CN220271594U - Directional conversion branching unit chip output end structure - Google Patents
Directional conversion branching unit chip output end structure Download PDFInfo
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- CN220271594U CN220271594U CN202321980850.3U CN202321980850U CN220271594U CN 220271594 U CN220271594 U CN 220271594U CN 202321980850 U CN202321980850 U CN 202321980850U CN 220271594 U CN220271594 U CN 220271594U
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Abstract
The utility model relates to the technical field of optical splitter chips, in particular to an output end structure of a directional conversion splitter chip. The transmission output direction of the optical signal in the waveguide is various, and the signal coverage area is larger. The splitter chip comprises a splitter chip body, wherein the splitter chip body comprises 1N paths of waveguides, the N paths of waveguides are arranged on the same vertical plane, each path of waveguide in the N paths of waveguides is separately divided into M paths of waveguides, so that N groups of waveguides are obtained, and each group of waveguides comprises M paths of waveguides; n is a positive integer greater than 2, M is a positive integer greater than 2; the output end of each path of waveguide is an inclined plane; the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are the same, and the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are not the same.
Description
Technical Field
The utility model relates to the technical field of optical splitter chips, in particular to an output end structure of a directional conversion splitter chip.
Background
The optical splitter chip is also called an optical splitter, is one of the most important passive devices in an optical fiber circuit, does not need external energy, only needs input light, and consists of an incident light element, an emergent light element, a reflecting mirror element and a scattering element, and is now commonly called a PLC (planar waveguide) splitter which is manufactured by adopting a semiconductor process (and film plating, photoetching and etching), a waveguide array surface is positioned on the upper surface of the chip, optical signals are transmitted in a waveguide, a core layer is usually made of Si02 (silicon dioxide) material, and the splitting function is also concentrated in the core layer. And then the two ends of the chip are respectively coupled with the input end and the output end and packaged.
The existing optical splitter chip is mainly applied to various optical distribution equipment, optical cable splice boxes and distribution boxes. If the exit angle of the laser radar can be changed and a plurality of splitters are overlapped, the laser radar has wider application range and can be applied to advanced devices such as laser radars.
In the existing directional conversion splitter chip, the transmission output direction of an optical signal in a waveguide is a single direction, and the signal coverage area is smaller. Therefore, it is very necessary to design a directional conversion splitter chip output structure with a large signal coverage area, in which the transmission output directions of optical signals in the waveguide are various.
Disclosure of Invention
The utility model aims to solve the defects that the transmission output direction of an optical signal of the traditional directional conversion splitter chip in a waveguide is a single direction and the signal coverage area is smaller. The output end structure of the directional conversion branching unit chip is provided, wherein the transmission output directions of optical signals in the waveguide are various, and the signal coverage range is large.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the directional conversion branching device chip output end structure comprises a branching device chip body, wherein the branching device chip body comprises 1 branch N paths of waveguides, the N paths of waveguides are on the same vertical plane, each path of waveguide in the N paths of waveguides is separately divided into M paths of waveguides, so that N groups of waveguides are obtained, and each group of waveguides comprises M paths of waveguides; n is a positive integer greater than 2, M is a positive integer greater than 2;
the output end of each path of waveguide is an inclined plane;
the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are the same, and the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are not the same.
The output end structure of the directional conversion branching device chip has N optical signals in the transmission output directions of the waveguides, M waveguides are further included in the waveguides in each direction, and the signal coverage area is large and is specifically determined by the incidence angle and the refractive index. The scheme changes the structure of the output end of the waveguide, so that different optical chips output optical signals of different angles, and the input ends of the optical chips with the output ends outputting various angles are coupled, so that when the incident light angles are the same, the waveguides with the different output end structures output the optical signals of different angles, and the previous point coverage is changed into signal surface coverage, thereby achieving the coverage range of increasing signal transmission. According to the scheme, the output end structure of the directional conversion branching device chip is changed, so that the output direction of the optical signal is changed, the transmission output direction of the optical signal in the waveguide is various, and the signal coverage area is large.
Preferably, the lengths of each waveguide in the same group of waveguides are the same, and not the lengths of each waveguide in the same group of waveguides are different.
Preferably, the greater the included angle of the inclined surface, the longer the length of the waveguide corresponding to the inclined surface.
