic fibre of multichannel can accurate transmission the basis, practiced thrift the cost, improved and realized high-speed signal transmission's in-process at adoption optic fibre, optical coupling efficiency between the multichannel optical device.
Description
Technical Field
The utility model relates to an optical communication technical field, in particular to parallel optical transmission module of multichannel and parallel optical transmission system of multichannel.
Background
An optical module is a device for transmitting signals by using optical fibers, and a fine optical fiber is packaged in a plastic sheath so that the optical module can be bent without breaking.
However, with the rapid development of the communication field, the conventional transmission technology has been difficult to meet the requirements of transmission capacity and speed, and in typical application fields such as data center, network connection, search engine, high performance computing, etc., in order to prevent the shortage of broadband resources, carriers and service providers plan and deploy a new generation of high-speed network protocol, and demand for corresponding optical high-speed transceiver modules to meet the requirements of high-density and high-speed data transmission is urgent. The multichannel parallel optical transmission is a Vertical Cavity Surface Emitting Laser (VCSEL) and parallel optical interconnection technology, each laser is aligned to one transmission optical fiber, and the transmission rate of each optical fiber is reduced on the premise of not reducing the transmission capacity of a system, so that a simple, cheap and reliable optical transmission mode is realized.
The common optical coupling mode of the multi-path parallel optical transceiver module is that an optical fiber array is directly aligned and coupled with a VCSEL laser array and a PD (light emitting diode) photoelectric detector array, but the coupling efficiency is not high often, and the transmission performance of the optical transceiver module is influenced; in the high-speed transmission module, the effective photosensitive surface of the PD photoelectric detector is small, so that the optical coupling efficiency from the optical fiber to the PD photoelectric detector is low, and the sensitivity of the optical signal receiving end module is reduced; if the traditional lens array is used, the price is high, and meanwhile due to the limitation of a processing technology, the curvature radius of the traditional lens array cannot be too small, the convergence capacity of light is not strong, and therefore the improvement of the optical coupling efficiency between the optical fiber and the VCSEL laser or the PD photoelectric detector is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a parallel optical transmission module of multichannel and the parallel optical transmission system of multichannel to improve the in-process that adopts optic fibre to realize high-speed signal transmission, the optical coupling efficiency between the multichannel optical device.
In order to solve the technical problem, the utility model provides a multichannel parallel optical transmission module, including the casing, locate wavelength division demultiplexer, first fiber array subassembly, second fiber array subassembly, fiber connector and the light reception chip subassembly in the casing, be equipped with first fiber array subassembly, fiber connector and second fiber array subassembly between wavelength division demultiplexer and the light reception chip subassembly in proper order; incident light is decomposed into at least two paths of split light through the wavelength division demultiplexer and is output, and each split light is coupled into each optical fiber of the first optical fiber array assembly and is incident on each light receiving chip of the light receiving chip assembly after being transmitted and output through each optical fiber of the optical fiber connector and the second optical fiber array assembly; the first optical fiber array component connected with the wavelength division demultiplexer comprises a first end close to the wavelength division demultiplexer and a second end close to the optical fiber connector; the second fiber array assembly includes a third end proximate the fiber optic connector and a fourth end proximate the light receiving chip assembly.
Optionally, the end face of the first optical fiber array component connected to the wavelength division demultiplexer, which is opposite to the wavelength division demultiplexer, is at a preset angle, where the angle is 45 °.
Optionally, each optical fiber array assembly includes a first positioning element, an optical fiber array, and a second positioning element; the first positioning piece is used for fixing the position of each optical fiber at the input end of the optical fiber array; the second positioning piece is used for fixing the position of each optical fiber at the output end of the optical fiber array.
Optionally, the first positioning element comprises a first groove element and a first cover plate; the first groove piece comprises a plurality of first positioning grooves which are respectively used for placing each optical fiber at the input end of the optical fiber array; the first cover plate covers the first positioning grooves, and the optical fibers at the input end are respectively fixed in the first positioning grooves.
Optionally, the second positioning element includes a second slot and a second cover plate; the second groove piece comprises a plurality of second positioning grooves which are respectively used for placing each optical fiber at the output end of the optical fiber array; the second cover plate covers the second positioning grooves, and the optical fibers at the output end are respectively fixed in the second positioning grooves.
Optionally, the first positioning groove and the second positioning groove are V-shaped grooves and/or semicircular grooves.
Optionally, the optical fiber module further includes a first lens group, the first lens group is disposed between the second positioning element and the light receiving chip assembly, and each split beam output by the optical fiber array assembly is coupled to each light receiving chip of the light receiving chip assembly through each lens of the first lens group.
Optionally, the optical fiber connector includes an upper computer control component, an optical power meter feedback component, an image acquisition feedback component, and an optical fiber coupling component.
