CN114706172A - Eight-channel optical transceiver module - Google Patents
Eight-channel optical transceiver module Download PDFInfo
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- CN114706172A CN114706172A CN202210180925.3A CN202210180925A CN114706172A CN 114706172 A CN114706172 A CN 114706172A CN 202210180925 A CN202210180925 A CN 202210180925A CN 114706172 A CN114706172 A CN 114706172A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 193
- 239000000758 substrate Substances 0.000 claims description 8
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 abstract description 9
- 238000004806 packaging method and process Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4244—Mounting of the optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4274—Electrical aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to the technical field of optical modules, and provides an eight-channel optical transceiver module. The optical fiber coupler comprises a circuit board, an eight-channel transmitting optical path and an eight-channel receiving optical path, wherein the circuit board is arranged in a mold shell; the transmitting light path and the receiving light path are located on the same surface of the circuit board, wherein the inner direction of the transmitting light path is parallel to the long edge direction of the circuit board, and the placing direction of the receiving light path and the direction of the transmitting light path form a preset angle. The invention overcomes the problem that in the prior art, eight transmitting and eight receiving optical paths are arranged on the same surface of a circuit board, and the transmitting and receiving optical paths are basically arranged in parallel, which has larger limitation on circuit layout wiring and optical device packaging.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of optical modules, in particular to an eight-channel optical transceiver module.
[ background of the invention ]
With the explosive development of applications such as big data cloud computing, artificial intelligence and 5G universal internet, the scale of a data center network is continuously enlarged, and the internal flow is increased rapidly. According to the prediction, the data center flow doubles every three years, and correspondingly, the bandwidth of the data center optical module must also be doubled every three years.
Currently, 4x100G optical modules with four transmit channels and four receive channels and a rate of 100Gb/s per channel are being applied in bulk, and 800G optical modules are expected to be rapidly added and become the mainstream of the market in the coming years. Therefore, developing a low-cost 800G optical module is a relatively urgent task for optical module suppliers. The current photoelectric industry chain technology level is used for realizing an 800G optical module, and the practical path is to increase the number of channels by one time on the basis of the current 4x100Gb/s optical module, namely 8x100 Gb/s.
Changing from 4 channels to 8 channels without changing the volume of the optical module package is a great challenge for packaging optical devices. How to reduce the layout difficulty of the optical device and reduce the packaging cost is a problem of general attention in the industry. In other technical solutions, the eight transmitting and eight receiving optical paths are disposed on the same side of the circuit board, and the transmitting and receiving optical paths are disposed substantially in parallel, which has a great limitation for circuit board routing and optical device packaging.
In view of the above, overcoming the drawbacks of the prior art is an urgent problem in the art.
[ summary of the invention ]
In other technical solutions, the eight transmitting and eight receiving optical paths are disposed on the same side of the circuit board, and the transmitting and receiving optical paths are disposed substantially in parallel, which has a great limitation for circuit board routing and optical device packaging.
The embodiment of the invention adopts the following technical scheme:
the invention provides an eight-channel optical transceiver module, comprising:
the circuit board, the eight-channel transmitting light path and the eight-channel receiving light path are arranged in the mold shell;
the transmitting light path and the receiving light path are positioned on the same surface of the circuit board, wherein the transmitting direction of the transmitting component forming the transmitting light path is parallel to the long edge direction of the circuit board, and the placing direction of the receiving component forming the receiving light path and the transmitting direction of the transmitting component form a preset angle.
Preferably, the angle range of a preset angle formed by the placing direction of the receiving component forming the receiving light path and the transmitting direction of the transmitting component is 10-45 degrees.
Preferably, the emitting components of the emitting optical path are placed on the same tungsten copper substrate.
Preferably, the tungsten copper substrate is of a convex structure, a through hole which can accommodate the size of the emission component of the emission light path is dug on the circuit board, and a boss surface which is used for placing the emission component of the emission light path is embedded in the through hole.
Preferably, the eight-channel receiving optical path is specifically composed of two groups of four-channel receiving assemblies of four channels, the four-channel receiving assemblies are arranged on the surface of the circuit board, and the first four-channel receiving assembly is positioned in front of the second four-channel receiving assembly relatively closer to the common module light port side, so that a front-back staggered arrangement between the first four-channel receiving assembly and the second four-channel receiving assembly is formed.
