CN113433633B - Optical cross-connect unit, connector adapting unit and optical fiber connecting device - Google Patents
Optical cross-connect unit, connector adapting unit and optical fiber connecting device Download PDFInfo
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- CN113433633B CN113433633B CN202010208858.2A CN202010208858A CN113433633B CN 113433633 B CN113433633 B CN 113433633B CN 202010208858 A CN202010208858 A CN 202010208858A CN 113433633 B CN113433633 B CN 113433633B
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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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
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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
- G02B6/35—Optical coupling means having switching 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
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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
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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
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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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
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Abstract
The embodiment of the application provides an optical cross connection unit, a connector adapting unit and optical fiber connection equipment. In the embodiment of the application, a connector adaptation unit is provided for each path of heterogeneous optical fiber connector, the heterogeneous optical fiber connectors are in adaptation connection with each path of heterogeneous optical fiber connector through different connector adaptation units, and further the optical cross-connect unit is connected with different connector adaptation units, so that optical fiber interconnection among different connector adaptation units is realized, the purpose of optical fiber interconnection of each path of heterogeneous optical fiber connector is further achieved, the interconnection problem among the heterogeneous optical fiber connectors is solved, various heterogeneous optical fiber connectors can be used in open heterogeneous ROADM sites, and the implementation of the heterogeneous ROADM sites is facilitated to be simplified.
Description
Technical Field
The present application relates to the field of optical communications technologies, and in particular, to an optical cross-connect unit, a connector adapting unit, and an optical fiber connection apparatus.
Background
A Reconfigurable Optical Add-Drop Multiplexer (ROADM) site is a site in an Optical transmission network, and its internal Optical path module usually contains at least one line side module, on which the Add/Drop of Optical channels can be completed, and the cross scheduling of wavelength levels between different directions of the site.
In a ROADM site, as the number of local add-drop modules and/or line-side modules (e.g., WSSs) increases, the fiber connections between line-side modules and local add-drop modules will be very complex. In order to simplify the Fiber connection relationship between optical path modules in a ROADM site, the conventional method is that each optical path module adopts a high-integration optical Fiber connector, and an optical Fiber port in each optical path module is connected to an optical Fiber connection box (Fiber shuffle) by the optical Fiber connector; and realizing the optical Fiber interconnection among the optical Fiber ports in the Fiber shuffle.
In an open decoupled optical transport network, the ROADM sites may be heterogeneous, i.e. the optical path modules in the ROADM sites are provided by different vendors. The number, types and Fiber arrangement sequence of the optical Fiber connectors used by different manufacturers are inconsistent, but the number, types and Fiber arrangement sequence of the optical Fiber connectors required by the existing Fiber shuffle are consistent, so that the existing Fiber shuffle cannot be directly used in the heterogeneous ROADM sites.
Disclosure of Invention
The embodiment of the application provides an optical cross connection unit, a connector adapting unit and optical fiber connection equipment, which are used for solving the problem of optical fiber interconnection among heterogeneous optical fiber connectors.
The embodiment of the application provides an optical fiber connecting device for carry out optic fibre interconnection to M way isomerism fiber connector, equipment includes: the optical cross connection unit and M connector adapting units, wherein M is a natural number more than or equal to 2; the connector adapting unit is used for being in adaptive connection with a fiber connector; and the optical cross connection unit is optically connected with the M connector adapting units and is used for realizing the optical fiber interconnection among the M connector adapting units.
The embodiment of the application also provides an optical cross connection unit, which comprises a back plate, wherein the back plate is provided with N slot positions, and each slot position is used for being connected with one connector adapting unit in a pluggable manner; each slot position is provided with at least one optical fiber port, and the optical fiber ports in the N slot positions are interconnected in an optical fiber interconnection mode; wherein N is a natural number of 2 or more.
The embodiment of the application also provides a connector adapting unit, which comprises an adapting board card; one side of the adapter board card is provided with a slot connector, and the other side of the adapter board card is provided with at least one adapter component; the slot connector is used for being connected with one slot in the optical cross connection unit in a pluggable manner, and the at least one adapting component is in adaptive connection with one path of optical fiber connector; and realizing the conversion of the optical fiber port and/or the fiber arrangement sequence between the at least one adapter component and the slot connector in the adapter board card.
An embodiment of the present application further provides an optical fiber connection device, configured to perform optical fiber interconnection on M optical path modules in a ROADM site, where the device includes: the optical cross connection unit and M connector adapting units, wherein M is a natural number more than or equal to 2; the connector adapting unit is used for being adapted and connected with an optical fiber connector used by an optical path module; and the optical cross connection unit is optically connected with the M connector adapting units and is used for realizing the optical fiber interconnection among the M connector adapting units.
In the embodiment of the application, a connector adaptation unit is provided for each path of heterogeneous optical fiber connector, the heterogeneous optical fiber connectors are in adaptation connection with each path of heterogeneous optical fiber connector through different connector adaptation units, and further optical connection is performed between the optical cross-connect unit and different connector adaptation units, so that optical fiber interconnection between different connector adaptation units is realized, the purpose of performing optical fiber interconnection on each path of heterogeneous optical fiber connector is further achieved, the interconnection problem between heterogeneous optical fiber connectors is solved, various heterogeneous optical fiber connectors can be used in an open heterogeneous ROADM site, and the implementation of the heterogeneous ROADM site is facilitated to be simplified.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of an optical fiber connection device according to an exemplary embodiment of the present disclosure;
FIG. 2a is a schematic diagram of an optical cross-connect unit according to an exemplary embodiment of the present application;
fig. 2b is a schematic diagram illustrating an interconnection relationship among slots in an optical cross-connect unit according to an exemplary embodiment of the present application;
fig. 3a is a schematic diagram of a structure of a connector adapting unit provided in an exemplary embodiment of the present application;
FIG. 3b is a schematic diagram of an optical fiber connection relationship between an adapter module and a slot connector in a connector adapter unit according to an exemplary embodiment of the present disclosure;
FIGS. 4 a-4 c are schematic diagrams of adapter modules included in the adapter unit of the connector and the interconnection thereof with backplane slots according to exemplary embodiments of the present disclosure;
fig. 5a is a schematic diagram of a state of a 27-slot backplane according to an exemplary embodiment of the present disclosure;
FIG. 5b is a schematic diagram of a connector adapter unit corresponding to vendor X according to an exemplary embodiment of the present application;
FIG. 5c is a schematic diagram of a factory Y compliant connector adapter unit according to an exemplary embodiment of the present application;
fig. 5d shows the connection relationship between the optical fibers inside the adapter board card in the adapter unit of the connector corresponding to the manufacturer X and the interconnection relationship between the optical fibers and the slots on the backplane in the optical cross-connect unit;
fig. 5e shows a fiber connection relationship inside an adapter board card in a connector adapter unit corresponding to the manufacturer Y and an interconnection relationship with a slot position on a backplane in an optical cross-connect unit;
fig. 6 is a schematic diagram of several fiber jumper structures and their connection states provided in an exemplary embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the embodiment of the application, a connector adaptation unit is provided for each path of heterogeneous optical fiber connector, and is adaptively connected with each path of heterogeneous optical fiber connector through different connector adaptation units, and further optically connected with different connector adaptation units through an optical cross-connect unit, so that optical fiber interconnection among different connector adaptation units is realized, and further, the purpose of performing optical fiber interconnection on each path of heterogeneous optical fiber connector is achieved, the interconnection problem among heterogeneous optical fiber connectors is solved, various heterogeneous optical fiber connectors can be used in open heterogeneous ROADM sites, and the implementation of the heterogeneous ROADM sites is facilitated to be simplified.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an optical fiber connection apparatus according to an exemplary embodiment of the present application. As shown in fig. 1, the optical fiber connection apparatus 100 includes: an optical cross-connect unit 20 and M connector-adapting units 10; the optical cross-connect unit 20 and the M connector adapting units 10 are matched with each other, and can perform optical fiber interconnection on the M-path heterogeneous optical fiber connectors. Wherein M is a natural number of 2 or more.
