WO2021190347A1 - 光交叉连接单元、连接器适配单元以及光纤连接设备 - Google Patents

光交叉连接单元、连接器适配单元以及光纤连接设备 Download PDF

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Publication number
WO2021190347A1
WO2021190347A1 PCT/CN2021/080938 CN2021080938W WO2021190347A1 WO 2021190347 A1 WO2021190347 A1 WO 2021190347A1 CN 2021080938 W CN2021080938 W CN 2021080938W WO 2021190347 A1 WO2021190347 A1 WO 2021190347A1
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WIPO (PCT)
Prior art keywords
connector
optical fiber
adapter
unit
optical
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PCT/CN2021/080938
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English (en)
French (fr)
Inventor
张欢
陈赛
陆睿
窦亮
谢崇进
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阿里巴巴集团控股有限公司
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Publication of WO2021190347A1 publication Critical patent/WO2021190347A1/zh

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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
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • This application relates to the field of optical communication technology, and in particular to an optical cross-connect unit, a connector adapter unit, and an optical fiber connection device.
  • the Reconfigurable Optical Add-Drop Multiplexer (ROADM) site is a kind of site in the optical transmission network.
  • the internal optical module usually contains at least one line-side module, which can complete the optical Add/Drop of the channel, and cross scheduling of wavelength levels between different directions of the site.
  • each optical path module uses a highly integrated optical fiber connector, and the optical fiber connector connects the optical fiber port in each optical path module to a fiber connection box (Fiber shuffle); inside the Fiber shuffle, the fiber interconnection between each fiber port is realized.
  • Fiber shuffle fiber connection box
  • ROADM sites may be heterogeneous, that is, the optical modules in the ROADM sites are provided by different vendors.
  • the number, type, and line sequence of fiber optic connectors used by different manufacturers are inconsistent.
  • the existing Fiber shuffle requires the same number, form, and line sequence of fiber optic connectors. Therefore, the existing Fiber shuffle cannot be directly used. Used in heterogeneous ROADM sites.
  • the embodiments of the present application provide an optical cross-connect unit, a connector adapter unit, and an optical fiber connection device to solve the problem of optical fiber interconnection between heterogeneous optical fiber connectors.
  • An embodiment of the present application provides an optical fiber connection device for optical fiber interconnection of M heterogeneous optical fiber connectors.
  • the device includes: an optical cross-connect unit and M connector adapting units, where M is a natural number ⁇ 2; Among them, one connector adapting unit is used to adapt and connect to a fiber optic connector; the optical cross-connect unit is optically connected to the M connector adapting units, and is used to realize the M connector adapting units.
  • An embodiment of the present application also provides an optical cross-connect unit, including a backplane, the backplane is provided with N slots, and each slot is used for pluggable connection with a connector adapter unit; each The slot has at least one fiber port, and the fiber ports in the N slots perform fiber interconnection according to a set fiber interconnection mode; where N is a natural number ⁇ 2.
  • the embodiment of the present application also provides a connector adapter unit, including an adapter board; one side of the adapter board is provided with a slot connector, and the other side is provided with at least one adapter component; the slot The connector is used for pluggable connection with a slot in the optical cross-connect unit, and the at least one adaptor component is adapted to connect with an optical fiber connector; inside the adaptor board, the at least The optical fiber port and/or the line sequence conversion between an adapter component and the slot connector.
  • the embodiment of the present application also provides an optical fiber connection device for optical fiber interconnection of M optical path modules in a ROADM site.
  • the device includes: an optical cross-connect unit and M connector adaptation units, where M is ⁇ 2 A natural number; among them, a connector adaptor unit is used to adapt and connect with an optical fiber connector used by an optical path module; the optical cross-connect unit is optically connected with the M connector adaptor units, and is used to realize the M Optical fiber interconnection between two connector adapter units.
  • a connector adapter unit is provided for each heterogeneous optical fiber connector, which is adapted to connect to each heterogeneous optical fiber connector through a different connector adapter unit, and is further connected to different connections through an optical cross-connect unit.
  • the connector adapter unit performs optical connection, realizes the optical fiber interconnection between different connector adapter units, and then achieves the purpose of optical fiber interconnection of various heterogeneous optical fiber connectors, and solves the interconnection problem between heterogeneous optical fiber connectors. This enables various heterogeneous optical fiber connectors to be used in open and heterogeneous ROADM sites, which is conducive to simplifying the implementation of heterogeneous ROADM sites.
  • FIG. 1 is a schematic structural diagram of an optical fiber connection device provided by an exemplary embodiment of this application;
  • FIG. 2a is a schematic structural diagram of an optical cross-connect unit provided by an exemplary embodiment of this application.
  • FIG. 2b is a schematic diagram of an interconnection relationship within each slot in the optical cross-connect unit provided by an exemplary embodiment of this application;
  • Fig. 3a is a schematic structural diagram of a connector adapting unit provided by an exemplary embodiment of the application.
  • Figure 3b is a schematic diagram of an optical fiber connection relationship between the adapter component and the slot connector in the connector adapter unit provided by the exemplary embodiment of the application;
  • 4a is a schematic diagram of the adapter components included in the connector adapter unit provided by an exemplary embodiment of the application and the state of interconnection with the backplane slots;
  • 4b is a schematic diagram of the adapter components included in the connector adapter unit provided by the exemplary embodiment of the application and the state of interconnection with the backplane slot;
  • 4c is a schematic diagram of the adapter components included in the connector adapter unit provided by an exemplary embodiment of the application and the state of interconnection with the backplane slot;
  • FIG. 5a is a schematic diagram of a state of a backplane in slot 27 provided by an exemplary embodiment of this application;
  • Fig. 5b is a schematic diagram of a connector adapting unit corresponding to manufacturer X provided by an exemplary embodiment of the application;
  • Fig. 5c is a schematic diagram of a connector adapting unit corresponding to manufacturer Y provided by an exemplary embodiment of the application;
  • Figure 5d shows the fiber connection relationship within the adapter board in the connector adapter unit corresponding to manufacturer X and the interconnection relationship with the slots on the backplane of the optical cross-connect unit;
  • Figure 5e shows the fiber connection relationship within the adapter board in the connector adapter unit corresponding to manufacturer Y and the interconnection relationship with the slots on the backplane of the optical cross-connect unit;
  • FIG. 6 is a schematic diagram of several fiber jumper structures and their connection states provided by an exemplary embodiment of this application.
  • a connector adapting unit is provided for each heterogeneous optical fiber connector, and adapting through different connectors
  • the unit is connected to each heterogeneous optical fiber connector, and the optical cross-connect unit is further optically connected with different connector adapter units to realize the optical fiber interconnection between different connector adapter units, thereby achieving the
  • the purpose of optical fiber connectors for optical fiber interconnection is to solve the interconnection problem between heterogeneous optical fiber connectors, so that various heterogeneous optical fiber connectors can be used in open and heterogeneous ROADM sites, which is conducive to simplifying the realization of heterogeneous ROADM sites .
  • FIG. 1 is a schematic structural diagram of an optical fiber connection device provided by an exemplary embodiment of this application.
  • the optical fiber connection device 100 includes: an optical cross-connect unit 20 and M connector adapter units 10; Construct optical fiber connectors for optical fiber interconnection.
  • M is a natural number ⁇ 2.
  • the M-channel heterogeneous optical fiber connector in the embodiment of the present application will be briefly explained.
  • any optical fiber connector it may include one type of optical fiber connector, and the number of this type of optical fiber connector may be one or more.
  • a fiber optic connector contains only one or more MPO connectors.
  • one optical fiber connector only contains one or more pairs of LC connectors.
  • it may also include multiple types of optical fiber connectors, and the number of each type of optical fiber connector may be one or more.
  • a fiber optic connector includes an MPO connector and multiple pairs of LC connectors.
  • one optical fiber connector includes multiple MPO connectors and a pair of LC connectors.