Preferably, n=3, m=8; thereby obtaining 3 groups of waveguides, each group of waveguides comprising 8 waveguides;
of the 3 sets of waveguides in the waveguide set,
the included angle of the inclined planes of the output ends of the 8 paths of waveguides in the 1 st group of waveguides is 60 degrees, and the length of each path of waveguide in the 1 st group of waveguides is 15.7mm;
the included angle of the inclined planes of the output ends of the 8 paths of waveguides in the 2 nd group of waveguides is 45 degrees, and the length of each path of waveguide in the 2 nd group of waveguides is 15.2mm:
the included angle of the inclined plane of the output end of the 8-path waveguide in the 3 rd group of waveguides is 30 degrees, and the length of each path of waveguide in the 3 rd group of waveguides is 14.7mm.
Preferably, n=2, m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
of the 2 sets of waveguides in the waveguide set,
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the group of waveguides is 60 degrees, and the length of each path of waveguide in the group of waveguides is 15.7mm;
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the other group of waveguides is 45 degrees, and the length of each path of waveguide in the group of waveguides is 15.2mm.
Preferably, n=2, m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
of the 2 sets of waveguides in the waveguide set,
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the group of waveguides is 60 degrees, and the length of each path of waveguide in the group of waveguides is 15.7mm;
the included angle of the inclined plane of the output end of 8 paths of waveguides in the other group of waveguides is 30 degrees, and the length of each path of waveguide in the group of waveguides is 14.7mm.
Preferably, n=2, m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
of the 2 sets of waveguides in the waveguide set,
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the group of waveguides is 45 degrees, and the length of each path of waveguide in the group of waveguides is 15.2mm;
the included angle of the inclined plane of the output end of 8 paths of waveguides in the other group of waveguides is 30 degrees, and the length of each path of waveguide in the group of waveguides is 14.7mm.
The utility model can achieve the following effects:
the utility model changes the output end structure of the directional conversion branching device chip, thereby changing the output direction of the optical signal, leading the transmission output direction of the optical signal in the waveguide to be various, and leading the signal coverage to be larger.
Drawings
Fig. 1 is a schematic diagram of a front view connection structure of the present utility model.
Fig. 2 is a schematic diagram of a side view connection structure of the present utility model.
Fig. 3 is a schematic top view of a top view of the present utility model.
Fig. 4 is a schematic diagram of a front view of a connection structure according to the present utility model.
Fig. 5 is a schematic diagram of a side view connection structure of the present utility model.
Fig. 6 is a schematic diagram of a front view of a connection structure according to the present utility model.
Fig. 7 is a schematic diagram of a front view of a connection structure according to the present utility model.
Detailed Description
The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.
Example 1: an output end structure of a directional conversion branching device chip. 1-3, the splitter chip comprises a splitter chip body, wherein the splitter chip body comprises 1N paths of waveguides, the N paths of waveguides are on the same vertical plane, each path of waveguide in the N paths of waveguides is separately divided into M paths of waveguides, so that N groups of waveguides are obtained, and each group of waveguides comprises M paths of waveguides; n is a positive integer greater than 2, M is a positive integer greater than 2;
the output end of each path of waveguide is an inclined plane;
the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are the same, and the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are not the same.
The lengths of each waveguide in the same group of waveguides are the same, and the lengths of each waveguide in the same group of waveguides are not the same.
The greater the included angle of the inclined plane, the longer the length of the waveguide corresponding to the inclined plane.
In this embodiment, n=3, and m=8; thereby obtaining 3 groups of waveguides, each group of waveguides comprising 8 waveguides;
of the 3 sets of waveguides in the waveguide set,
the included angle of the inclined planes of the output ends of the 8 paths of waveguides in the 1 st group of waveguides is 60 degrees, and the length of each path of waveguide in the 1 st group of waveguides is 15.7mm;
the included angle of the inclined planes of the output ends of the 8 paths of waveguides in the 2 nd group of waveguides is 45 degrees, and the length of each path of waveguide in the 2 nd group of waveguides is 15.2mm;
the included angle of the inclined plane of the output end of the 8-path waveguide in the 3 rd group of waveguides is 30 degrees, and the length of each path of waveguide in the 3 rd group of waveguides is 14.7mm.