First, a brief explanation will be given of the M-way heterogeneous fiber connector in the embodiment of the present application. For any optical fiber connector, it may include one optical fiber connector, and the number of the optical fiber connectors may be one or more. For example, one fiber optic connector contains only 1 or more MPO connectors. Also for example, a fiber optic connector may include only 1 or more pairs of LC connectors. Of course, any one optical fiber connector may also include a plurality of optical fiber connectors, and the number of each optical fiber connector may be one or more. For example, a one-way fiber optic connector includes one MPO connector and a plurality of pairs of LC connectors. For another example, a one-way fiber optic connector includes a plurality of MPO connectors and 1 pair of LC connectors. Further, the MPO connectors may use different fiber numbers and fiber sequencing. For example, taking a 12-core MPO connector as an example, some use cores numbered 1-12, and some use cores numbered 3-10; still taking the example of a 12-core MPO connector, there are fiber arrangement sequences in line order a, fiber arrangement sequences in line order B, and fiber arrangement sequences in line order C. In addition, for any two-way optical fiber connector, as long as at least one of the information of the type and the number of the included optical fiber connectors, the number of the optical fiber cores in the optical fiber connector, the fiber arrangement sequence and the like is different, it means that the two-way optical fiber connector is heterogeneous. For example, suppose a fiber connector includes 8 12-core MPO connectors, each MPO connector uses 3-10 cores (i.e. 4 pairs of fiber ports) inside, and there are 32 pairs of fiber ports in total; the other path of optical fiber connector comprises 3 12-core MPO connectors, 1-12 cores (namely 6 pairs of optical fiber ports) are used in each MPO connector, a total number of 18 pairs of optical fiber ports are provided, and the two paths of optical fiber connectors are heterogeneous.
In this embodiment, the term "heterogeneous" in the M-path heterogeneous fiber optic connectors mainly refers to the heterogeneous structure between different paths of fiber optic connectors, and may, of course, include the heterogeneous structure between the fiber optic connectors in the same path of fiber optic connectors. One path of optical fiber connectors corresponds to one connector adapting unit 10, and the number of the connector adapting units 10 can be flexibly determined according to the number of paths of heterogeneous optical fiber connectors which need to be interconnected. For example, if 3-way heterogeneous fiber connectors need to be interconnected, the number of the connector adapting units 10 is 3; if 2 paths of heterogeneous optical fiber connectors need to be interconnected by optical fibers, the number of the connector adapting units 10 is 2; if 16 heterogeneous fiber connectors need to be interconnected, the number of the connector adapting units 10 is 16; and so on.
In this embodiment, an example that M-way heterogeneous fiber connectors require optical fiber interconnection is taken as an illustration, and the source of the M-way heterogeneous fiber connectors is not limited. Respectively providing connector adapting units 10 for the M paths of heterogeneous optical fiber connectors, namely providing M connector adapting units 10; each connector adapter unit 10 is connected between one optical fiber connector and the optical cross-connect unit 20, that is, one end of each connector adapter unit 10 is adapted to be connected with one optical fiber connector, and the other end is optically connected with the optical cross-connect unit 20.
If one optical fiber connector comprises one optical fiber connector, the connector adapting unit 10 adapted to the optical fiber connector is adapted to the one optical fiber connector; if a fiber optic connector includes a plurality of fiber optic connectors, the connector adapting unit 10 adapted to connect with the fiber optic connector is adapted to connect with the plurality of fiber optic connectors. The adapting connection between the connector adapting unit 10 and the optical fiber connector can be understood as follows: the connector adapting unit can be optically connected with each optical fiber connector according to the interface mode supported by each optical fiber connector in the optical fiber connector.
Further, the M connector adapting units 10 are optically connected with the optical cross-connect unit 20, and the optical fiber interconnection among the M connector adapting units 10 is realized inside the optical cross-connect unit 20, so that the purpose of performing optical fiber interconnection on the M-path heterogeneous optical fiber connectors is achieved. Therefore, the interconnection problem among the heterogeneous optical fiber connectors is solved, various heterogeneous optical fiber connectors can be used in open heterogeneous ROADM sites, the reduction of the fiber connection relation inside the heterogeneous ROADM sites is facilitated, and the implementation of the heterogeneous ROADM sites can be simplified.
In the embodiment of the present application, the implementation structure of the optical cross-connect unit 20 is not limited. Fig. 2a is a schematic structural diagram of an optical cross-connect unit 20 according to an embodiment of the present disclosure. As shown in fig. 2a, the optical cross-connect unit 20 includes: a back plate 21; the back plate 21 is provided with N slots (slots) 22, wherein N is a natural number more than or equal to 1. These slots 22 are the interfaces for interconnecting the optical cross-connect unit 20 with the connector adapter unit 10. Alternatively, the slots 22 support a pluggable connection, and each slot 22 may be pluggable to one connector adapter unit 10.
It should be noted that, in this embodiment, the number of the slots 22 formed in the back plate 21 is not limited, and can be flexibly set according to needs. In addition, there is no necessary link between the number of slots 22 and the number of connector adapter units 10 included in the fiber optic connection apparatus 100. For example, if the number of paths of the optical fiber connectors that need to be interconnected by optical fibers can be determined in advance, the number of the connector adapting units 10 and the number of the slots 22 that need to be opened on the back plate 21 can be determined according to the number of paths, so as to obtain the customized optical fiber connection device 100 meeting the requirement. For another example, the number of slots may be normalized according to industry standards, experience, or deployment requirements of an optical transmission network, so as to obtain the optical fiber connection apparatus 100 or the optical cross-connect unit 20 including different numbers of slots, for example, the optical fiber connection apparatus 100 or the optical cross-connect unit 20 including 5 slots, 10 slots, 16 slots, 32 slots, or 27 slots may be produced. Regardless of the manner of determining the number of slots, the number of connector adapter units 10 included in the fiber optic connection device 100 should not exceed the number of slots included therein, i.e., N ≧ M should be satisfied.