Preferably, the horizontal lateral distance of the receiving port of the first four-channel receiving assembly with respect to the common module optical port on the eight-channel optical transceiver module is d 1; the horizontal transverse distance of the receiving port of the second four-channel receiving assembly relative to the common module optical port on the eight-channel optical transceiver module is d 2; the horizontal transverse distance between the emission port of the emission optical path and the common module optical port on the eight-channel optical transceiver module is d3, specifically:
the horizontal lateral distance d1, horizontal lateral distance d2, and horizontal lateral distance d3 are distances relative to a direction occupied by a long axis of the light module; a first four-channel receiving light path, a second four-channel receiving light path and a transmitting light path are sequentially distributed in the short axis direction of the optical module; the first four-channel receiving optical path and the transmitting optical path are respectively adjacent to two side walls of the optical module, and d1< d3< d 2.
Preferably, the circuit board is further dug with two half through holes for mounting the first four-channel receiving assembly and the second four-channel receiving assembly respectively;
the half through holes for installing the first four-channel receiving assembly and the half through holes for installing the second four-channel receiving assembly are positioned on the same side with the transmitting light path; or the half through hole for installing the first four-channel receiving component and the transmitting light path are positioned on the same side, and the half through hole for installing the second four-channel receiving component is positioned on the circuit board on the side opposite to the transmitting light path.
Preferably, the emission light path includes a first four-channel emission light path and a second four-channel emission light path; the working waveband of the first four-channel transmitting light path is the same as that of the first four-channel receiving light path; the working wave band of the second four-channel transmitting light path is the same as that of the second four-channel receiving light path; then also include:
a first four-channel transmitting light path is arranged on one side of the transmitting light path adjacent to the second four-channel receiving light path; and the second four-channel emission light path is adjacent to the side wall of the optical module.
Preferably, the emission direction of the emission light path after being set is consistent with the horizontal direction of the long axis of the optical module relative to the optical module; the first and second four-channel receiving optical paths are arranged at an angle of 15 ° with respect to the horizontal direction.
Preferably, the module light port is MPO, LC, SN, MDC or CS.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
the invention provides an eight-channel optical transceiver module with a novel layout scheme, which comprises a module shell, a circuit board arranged in the module shell, and eight-channel transmitting and receiving optical paths, wherein the transmitting optical path and the receiving optical path are positioned on the same surface of the circuit board, the inner direction of the transmitting optical path is parallel to the long edge direction of the circuit board, and the arrangement direction of the receiving optical path and the direction of the transmitting optical path form a certain angle. Therefore, the problem that in the prior art, eight transmitting optical paths and eight receiving optical paths are arranged on the same surface of a circuit board and are basically placed in parallel, and the problem that the wiring of the circuit board or the packaging of optical devices is greatly limited is solved.
[ description of the drawings ]
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a top view of an eight-channel optical transceiver module according to an embodiment of the present invention;
fig. 2 is an axial view of a circuit board and a transmitting optical path structure provided in an embodiment of the present invention;
fig. 3 is an axial view of a circuit board and a transmitting optical path structure provided in an embodiment of the present invention;
fig. 4 is a schematic top view of a circuit board and a transmitting optical path structure according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a module structure showing distances of light paths according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a module structure showing wavelength bands in which optical paths are configured according to an embodiment of the present invention;
fig. 7 is an eight-channel transceiver module with a receiving optical path not arranged obliquely according to an embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are for convenience in describing the present invention only and do not require that the present invention be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1:
an embodiment 1 of the present invention provides an eight-channel optical transceiver module, as shown in fig. 1, including:
the circuit board 2, the eight-channel transmitting optical path 3 and the eight-channel receiving optical path 4 are arranged in the mold shell 1;
the transmitting optical path 3 and the receiving optical path 4 are located on the same side of the circuit board 2, wherein the transmitting direction of the transmitting component forming the transmitting optical path 3 is parallel to the long side direction of the circuit board 2 (the long side direction of the circuit board 2 in fig. 1 is represented as the x-axis direction in the corresponding diagram), and the placing direction of the receiving component forming the receiving optical path and the transmitting direction of the transmitting component form a preset angle.
The invention provides an eight-channel optical transceiver module with a novel layout scheme, which comprises a module shell, a circuit board arranged in the module shell, and eight-channel transmitting and receiving optical paths, wherein the transmitting optical path and the receiving optical path are positioned on the same surface of the circuit board, the inner direction of the transmitting optical path is parallel to the long edge direction of the circuit board, and the arrangement direction of the receiving optical path and the direction of the transmitting optical path form a certain angle. Therefore, the problem that in the prior art, eight transmitting optical paths and eight receiving optical paths are arranged on the same surface of a circuit board and are basically placed in parallel, and the problem that the wiring of the circuit board or the packaging of optical devices is greatly limited is solved.