  • the number of the fiber used and the sequence of the fiber arrangement may be different. 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 take the 12-core MPO connector as an example, and some The fiber line sequence is line sequence A, some of the fiber line sequence is line sequence B, and some of the fiber line sequence is line sequence C.
  • any two optical fiber connectors as long as at least one of the types and quantities of optical fiber connectors included, and the number of fiber cores in the optical fiber connectors and the line sequence of the fibers in the optical fiber connectors are different, it means this The two-way fiber optic connector is heterogeneous.
  • each MPO connector contains 8 12-core MPO connectors, and each MPO connector uses 3-10 cores (that is, 4 pairs of optical fiber ports), which has a total of 32 pairs of optical fiber ports; the other optical fiber connector contains 3 12-core MPO connectors, each MPO connector uses 1 to 12 cores (that is, 6 pairs of optical fiber ports), and there are a total of 18 pairs of optical fiber ports.
  • the two optical fiber connectors are heterogeneous.
  • the "heterogeneity" in the M-way heterogeneous optical fiber connector mainly refers to the heterogeneity between different optical fiber connectors. Of course, it can also include the heterogeneity between the optical fiber connectors in the same optical fiber connector. Heterogeneous situation. Wherein, one optical fiber connector corresponds to one connector adapting unit 10, and the number of connector adapting units 10 can be flexibly determined according to the number of heterogeneous optical fiber connectors that need to be interconnected.
  • the number of connector adapting units 10 is 3; if 2 heterogeneous optical fiber connectors need to be interconnected by optical fibers, the number of connector adapting units 10 If the 16-way heterogeneous optical fiber connector needs to be interconnected by optical fibers, the number of the connector adapting unit 10 is 16; and so on.
  • the M-channel heterogeneous optical fiber connector requires optical fiber interconnection as an example for explanation, and the source of the M-channel heterogeneous optical fiber connector is not limited.
  • a connector adapting unit 10 is provided, that is, M connector adapting units 10 are provided; each connector adapting unit 10 is connected to one of the optical fiber connector and the optical cross-connect unit 20 That is, one end of each connector adapting unit 10 is adapted to connect to an optical fiber connector, and the other end is optically connected to the optical cross-connect unit 20.
  • the connector adapting unit 10 that is adapted to connect with the optical fiber connector is adapted to connect to the one optical fiber connector; if one optical fiber connector includes multiple optical fibers Connector, then the connector adapting unit 10 that is adapted to connect to the optical fiber connector is adapted to connect to the plurality of optical fiber connectors.
  • the adapting connection between the connector adapting unit 10 and a path of optical fiber connector can be understood as: the connector adapting unit can optically connect to each optical fiber connector according to the interface mode supported by each optical fiber connector in the path of optical fiber connector. .
  • M connector adapting units 10 are optically connected to the optical cross-connect unit 20, and the optical fiber interconnection between the M connector adapting units 10 is realized inside the optical cross-connect unit 20, so as to achieve the integration of M heterogeneous optical fibers.
  • the purpose of the connector for optical fiber interconnection This solves the interconnection problem between heterogeneous fiber optic connectors, and enables various heterogeneous fiber optic connectors to be used in open and heterogeneous ROADM sites, which is beneficial to reduce the fiber connection relationship within heterogeneous ROADM sites, and can simplify heterogeneous fiber connections. The realization of the ROADM site.
  • the implementation structure of the optical cross-connect unit 20 is not limited.
  • FIG. 2a it is a schematic structural diagram of an optical cross-connect unit 20 provided by an embodiment of this application.
  • the optical cross-connect unit 20 includes: a backplane 21; the backplane 21 is provided with N slots 22, where N is a natural number ⁇ 1.
  • These slots 22 are the interconnection interfaces between the optical cross-connect unit 20 and the connector adapter unit 10.
  • these slots 22 support a pluggable connection mode, and each slot 22 can be pluggably connected to a connector adapter unit 10.
  • this embodiment does not limit the number of slots 22 opened on the back plate 21, and can be flexibly set according to needs.
  • the number of connector adapter units 10 and the number of slots 22 that need to be opened on the backplane 21 can be determined according to the number of routes to meet the requirements. ⁇ Customized optical fiber connection device 100.
  • the number of slots can also be standardized according to industry standards, experience, or deployment requirements of optical transmission networks, so as to obtain optical fiber connection devices 100 or optical cross-connect units 20 containing different numbers of slots.
  • the optical fiber connection device 100 or the optical cross-connect unit 20 has three slots, 10 slots, 16 slots, 32 slots, or 27 slots. Regardless of the method of determining the number of slots, for the final realization of the optical fiber connection device 100, the number of connector adapter units 10 contained therein should not exceed the number of slots contained therein, that is, N ⁇ M.
  • each slot 22 has at least one fiber port, which is not shown in the drawings.
  • different slots 22 may have the same number of fiber ports, the same slot structure, and the same slot shape, thereby realizing a standardized interface shape.
  • the number of optical fiber ports included in each slot 22 is not limited, and can be flexibly determined according to optical interconnection requirements and specific scenarios.
  • each slot 22 may contain 10, 20, 24, 32, or 48 fiber ports.
  • each optical fiber port can be connected to one optical fiber, and the number of optical fiber interfaces contained in each slot 22 is the number of optical fiber cores that can be interconnected in the slot.
  • the optical fiber ports in the N slots 22 are interconnected according to the set optical fiber interconnection mode, so that the connector adapter units 10 plugged into different slots 22 will be interconnected in a corresponding manner.
  • the M connector adapter units 10 included in it are pluggably connected to the M slots 22, so as to realize M by the optical fiber interconnection between the M slots 22
  • the optical fiber interconnection between the connector adapting units 10; here, the M slots 22 may be part of or all of the N slots 22.
  • the optical fiber interconnection mode between the optical fiber ports in the N slots 22 is not limited, and it can be flexibly set according to application scenarios and interconnection requirements.
  • all N slots 22 may be optically connected to each other; or, some of the slots 22 may be optically connected to each other, and another part of the slots 22 may be optically connected to the previous part of the slots 22, but another part of the slots 22 may be optically connected to each other.
  • the optical connection between the two slots may include the connection in both directions of optical signal transmission and reception, which means that a pair of optical fiber ports (that is, two If two optical fiber ports are correspondingly connected, optical signal transmission and reception can be performed between the two slots 22.
  • the source of the M-channel heterogeneous optical fiber connector is not limited, and may be two or more optical fiber connectors that need to be interconnected by optical fibers in any optical transmission network.
  • open and heterogeneous ROADM sites may appear in the optical transmission network. Manufacturers provide that the types, quantities, and wiring sequence of optical fiber connectors used in these optical path modules are different.
  • the M-channel heterogeneous optical fiber connector may come from a heterogeneous ROADM site, that is, the optical fiber connector used by the line-side module and/or the local add/drop module in the heterogeneous ROADM site constitutes an M channel.
  • the optical path module in the heterogeneous ROADM site is a collective term for the local add/drop module and the line side module in the heterogeneous ROADM site, and the optical path module may be in the heterogeneous ROADM site.
  • the local add/drop module can also be a line-side module in a heterogeneous ROADM site.
  • the local add/drop module (Add/Drop, A/D) can be divided into an unfixed direction local add/drop module (Directionless A/D module) and a fixed direction local add/drop module (Directioned A/D module).
  • the optical fiber connector used by a line-side module in a heterogeneous ROADM site constitutes one of the M-channel heterogeneous optical fiber connectors; or, a line-side module and one or more Directioned A/D modules in a heterogeneous ROADM site are used
  • the optical fiber connector constitutes one of the M-channel heterogeneous optical fiber connectors; or, the optical fiber connectors used by several Directioned A/D modules in the heterogeneous ROADM site constitute one of the M-channel heterogeneous optical fiber connectors; or, different
  • the optical fiber connector used by a Directionless A/D module in the ROADM site constitutes one of the M-channel heterogeneous optical fiber connectors.
  • the number of local add/drop modules and line-side modules in a heterogeneous ROADM site is not limited.