Further, each slot 22 has at least one fiber port, not shown in the drawings. Alternatively, different slots 22 may have the same number of fiber ports, the same slot structure, and the same slot configuration, thereby achieving a standardized interface configuration. The number of fiber ports included in each slot 22 is not limited, and can be flexibly determined according to the optical interconnection requirement and the specific scenario. For example, each slot 22 may contain 10, 20, 24, 32, or 48 fiber ports. Each fiber port is connectable to a fiber, and each slot 22 includes a number of fiber interfaces, i.e., the number of cores that can be interconnected in the slot.
The optical fiber ports in the N slot positions 22 are interconnected by optical fibers according to a set optical fiber interconnection manner, so that the connector adapting units 10 inserted into different slot positions 22 are interconnected in a corresponding manner. For the optical fiber connection apparatus 100 shown in fig. 1, M connector adapter units 10 included therein are pluggable to M slots 22, so as to implement optical fiber interconnection among the M connector adapter units 10 by means of optical fiber interconnection among the M slots 22; here, the M slots 22 may be a part of the N slots 22 or all of the N slots 22. In this embodiment, the optical fiber interconnection manner among the optical fiber ports in the N slots 22 is not limited, and may be flexibly set according to the application scenario and the interconnection requirement. For example, the N slots 22 may all be optically connected to each other; or, a part of the slots 22 may be optically connected with each other, and another part of the slots 22 may be optically connected with the former part of the slots 22, but another part of the slots are not connected; alternatively, optical connections may be made from slot to slot, and so forth. For two slots 22 that are optically connected, the optical connection between the two slots may include connections in two directions for optical signal transceiving, which means that the two slots 22 may be correspondingly connected by a pair of optical fiber ports (i.e., two optical fiber ports), and then optical signal transceiving may be performed between the two slots 22.
In the embodiment of the present application, the source of the M-channel heterogeneous optical fiber connector is not limited, and the M-channel heterogeneous optical fiber connector may be two or more optical fiber connectors that need to perform optical fiber interconnection in any optical transmission network. In an alternative embodiment, with the development of an open heterogeneous optical transmission network, open heterogeneous ROADM sites may appear in the optical transmission network, where the heterogeneous ROADM sites refer to optical path modules in the ROADM sites that may be provided by different manufacturers, and the types, numbers, and fiber arrangement orders of optical fiber connectors used by the optical path modules may be different. In this alternative embodiment, the M-way heterogeneous fiber optic connectors may be from heterogeneous ROADM sites, i.e., the fiber optic connectors used by the line-side modules and/or the local add/drop modules in the heterogeneous ROADM sites constitute the M-way heterogeneous fiber optic connectors. It should be noted that, in the embodiment of the present application, the optical path module in the heterogeneous ROADM site is a generic name for the local add/drop module and the line side module in the heterogeneous ROADM site, and the optical path module may be the local add/drop module in the heterogeneous ROADM site or the line side module in the heterogeneous ROADM site. Furthermore, the local Add/Drop module (A/D) can be divided into a local Add/Drop module (directive less A/D module) with a non-fixed direction and a local Add/Drop module (directive A/D module) with a fixed direction. The optical fiber connector used by one line side module in the heterogeneous ROADM site forms one path of the M-path heterogeneous optical fiber connectors; or, the optical fiber connector used by one line side module and one or more directional A/D modules in the heterogeneous ROADM site forms one path of the M-path heterogeneous optical fiber connectors; or, the optical fiber connectors used by several directional A/D modules in the heterogeneous ROADM site form one of the M paths of heterogeneous optical fiber connectors; or, the optical fiber connector used by one directive less A/D module in the heterogeneous ROADM site forms one of the M paths of heterogeneous optical fiber connectors. In addition, in the embodiment of the present application, the number of local add-drop modules and line-side modules in the heterogeneous ROADM site is not limited. A heterogeneous ROADM site may contain one or more local add/drop modules, and similarly, may contain one or more line-side modules.
In the above optional embodiment, in the heterogeneous ROADM site, different manufacturers may access optical path modules provided by the manufacturers to optical fiber connectors respectively used to simplify a fiber connection relationship between the optical path modules, and then the optical fiber connectors used by the manufacturers are connected to the optical fiber connection device 100 provided in the embodiment of the present application to implement optical fiber interconnection between the heterogeneous optical fiber connectors, specifically, the optical fiber connectors used by the optical path modules are respectively optically connected to one connector adapting unit 10 in the optical fiber connection device 100, the connector adapting unit 10 is plugged into the slot 22 in the optical cross-connect unit 20, and optical interconnection between the optical fiber connectors used by the optical path modules is implemented by means of the optical connection relationship between the slot 22, so as to implement optical interconnection between the optical path modules, thereby solving the optical interconnection problem between the heterogeneous optical fiber connectors, and indirectly solving the optical interconnection problem between the heterogeneous optical path modules in the heterogeneous ROADM site, and the fiber connection relation inside the heterogeneous ROADM site can be simplified, and the realization of the heterogeneous ROADM is facilitated.
Further, according to different optical path module types in the ROADM site, the connector adapting units in the embodiment of the present application may be divided into two categories, i.e., a first category connector adapting unit and a second category connector adapting unit. The first type of connector adapting unit is a connector adapting unit which is used for being adaptively connected with an optical fiber connector used by a line side module and/or a directive A/D module in a heterogeneous ROADM site; the second type of connector adapting unit is a connector adapting unit for adapting and connecting with an optical fiber connector used by a Directionless a/D module in the ROADM station.
Based on the above-described classification of connector mating units, the N slots 22 in the optical cross-connect unit 20 may be classified accordingly or used in a classified manner. For example, the N slots 22 in the optical cross-connect unit 20 may include N1 slots for connecting a first type of connector mating unit. Wherein N1 is a natural number not less than 1, and N1 is not more than N. If N1 < N, this indicates that some of the N slots 22 in the optical cross-connect unit 20 are for connection to a first type of connector adapter unit; if N1 is equal to N, it means that all of the N slots 22 in the optical cross-connect unit 20 are used for connecting the first type of connector adapter unit, i.e., no slots are included for connecting the second type of connector adapter unit. For any one of the first type of connector adapter units, any one of the (N1) slots may be used.
Further, in the case of N1 < N, N2 slots for connecting the second type of connector adapter units may also be included in the N slots 22 in the optical cross-connect unit 20. Wherein N2 is a natural number not less than 1, and N1+ N2 is not more than N. If N1+ N2 is equal to N, it means that all of the N slots 22 in the optical cross-connect unit 20 are used, some for connecting the first type of connector adapter unit, and some for connecting the second type of connector adapter unit. If N1+ N2 < N, it means that N slots 22 in the optical cross-connect unit 20 are not all used, some for connecting the first type of connector adapter unit, some for connecting the second type of connector adapter unit, and some spare slots. The use of these spare slots is not limited, and other connector adapting units which are newly appeared later can be connected. Any one of the N2 slots may be used for any one of the second type connector mating units.
