CN114089479A - Combination device of planar optical waveguide and multi-core optical fiber connector - Google Patents
Combination device of planar optical waveguide and multi-core optical fiber connector Download PDFInfo
- Publication number
- CN114089479A CN114089479A CN202111507737.9A CN202111507737A CN114089479A CN 114089479 A CN114089479 A CN 114089479A CN 202111507737 A CN202111507737 A CN 202111507737A CN 114089479 A CN114089479 A CN 114089479A
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- Prior art keywords
- optical fiber
- optical
- connector
- planar
- fiber array
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Classifications
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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
- G02B6/26—Optical coupling means
- G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
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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
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
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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
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
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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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
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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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
Abstract
The invention discloses a combination device of a planar optical waveguide and a multi-core optical fiber connector, which comprises: the optical fiber connector comprises at least one multi-core optical fiber connector, at least one optical fiber array connector and at least one planar optical waveguide chip, wherein the multi-core optical fiber connector is connected with one or more optical fiber array connectors through interconnected optical fibers; and each optical fiber array connector is in optical coupling connection with the corresponding optical path in the planar optical waveguide chip. The brand new optical fiber interconnection scheme provided by the invention not only has the advantages of efficient plugging and unplugging of the multi-core optical fiber connector, easiness in management and maintenance and the like, but also has the advantages of function integration, high channel density, high reliability and the like of a planar optical waveguide chip.
Description
Technical Field
The invention relates to the technical field of optical fiber communication, in particular to a combination device of a planar optical waveguide and a multi-core optical fiber connector.
Background
Optical fiber communication technology has been widely used in various industries, and has begun to gradually replace traditional communication schemes due to its great advantages in communication bandwidth, delay, reliability, etc. With the rapid increase of users and loading capacity, the interconnection of optical fiber connections in the core switching node, especially in the fields of data centers, core switches, and the like, has grown in a massive manner. The existing optical fiber connection scheme faces huge bottleneck, and a large number of optical fibers are connected in a limited rack and a limited cabinet, so that the management and the use are greatly difficult, and meanwhile, the reliability, the maintenance and the component replacement of the whole system are also difficult.
Disclosure of Invention
The invention provides a combination device of a planar optical waveguide and a multi-core optical fiber connector, aiming at the problem that the mass optical fiber connection cannot be solved by the optical fiber interconnection technology in the fields of data centers, core switches and the like.
The technical scheme for realizing the purpose is as follows:
a combination planar lightwave circuit and multi-fiber connector comprising: at least one multi-core optical fiber connector, at least one optical fiber array connector and at least one planar optical waveguide chip,
the multi-core optical fiber connector is connected with one or more optical fiber array connectors through interconnected optical fibers;
and each optical fiber array connector is in optical coupling connection with the corresponding optical path in the planar optical waveguide chip.
Preferably, the planar optical waveguide chip integrates an optical splitter, a combiner and/or an optical coupler.
Preferably, a plurality of the planar optical waveguide chips are connected in series or in parallel through an optical fiber array assembly;
the optical fiber array component comprises two groups of optical fiber array connector groups, and each group of optical fiber array connector groups comprises at least one optical fiber array connector;
the optical fiber array connectors in one group of optical fiber array connector groups are connected with one or more optical fiber array connectors in another group of optical fiber array connector groups through interconnected optical fibers.
Preferably, the optical fiber array connector is connected to any side end surface of the planar optical waveguide chip.
Preferably, the multi-fiber connector is connected with an external system.
The invention has the beneficial effects that: the planar optical waveguide chip and the multi-core optical fiber connector are combined with each other, and optical paths are connected in layers through a planar optical waveguide technology, so that the staggered interconnection of the optical paths can be realized; the interlayer adopts a connection scheme of an optical fiber array component or a multi-core optical fiber connector, and the interconnection between chips can be realized between the layers; meanwhile, the multi-core optical fiber connector can be quickly connected with an external system in a high density mode, and management and maintenance are facilitated. Not only has the advantages of high-efficiency plugging and unplugging of the multi-core optical fiber connector, easy management and maintenance and the like, but also has the advantages of function integration, high channel density, high reliability and the like of the planar optical waveguide chip
Drawings
FIG. 1 is a block diagram of a combination planar optical waveguide and multi-fiber connector of the present invention;
FIG. 2 is a schematic diagram of the internal optical path of the planar lightwave circuit chip according to the present invention;
FIG. 3 is a schematic diagram of multiple planar lightwave circuit chip connections according to the present invention;
FIG. 4 is a schematic view of a fiber array assembly of the present invention;
FIG. 5 is a schematic diagram of a side-connected planar optical waveguide chip of an optical fiber array connector according to the present invention
Fig. 6 is a schematic diagram of two-dimensional spatial light path interconnection in the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1-6, the combination device of planar optical waveguide and multi-fiber connector of the present invention is an optical interconnection system integration technology combining planar optical waveguide technology and multi-fiber connector technology. The cross interconnection of light paths is realized inside a single-layer chip by adopting the traditional planar optical waveguide technology; optical path interconnection among the planar optical waveguide chips is realized by adopting a multi-core optical fiber connector or an optical fiber array component; it is the fundamental principle of the present invention to achieve high density connections with external systems using multi-fiber connectors.