In many optional implementations, in consideration of the bending degree allowed by the length of the optical fiber led out from the optical module optical port 5 (the optical module port is MPO, LC, SN, MDC or CS, which are all represented in the drawings of the present application as MPO examples, but should not be construed as a single applicable interface scenario of the present invention), and in consideration of the setting space occupied by the receiving optical path under the inclination angle, in combination with the embodiments of the present invention, the angle range where the direction of the receiving optical path and the direction of the transmitting optical path form a preset angle is 10 ° to 45 °.
For convenience of arrangement of the emission light path and considering heat dissipation requirements to be considered in response to 8 lasers included in the emission light path, in the embodiment of the present invention, it is preferable that the emission components of the emission light path are disposed on the same tungsten-copper substrate. The corresponding combination structure is more clearly shown in the axial view of fig. 2, and it can also be seen from fig. 2 that the tungsten-copper substrate is in a convex structure, a through hole with the size of the emitting component capable of accommodating the emitting optical path is dug on the circuit board, and the convex surface of the emitting component for placing the emitting optical path is embedded in the through hole. The convex mesa structure is manufactured, on one hand, the embedded fixing structure is conveniently formed with the corresponding through hole, and the fixing stability is improved; in the two aspects, the corresponding boss surface can be used as a positioning structure, so that the complexity of the assembly and alignment installation process is simplified.
In the embodiment of the invention, in order to reduce the volume of the whole optical module and ensure that the solution provided by the invention can be normally practiced, a more detailed and feasible eight-channel receiving optical path implementation scheme is provided. As shown in fig. 1, the eight-channel receiving optical path is specifically composed of two groups of four-channel receiving assemblies with four channels, the four-channel receiving assemblies are disposed on the surface of the circuit board, and the first four-channel receiving assembly is located in front of the second four-channel receiving assembly relatively closer to the common module optical port side, so as to form a front-back staggered arrangement between the first four-channel receiving assembly and the second four-channel receiving assembly.
In order to achieve the above-mentioned characteristics of front-to-back staggered layout, a practical solution design is also provided below, as shown in fig. 5, the horizontal transverse distance d1 between the receiving port of the first four-channel receiving assembly and the common module optical port on the eight-channel optical transceiver module is; the horizontal transverse distance of the receiving port of the second four-channel receiving assembly relative to the common module optical port on the eight-channel optical transceiver module is d 2; the horizontal transverse distance between the emission port of the emission optical path and the common module optical port on the eight-channel optical transceiver module is d3, specifically:
the horizontal lateral distance d1, horizontal lateral distance d2, and horizontal lateral distance d3 are distances relative to a direction occupied by a long axis of the light module; a first four-channel receiving light path, a second four-channel receiving light path and a transmitting light path are sequentially distributed in the short axis direction of the optical module; the first four-channel receiving optical path and the transmitting optical path are respectively adjacent to two side walls of the optical module, and d1< d3< d 2.
As shown in fig. 2, for the same purpose as the transmitting light path, i.e. for convenience of installation and positioning and for better identification, two half through holes are further dug on the circuit board for installing the first four-channel receiving assembly and the second four-channel receiving assembly respectively;
the half through holes for installing the first four-channel receiving assembly and the half through holes for installing the second four-channel receiving assembly are located on the same side with the transmitting light path.
In a more preferred implementation, in addition to achieving the above convenience of installation and positioning, and in order to achieve a better identification effect, and further in order to reduce interference between optical ports, compared with the implementation manner of the half through hole shown in fig. 2, a half through hole improvement scheme shown in fig. 3 and fig. 4 is further provided, where the half through hole for installing the first four-channel receiving component is located on the same side as the emission optical path, and the half through hole for installing the second four-channel receiving component is located on the opposite side of the emission optical path on the circuit board. The above-mentioned improvement as shown in fig. 3 can be realized by the strong constraint condition set by the technical solution of the present invention, that is, as shown in fig. 1, there is a certain gap between the coupling fiber of the optical port 5 of the optical module and the circuit board, which allows the coupling fiber forming the first four-channel receiving module in fig. 3 to be disposed from the back side of the circuit board in addition to the same-side layout as shown in fig. 1, so that it is possible to further reduce the optical path interference among the first four-channel receiving module, the second four-channel receiving module and the eight-channel transmitting module.