It should be noted that the N slots 22 may be classified or used according to the above-mentioned manner, or the N slots 22 may not be classified or used, that is, all slots 22 are the same without distinction. According to the classification of the slots or the classification use condition, the interconnection mode of the optical fiber ports among the slots is different. For example, if N slots 22 in the optical cross-connect unit 20 are all used to connect the first type of connector adapter unit, i.e., N1 ═ N, then all of the N (or N1) slots 22 are optically connected to each other to form a full Mesh network, as shown in fig. 2 b. In fig. 2b, N SLOTs 22 are denoted as SLOT _1, SLOT _2, SLOT _3, SLOT _4, SLOT _5, SLOT _6, … …, and SLOT _ N, and two fiber ports in each two SLOTs are connected by two fibers, i.e., a fiber-to-fiber bidirectional connection is used. Thus, when the fiber optic connectors used by the line side modules in the ROADM site are plugged into the slots 22 via the first type of connector adapter element, optical connections are made between the line side modules. If some of the N slots 22 in the optical cross-connect unit 20 are used to connect the first type of connector adapter unit and some are used to connect the second type of connector adapter unit, that is, if N1+ N2 is not greater than N, then all of the N1 slots are optically connected to each other to form a full Mesh network; each of the N2 slots for connecting the second type of connector mating unit is optically connected to the N1 slots for connecting the first type of connector mating unit. Thus, when the fiber optic connectors used by the line-side modules in the ROADM site are plugged into the slots of the N1 slots 22 through the first type of connector adapter unit, and the fiber optic connectors used by the local add-drop modules in the non-fixed direction are plugged into the slots of the N2 slots 22 through the second type of connector adapter unit, optical connections are made between the line-side modules and the local add-drop modules in the non-fixed direction.
Further alternatively, considering that there is no need for optical connection between the local add-drop modules and the local drop modules in an unfixed direction, N2 slots for connecting the second type of connector adapting units may not be connected, which may reduce the number of optical fiber connections and the complexity of optical fiber connections. Of course, the N2 slots used to connect the second type of connector mating unit may be all optically connected or partially optically connected, as desired. Where, in the case of the mutual optical connection between the N2 slots for connecting the second type of connector adapter unit, this means that the fiber ports between the N1+ N2 slots are all mutually optically connected, which results in a full Mesh network between the N1+ N2 slots. In this case, if one or more slots for connecting the second type of connector adapter units are in an idle state, the idle slots can be used to connect the first type of connector adapter units, so as to increase the flexibility of optical fiber interconnection.
Accordingly, in the case of sorting the connector adaptation units, different types of connector adaptation units may be included in the optical fiber connection apparatus 100. For example, M1 first-type connector adapter units may be included in the M connector adapter units 10 included in the optical fiber connection apparatus 100, M1 is a natural number ≧ 1, and M1 ≦ M. If M1 < M, it indicates that some of the M connector adapter units 10 are connector adapter units of the first type; if M1 is equal to M, it means that all of the M connector adapter units 10 are the first type of connector adapter unit, i.e., the second type of connector adapter unit is not included.
Further, in the case of M1 < M, M2 second-type connector adapter units may also be included in the M connector adapter units 10. Wherein M2 is a natural number not less than 1, and M1+ M2 is not more than M. If M1+ M2 is equal to M, it means that all of the M connector adapter units 10 are the first type connector adapter unit and the second type connector adapter unit. If M1+ M2 < M, it means that the M connector adapter units 10 may include other types of connector adapter units in addition to the first type of connector adapter unit and the second type of connector adapter unit. There is no limitation with respect to other types of connector adapter units.
In the embodiments of the present application, the implementation structure of the connector adapting unit is not limited. Fig. 3a is a schematic structural diagram of a connector adapter unit 10 according to an embodiment of the present disclosure. As shown in fig. 3a, the connector adapting unit 10 includes: an adapter board card 11; one side of the adapter board card 11 is provided with a slot connector 12 which is connected with a slot 22 on the back plate 21 shown in fig. 2a in a pluggable manner; the other side of the adapter board card 11 is provided with at least one adapter assembly 13 which is in adapter connection with a fiber connector; in the adapter card 11, the conversion of the optical fiber port and/or the fiber arrangement order between at least one adapter component 13 and the slot connector 12 is realized. The optical fiber connection relationship between at least one adapter element 13 and the slot connector 12 in the adapter card 11 is shown in fig. 3 b. In fig. 3b, Port _1, Port _2, Port _3, … …, and Port _ m denote m adapter elements 13, specifically, the interfaces of the m adapter elements 13, where m is a natural number equal to or greater than 1, and these interfaces are optically connected to the slot connector 12 via optical fibers. As shown in fig. 3b, the number of optical fiber cores supported by different adapter modules 13 is different, and the fiber arrangement sequence supported by different adapter modules 13 is different, which is not shown in fig. 3 b. Further, as shown in fig. 3b, the SLOT connector 12 may be inserted into one SLOT on the optical cross-connect unit 20, and in fig. 3b, the SLOT connector 12 is inserted into the SLOT _1 as an example, but is not limited thereto.
In this embodiment, the number of the adapting units 13 on the adapting board 11 is not limited, and may be determined according to the condition of a fiber optic connector adapted and connected to the connector adapting unit 10. In this embodiment, the type and number of the optical fiber connectors included in each of the M heterogeneous optical fiber connectors are not limited. For example, each fiber optic connector may include one or more fiber optic connectors, and the number of each fiber optic connector is one or more. In view of this, the adapting unit 13 disposed on the other side of the adapting board 11 in the embodiment may include one or more adapting units of optical fiber connectors, and the number of the adapting units of each optical fiber connector is one or more, which may be determined by the type and number of the optical fiber connectors included in one optical fiber connector connected by the connector adapting unit 10. Taking heterogeneous ROADM sites as an example, the following describes, with reference to fig. 4a to 4c, an exemplary case of the adapter component 13 included in the connector adapter unit 10 and a state of the adapter component being plugged into a backplane slot.
In an optional embodiment of the present application, it is assumed that a heterogeneous ROADM site includes 3 line-side modules, a Directionless a/D module, and 3 Directioned a/D modules, and optionally, in these line-side modules and local add/drop modules, Wavelength Selective Switches (WSSs) may be used for both directions of optical signal transceiving. The line side modules and the local add-drop modules are from different manufacturers, and the different manufacturers use different optical fiber connectors to connect the WSSs to the optical fiber connection device of the embodiment to realize optical fiber interconnection. It is assumed that the first line side module (corresponding to the line direction 1) uses 4 MPO connectors with the fiber arrangement order a, the second line side module (corresponding to the line direction 2) uses 3 MPO connectors with the fiber arrangement order a, the third line side module (corresponding to the line direction 3) uses 3 MPO connectors with the fiber arrangement order B, the Directionless a/D module uses 2 MPO connectors with the fiber arrangement order C, and the 3 directiond a/D modules use 3 pairs of LC connectors (i.e., 1 pair of LC connectors is used for 1 directiond a/D module).