Based on the parallel optical transmission module of multichannel as above, the utility model also provides a parallel optical transmission system of multichannel, it includes the parallel optical transmission module of multichannel as above.
The multiple parallel optical transmission system may further include: a hard-brushed circuit board and a laser; the hard brush circuit board, the laser, the wavelength division demultiplexer and the light receiving chip set are all directly assembled on the electrode of the hard brush circuit board; the optical fiber array components are sequentially fixed at one end of the hard brush circuit board and are used for transmitting incident light which is decomposed into at least two paths of beam splitting light by the wavelength division demultiplexer; the optical fiber connector is positioned between the adjacent optical fiber array components and is used for coupling the optical fibers between the adjacent optical fiber array components.
Optionally, the laser is at least one of a VCSEL laser or a PD photodetector.
Compared with the prior art, the utility model provides a technical scheme has one of following beneficial effect at least:
the utility model provides a parallel optical transmission module of multichannel and parallel optical transmission system of multichannel. The utility model provides an among the parallel optical transmission module of multichannel, because the optical fiber array subassembly that the first optical fiber array subassembly of adoption is 45 jiaos for having the coupling end terminal surface, a plurality of lens arrays that need lay between laser instrument and the optical fiber array subassembly have been saved to on guaranteeing the basis that the parallel optic fibre of multichannel can accurate transmission, practiced thrift the cost, improved and realized high-speed signal transmission's in-process at adoption optic fibre, optical coupling efficiency between the multichannel optical device.
Drawings
Fig. 1 is a schematic structural diagram of a multi-path parallel optical transmission system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a multi-path parallel optical transmission module according to an embodiment of the present invention.
Detailed Description
A heart valve prosthesis of the present invention will be described in further detail below. The present invention will now be described in more detail with reference to the accompanying drawings, in which preferred embodiments of the invention are shown, it being understood that those skilled in the art may modify the invention herein described while still achieving the beneficial results of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
In the interest of clarity, not all features of an actual implementation are described. In the following description, well-known functions are not described in detail, since they would obscure the invention in unnecessary detail. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.
As mentioned in the background art, at present, the optical coupling mode of a common multi-path parallel optical transceiver module is that an optical fiber array is directly aligned and coupled with a VCSEL laser array and a PD (light emitting diode) photodetector array, but the coupling efficiency is often not high, which affects the transmission performance of the optical transceiver module; in the high-speed transmission module, the effective photosensitive surface of the PD photoelectric detector is small, so that the optical coupling efficiency from the optical fiber to the PD photoelectric detector is low, and the sensitivity of the optical signal receiving end module is reduced; if the traditional lens array is used, the price is high, and meanwhile due to the limitation of a processing technology, the curvature radius of the traditional lens array cannot be too small, the convergence capacity of light is not strong, and therefore the improvement of the optical coupling efficiency between the optical fiber and the VCSEL laser or the PD photoelectric detector is limited.
Therefore, the utility model provides a parallel optical transmission module of multichannel and the parallel optical transmission system of multichannel to improve the in-process that adopts optic fibre to realize high-speed signal transmission, the optical coupling efficiency between the multichannel optical device.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a multi-path parallel optical transmission system according to an embodiment of the present invention. As shown in fig. 1, the multiple parallel optical transmission system may include: a hard brush circuit board 10, a laser 20 and a multi-path parallel optical transmission module 30. Wherein, the multi-path parallel optical transmission module 30 includes: a housing (not shown), a wavelength division demultiplexer 31 disposed in the housing, a first optical fiber array module 32, a second optical fiber array module 33, an optical fiber connector 34, and a light receiving chip module 35.
Specifically, the hard brush circuit board 10, the laser 20, the wavelength division demultiplexer 31, and the light receiving chip assembly 35 are all directly assembled on the electrode of the hard brush circuit board 10; the optical fiber array components 32 and 33 are sequentially fixed at one end of the hard brush circuit board 10 and used for transmitting incident light which is decomposed into at least two paths of beam splitting light by the wavelength division demultiplexer 31; the optical fiber connector 34 is located between the adjacent optical fiber array components 32, 33 for coupling the optical fibers between the adjacent optical fiber array components 32, 33. The laser 20 may be at least one of a VCSEL laser or a PD photodetector.
For clarity of description, the structure of the multi-path parallel optical transmission module 30 is specifically described below by the following embodiments.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a multi-path parallel optical transmission module provided in an embodiment of the present invention. As shown in fig. 2, the multiple parallel optical transmission module 30 may include a housing (not shown), a wavelength division demultiplexer 31, a first optical fiber array assembly 32, a second optical fiber array assembly 33, an optical fiber connector 34, and an optical receiving chip assembly 35, which are disposed in the housing, wherein the first optical fiber array assembly 32, the optical fiber connector 34, and the second optical fiber array assembly 33 are sequentially disposed between the wavelength division demultiplexer 31 and the optical receiving chip assembly 35.