  • a heterogeneous ROADM site can contain one or more local add/drop modules.
  • a heterogeneous ROADM site can also contain one or more line-side modules.
  • the optical fiber connector used by each optical path module is adapted to a connector in the optical fiber connection device 100.
  • the distribution unit 10 is optically connected, and the connector adapter unit 10 is plugged into the slots 22 in the optical cross-connect unit 20, and the optical connection relationship between these slots 22 is used to realize the optical fiber connectors used by the optical path modules.
  • Optical interconnection and then realize the optical interconnection between the optical path modules, solve the optical interconnection problem between heterogeneous optical fiber connectors, and indirectly solve the optical interconnection problem between heterogeneous optical path modules in heterogeneous ROADM sites, and can Simplifying the fiber connection relationship within heterogeneous ROADM sites is conducive to simplifying the realization of heterogeneous ROADM.
  • the connector adapting unit can be divided into two categories: the first type of connector adapting unit and the second type of connector adapting unit.
  • the first type of connector adapting unit refers to the connector adapting unit used to adapt and connect with the optical fiber connector used by the line-side module and/or the Directioned A/D module in the heterogeneous ROADM site;
  • the second type The connector adapting unit refers to the connector adapting unit used to adapt and connect with the optical fiber connector used by the Directionless A/D module in the ROADM site.
  • the N slots 22 in the optical cross-connect unit 20 can be classified accordingly, or be classified and used.
  • the N slots 22 in the optical cross-connect unit 20 may include N1 slots for connecting the first-type connector adapter unit.
  • the N slots 22 in the optical cross-connect unit 20 may also include N2 slots for connecting the second-type connector adapting unit.
  • the two fiber ports in each two slots are connected by two optical fibers, that is, using Two-way fiber connection. In this way, when the optical fiber connectors used by the line-side modules in the ROADM site are plugged into these slots 22 through the first-type connector adapter unit, the optical connection between these line-side modules is realized.
  • N slots 22 in the optical cross-connect unit 20 are used to connect to the first type of connector adapter unit, and some are used to connect to the second type of connector adapter unit, that is, N1+N2 ⁇ N .
  • the N1 slots are all optically connected to each other to form a full Mesh network; each of the N2 slots used to connect the second-type connector adapter unit is connected to the first-type connector
  • the N1 slots of the distribution unit are optically connected.
  • the N2 slots used to connect the second type of connector adapter unit may not be connected, which can reduce optical fiber connection Quantity, reduce the complexity of optical fiber connection.
  • the N2 slots used to connect the second-type connector adapter unit can also be all optically connected to each other or partly optically connected, depending on requirements.
  • the N2 slots used to connect the second type connector adapter unit are optically connected to each other, it means that the optical fiber ports between the N1+N2 slots are all optically connected to each other, which will be in the N1 +N2 slots form a full Mesh network.
  • the optical fiber connection device 100 may include different types of connector adapting units.
  • the M connector adapting units 10 may also include M2 second-type connector adapting units.
  • the implementation structure of the connector adapting unit is not limited.
  • FIG. 3a it is a schematic structural diagram of a connector adapting unit 10 provided by an embodiment of this application.
  • the connector adapter unit 10 includes: an adapter board 11; one side of the adapter board 11 is provided with a slot connector 12, which is pluggably connected to the backplane 21 shown in FIG. 2a
  • the other side of the adapter board 11 is provided with at least one adapter component 13 to be connected to a fiber optic connector; inside the adapter board 11, at least one adapter component 13 is connected to the slot
  • the optical fiber port and/or the wiring sequence of the fiber arrangement between the connectors 12 are changed.
  • FIG. 3b the optical fiber connection relationship between at least one adapter component 13 and the slot connector 12 is shown in FIG. 3b.
  • Port_1, Port_2, Port_3,..., and Port_m represent m adapting components 13, specifically representing the interfaces of m adapting components 13, and m is a natural number ⁇ 1. These interfaces are inserted into slots through optical fibers.
  • the connector 12 is optically connected. As shown in FIG. 3b, the number of fiber cores supported by different adapter components 13 is not the same. Of course, the fiber arrangement sequence supported by different adapter components 13 is also different, which is not shown in FIG. 3b.
  • the slot connector 12 can be inserted into a slot on the optical cross-connect unit 20. In FIG. 3b, the slot connector 12 is inserted into the slot SLOT_1 as Examples, but not limited to this.
  • the number of adapter components 13 on the adapter board 11 is not limited, and it may be determined based on the condition of the optical fiber connector to which the connector adapter unit 10 belongs.
  • the type and number of optical fiber connectors included in each optical fiber connector in the M heterogeneous optical fiber connectors are not limited.
  • each optical fiber connector may include one or more optical fiber connectors, and the number of each optical fiber connector is one or more.
  • the adapter component 13 provided on the other side of the adapter board 11 in this embodiment may include one or more types of fiber optic connector adapter components, and the number of adapter components of each type of fiber optic connector is One or more, depending on the type and number of optical fiber connectors included in the optical fiber connector connected to the connector adapting unit 10.
  • a heterogeneous ROADM site includes 3 line-side modules, Directionless A/D modules, and 3 Directioned A/D modules.
  • these line-side modules and In the local add/drop module wavelength selective switches (Wavelength Selective Switch, WSS) can be used in both directions of optical signal transmission and reception.
  • WSS Wavelength Selective Switch
  • These line-side modules and local add/drop modules come from different manufacturers, and different manufacturers use different optical connectors to connect these WSSs to the optical fiber connection device of this embodiment to achieve optical fiber interconnection.
  • the first line-side module (corresponding to line direction 1) uses 4 MPO connectors with a line sequence of A
  • the second line-side module (corresponds to line direction 2) uses three fiber line sequences.
  • the third line-side module (corresponding to the line direction 3) uses 3 MPO connectors with the fiber arrangement B, and the Directionless A/D module uses 2 MPO connectors with the fiber arrangement C.
  • the three Directioned A/D modules use three pairs of LC connectors (that is, one Directioned A/D module uses one pair of LC connectors).
  • the optical fiber connection device 100 includes three connector adaptation units 101-103 corresponding to the three line-side modules; among them, the connector adaptation unit 101 corresponding to the first line-side module
  • the above contains 4 MPO adapter assemblies 101a with a fiber arrangement of A, and these 4 MPO adapter assemblies 101a are respectively interconnected with 4 MPO connectors with a fiber arrangement of A used by the first line-side module; and
  • the connector adapter unit 102 corresponding to the second line-side module contains three MPO adapter components 101a with a line sequence of A. These three MPO adapter components 101a are respectively the same as those used by the second line-side module.
  • the connector adapter unit 103 corresponding to the third line-side module contains three MPO adaptors 103a with a line sequence of B. These three MPOs are suitable
  • the matching components 103a are respectively interconnected with the three MPO connectors with the line sequence B used by the third line-side module. Further, as shown in FIG.
  • the optical fiber connection device 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 two fiber cables
  • the MPO adapter assembly 104a with the sequence C, these two MPO adapter components 104a are respectively interconnected with the two MPO connectors with the cable sequence C used by the Directionless A/D module. Further, as shown in FIG.
  • the optical fiber connection device 100 further includes a connector adapting unit 105 corresponding to three Directioned A/D modules; the connector adapting unit 105 corresponding to three Directed A/D modules includes 3 There are two LC adapter components 105a, and each LC adapter component 105a is interconnected with a pair of LC connectors used by a Directioned A/D module; among them, a pair of LC connectors is connected to a fixed line direction (that is, a Directioned A/D module). Module), so the LC adapter component interconnected with a pair of LC connectors can be connected to a fixed line direction, but three LC adapter components can be connected to different line directions.
  • 4a to 4c also show structures such as the backplane 21 and the slots 22, and for these structures, please refer to the description of the foregoing embodiment.
  • the connector adapter unit corresponding to each optical path module can be plugged into any slot of the optical cross-connect unit 20.