Accordingly, as shown in fig. 4a, the fiber optic connection device 100 includes 3 connector adaptation units 101 and 103 corresponding to the 3 line-side modules; the connector adapting unit 101 corresponding to the first line side module comprises 4 MPO adapting assemblies 101a with a fiber arrangement sequence A, and the 4 MPO adapting assemblies 101a are respectively interconnected with 4 MPO connectors with the fiber arrangement sequence A used by the first line side module; the connector adapter unit 102 corresponding to the second line side module comprises 3 MPO adapter assemblies 101a with the fiber arrangement sequence of a, and the 3 MPO adapter assemblies 101a are respectively interconnected with the 3 MPO connectors with the fiber arrangement sequence of a used by the second line side module; the connector adapter unit 103 corresponding to the third line side module includes 3 MPO adapter modules 103a with fiber arrangement order B, and the 3 MPO adapter modules 103a are respectively interconnected with the 3 MPO connectors with fiber arrangement order B used by the third line side module. Further, as shown in fig. 4b, the optical fiber connection apparatus 100 further includes a connector adapting unit 104 corresponding to the Directionless a/D module; the connector adapting unit 104 corresponding to the Directionless a/D module includes 2 MPO adapting components 104a with fiber arrangement sequence C, and the 2 MPO adapting components 104a are respectively interconnected with 2 MPO connectors with fiber arrangement sequence C used by the Directionless a/D module. Further, as shown in fig. 4c, the fiber optic connection apparatus 100 further includes a connector adapting unit 105 corresponding to the 3 directive a/D modules; the connector adapting unit 105 corresponding to the 3 directive A/D modules comprises 3 LC adapting components 105a, and each LC adapting component 105a is interconnected with a pair of LC connectors used by one directive A/D module; in which a pair of LC connectors are connected to a fixed line direction (i.e., a directional a/D module), so that LC adapters interconnected with a pair of LC connectors can be connected to a fixed line direction, but 3 LC adapters can be connected to different line directions. Fig. 4a to 4c also show the back plate 21 and the slot 22, and reference is made to the description of the foregoing embodiments for these structures.
As can be seen from fig. 4a to 4c, the connector adapting unit corresponding to each optical circuit module can be inserted into any slot of the optical cross-connect unit 20. Certainly, in the case of classifying the slot positions and the connector adapting units on the optical cross-connect unit 20, the connector adapting units corresponding to the optical path modules may be plugged into the corresponding types of slot positions, for example, the connector adapting units corresponding to the line side modules belong to the first type of connector adapting units, and may be plugged into the slot positions for connecting the first type of connector adapting units; for another example, the connector adapting unit corresponding to the Directionless a/D module belongs to the second type connector adapting unit, and can be plugged into the slot for connecting the second type connector adapting unit. As can be seen from the above description, for each first type of connector adapter unit, the adapter card may separately include an adapter component for adapting and connecting with the optical fiber connector used by the line side module, as shown in fig. 4a, or may also include an adapter component for adapting and connecting with the optical fiber connector used by the line side module and an adapter component for adapting and connecting with the optical fiber connector used by the directeda/D module, as shown in the following fig. 5b and 5D; alternatively, an adapter assembly for adapting connection with a fiber optic connector used with a directional A/D module may be included separately, as shown in FIG. 4 c. Accordingly, for each second type connector adapter unit, the adapter card may individually include an adapter component for adapting and connecting with the optical fiber connector used by the Directionless a/D module, as shown in fig. 4 b.
No matter which type of connector adaptation unit, each adaptation subassembly on its adaptation integrated circuit board 11 contains the fiber port in for carry out optical fiber interconnection with the fiber port in the slot plug connector, wherein, an optical fiber is connected to a fiber port. In the embodiment of the present application, a relationship between the sum of the numbers of the optical fiber ports in at least one adapter component on the adapter card 11 and the total number of the optical fiber ports in the slot connector is not limited, and the two numbers may be the same or different. Under different conditions, the sum of the number of the optical fiber ports in at least one adapter assembly on the adapter board card 11 may be greater than the total number of the optical fiber ports in the slot connector; or, the sum of the number of the optical fiber ports in at least one adapter component on the adapter board 11 may also be smaller than the total number of the optical fiber ports in the slot connector, which is specifically determined according to the actual design and application requirements. In view of this, the corresponding relationship between the optical fiber ports in the adapter components on the adapter board 11 and the optical fiber ports in the slot connectors when they are interconnected may be in various situations, which is illustrated below by way of example:
case 1: part of the optical fiber ports in at least one adapter component on the adapter board 11 are interconnected with at least part of the optical fiber ports (including part or all of the two cases) in the slot connector, and the other part of the optical fiber ports in at least one adapter component on the adapter board 11 is vacant. An example of case 1 is shown in fig. 5 e.
Case 2: part of optical fiber ports in at least one adapting assembly on the adapting board card 11 are interconnected with at least part of optical fiber ports in the slot connector, and the other part of optical fiber ports in at least one adapting assembly on the adapting board card 11 is connected with at least one pair of LC connectors arranged on the other surface (namely the surface where the adapting assembly is located) of the adapting board card 11; in this way, excess fiber ports can be connected out through the LC connector for other uses. An example of case 2 is shown in fig. 5 d. In FIG. 5D, the LC connectors are used to connect the Directioned A/D modules, and the fiber ports on the LC connectors' corresponding adapter modules LC-X9 are used to interconnect the LC connectors used by the Directioned A/D modules.
Case 3: all the optical fiber ports in at least one adapter component on the adapter board card 11 are interconnected with at least part of the optical fiber ports in the slot connector.
The optical fiber connection device and the use thereof provided in the above embodiments of the present application will be described in detail with reference to a specific example. As shown in fig. 5a, an optical cross-connect unit in an optical fiber connection device provided in an embodiment of the present application includes 27 slots, which are slot-1 to slot-27, respectively. The slot slots-1 to slot-9 are all connected (full Mesh), the slot slots-10 to slot-27 are respectively connected with the slot slots-1 to slot-9, but the slot slots-10 to slot-27 are not connected with each other. In this embodiment, each slot is formed using at least one first MT blind insert, and the fiber ports of the at least one first MT blind insert form the fiber ports in the slot. In this embodiment, there are 27 slots in total, and 27 slots at most are available, and each slot can be connected with 26 other slots by using fiber pairs at most, which means that there are 26 fiber pairs (i.e. 52 fibers) in each slot at most. Based on this, 5 first MT blind inserts of 12 cores per slot can be used, forming a slot with 60 fiber ports.
The slot-1 to slot-9 are used to connect the first type of connector adaptation unit, that is, used to interconnect optical fibers between line side modules, and optionally, the slot-9 may be used as a spare slot, so that only the slot-1 to slot-8 are illustrated in fig. 5d and 5 e; the slot positions slot-10 to slot-27 are used for connecting the second type connector adapting unit, namely, used for interconnecting optical fibers between the local upper and lower line modules and the line side module.