Incident light is decomposed into at least two paths of split light by the wavelength division demultiplexer 31 and output, and each split light is coupled into each optical fiber of the first optical fiber array assembly 32 and is transmitted and output by each optical fiber of the optical fiber connector 34 and the second optical fiber array assembly 33 and then is incident on each light receiving chip of the light receiving chip assembly 35; the first optical fiber array component 32 connected to the wavelength division demultiplexer 31 includes a first end a adjacent to the wavelength division demultiplexer 31 and a second end b adjacent to the optical fiber connector 34; the second fiber array module 33 further includes a third end c adjacent to the first fiber array module 32 and a fourth end d adjacent to the light receiving chip module 35.
Further, the first fiber array component 32 connected to the wavelength division demultiplexer 31 has a preset angle at its end face of the coupling end opposite to the wavelength division demultiplexer, where the angle is 45 °.
Optionally, each of the fiber array assemblies 32, 33 includes a first positioning member (not shown), a fiber array (not shown), and a second positioning member (not shown); the first positioning piece is used for fixing the position of each optical fiber at the input end of the optical fiber array; the second positioning piece is used for fixing the position of each optical fiber at the output end of the optical fiber array. The first positioning member comprises a first groove member (not shown) and a first cover plate (not shown); the first groove piece comprises a plurality of first positioning grooves which are respectively used for placing each optical fiber at the input end of the optical fiber array; the first cover plate covers the first positioning grooves, and the optical fibers at the input end are respectively fixed in the first positioning grooves. The second positioning part comprises a second groove part (not shown) and a second cover plate (not shown); the second groove piece comprises a plurality of second positioning grooves which are respectively used for placing each optical fiber at the output end of the optical fiber array; the second cover plate covers the second positioning grooves, and the optical fibers at the output end are respectively fixed in the second positioning grooves.
Optionally, the first positioning groove and the second positioning groove may be V-shaped grooves and/or semicircular grooves.
Further, the present invention provides a first lens set (not shown), the first lens set is disposed between the second positioning element and the light receiving chip assembly 35, and each split beam light output by the optical fiber array assembly 33 is coupled to each light receiving chip of the light receiving chip assembly 35 through each lens of the first lens set.
The optical fiber connector 34 includes a host computer control unit (not shown), an optical power meter feedback unit (not shown), an image acquisition feedback unit (not shown), and an optical fiber coupling unit (not shown). Specifically, the upper computer control component is mainly responsible for the control of the stepping motor and the data analysis and image processing fed back by the optical power meter feedback component. The optical power meter feedback component is mainly responsible for measuring the feedback data of the optical power meters at different positions through the end faces of the two optical fibers and transmitting the feedback data to the upper computer, so that the upper computer can judge whether the two optical fibers are correctly connected. The image acquisition feedback component is willing to shoot partial images of the two optical fiber connection interfaces through a microscope and a CCD, and the upper computer processes the images and judges whether the two optical fibers are correctly connected. The optical fiber coupling component is mainly responsible for coupling the optical fibers output by the two optical fiber connection interfaces.
To sum up, the utility model provides a parallel optical transmission module of multichannel and parallel optical transmission system of multichannel. The utility model provides an among the parallel optical transmission module of multichannel, because the optical fiber array subassembly that the first optical fiber array subassembly of adoption is 45 jiaos for having the coupling end terminal surface, a plurality of lens arrays that need lay between laser instrument and the optical fiber array subassembly have been saved to on guaranteeing the basis that the parallel optic fibre of multichannel can accurate transmission, practiced thrift the cost, improved and realized high-speed signal transmission's in-process at adoption optic fibre, optical coupling efficiency between the multichannel optical device.
It should be noted that although the present invention has been described with reference to the preferred embodiments, the above embodiments are not intended to limit the present invention. To anyone skilled in the art, without departing from the scope of the present invention, the technical solution disclosed above can be used to make many possible variations and modifications to the technical solution of the present invention, or to modify equivalent embodiments with equivalent variations. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
It should be further understood that the terms "first," "second," "third," and the like in the description are used for distinguishing between various components, elements, steps, and the like, and are not intended to imply a logical or sequential relationship between various components, elements, steps, or the like, unless otherwise indicated or indicated.
It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. It must be noted that, as used herein and in the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. For example, reference to "a step" or "an apparatus" means a reference to one or more steps or apparatuses and may include sub-steps as well as sub-apparatuses. All conjunctions used should be understood in the broadest sense. And, the word "or" should be understood to have the definition of a logical "or" rather than the definition of a logical "exclusive or" unless the context clearly dictates otherwise. Further, implementation of the methods and/or apparatus of embodiments of the present invention may include performing the selected task manually, automatically, or in combination.