  • the connector adapter unit corresponding to each optical path module can be plugged into the slot of the corresponding category, for example, the line side module
  • the corresponding connector adapter unit belongs to the first type of connector adapter unit, and can be plugged into the slot used to connect the first type of connector adapter unit; for another example, the connector adapter corresponding to the Directionless A/D module
  • the matching unit belongs to the second type of connector adapting unit and can be plugged into the slot for connecting the second type of connector adapting unit.
  • each first-type connector adapter unit can separately include an adapter component for connecting with the optical fiber connector used by the line-side module, as shown in Figure 4a.
  • it may also include an adaptor component for adapting connection with the optical fiber connector used by the line-side module and an adapting component for adapting connection with the optical fiber connector used by the Directioned A/D module, as follows As shown in Figure 5b and Figure 5d; alternatively, an adaptor component for adapting and connecting with the optical fiber connector used by the Directioned A/D module can also be separately included, as shown in Figure 4c.
  • its adapter board can separately include an adapter component for connecting with the optical fiber connector used by the Directionless A/D module, as shown in Figure 4b. Shown.
  • each adapter component on the adapter board 11 contains optical fiber ports, which are used for optical fiber interconnection with the optical fiber ports in the slot connectors.
  • One optical fiber port is connected to one fiber port. optical fiber.
  • the relationship between the sum of the number of fiber ports in at least one adapter component on the adapter board 11 and the total number of fiber ports in the slot connector is not limited, and the two may be the same or may be Are not the same.
  • the sum of the number of fiber ports in at least one of the adapter components on the adapter board 11 may be greater than the total number of fiber ports in the slot connector; or, at least one adapter component on the adapter board 11
  • the sum of the number of fiber ports in the middle may also be less than the total number of fiber ports in the slot connector, depending on the actual design and application requirements.
  • Case 1 Some optical fiber ports in at least one adapter component on the adapter board 11 are interconnected with at least some optical fiber ports (including part or all of the two cases) in the slot connector, and at least one adapter on the adapter board 11 Another part of the optical fiber port in the distribution assembly is free.
  • An example of Case 1 is shown in Figure 5e.
  • Case 2 Some optical fiber ports in at least one adapter component on the adapter board 11 are interconnected with at least some optical fiber ports in the slot connector, and another portion of the optical fiber ports in at least one adapter component on the adapter board 11 is interconnected with At least a pair of LC connectors arranged on the other side of the adapter board 11 (that is, the side where the adapter component is located) are connected; in this way, the excess optical fiber ports can be connected through the LC connectors for other uses.
  • An example of Case 2 is shown in Figure 5d.
  • the LC connector is used to connect the Directioned A/D module
  • the fiber port on the LC-X9 adapter component corresponding to the LC connector is used to interconnect the LC connector used by the Directioned A/D module.
  • Case 3 All optical fiber ports in at least one adaptor component on the adapter board 11 are interconnected with at least part of the optical fiber ports in the slot connector.
  • the optical cross-connect unit in the optical fiber connection device provided in the embodiment of the present application includes 27 slots, namely slot-1 to slot-27. Slots slot-1 to slot-9 are fully connected (full Mesh), slot-10 to slot-27 are connected to slot-1 to slot-9, but slot-10 to slot-27 are There is no connection between them.
  • each slot is formed by at least one first MT blind insert, and the optical fiber port of the at least one first MT blind insert constitutes the optical fiber port in the slot.
  • there are a total of 27 slots and a maximum of 27 slots can be used.
  • Each slot can be interconnected with other 26 slots at most. This means that each slot has a maximum of 26 pairs of fibers (that is, 52). Based on this, each slot can use five 12-core first MT blind inserts to form a slot with 60 fiber ports.
  • the slots slot-1 to slot-9 are used to connect the first-type connector adapter unit, that is, for the optical fiber interconnection between the line-side modules.
  • slot-9 can be used as a spare slot, so In Figure 5d and Figure 5e, only the slots slot-1 to slot-8 are shown; the slots slot-10 to slot-27 are used to connect the second type of connector adapter unit, that is, for local add/drop Optical fiber interconnection between the module and the line-side module.
  • the optical fiber connection device provided in this embodiment is applied to a heterogeneous ROADM site, and the heterogeneous ROADM site includes the line-side modules provided by manufacturer X (1x32) and manufacturer Y (1x20), and the Directioned A/D provided by manufacturer X Module; among them, the line side module provided by manufacturer X uses 8 MPO connectors for connection, the Directioned A/D module provided by manufacturer X uses 1 pair of LC connectors for connection; the line side module provided by manufacturer Y uses 3 MPO connector and 2 pairs of LC connectors are connected.
  • a connector adapter unit containing 8 MPO adapter components and 1 LC adapter component can be designed, as shown in Figure 5b; among them, 8 MPO adapter components are used for The 8 MPO connectors used by the line-side module are interconnected, and a pair of LC adaptor components are used to interconnect with a pair of LC connectors used by the Directioned A/D module.
  • a connector adapter unit with three MPO adapter components and two LC adapter components can be designed, as shown in Figure 5c; among them, three MPO adapter components are used with line-side modules.
  • the 3 MPO connectors are interconnected, and the 2 LC adapter components are used to interconnect the 2 pairs of LC connectors used by the line-side module.
  • the slot connectors of the two connector adapter units are implemented by using second MT blind plugs, and each slot plug includes at least one second MT blind plug, and at least one optical fiber port of the second MT blind plug An optical fiber port forming a slot connector.
  • the number of second MT blind inserts included in each slot connector is not limited.
  • six 12-core second MT blind inserts can be used to form a slot insert with 72 fiber ports. ⁇ .
  • the first MT blind plug-in is adapted to the second MT blind plug-in, for example, one is the male plug of the MT blind plug-in, and the other is the female plug of the MT blind plug-in.
  • Figure 5d shows the fiber connection relationship within the adapter board in the connector adapter unit corresponding to manufacturer X and the interconnection relationship with the slots on the backplane of the optical cross-connect unit.
  • the connector adapter unit corresponding to manufacturer X includes 8 MPO adapter components, namely MPO-X1, MPO-X2, MPO-X3, ... and MPO-X8, 1 LC adapter Equipped with LC-X9 and slot connectors formed by 6 blind MT plug-ins; the 6 blind plug-ins are MT-X1, MT-X2, MT-X3, MT-X4, MT-X5 and MT- X6.
  • the optical cross-connect unit has only 27 slots at most, manufacturer X can only use 27 line dimensions through 27 slots at most, which means that the slot connector needs to provide 52 fibers, and 1 MT blind plug-in 12 Core, 5 MT blind plug-in MT-X1-MTX5 are enough, so MT-X6 can be left blank.
  • the connector adapter unit corresponding to manufacturer X is plugged into slot-1 as an example for illustration.
  • the LC adaptation component LC-X9 is interconnected with a pair of LC connectors used by the Directioned A/D module, it only needs to be interconnected with one line direction.
  • the LC adaptation component LC -X9 is interconnected with the line-side module provided by manufacturer X (that is, the line direction of the local end) as an example. Therefore, the LC adapter component LC-X9 only needs to be interconnected with any one of MPO-X1 to MPO-X8.
  • LC -X9 and MPO-X8 interconnection is shown as an example. It is explained here that in this embodiment, the Directioned A/D module is provided by the manufacturer X as an example for description, but it is not limited to the manufacturer X, and the Directioned A/D module can also be provided by other manufacturers.
  • FIG. 5e shows the fiber connection relationship within the adapter board in the connector adapter unit corresponding to manufacturer Y and the interconnection relationship with the slots on the backplane of the optical cross-connect unit.
  • the connector adapter unit corresponding to manufacturer Y includes two LC adapter components LC-Y1 and LC-Y2, three MPO adapter components MPO-Y3, MPO-Y4, MPO-Y4, and Slot connectors formed by 6 blind MT plug-ins; the 6 blind plug-ins are MT-Y1, MT-Y2, MT-Y3, MT-Y4, MT-Y5 and MT-Y6.