The output end structure of the directional conversion branching device chip has N optical signals in the transmission output directions of the waveguides, M waveguides are further included in the waveguides in each direction, and the signal coverage area is large and is specifically determined by the incidence angle and the refractive index. The output end structure of the waveguide is changed, so that different optical chips output optical signals with different angles, and the input ends of the optical chips with the output ends outputting various angles are coupled and connected, so that when the incident light angles are the same, the waveguides with different output end structures output the optical signals with different angles, and the previous point coverage is changed into the signal surface coverage, thereby achieving the purpose of increasing the coverage range of signal transmission. According to the embodiment, the output end structure of the directional conversion branching device chip is changed, so that the output direction of the optical signal is changed, the transmission output direction of the optical signal in the waveguide is various, and the signal coverage area is large.
The embodiment has one waveguide input end, 24 waveguide output ends and 3 optical signal output directions. The different light path lengths are convenient for outputting different lights, and the reliability is good.
Example 2: an output end structure of a directional conversion branching device chip. Referring to fig. 3-5, the splitter chip comprises a splitter chip body, wherein the splitter chip body comprises 1N-way waveguides, the N-way waveguides are on the same vertical plane, each way waveguide in the N-way waveguides is separately divided into M-way waveguides, so as to obtain N groups of waveguides, and each group of waveguides comprises M-way waveguides; n is a positive integer greater than 2, M is a positive integer greater than 2;
the output end of each path of waveguide is an inclined plane;
the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are the same, and the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are not the same.
The lengths of each waveguide in the same group of waveguides are the same, and the lengths of each waveguide in the same group of waveguides are not the same.
The greater the included angle of the inclined plane, the longer the length of the waveguide corresponding to the inclined plane.
In this embodiment, n=2, and m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
of the 2 sets of waveguides in the waveguide set,
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the group of waveguides is 60 degrees, and the length of each path of waveguide in the group of waveguides is 15.7mm;
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the other group of waveguides is 45 degrees, and the length of each path of waveguide in the group of waveguides is 15.2mm.
The embodiment has one waveguide input end, 16 waveguide output ends and 2 optical signal output directions. The different light path lengths are convenient for outputting different lights, and the reliability is good.
Example 3: an output end structure of a directional conversion branching device chip. Referring to fig. 3, 5 and 6, the splitter chip comprises a splitter chip body, wherein the splitter chip body comprises 1-way N-way waveguides, the N-way waveguides are on the same vertical plane, each way waveguide in the N-way waveguides is separately divided into M-way waveguides, so as to obtain N groups of waveguides, and each group of waveguides comprises M-way waveguides; n is a positive integer greater than 2, M is a positive integer greater than 2;
the output end of each path of waveguide is an inclined plane;
the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are the same, and the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are not the same.
The lengths of each waveguide in the same group of waveguides are the same, and the lengths of each waveguide in the same group of waveguides are not the same.
The greater the included angle of the inclined plane, the longer the length of the waveguide corresponding to the inclined plane.
In this embodiment, n=2, and m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
of the 2 sets of waveguides in the waveguide set,
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the group of waveguides is 60 degrees, and the length of each path of waveguide in the group of waveguides is 15.7mm;
the included angle of the inclined plane of the output end of 8 paths of waveguides in the other group of waveguides is 30 degrees, and the length of each path of waveguide in the group of waveguides is 14.7mm.
The embodiment has one waveguide input end, 16 waveguide output ends and 2 optical signal output directions. The different light path lengths are convenient for outputting different lights, and the reliability is good.
Example 4: an output end structure of a directional conversion branching device chip. Referring to fig. 3, 5 and 7, the splitter chip comprises a splitter chip body, wherein the splitter chip body comprises 1-way N-way waveguides, the N-way waveguides are on the same vertical plane, each way waveguide in the N-way waveguides is separately divided into M-way waveguides, so as to obtain N groups of waveguides, and each group of waveguides comprises M-way waveguides; n is a positive integer greater than 2, M is a positive integer greater than 2;
the output end of each path of waveguide is an inclined plane;
the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are the same, and the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are not the same.
The lengths of each waveguide in the same group of waveguides are the same, and the lengths of each waveguide in the same group of waveguides are not the same.