Suppose that the optical fiber connection device provided in this embodiment is applied to a heterogeneous ROADM site, where the heterogeneous ROADM site includes line-side modules provided by manufacturer X (1X32) and manufacturer Y (1X20), and a directive a/D module provided by manufacturer X; the line side module provided by the manufacturer X is connected by adopting 8 MPO connectors, and the directive A/D module provided by the manufacturer X is connected by adopting 1 pair of LC connectors; the line side module provided by manufacturer Y uses 3 MPO connectors and 2 pairs of LC connectors for connection. Based on this, for the manufacturer X, a connector adapter unit with 8 MPO adapter modules and 1 LC adapter module at the front end may be designed, as shown in fig. 5 b; the system comprises a line side module, 8 MPO adapter assemblies, 1 pair of LC adapter assemblies and a directional A/D module, wherein the 8 MPO adapter assemblies are used for being interconnected with 8 MPO connectors used by the line side module, and the 1 pair of LC adapter assemblies are used for being interconnected with 1 pair of LC connectors used by the directional A/D module. A connector adapter unit with a front end containing 3 MPO adapter modules and 2 LC adapter modules may be designed for manufacturer Y, as shown in fig. 5 c; wherein, 3 MPO adapter subassemblies are used for interconnecting with 3 MPO connectors that line side module used, and 2 LC adapter subassemblies are used for interconnecting with 2 pairs of LC connectors that line side module used. Furthermore, the slot connectors of the two connector adapting units are realized by adopting second MT blind connectors, each slot connector comprises at least one second MT blind connector, and the optical fiber ports of the at least one second MT blind connector form the optical fiber ports of the slot connectors. In this embodiment, the number of the second MT blind plugs included in each slot connector is not limited, and for example, 6 12-core second MT blind plugs may be used to form a slot connector having 72 optical fiber ports. The first MT blind card is adapted to the second MT blind card, for example, a male plug of the MT blind card and a female plug of the MT blind card.
Fig. 5d shows the connection relationship between the connection fibers inside the adapter board card in the connector adapter unit corresponding to the manufacturer X and the interconnection relationship between the connection fibers and the slots on the backplane in the optical cross-connect unit. As shown in fig. 5d, the connector adapting unit corresponding to the manufacturer X includes 8 MPO adapting components, which are MPO-X1, MPO-X2, MPO-X3, … … and MPO-X8, respectively, 1 LC adapting component LC-X9, and a slot connector formed by 6 MT blind connectors; the 6 MT blind inserts are MT-X1, MT-X2, MT-X3, MT-X4, MT-X5 and MT-X6 respectively. Since the optical cross-connect unit has only 27 slots at most, the manufacturer X can use 27 line dimensions through 27 slots at most, which means that the slot connectors need to provide 52 fibers, 1 MT blind plug 12 core, and 5 MT blind plugs MT-X1-MTX5, so the MT-X6 can be left empty. In FIG. 5d, the connector adapter unit corresponding to the manufacturer X is inserted into slot-1. In addition, since the LC adapter LC-X9 is interconnected with 1 pair of LC connectors used by the directional a/D module, it only needs to be interconnected with one line direction, in this embodiment, the LC adapter LC-X9 is interconnected with the line side module (i.e. the line direction of the local end) provided by the manufacturer X, so the LC adapter LC-X9 only needs to be interconnected with any one of MPO-X1 to MPO-X8, and fig. 5D illustrates the example of interconnecting LC-X9 with MPO-X8. In this embodiment, the directive a/D module is provided by the manufacturer X for example, but the directive a/D module is not limited to the manufacturer X, and may be provided by other manufacturers.
Fig. 5e shows a connection relationship between the connection fibers inside the adapter board card in the connector adapting unit corresponding to the manufacturer Y and an interconnection relationship between the connection fibers and the slots on the backplane in the optical cross-connect unit. As shown in fig. 5e, the connector adapter unit corresponding to manufacturer Y includes 2 LC adapter modules LC-Y1 and LC-Y2, 3 MPO adapter modules MPO-Y3, MPO-Y4, MPO-Y4, and slot connectors formed by 6 MT blind connectors; the 6 MT blind inserts are MT-Y1, MT-Y2, MT-Y3, MT-Y4, MT-Y5 and MT-Y6 respectively. MT-Y5 and MT-Y6 may be left empty because factory Y can use up to 20 line dimensions with 20 slots, which means that slot connectors need to provide 38 fibers, 1 MT blind plug 12 core, and 4 MT blind plugs MT-Y1-MT-Y4, so MT-Y5 and MT-Y6 are not shown in fig. 5 e. In fig. 5e, the connector adapter unit corresponding to manufacturer Y is shown inserted into slot-2.
It should be noted that, in addition to providing the optical fiber connection device, the embodiments of the present application may also separately protect the optical cross-connect unit or the connector adapting unit, and the optical cross-connect unit or the connector adapting unit may also be produced, manufactured or used as a stand-alone product. Based on this, by adopting the technical scheme provided by the embodiment of the application, dedicated optical fiber connection equipment, optical cross-connect units or connector adaptation units can be customized for optical fiber connectors used by different manufacturers, optical fiber interconnection between heterogeneous optical fiber connectors can be realized by using the optical cross-connect units with standard interfaces, further optical fiber interconnection (for example, full connection) between different line side modules and between local add-drop modules and line side modules can be realized, ROADM manufacturers with different dimensions can be decoupled, and the optical fiber interconnection equipment can be used in open heterogeneous ROADM sites.
In addition, the connector adapting unit provided by the embodiment of the application can be inserted and pulled at will on a backplane slot, so that the number of the connector adapting units and the plugging positions on the backplane can be flexibly adjusted according to parameters such as the number of line side modules in a ROADM station, the condition of optical fiber connectors used in each line dimension, the number of wavelengths used by local add-drop modules and the like, and the flexibility and the universality are strong.
In some of the above embodiments, the application of the optical fiber connection device (or the combination of the optical cross-connect unit and the connector adapter unit) in the heterogeneous ROADM site is taken as an example for the emphasis, but the application is not limited to the heterogeneous ROADM site. The optical fiber connection device (or the optical cross-connect unit and the connector adapting unit used in combination) of the embodiment can be used for optical fiber interconnection of M optical path modules in any ROADM site; the ROADM site may be a heterogeneous ROADM site or a homogeneous ROADM site. If the ROADM site is a heterogeneous ROADM site, all the M optical path modules in the ROADM site may be from different vendors (i.e., all the heterogeneous networks); alternatively, part of the optical path modules may be from different manufacturers, and part of the optical path modules may be from the same manufacturer, i.e., may be partially heterogeneous. If the ROADM site is an isomorphic ROADM site, the M optical path modules in the ROADM site come from the same manufacturer and are isomorphic. Whether the method is applied to heterogeneous ROADM sites or homogeneous ROADM sites, the implementation structures of the optical fiber connection device, the optical cross-connect unit, and the connector adapting unit are the same, and reference may be made to the foregoing embodiments, and details are not described here.
It should be noted that in the embodiment of the present application, the optical fiber connection between the slots, the optical fiber connection between the adapter module and the slot connector, and the optical connection between the slot connector and the slot may be a bidirectional optical fiber connection, but is not limited thereto.