  • manufacturer Y can use 20 line dimensions at most through 20 slots, this means that the slot connector needs to provide 38 fibers, 1 MT blind plug-in with 12 cores, and 4 MT blind plug-ins MT-Y1-MT-Y4 That is enough, so MT-Y5 and MT-Y6 can be left blank, so MT-Y5 and MT-Y6 are not shown in Figure 5e.
  • the connector adapter unit corresponding to manufacturer Y is plugged into slot-2 as an example for illustration.
  • the embodiments of the present application can also separately protect the optical cross-connect unit or connector adapter unit, and the optical cross-connect unit or connector adapter unit can also be used as an independent product. Is produced, manufactured or used. Based on this, using the technical solutions provided in the embodiments of this application, dedicated optical fiber connection equipment, optical cross-connect units, or connector adapter units can be customized for fiber-optic connectors used by different manufacturers, and optical cross-connects with standard interfaces can be used.
  • the unit realizes the optical fiber interconnection between heterogeneous optical fiber connectors, and then realizes the optical fiber interconnection (such as full connection) between different line-side modules and between local add/drop modules and line-side modules, which can decouple ROADM manufacturers of different dimensions. It can be used in open heterogeneous ROADM sites.
  • the connector adapter unit provided by the embodiment of the present application can be inserted and removed at will on the backplane slot, so it can be based on the number of line side modules in the ROADM site, the condition of the optical fiber connector used in each line dimension, and The number of wavelengths used by the local add/drop module and other parameters can flexibly adjust the number of connector adapting units and the insertion position on the backplane, which is highly flexible and versatile.
  • optical fiber connection equipment or the combination of optical cross-connect unit and connector adapting unit in heterogeneous ROADM sites has been described as an example, but it is not limited to heterogeneous ROADM sites.
  • the optical fiber connection device of this embodiment (or a combination of an optical cross-connect unit and a connector adaptor unit) can be used for optical fiber interconnection of M optical path modules in any ROADM site; the ROADM site can be a heterogeneous ROADM site or It can be a homogeneous ROADM site.
  • the M optical path modules in the ROADM site can all come from different manufacturers (that is, all heterogeneous); alternatively, some of the optical path modules can be from different manufacturers and some of the optical path modules are from the same manufacturer. That is, partial heterogeneity. If the ROADM site has the same structure as the ROADM site, the M optical path modules in the ROADM site are from the same manufacturer and are of the same structure.
  • the implementation structures of the optical fiber connection device, the optical cross-connect unit, and the connector adapting unit are the same, which can refer to the foregoing embodiments, and will not be repeated here.
  • the optical fiber connection between the slots, the optical fiber connection between the adapter component and the slot connector, and the optical connection between the slot connector and the slot can be It adopts dual-fiber connection, but it is not limited to this.
  • FIGS. 2a and 3a respectively show an implementation structure of the optical cross-connect unit and the connector adapting unit, but it is not limited to the foregoing implementation structure.
  • the connector adapting unit in the embodiment of the present application can also be implemented by adopting a fiber jumper structure.
  • the jumper fiber structure belongs to the category of jumper fiber. It includes multiple fibers. It is responsible for connecting the fiber connector in the optical fiber connector to the optical cross-connect unit, and then realizes the heterogeneous fiber connectors inside the optical cross-connect unit. The interconnection between. Wherein, the number of fiber cores included in the fiber jumper structure is greater than or equal to the sum of the number of fiber cores in the optical fiber connector connected to it.