The greater the included angle of the inclined plane, the longer the length of the waveguide corresponding to the inclined plane.
In this embodiment, n=2, and m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
of the 2 sets of waveguides in the waveguide set,
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the group of waveguides is 45 degrees, and the length of each path of waveguide in the group of waveguides is 15.2mm;
the included angle of the inclined plane of the output end of 8 paths of waveguides in the other group of waveguides is 30 degrees, and the length of each path of waveguide in the group of waveguides is 14.7mm.
The embodiment has one waveguide input end, 16 waveguide output ends and 2 optical signal output directions. The different light path lengths are convenient for outputting different lights, and the reliability is good.
Claims (7)
1. The directional conversion branching device chip output end structure comprises a branching device chip body, wherein the branching device chip body comprises 1-way N-way waveguides, and is characterized in that the N-way waveguides are arranged on the same vertical surface, each way of waveguide in the N-way waveguides is separately divided into M-way waveguides, so that N groups of waveguides are obtained, and each group of waveguides comprises M-way waveguides; n is a positive integer greater than 2, M is a positive integer greater than 2;
the output end of each path of waveguide is an inclined plane;
the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are the same, and the included angles of the inclined planes of the output ends of each waveguide in the same group of waveguides are not the same.
2. The directional conversion splitter chip output structure of claim 1, wherein the lengths of each waveguide in a same set of waveguides are the same, and not the lengths of each waveguide in a same set of waveguides are different.
3. A directional conversion splitter chip output structure according to claim 2, wherein the greater the angle of the bevel, the greater the length of the waveguide to which the bevel corresponds.
4. A directional conversion splitter chip output structure according to claim 1, 2 or 3, wherein n=3 and m=8; thereby obtaining 3 groups of waveguides, each group of waveguides comprising 8 waveguides;
among the 3 groups of waveguides, the included angle of the inclined plane of the output end of the 8-path waveguide in the 1 st group of waveguides is 60 degrees, and the length of each path of waveguide in the 1 st group of waveguides is 15.7mm;
the included angle of the inclined planes of the output ends of the 8 paths of waveguides in the 2 nd group of waveguides is 45 degrees, and the length of each path of waveguide in the 2 nd group of waveguides is 15.2mm;
the included angle of the inclined plane of the output end of the 8-path waveguide in the 3 rd group of waveguides is 30 degrees, and the length of each path of waveguide in the 3 rd group of waveguides is 14.7mm.
5. A directional conversion splitter chip output structure according to claim 1, 2 or 3, wherein n=2 and m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
in the 2 groups of waveguides, the included angle of the inclined planes of the output ends of 8 paths of waveguides in one group of waveguides is 60 degrees, and the length of each path of waveguide in the group of waveguides is 15.7mm;
the included angle of the inclined planes of the output ends of 8 paths of waveguides in the other group of waveguides is 45 degrees, and the length of each path of waveguide in the group of waveguides is 15.2mm.
6. A directional conversion splitter chip output structure according to claim 1, 2 or 3, wherein n=2 and m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
in the 2 groups of waveguides, the included angle of the inclined planes of the output ends of 8 paths of waveguides in one group of waveguides is 60 degrees, and the length of each path of waveguide in the group of waveguides is 15.7mm;
the included angle of the inclined plane of the output end of 8 paths of waveguides in the other group of waveguides is 30 degrees, and the length of each path of waveguide in the group of waveguides is 14.7mm.
7. A directional conversion splitter chip output structure according to claim 1, 2 or 3, wherein n=2 and m=8; thereby obtaining 2 groups of waveguides, each group of waveguides comprising 8 waveguides;
in the 2 groups of waveguides, the included angle of the inclined planes of the output ends of 8 paths of waveguides in one group of waveguides is 45 degrees, and the length of each path of waveguide in the group of waveguides is 15.2mm;
the included angle of the inclined plane of the output end of 8 paths of waveguides in the other group of waveguides is 30 degrees, and the length of each path of waveguide in the group of waveguides is 14.7mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321980850.3U CN220271594U (en) | 2023-07-26 | 2023-07-26 | Directional conversion branching unit chip output end structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321980850.3U CN220271594U (en) | 2023-07-26 | 2023-07-26 | Directional conversion branching unit chip output end structure |
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