In the embodiment of the present invention, as shown in fig. 6, the emission optical path includes a first four-channel emission optical path and a second four-channel emission optical path; wherein, the working waveband of the first four-channel transmitting optical path is the same as the working waveband of the first four-channel receiving optical path (shown in fig. 6 as λ 5 to λ 8); the working waveband of the second four-channel transmitting optical path is the same as that of the second four-channel receiving optical path (shown as lambda 1-lambda 4 in fig. 6); then also include: a first four-channel transmitting light path is arranged on one side of the transmitting light path adjacent to the second four-channel receiving light path; and the second four-channel emission light path is adjacent to the side wall of the optical module. This approach can be based on the staggered structure shown in fig. 5, and further increases the flexibility of the optical path layout.
In the embodiment of the present invention, as shown in fig. 1, to provide an optimal implementation scheme for the embodiment of the present invention, a transmission direction after the transmission optical path is set is consistent with a horizontal direction of a long axis of an optical module; the first and second four-channel receiving optical paths are arranged at an angle of 15 ° with respect to the horizontal direction.
To more clearly illustrate the significance of the present invention, fig. 7 shows that the receiving optical paths are not obliquely arranged, the directions of the transmitting optical paths and the receiving optical paths (directions of arrows) of the eight-channel transceiver module are parallel to the long side direction of the circuit board (x direction in coordinates of fig. 5), and even if the first group of receiving optical paths 4-1 and the second group of receiving optical paths are arranged in a front-back staggered manner, the first group of receiving optical paths and the optical fibers thereof will cause interference to the optical devices of the second group of receiving optical paths. And the two groups of receiving optical path optical fibers have large bending degree and large stress.
Example 2:
the embodiment of the present invention explains an application scenario to which the solution proposed in embodiment 1 of the present invention can be applied from another possible implementation manner. The embodiment is still illustrated by way of example in fig. 1, which is an optical module with eight transmitting optical paths and eight receiving optical paths. Each channel operates in the 1310nm band, and the rate of each channel is 100Gb/s, so that the optical module is an 800G optical module. Eight transmitting optical paths and eight receiving optical paths of the 800G optical module are all arranged on the same surface of a module circuit board, and according to the example in the figure 1, the optical paths are arranged on the Top surface of the circuit board. Each transceiver channel is connected to a common module optical port 7 by an optical fiber 6. As shown in fig. 2, a through hole is formed in the circuit board 2 in a region corresponding to the emission optical path, the tungsten-copper substrate 7 is inserted into the through hole, and the eight-channel emission optical path 3 as a whole is placed in a concave region formed by the tungsten-copper substrate 7 and the circuit board through hole. In the area corresponding to the receiving light path, a semi-through hole is dug on the circuit board for mounting the receiving chip and the light path element.
As shown in fig. 1, the eight receiving optical paths are divided into two groups, the first group receiving optical component 4-1 and the second group receiving optical component 4-2 both include four channels, the two groups of receiving optical paths are respectively placed on the circuit board, and the first group receiving optical component 4-1 is placed in front of the second group receiving optical component 4-2 to form a staggered placement. In addition, the light path directions of the light components (including the light receiving component and the light emitting component) are indicated by arrows in fig. 1, and it can be seen that the direction of the light emitting component is parallel to the long side direction of the circuit board (x direction in the coordinate of fig. 1), and the direction of the light receiving component is at an angle with the direction of the light emitting component, the angle in the figure is approximately 15 °, and in fact, 10-45 ° is a reasonable angle range.
To illustrate the significance of the present invention more clearly, fig. 7 shows that the eight-channel transceiver module with the receiving optical paths not arranged obliquely has the transmitting optical path and the receiving optical path directions (arrow directions) parallel to the long side direction of the circuit board (x direction in the coordinate of fig. 5), and even if the first group of receiving optical elements 4-1 and the second group of receiving optical paths are arranged in a staggered manner, the first group of receiving optical paths and the optical fibers thereof will interfere with the optical devices in the second group of receiving optical paths. And the two groups of receiving optical path optical fibers have large bending degree and large stress.