  • Figure 6 shows five fiber jumper structures 61-65. These five fiber jumper structures correspond to five different fiber connectors. These five fiber jumper structures are just examples. As shown in Fig. 6, one end of the five fiber jumper structures 61-65 is connected to an optical fiber connector, and the other end is connected to an optical cross-connect unit.
  • the fiber jumper structure 65 is used for adapting connection with a fiber optic connector, and the fiber optic connector includes 6 pairs of LC connectors.
  • the optical cross-connect unit can adopt the implementation structure provided in the foregoing embodiment, or can be implemented with an all-optical cross backplane or a traditional optical fiber connection box. This implementation is relatively simple and low in cost.
  • an extension cord of a standard optical fiber connector (for example, MPO or LC) can be used for connection between it and the optical fiber connector.

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Abstract

本申请实施例提供一种光交叉连接单元、连接器适配单元以及光纤连接设备。在本申请实施例中，针对各路异构光纤连接器提供连接器适配单元，通过不同连接器适配单元与各路异构光纤连接器适配连接，进一步通过光交叉连接单元与不同连接器适配单元进行连接，实现不同连接器适配单元之间的光纤互联，进而达到将各路异构光纤连接器进行光纤互联的目的，解决了异构光纤连接器之间的互联问题，使得各种异构光纤连接器能够用于开放异构的ROADM站点中，有利于简化异构ROADM站点的实现。

Description

光交叉连接单元、连接器适配单元以及光纤连接设备
本申请要求2020年03月23日递交的申请号为202010208858.2、发明名称为“光交叉连接单元、连接器适配单元以及光纤连接设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及光通信技术领域，尤其涉及一种光交叉连接单元、连接器适配单元以及光纤连接设备。
背景技术
可重构光分插复用器(Reconfigurable Optical Add-Drop Multiplexer，ROADM)站点是光传输网中的一种站点，其内部的光路模块通常包含至少一个线路侧模块，可以在该站点上完成光通道的上下路(Add/Drop)，以及该站点不同方向之间波长级别的交叉调度。
在ROADM站点中，随着本地上下路模块和/或线路侧模块(如WSS)数量的增多，线路侧模块之间以及线路侧模块与本地上下路模块之间的连纤关系将非常复杂。为了简化ROADM站点中各光路模块之间的连纤关系，传统做法是各光路模块采用高集成度的光纤连接器，由光纤连接器将各光路模块中的光纤端口连接到一个光纤连接盒(Fiber shuffle)上；在Fiber shuffle内部再实现各个光纤端口间的光纤互联。
在开放解耦的光传输网中，ROADM站点可能是异构的，即ROADM站点中的光路模块是由不同厂商提供的。不同厂家使用的光纤连接器的数量、类型和排纤线序是不一致的，但是，现有Fiber shuffle要求光纤连接器的数量、形式和排纤线序是一致的，因此现有Fiber shuffle无法直接用于异构ROADM站点中。
发明内容
本申请实施例提供一种光交叉连接单元、连接器适配单元以及光纤连接设备，用以解决异构光纤连接器之间的光纤互联问题。
本申请实施例提供一种光纤连接设备，用于对M路异构光纤连接器进行光纤互联，所述设备包括：光交叉连接单元和M个连接器适配单元，M是≥2的自然数；其中，一个连接器适配单元用于与一路光纤连接器适配连接；所述光交叉连接单元与所述M个连接器适配单元光连接，用于实现所述M个连接器适配单元之间的光纤互联。
本申请实施例还提供一种光交叉连接单元，包括背板，所述背板上开设有N个槽位，每个槽位用于可插拔地与一个连接器适配单元连接；每个槽位具有至少一个光纤端口，所述N个槽位中的光纤端口按照设定的光纤互联方式进行光纤互联；其中，N是≥2的自然数。
本申请实施例还提供一种连接器适配单元，包括适配板卡；所述适配板卡的一面设有槽位插接件，另一面设有至少一个适配组件；所述槽位插接件用于可插拔地与光交叉连接单元中的一个槽位连接，所述至少一个适配组件与一路光纤连接器适配连接；在所述适配板卡内部，实现所述至少一个适配组件与所述槽位插接件之间的光纤端口和/或排纤线序转换。
本申请实施例还提供一种光纤连接设备，用于对ROADM站点中的M个光路模块进行光纤互联，所述设备包括：光交叉连接单元和M个连接器适配单元，M是≥2的自然数；其中，一个连接器适配单元用于与一个光路模块使用的光纤连接器适配连接；所述光交叉连接单元与所述M个连接器适配单元光连接，用于实现所述M个连接器适配单元之间的光纤互联。
在本申请实施例中，针对各路异构光纤连接器提供连接器适配单元，通过不同连接器适配单元与各路异构光纤连接器适配连接，进一步通过光交叉连接单元与不同连接器适配单元进行光连接，实现不同连接器适配单元之间的光纤互联，进而达到将各路异构光纤连接器进行光纤互联的目的，解决了异构光纤连接器之间的互联问题，使得各种异构光纤连接器能够用于开放异构的ROADM站点中，有利于简化异构ROADM站点的实现。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1为本申请示例性实施例提供的一种光纤连接设备的结构示意图；
图2a为本申请示例性实施例提供的光交叉连接单元的一种结构示意图；
图2b为本申请示例性实施例提供的光交叉连接单元中各槽位内部一种互联关系示意图；
图3a为本申请示例性实施例提供的连接器适配单元的一种结构示意图；
图3b为本申请示例性实施例提供的连接器适配单元中适配组件与槽位插接件之间 的一种光纤连接关系示意图；
图4a为本申请示例性实施例提供的连接器适配单元所包含的适配组件以及其与背板槽位互联的状态示意图；
图4b为本申请示例性实施例提供的连接器适配单元所包含的适配组件以及其与背板槽位互联的状态示意图；
图4c为本申请示例性实施例提供的连接器适配单元所包含的适配组件以及其与背板槽位互联的状态示意图；
图5a为本申请示例性实施例提供的一种27槽位的背板状态示意图；
图5b为本申请示例性实施例提供的厂家X对应的连接器适配单元的一种示意图；
图5c为本申请示例性实施例提供的厂家Y对应的连接器适配单元的一种示意图；
图5d所示为厂家X对应的连接器适配单元中适配板卡内部的连纤关系以及与光交叉连接单元中背板上的槽位的互联关系；
图5e所示为厂家Y对应的连接器适配单元中适配板卡内部的连纤关系以及与光交叉连接单元中背板上的槽位的互联关系；
图6为本申请示例性实施例提供的几种跳纤结构及其连接状态的示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
针对开放异构的ROADM站点所面临的异构光纤连接器之间的光纤互联问题，在本申请实施例中，针对各路异构光纤连接器提供连接器适配单元，通过不同连接器适配单元与各路异构光纤连接器适配连接，进一步通过光交叉连接单元与不同连接器适配单元进行光连接，实现不同连接器适配单元之间的光纤互联，进而达到将各路异构光纤连接器进行光纤互联的目的，解决了异构光纤连接器之间的互联问题，使得各种异构光纤连接器能够用于开放异构的ROADM站点中，有利于简化异构ROADM站点的实现。
以下结合附图，详细说明本申请各实施例提供的技术方案。
图1为本申请示例性实施例提供的一种光纤连接设备的结构示意图。如图1所示，该光纤连接设备100包括：光交叉连接单元20和M个连接器适配单元10；光交叉连接 单元20和M个连接器适配单元10相互配合，可对M路异构光纤连接器进行光纤互联。其中，M是≥2的自然数。