In the above embodiments, fig. 2a and fig. 3a show an implementation structure of the optical cross-connect unit and the connector adapting unit, respectively, but are not limited to the implementation structure. As shown in fig. 6, the connector adapting unit in the embodiment of the present application may also be implemented by using a fiber jumper structure. The jumping fiber structure belongs to the category of jumping fiber, and comprises a plurality of optical fibers, wherein the optical fibers are used for connecting the optical fiber connectors in one optical fiber connector to the optical cross connection unit, and then interconnection among all paths of heterogeneous optical fiber connectors is realized inside the optical cross connection unit. The number of optical fiber cores in the fiber jumping structure is greater than or equal to the sum of the number of optical fiber cores in one path of optical fiber connector connected with the fiber jumping structure. Fig. 6 shows 5 fiber jumping structures 61-65, where the 5 fiber jumping structures correspond to 5 different fiber optic connectors, and the 5 fiber jumping structures are only examples. As shown in fig. 6, 5 types of jumper structures 61-65 have one end connected to one fiber connector and the other end connected to an optical cross-connect unit.
As shown in fig. 6, the fiber jumper structure 61 is used to connect with a fiber optic connector, which includes 4 MPO connectors with a fiber arrangement sequence a. Assuming that the number of cores of fibers arranged in an MPO connector is 12, the jumper structure 61 needs to include at least 12 × 4 — 48 core fibers.
As shown in fig. 6, the fiber jumper structure 62 is used to connect with a fiber optic connector, which includes 3 MPO connectors with a fiber arrangement sequence a. Assuming that the number of fiber cores disposed within an MPO connector is 12, the jumper structure 62 would need to include at least 12 × 3 — 36 core fibers.
As shown in fig. 6, the fiber jumper structure 63 is adapted to be connected to a fiber connector, where the fiber connector includes 3 MPO connectors with fiber arrangement sequence B. Assuming that the number of cores discharged in an MPO connector is 24, the jumper structure 63 needs to include at least 24 × 3 ═ 72 core fibers.
As shown in fig. 6, the fiber jumper structure 64 is adapted to be connected to a fiber optic connector, which includes 2 MPO connectors with a fiber arrangement order C. Assuming a fiber core count of 24 for a single MPO connector, the jumper structure 64 would need to include at least 24 x2 ═ 48 core fibers.
As shown in fig. 6, the fiber jumper structure 65 is used to mate with a single fiber connector, which includes 6 pairs of LC connectors. If the number of discharged cores in a pair of LC connectors is 2, then the jumper structure 65 needs to include at least 2 x 6-12 core fibers.
In the case that the connector adapting unit is implemented by using a fiber jumper structure, the optical cross-connect unit may be implemented by using the implementation structure provided in the foregoing embodiment, or may be implemented by using an all-optical cross backplane or a conventional optical fiber connection box. This implementation is relatively simple and low cost.
It should be noted that the length of the fiber jumper structure needs to be flexibly customized according to the actual engineering situation, so as to meet the engineering requirements of heterogeneous ROADM sites. Accordingly, the connector adapter unit may be connected to the fiber optic connector using extension wires of a standard fiber optic connector (e.g., MPO or LC).
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (24)
1. An optical fiber connection apparatus for fiber optic interconnection to M-way heterogeneous fiber optic connectors, the apparatus comprising: the optical cross connection unit and M connector adapting units, wherein M is a natural number more than or equal to 2;
the connector adapting unit is used for being in adaptive connection with one optical fiber connector; the optical cross connection unit is optically connected with the M connector adapting units and is used for realizing optical fiber interconnection among the M connector adapting units;
the optical fiber connectors used by M optical path modules in the heterogeneous ROADM station form the M heterogeneous optical fiber connectors, and the type and the number of the optical fiber connectors contained in any two heterogeneous optical fiber connectors and at least one of the information of the number of optical fiber cores and the fiber arrangement sequence in the optical fiber connectors are different; and each optical fiber connector comprises one or more optical fiber connectors, and a connector adapting unit which is adapted and connected with the optical fiber connectors performs optical connection with the optical fiber connectors according to the interface modes supported by the optical fiber connectors in the optical fiber connectors.
2. The apparatus of claim 1, the optical cross-connect unit comprising a backplane having N slots defined therein, each slot having at least one fiber port; the optical fiber ports in the N slot positions are interconnected by optical fibers according to a set optical fiber interconnection mode;
the M connector adapting units are connected with the M slots in a pluggable manner so as to realize optical fiber interconnection among the M connector adapting units; n is a natural number, and N is more than or equal to M.
3. The device of claim 2, the M-way heterogeneous fiber optic connectors from heterogeneous ROADM sites; and the optical fiber connectors used by the line side module and/or the local add-drop module in the heterogeneous ROADM site form the M-path heterogeneous optical fiber connector.
4. The device of claim 3, wherein the N slots include N1 slots for connecting a first type of connector adapter unit, the first type of connector adapter unit being a connector adapter unit for adapting connection with a fiber optic connector used by a line side module and/or a fixed direction local add-drop module in the heterogeneous ROADM site; wherein N1 is a natural number not less than 1, and N1 is not more than N.
5. The device of claim 4, wherein the N slots further comprise N2 slots for connecting a second type of connector adapter unit, the second type of connector adapter unit being a connector adapter unit for adapting and connecting with a fiber optic connector used by a local add-drop module in the ROADM site that is not fixed in direction; wherein N2 is a natural number not less than 1, and N1+ N2 is not more than N.
6. The apparatus of claim 5 wherein said N1 slots are optically connected to each other and each of said N2 slots is optically connected to said N1 slots, respectively.
7. The apparatus of claim 3, wherein the M connector adapter units comprise M1 first-type connector adapter units, M1 is a natural number ≧ 1, and M1 ≦ M.
8. The apparatus of claim 7, said M connector adapter units further comprising M2 second-type connector adapter units; m2 is a natural number not less than 1, and M1+ M2 is not more than M.
9. The apparatus of any of claims 2-8, each connector adapter unit comprising an adapter card; one side of the adapter board card is provided with a slot connector which is connected with one slot on the back board in a pluggable manner; the other side of the adapter board card is provided with at least one adapter component which is in adapter connection with a fiber connector; and the conversion of the optical fiber port and/or the fiber arrangement sequence between the at least one adapting component and the slot connector is realized in the adapting board card.
10. The apparatus of claim 9, a portion of the fiber ports in the at least one adapter component interconnected with at least a portion of the fiber ports in the slot insert, another portion of the fiber ports in the at least one adapter component being free;
or alternatively
Part of optical fiber ports in the at least one adapting assembly are interconnected with at least part of optical fiber ports in the slot connector, and the other part of optical fiber ports in the at least one adapting assembly are connected with at least one pair of LC connectors arranged on the other surface of the adapting board card;
or
All the optical fiber ports in the at least one adapting assembly are interconnected with at least part of the optical fiber ports in the slot connector.