Claims (11)
1. A multi-channel parallel optical transmission module, comprising: the optical fiber module comprises a shell, a wavelength division demultiplexer, a first optical fiber array component, a second optical fiber array component, an optical fiber connector and an optical receiving chip component, wherein the wavelength division demultiplexer, the first optical fiber array component, the second optical fiber array component, the optical fiber connector and the second optical fiber array component are arranged in the shell; incident light is decomposed into at least two paths of split light through the wavelength division demultiplexer and is output, and each split light is coupled into each optical fiber of the first optical fiber array assembly and is incident on each light receiving chip of the light receiving chip assembly after being transmitted and output through each optical fiber of the optical fiber connector and the second optical fiber array assembly; the first optical fiber array component connected with the wavelength division demultiplexer comprises a first end close to the wavelength division demultiplexer and a second end close to the optical fiber connector; the second fiber array assembly includes a third end proximate the fiber optic connector and a fourth end proximate the light receiving chip assembly.
2. The multi-channel parallel optical transmission module according to claim 1, wherein the first optical fiber array component connected to the wavelength division demultiplexer is at a predetermined angle at a coupling end surface thereof opposite to the wavelength division demultiplexer, and the angle is 45 °.
3. The multi-channel parallel optical transmission module of claim 1 wherein each of the optical fiber array assemblies comprises a first positioning member, an optical fiber array and a second positioning member; the first positioning piece is used for fixing the position of each optical fiber at the input end of the optical fiber array; the second positioning piece is used for fixing the position of each optical fiber at the output end of the optical fiber array.
4. The multiple parallel optical transport module of claim 3 wherein the first positioning member comprises a first channel member and a first cover plate; the first groove piece comprises a plurality of first positioning grooves which are respectively used for placing each optical fiber at the input end of the optical fiber array; the first cover plate covers the first positioning grooves, and the optical fibers at the input end are respectively fixed in the first positioning grooves.
5. The multi-channel parallel optical transmission module of claim 3, wherein the second positioning member comprises a second trough member and a second cover plate; the second groove piece comprises a plurality of second positioning grooves which are respectively used for placing each optical fiber at the output end of the optical fiber array; the second cover plate covers the second positioning grooves, and the optical fibers at the output end are respectively fixed in the second positioning grooves.
6. The multiple parallel optical transport module of claim 4 wherein the first positioning groove is a V-groove and/or a semi-circular groove.
7. The multiple parallel optical transport module of claim 5 wherein the second detent is a V-groove and/or a semi-circular groove.
8. The multi-channel parallel optical transmission module of claim 3, further comprising a first lens set disposed between the second positioning member and the optical receiving chip assembly, wherein the split beams output from the optical fiber array assembly are coupled to the optical receiving chips of the optical receiving chip assembly through the lenses of the first lens set, respectively.
9. The multiple parallel optical transmission module according to claim 1, wherein the optical fiber connector comprises a host computer control component, an optical power meter feedback component, an image acquisition feedback component, and an optical fiber coupling component.
10. A multiple parallel optical transmission system comprising the multiple parallel optical transmission module according to any one of claims 1 to 8.
11. The multiple parallel optical transmission system according to claim 10, further comprising: a hard-brushed circuit board and a laser; the hard brush circuit board, the laser, the wavelength division demultiplexer and the light receiving chip assembly are all directly assembled on the electrode of the hard brush circuit board; the optical fiber array components are sequentially fixed at one end of the hard brush circuit board and are used for transmitting incident light which is decomposed into at least two paths of beam splitting light by the wavelength division demultiplexer; the optical fiber connector is positioned between the adjacent optical fiber array components and is used for coupling the optical fibers between the adjacent optical fiber array components.
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| CN202120506007.6U CN214540148U (en) | 2021-03-10 | 2021-03-10 | Multi-path parallel optical transmission module and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112835160A (en) * | 2021-03-10 | 2021-05-25 | 淮南文峰航天电缆有限公司 | Multi-path parallel optical transmission module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112835160A (en) * | 2021-03-10 | 2021-05-25 | 淮南文峰航天电缆有限公司 | Multi-path parallel optical transmission module |
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Address after: 232008 No.6, Jixing Road, Huainan Economic and Technological Development Zone, Anhui Province Patentee after: Huainan Wenfeng Photoelectric Technology Co.,Ltd. Address before: 232008 No.6, Jixing Road, Huainan Economic and Technological Development Zone, Anhui Province Patentee before: HUAINAN WENFENG SPACE CABLE Co.,Ltd. |
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