首先，对本申请实施例中的M路异构光纤连接器进行简单解释说明。对任意一路光纤连接器来说，其可以包含一种光纤连接器，且该种光纤连接器的数量可以是一个也可以是多个。例如，一路光纤连接器只包含1个或多个MPO连接器。又例如，一路光纤连接器只包含1对或多对LC连接器。当然，对任意一路光纤连接器来说，其也可以包含多种光纤连接器，且每种光纤连接器的数量可以是一个也可以是多个。例如，一路光纤连接器包含一个MPO连接器和多对LC连接器。又例如，一路光纤连接器包含多个MPO连接器和1对LC连接器。进一步，对MPO连接器来说，其使用到的光纤编号以及排纤线序都有可能不同。例如，以12芯的MPO连接器为例，有的使用编号为1-12的纤芯，有的使用编号为3-10的纤芯；仍以12芯的MPO连接器为例，有的排纤线序为线序A，有的排纤线序为线序B，有些排纤线序为线序C。其中，对于任意两路光纤连接器来说，只要所包含的光纤连接器的类型、数量、以及光纤连接器中的光纤芯数和排纤线序等中至少一种信息不同，就意味着这两路光纤连接器是异构的。例如，假设一路光纤连接器包含8个12芯MPO连接器，每个MPO连接器内部使用3～10芯(即4对光纤端口)，一共具有32对光纤端口；另一路光纤连接器包含3个12芯MPO连接器，每个MPO连接器内部使用1～12芯(即6对光纤端口)，一共具有18对光纤端口，这两路光纤连接器是异构的。
在本实施例中，M路异构光纤连接器中的“异构”主要是指不同路光纤连接器之间的异构，当然，也可以包含同一路光纤连接器中各光纤连接器之间的异构情况。其中，一路光纤连接器对应一个连接器适配单元10，连接器适配单元10的数量可根据需要互联的异构光纤连接器的路数灵活而定。例如，若3路异构光纤连接器需要进行光纤互联，则连接器适配单元10的数量为3个；若2路异构光纤连接器需要进行光纤互联，则连接器适配单元10的数量为2个；若16路异构光纤连接器需要进行光纤互联，则连接器适配单元10的数量为16个；等等。
在本实施例中，以M路异构光纤连接器需要光纤互联为例展开说明，且对这M路异构光纤连接器的来源不做限定。针对这M路异构光纤连接器分别提供连接器适配单元10，即提供M个连接器适配单元10；每个连接器适配单元10连接于一路光纤连接器与光交叉连接单元20之间，即每个连接器适配单元10的一端与一路光纤连接器适配连接，另一端与光交叉连接单元20光连接。
其中，若一路光纤连接器包含一个光纤连接器，那么与该路光纤连接器适配连接的连接器适配单元10与所述一个光纤连接器适配连接；若一路光纤连接器包含多个光纤连接器，那么与该路光纤连接器适配连接的连接器适配单元10与所述多个光纤连接器适配连接。其中，连接器适配单元10与一路光纤连接器适配连接可理解为：连接器适配单元可按照该路光纤连接器中各光纤连接器所支持的接口方式与各光纤连接器进行光连接。
进一步，M个连接器适配单元10与光交叉连接单元20进行光连接，在光交叉连接单元20内部实现M个连接器适配单元10之间的光纤互联，从而达到将M路异构光纤连接器进行光纤互联的目的。这就解决了异构光纤连接器之间的互联问题，使得各种异构光纤连接器能够用于开放异构的ROADM站点中，有利于降低异构ROADM站点内部的连纤关系，可简化异构ROADM站点的实现。
在本申请实施例中，并未限定光交叉连接单元20的实现结构。如图2a所示，为本申请实施例提供的一种光交叉连接单元20的结构示意图。如图2a所示，该光交叉连接单元20包括：背板21；背板21上开设有N个槽位(Slot)22，N是≥1的自然数。这些槽位22是光交叉连接单元20与连接器适配单元10互联的接口。可选地，这些槽位22支持可插拔的连接方式，每个槽位22可以与一个连接器适配单元10可插拔地连接。
需要说明的是，本实施例并不限定背板21上所开设槽位22的数量，可以根据需要灵活设定。另外，槽位22的数量与光纤连接设备100所包含的连接器适配单元10的数量之间没有必然联系。例如，若预先可以确定需要进行光纤互联的光纤连接器的路数，则可以根据该路数确定连接器适配单元10的数量和背板21上所需开设槽位22的数量，得到符合需求的定制化光纤连接设备100。又例如，也可以按照行业标准、经验或光传输网的部署需求等，将槽位数量规格化，从而得到包含不同槽位数量的光纤连接设备100或光交叉连接单元20，例如可以生产包含5个槽位、10个槽位、16个槽位、32个槽位或27个槽位的光纤连接设备100或光交叉连接单元20。无论是哪种确定槽位数量的方式，对最终实现的光纤连接设备100来说，其所包含的连接器适配单元10的数量不应超过其所包含的槽位数量，即应满足N≥M。
进一步，每个槽位22具有至少一个光纤端口，在附图中未示出。可选地，不同槽位22可以具有相同数量的光纤端口、相同的槽位结构以及相同的槽位形态，从而实现一种标准化的接口形态。关于每个槽位22包含的光纤端口的数量不做限定，可根据光互联需求和具体场景灵活确定。例如，每个槽位22可以包含10、20、24、32或48个光纤端口。其中，每个光纤端口可与一根光纤连接，每个槽位22包含的光纤接口的数量也就是该槽 位可互联的光纤芯数。
其中，N个槽位22中的光纤端口按照设定的光纤互联方式进行光纤互联，这样插接到不同槽位22中的连接器适配单元10之间就会按照相应方式实现互联。对图1所示光纤连接设备100来说，其包含的M个连接器适配单元10可插拔地与M个槽位22连接，以借助M个槽位22之间的光纤互联实现M个连接器适配单元10之间的光纤互联；这里M个槽位22可以是N个槽位22中的部分槽位或全部槽位。在本实施例中，并不限定N个槽位22中光纤端口之间的光纤互联方式，可根据应用场景和互联需求灵活设定。例如，N个槽位22之间可以全部相互光连接；或者，也可以是一部分槽位22之间相互光连接，而另一部分槽位22与前一部分槽位22之间光连接，但另一部分槽位之间无连接；或者，也可以是特定槽位与特定槽位之间光连接，等等。对于光连接的两个槽位22，这两个槽位之间的光连接可以包含光信号收发两个方向上的连接，这表示这两个槽位22之间可由一对光纤端口(即两个光纤端口)对应连接，则在这两个槽位22之间可以进行光信号收发。
在本申请实施例中，并未限定M路异构光纤连接器的来源，可以是任何光传输网中需要进行光纤互联的两路或两路以上的光纤连接器。在一可选实施例中，随着开放异构的光传输网的发展，光传输网中可能出现开放异构的ROADM站点，异构的ROADM站点是指该ROADM站点中的光路模块会由不同厂商提供，这些光路模块使用的光纤连接器的类型、数量和排纤线序会有所不同。在该可选实施例中，M路异构光纤连接器可以来自异构的ROADM站点，即该异构的ROADM站点中的线路侧模块和/或本地上下路模块使用的光纤连接器构成M路异构光纤连接器。在此说明，在本申请实施例中，异构ROADM站点中的光路模块是对该异构ROADM站点中的本地上下路模块和线路侧模块的统称，所述光路模块可以是异构ROADM站点中的本地上下路模块，也可以是异构ROADM站点中的线路侧模块。更进一步，本地上下路模块(Add/Drop，A/D)可分为不固定方向的本地上下路模块(Directionless A/D模块)和固定方向的本地上下路模块(Directioned A/D模块)。其中，异构ROADM站点中一个线路侧模块使用的光纤连接器构成M路异构光纤连接器中的一路；或者，异构ROADM站点中一个线路侧模块和一个或几个Directioned A/D模块使用的光纤连接器构成M路异构光纤连接器中的一路；或者，异构ROADM站点中几个Directioned A/D模块使用的光纤连接器构成M路异构光纤连接器中的一路；或者，异构ROADM站点中一个Directionless A/D模块使用的光纤连接器构成M路异构光纤连接器中的一路。另外，在本申请实施例中，也不对异构 ROADM站点中的本地上下路模块和线路侧模块的数量进行限定。异构ROADM站点可以包含一个或多个本地上下路模块，同理，异构ROADM站点也可以包含一个或多个线路侧模块。
在上述可选实施例中，在异构的ROADM站点中，不同厂商可以将其提供的光路模块接入各自使用的光纤连接器来简化光路模块之间的连纤关系，进而各厂商使用的光纤连接器连接到本申请实施例提供的光纤连接设备100中实现异构光纤连接器之间的光纤互联，具体地，各光路模块使用的光纤连接器分别与光纤连接设备100中的一个连接器适配单元10光连接，连接器适配单元10插接到光交叉连接单元20中的槽位22上，借助于这些槽位22之间的光连接关系实现各光路模块使用的光纤连接器之间的光互联，进而实现各光路模块之间的光互联，解决了异构光纤连接器之间的光互联问题，间接解决了异构ROADM站点中异构光路模块之间的光互联问题，且可简化异构ROADM站点内部的连纤关系，有利于简化异构ROADM的实现。
进一步，根据ROADM站点中光路模块类别的不同，在本申请实施例中可将连接器适配单元划分为第一类连接器适配单元和第二类连接器适配单元两大类。其中，第一类连接器适配单元是指用于与异构的ROADM站点中线路侧模块和/或Directioned A/D模块使用的光纤连接器适配连接的连接器适配单元；第二类连接器适配单元是指用于与该ROADM站点中Directionless A/D模块使用的光纤连接器适配连接的连接器适配单元。
基于上述对连接器适配单元的分类，可以对光交叉连接单元20中的N个槽位22进行相应分类，或者进行分类使用。例如，光交叉连接单元20中的N个槽位22可以包括用于连接第一类连接器适配单元的N1个槽位。其中，N1是≥1的自然数，且N1≤N。若N1＜N，表示光交叉连接单元20中的N个槽位22中有一部分槽位是用于连接第一类连接器适配单元的；若N1＝N，表示光交叉连接单元20中的N个槽位22全部用于连接第一类连接器适配单元，即不包含用于连接第二类连接器适配单元的槽位。对任意一个第一类连接器适配单元来说，其可以使用(N1个槽位中的任意一个槽位。