As shown in fig. 1, the combined apparatus of the present invention comprises: the optical fiber connector comprises at least one multi-core optical fiber connector 1, at least one optical fiber array connector 3 and at least one planar optical waveguide chip 4. The multi-core optical fiber connector 1 is connected with one or more optical fiber array connectors 3 through interconnected optical fibers 2; each optical fiber array connector 3 is in optical coupling connection with the corresponding optical circuit in the planar optical waveguide chip 4. Namely: one end of the multi-core optical fiber connector 1 can be connected with an external system, and the other end of the multi-core optical fiber connector can be connected with a plurality of planar optical waveguide chips 4 by using the interconnection optical fiber 2, so that the optical path interconnection of the cross-chip is realized. The channel spacing between the optical fiber array connector 3 and the planar optical waveguide chip 4 adopts the conventional spacing of 127um or 250 um.
The planar optical waveguide chip 4 is adopted to replace the original complex structure of optical fiber interconnection. The optical path crossing, the position translation, the optical path interconnection and the like can be realized in the planar optical waveguide structure, and the original optical fiber direct connection scheme can be completely replaced in function. Meanwhile, in the planar optical waveguide chip, the optical path design is relatively free: various optical devices such as an optical splitter, a wave combiner, an optical coupler and the like can be integrated into a planar optical waveguide chip, so that the integration of complex functions is realized. As shown in fig. 2, the basic functions of optical path direct connection, optical path crossing, and optical splitting power are realized in the planar optical waveguide chip. This scheme has a great advantage over the direct fiber connection scheme.
The plurality of planar optical waveguide chips 4 are connected in series or in parallel through the optical fiber array assembly. As shown in fig. 3, the multi-level planar optical waveguide chip 4 can be connected by using a fiber array component, and this component can implement optical path interconnection across the chip. Fig. 4 is a schematic diagram of an optical fiber array assembly, in which the interconnection optical fibers 2 are manufactured into an optical fiber array with a fixed pitch according to a specific design sequence, and the optical fiber array can be optically interconnected with different planar optical waveguide chips. The optical fiber array component comprises two groups of optical fiber array connector groups, and each group of optical fiber array connector group comprises at least one optical fiber array connector 3; the optical fiber array connectors 3 in one optical fiber array connector group are connected with one or more optical fiber array connectors 3 in another optical fiber array connector group through the interconnection optical fibers 2. The optical fiber spacing of the optical fiber array component usually adopts a conventional spacing of 127um or 250um, and can also be specially customized according to the design spacing of the planar optical waveguide chip, so that the degree of freedom is high.
The connection position of the optical fiber array connector 3 and the planar optical waveguide chip 4 can be various, and the connection can be performed at two ends or in other directions. Fig. 5 shows the manner of connecting the optical fiber array from the side of the planar optical waveguide, which can make full use of the side space. Fig. 6 shows that cross-connection of optical paths between a plurality of multi-core optical fiber connectors 1 is realized in a two-dimensional plane to improve system integration and design freedom. Similarly, the multilayer planar optical waveguide chip 4 is matched with a cross-layer optical fiber array component (fig. 4), so that the system in fig. 6 can be further overlapped and expanded, and multilayer three-dimensional spatial optical path interconnection is realized.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (5)
1. A combination planar lightwave circuit and multi-fiber connector comprising: at least one multi-core optical fiber connector, at least one optical fiber array connector and at least one planar optical waveguide chip,
the multi-core optical fiber connector is connected with one or more optical fiber array connectors through interconnected optical fibers;
and each optical fiber array connector is in optical coupling connection with the corresponding optical path in the planar optical waveguide chip.
2. The combination of a planar optical waveguide and a multi-fiber connector according to claim 1, wherein the planar optical waveguide chip is integrated with an optical splitter, combiner and/or optical coupler.
3. The combination of planar lightwave circuit and multi-fiber connector as claimed in claim 1, wherein a plurality of said planar lightwave circuit chips are connected in series or in parallel by a fiber array module;
the optical fiber array component comprises two groups of optical fiber array connector groups, and each group of optical fiber array connector groups comprises at least one optical fiber array connector;
the optical fiber array connectors in one group of optical fiber array connector groups are connected with one or more optical fiber array connectors in another group of optical fiber array connector groups through interconnected optical fibers.
4. The combination of planar optical waveguide and multi-fiber connector as claimed in claim 1 or 3, wherein the optical fiber array connector is connected to any side end surface of the planar optical waveguide chip.
5. The combination planar lightwave circuit and multi-fiber connector of claim 1 wherein said multi-fiber connector is connected to an external system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111507737.9A CN114089479A (en) | 2021-12-10 | 2021-12-10 | Combination device of planar optical waveguide and multi-core optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111507737.9A CN114089479A (en) | 2021-12-10 | 2021-12-10 | Combination device of planar optical waveguide and multi-core optical fiber connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114089479A true CN114089479A (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111507737.9A Pending CN114089479A (en) | 2021-12-10 | 2021-12-10 | Combination device of planar optical waveguide and multi-core optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114089479A (en) |
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2021
- 2021-12-10 CN CN202111507737.9A patent/CN114089479A/en active Pending
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