11. The apparatus of claim 9, a first MT blind insert disposed in each slot, a fiber port of the first MT blind insert constituting a fiber port in the slot; the slot connector comprises a second MT blind connector, and an optical fiber port of the second MT blind connector forms an optical fiber port in the slot connector.
12. The apparatus of claim 9, each fiber optic connector comprising one or more fiber optic connectors, and each fiber optic connector being one or more in number; accordingly, the at least one mating component includes one or more mating components of the fiber optic connectors, and the number of mating components of each fiber optic connector is one or more.
13. The apparatus of claim 1, wherein the connector adapting unit is implemented by a fiber jumper structure, one end of the fiber jumper structure is connected with a one-way optical fiber connector, and the other end of the fiber jumper structure is connected with the optical cross-connect unit; the number of optical fiber cores contained in the fiber jumping structure is larger than or equal to the sum of the number of optical fiber cores in one path of optical fiber connector connected with the fiber jumping structure.
14. The apparatus of claim 13, the optical cross-connect unit being an all-optical cross-connect backplane or a conventional fiber optic connection box.
15. An optical cross-connect unit comprises a back plate, wherein N slot positions are arranged on the back plate, and each slot position is used for being connected with a connector adapting unit in a pluggable manner; each slot position is provided with at least one optical fiber port, and the optical fiber ports in the N slot positions are interconnected in an optical fiber interconnection mode; wherein N is a natural number not less than 2;
the connector adapting unit is used for being in adaptive connection with one optical fiber connector in the M paths of heterogeneous optical fiber connectors; m is a natural number not less than 2 and N is not less than M; the optical fiber connectors used by the M optical path modules in the heterogeneous ROADM site form the M heterogeneous optical fiber connectors, and the type and the number of the optical fiber connectors contained in any two heterogeneous optical fiber connectors and at least one of the information of the number of optical fiber cores and the fiber arrangement sequence in the optical fiber connectors are different; and each optical fiber connector comprises one or more optical fiber connectors, and a connector adapting unit which is adapted and connected with the optical fiber connectors performs optical connection with the optical fiber connectors according to the interface modes supported by the optical fiber connectors in the optical fiber connectors.
16. The optical cross-connect unit of claim 15 wherein a first MT blind insert is disposed in each slot, the fiber ports of the first MT blind insert constituting the fiber ports in the slot.
17. The optical cross-connect unit of claim 15 or 16 wherein the N slots include N1 slots for connecting a first type of connector adapter unit for adapting with optical fiber connectors used by line side modules and/or fixed direction local add/drop modules in heterogeneous ROADM sites; wherein N1 is a natural number not less than 1, and N1 is not more than N.
18. The optical cross-connect unit of claim 17, further comprising N2 slots in the N slots for connecting a second type of connector adapter unit, the second type of connector adapter unit being a connector adapter unit for adapting a fiber optic connector for use with a local add-drop module in the heterogeneous ROADM site that is not fixed in direction; wherein N2 is a natural number not less than 1, and N1+ N2 is not more than N.
19. The optical cross-connect unit of claim 18 wherein said N1 slots are optically connected to each other and each of said N2 slots is optically connected to said N1 slots, respectively.
20. A connector adapting unit comprises an adapting board card; one side of the adaptive board card is provided with a slot connector, and the other side of the adaptive board card is provided with at least one adaptive assembly; the slot connector is used for being connected with a slot in the optical cross connection unit in a pluggable manner, and the at least one adapting component is adapted and connected with one path of optical fiber connector in the M paths of heterogeneous optical fiber connectors; the optical fiber connectors used by the M optical path modules in the heterogeneous ROADM site form the M heterogeneous optical fiber connectors, and the type and the number of the optical fiber connectors contained in any two heterogeneous optical fiber connectors and at least one of the information of the number of optical fiber cores and the fiber arrangement sequence in the optical fiber connectors are different; each path of optical fiber connector comprises one or more optical fiber connectors, and a connector adapting unit which is adaptively connected with the optical fiber connectors is optically connected with the optical fiber connectors according to the interface mode supported by the optical fiber connectors in the optical fiber connectors, wherein M is a natural number which is more than or equal to 2;
and the conversion of the optical fiber port and/or the fiber arrangement sequence between the at least one adapting component and the slot connector is realized in the adapting board card.
21. The connector mating unit of claim 20, the slot insert comprising a second MT blind insert, the fiber ports of the second MT blind insert constituting the fiber ports in the slot insert.
22. The connector mating unit of claim 20, a portion of the fiber ports of the at least one mating component being interconnected with at least a portion of the fiber ports of the slot insert, another portion of the fiber ports of the at least one mating component being left free;
or
Part of optical fiber ports in the at least one adapting assembly are interconnected with at least part of optical fiber ports in the slot connector, and the other part of optical fiber ports in the at least one adapting assembly are connected with at least one pair of LC connectors arranged on the other surface of the adapting board card;
or
All the optical fiber ports in the at least one adapting assembly are interconnected with at least part of the optical fiber ports in the slot connector.
23. The connector mating unit of claim 20, the at least one mating component comprising one or more mating components of fiber optic connectors, the number of mating components of each fiber optic connector being one or more.
24. The connector adaptation unit of any one of claims 20-23, being a first type of connector adaptation unit adapted to connect with fiber connectors used by line side modules and/or fixed direction local add-drop modules in heterogeneous ROADM sites, or a second type of connector adaptation unit adapted to connect with fiber connectors used by non-fixed direction local add-drop modules in heterogeneous ROADM sites.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010208858.2A CN113433633B (en) | 2020-03-23 | 2020-03-23 | Optical cross-connect unit, connector adapting unit and optical fiber connecting device |
| PCT/CN2021/080938 WO2021190347A1 (en) | 2020-03-23 | 2021-03-16 | Optical cross connect unit, connector adaptation unit and optical fiber connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010208858.2A CN113433633B (en) | 2020-03-23 | 2020-03-23 | Optical cross-connect unit, connector adapting unit and optical fiber connecting device |
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| Publication Number | Publication Date |
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| CN113433633A CN113433633A (en) | 2021-09-24 |
| CN113433633B true CN113433633B (en) | 2022-08-23 |
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| CN202010208858.2A Active CN113433633B (en) | 2020-03-23 | 2020-03-23 | Optical cross-connect unit, connector adapting unit and optical fiber connecting device |
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| WO (1) | WO2021190347A1 (en) |
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| CN114545562B (en) * | 2022-03-25 | 2023-12-26 | 阿里巴巴（中国）有限公司 | Optical fiber connection box, data processing method and computer storage medium |
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| CN203365730U (en) * | 2013-06-14 | 2013-12-25 | 深圳市中兴新地通信器材有限公司 | Switching module for high density optical fiber connector |
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| CN207051538U (en) * | 2017-08-02 | 2018-02-27 | 武汉光迅科技股份有限公司 | A kind of MPO optical fiber recombination plates for ROADM systems |
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| WO2021190347A1 (en) | 2021-09-30 |
| CN113433633A (en) | 2021-09-24 |
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