The inclined layout conforms to the bending direction of the optical fiber, so that the influence of the bending stress of the optical fiber on the optical path can be greatly reduced, and the reliability of the module is improved; more importantly, the inclined and front-to-back staggered optical device layout brings more flexibility to the circuit layout and the manufacture of the receiving optical assembly, and can reduce interference.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An eight-channel optical transceiver module, comprising:
the circuit board, the eight-channel transmitting light path and the eight-channel receiving light path are arranged in the mold shell;
the transmitting light path and the receiving light path are positioned on the same surface of the circuit board, wherein the transmitting direction of the transmitting component forming the transmitting light path is parallel to the long side direction of the circuit board, and the placing direction of the receiving component forming the receiving light path and the transmitting direction of the transmitting component form a preset angle.
2. The eight-channel optical transceiver module of claim 1, wherein the arrangement direction of the receiving elements forming the receiving optical path and the transmission direction of the transmitting element form a predetermined angle in a range of 10 ° to 45 °.
3. The eight-channel optical transceiver module of claim 1, wherein the transmitting elements of the transmit optical path are disposed on the same W-Cu substrate.
4. The eight-channel optical transceiver module of claim 3, wherein the tungsten-copper substrate is of a convex structure, a through hole with a size capable of accommodating the emitting component of the emitting optical path is formed in the circuit board, and a convex surface for placing the emitting component of the emitting optical path is embedded in the through hole.
5. The eight-channel optical transceiver module according to claim 1, wherein the eight-channel receiving optical path is specifically composed of two sets of four-channel receiving elements with four channels, the four-channel receiving elements are disposed on the surface of the circuit board, and the first four-channel receiving element is located in front of the second four-channel receiving element relatively closer to the common module optical port side, so as to form a front-back staggered arrangement between the first four-channel receiving element and the second four-channel receiving element.
6. The eight-channel optical transceiver module of claim 5, wherein the receiving port of the first four-channel receiving assembly has a horizontal lateral distance d1 with respect to the common module optical port on the eight-channel optical transceiver module; the horizontal transverse distance of the receiving port of the second four-channel receiving assembly relative to the common module optical port on the eight-channel optical transceiver module is d 2; the horizontal transverse distance between the emission port of the emission optical path and the common module optical port on the eight-channel optical transceiver module is d3, specifically:
the horizontal lateral distance d1, horizontal lateral distance d2, and horizontal lateral distance d3 are distances relative to a direction occupied by a long axis of the light module; a first four-channel receiving light path, a second four-channel receiving light path and a transmitting light path are sequentially distributed in the short axis direction of the optical module; the first four-channel receiving optical path and the transmitting optical path are respectively adjacent to two side walls of the optical module, and d1< d3< d 2.
7. The eight-channel optical transceiver module of claim 6, wherein the circuit board is further dug with two half through holes for mounting the first four-channel receiving module and the second four-channel receiving module, respectively;
the half through holes for installing the first four-channel receiving assembly and the half through holes for installing the second four-channel receiving assembly are positioned on the same side with the transmitting light path; or the half through hole for installing the first four-channel receiving component and the transmitting light path are positioned on the same side, and the half through hole for installing the second four-channel receiving component is positioned on the circuit board on the side opposite to the transmitting light path.
8. The eight-channel optical transceiver module of claim 6, wherein the transmit optical path comprises a first four-channel transmit optical path and a second four-channel transmit optical path; the working waveband of the first four-channel transmitting light path is the same as that of the first four-channel receiving light path; the working wave band of the second four-channel transmitting light path is the same as that of the second four-channel receiving light path; then also include:
a first four-channel transmitting light path is arranged on one side of the transmitting light path adjacent to the second four-channel receiving light path; and the second four-channel emission light path is adjacent to the side wall of the optical module.
9. The eight-channel optical transceiver module according to claim 6, wherein the emission direction of the emission optical path after being set is consistent with the horizontal direction of the long axis of the optical module; the first and second four-channel receiving optical paths are arranged at an angle of 15 ° with respect to the horizontal direction.
10. The eight-channel optical transceiver module of claim 6, wherein the module optical port is MPO, LC, SN, MDC or CS.
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| CN202210180925.3A CN114706172B (en) | 2022-02-25 | 2022-02-25 | Eight-channel optical transceiver module |
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| CN202210180925.3A CN114706172B (en) | 2022-02-25 | 2022-02-25 | Eight-channel optical transceiver module |
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| CN114706172B CN114706172B (en) | 2023-06-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117950125A (en) * | 2024-03-27 | 2024-04-30 | 武汉钧恒科技有限公司 | 800G DR8 optical module |
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