进一步，在N1＜N的情况下，光交叉连接单元20中的N个槽位22中还可以包括用于连接第二类连接器适配单元的N2个槽位。其中，N2是≥1的自然数，且N1+N2≤N。若N1+N2＝N，表示光交叉连接单元20中的N个槽位22全部被使用，一部分用于连接第一类连接器适配单元，一部分用于连接第二类连接器适配单元。若N1+N2＜N，表示光交叉连接单元20中的N个槽位22未被全部使用，一部分用于连接第一类连接器适配单元，一部分用于连接第二类连接器适配单元，除此之外还有一部分空余的槽位。对 于这些空余槽位的使用情况不做限定，例如可连接后续新出现的其它连接器适配单元。对任意一个第二类连接器适配单元来说，其可以使用N2个槽位中的任意一个槽位。
需要说明的是，可以根据上述方式对N个槽位22进行分类或分类使用，也可以不对N个槽位22进行分类或分类使用，即所有槽位22不做区分都是相同的。其中，根据对槽位分类或分类使用情况的不同，槽位之间的光纤端口互联方式也会有所不同。例如，若光交叉连接单元20中的N个槽位22全部用于连接第一类连接器适配单元，即N1＝N的情况，则N个(或N1个)槽位22之间全部相互光连接，形成全Mesh网络，如图2b所示。在图2b中，N个槽位22被表示为SLOT_1、SLOT_2、SLOT_3、SLOT_4、SLOT_5、SLOT_6、……以及SLOT_N，每两个槽位中的两个光纤端口通过两根光纤进行连接，即采用对纤双向连接。这样，当ROADM站点中各线路侧模块使用的光纤连接器通过第一类连接器适配单元插接到这些槽位22上时，这些线路侧模块之间就实现了光连接。若光交叉连接单元20中的N个槽位22中有一部分用于连接第一类连接器适配单元，有一部分用于连接第二类连接器适配单元，即N1+N2≤N的情况，则N1个槽位之间全部相互光连接，形成全Mesh网络；用于连接第二类连接器适配单元的N2个槽位中每个槽位分别与用于连接第一类连接器适配单元的N1个槽位光连接。这样，当ROADM站点中各线路侧模块使用的光纤连接器通过第一类连接器适配单元插接到N1个槽位22中的槽位上，且不固定方向的本地上下路模块使用的光纤连接器通过第二类连接器适配单元插接到N2个槽位22中的槽位上时，这些线路侧模块之间以及线路侧模块与不固定方向的本地上下路模块之间就实现了光连接。
进一步可选地，考虑到不固定方向的本地上下路模块之间无需光连接，因此用于连接第二类连接器适配单元的N2个槽位之间可以不连接，这可减少光纤连接的数量，降低光纤连接的复杂度。当然，用于连接第二类连接器适配单元的N2个槽位之间也可以全部相互光连接或部分光连接，根据需求而定。其中，在用于连接第二类连接器适配单元的N2个槽位之间相互光连接的情况下，意味着N1+N2个槽位之间的光纤端口全部相互光连接，这会在N1+N2个槽位之间形成全Mesh网络。在这种情况下，若用于连接第二类连接器适配单元的某个或某几个槽位处于空闲状态，还可以征用这些空闲槽位，在这些槽位上连接第一类连接器适配单元，增加光纤互联的灵活性。
相应地，在对连接器适配单元进行分类的情况下，光纤连接设备100中可能包含不同类型的连接器适配单元。例如，光纤连接设备100中包含的M个连接器适配单元10中可以包括M1个第一类连接器适配单元，M1是≥1的自然数，且M1≤M。若M1＜M， 表示M个连接器适配单元10中有一部分是第一类连接器适配单元；若M1＝M，表示M个连接器适配单元10全部是第一类连接器适配单元，即不包含第二类连接器适配单元。
进一步，在M1＜M的情况下，M个连接器适配单元10中还可以包括M2个第二类连接器适配单元。其中，M2是≥1的自然数，且M1+M2≤M。若M1+M2＝M，表示M个连接器适配单元10中全部是第一类连接器适配单元和第二类连接器适配单元。若M1+M2＜M，表示M个连接器适配单元10中除了第一类连接器适配单元和第二类连接器适配单元之外，还可能包含其他类连接器适配单元。关于其他类连接器适配单元不做限定。
在本申请各实施例中，并不限定连接器适配单元的实现结构。如图3a所示，为本申请实施例提供的一种连接器适配单元10的结构示意图。如图3a所示，该连接器适配单元10包括：适配板卡11；适配板卡11的一面设有槽位插接件12，可插拔地与图2a所示背板21上的一个槽位22连接；适配板卡11的另一面设有至少一个适配组件13，与一路光纤连接器适配连接；在适配板卡11内部，实现至少一个适配组件13与槽位插接件12之间的光纤端口和/或排纤线序转换。其中，在适配板卡11内部，至少一个适配组件13与槽位插接件12之间的光纤连接关系如图3b所示。在图3b中，Port_1、Port_2、Port_3、…….以及Port_m表示m个适配组件13，具体表示m个适配组件13的接口，m是≥1的自然数，这些接口通过光纤与槽位插接件12光连接。如图3b所示，不同适配组件13所支持的光纤芯数不尽相同，当然不同适配组件13所支持的排纤线序也不尽相同，在图3b中未进行图示。进一步，如图3b所示，槽位插接件12可插接到光交叉连接单元20上的一个槽位中，在图3b中，以槽位插接件12插接到槽位SLOT_1中为例，但并不限于此。
在本实施例中，并不限定适配板卡11上适配组件13的数量，具体可视与其所属连接器适配单元10适配连接的一路光纤连接器的情况而定。在本实施例中，并不限定M路异构光纤连接器中各路光纤连接器所包括的光纤连接器的类型和数量。例如，每一路光纤连接器可以包括一种或多种光纤连接器，且每种光纤连接器的数量为一个或多个。鉴于此，本实施例中设置于适配板卡11另一面上的适配组件13可以包括一种或多种光纤连接器的适配组件，且每种光纤连接器的适配组件的数量为一个或多个，具体可视连接器适配单元10所连接的一路光纤连接器所包含的光纤连接器的类型和数量而定。下面以异构的ROADM站点为例，结合图4a、图4b、图4c对连接器适配单元10所包含的适配组件13的情况以及其插接到背板槽位上的状态进行示例性说明。
在本申请一可选实施例中，假设在异构的ROADM站点中，包括3个线路侧模块、Directionless A/D模块和3个Directioned A/D模块，可选地，在这些线路侧模块以及本地上下路模块中，光信号收发两个方向上可以均采用波长选择开关(Wavelength Selective Switch，WSS)实现。这些线路侧模块以及本地上下路模块来自于不同的厂家，且不同厂家使用不同的光纤连接器将这些WSS连接到本实施例的光纤连接设备中实现光纤互联。其中，假设第一个线路侧模块(对应为线路方向1)使用的4个排纤线序为A的MPO连接器，第二个线路侧模块(对应线路方向2)使用3个排纤线序为A的MPO连接器，第三个线路侧模块(对应线路方向3)使用3个排纤线序为B的MPO连接器，Directionless A/D模块使用2个排纤线序为C的MPO连接器，3个Directioned A/D模块使用3对LC连接器(即1个Directioned A/D模块使用1对LC连接器)。
相应地，如图4a所示，光纤连接设备100包括与3个线路侧模块对应的3个连接器适配单元101-103；其中，与第一个线路侧模块对应的连接器适配单元101上包含4个排纤线序为A的MPO适配组件101a，这4个MPO适配组件101a分别与第一个线路侧模块使用的4个排纤线序为A的MPO连接器互联；与第二个线路侧模块对应的连接器适配单元102上包含3个排纤线序为A的MPO适配组件101a，这3个MPO适配组件101a分别与第二个线路侧模块使用的3个排纤线序为A的MPO连接器互联；与第三个线路侧模块对应的连接器适配单元103上包含3个排纤线序为B的MPO适配组件103a，这3个MPO适配组件103a分别与第三个线路侧模块使用的3个排纤线序为B的MPO连接器互联。进一步，如图4b所示，光纤连接设备100还包括与Directionless A/D模块对应的连接器适配单元104；与Directionless A/D模块对应的连接器适配单元104上包含2个排纤线序为C的MPO适配组件104a，这2个MPO适配组件104a分别与Directionless A/D模块使用的2个排纤线序为C的MPO连接器互联。进一步，如图4c所示，光纤连接设备100还包括与3个Directioned A/D模块对应的连接器适配单元105；与3个Directioned A/D模块对应的连接器适配单元105上包含3个LC适配组件105a，每个LC适配组件105a与一个Directioned A/D模块使用的一对LC连接器互联；其中，一对LC连接器连接一个固定的线路方向(即一个Directioned A/D模块)，因此与一对LC连接器互联的LC适配组件可连接一个固定的线路方向，但3个LC适配组件可以连接不同的线路方向。在图4a-图4c中还示出了背板21以及槽位22等结构，关于这些结构可参见前述实施例的描述。
另外，参见图4a、图4b、图4c可知，各光路模块对应的连接器适配单元可插接在 光交叉连接单元20的任意槽位。当然，在对光交叉连接单元20上的槽位和连接器适配单元进行分类的情况下，各光路模块对应的连接器适配单元可插接在对应类别的槽位上，例如线路侧模块对应的连接器适配单元属于第一类连接器适配单元，可插接在用于连接第一类连接器适配单元的槽位上；又例如，Directionless A/D模块对应的连接器适配单元属于第二类连接器适配单元，可插接在用于连接第二类连接器适配单元的槽位上。由上述可知，对每个第一类连接器适配单元来说，其适配板卡上可以单独包括用于与线路侧模块使用的光纤连接器适配连接的适配组件，如图4a所示，或者，也可以同时包括用于与线路侧模块使用的光纤连接器适配连接的适配组件以及用于与Directioned A/D模块使用的光纤连接器适配连接的适配组件，如后续图5b和图5d所示；或者，也可以单独包括用于与Directioned A/D模块使用的光纤连接器适配连接的适配组件，如图4c所示。相应地，对每个第二类连接器适配单元来说，其适配板卡上可以单独包括用于与Directionless A/D模块使用的光纤连接器适配连接的适配组件，如图4b所示。
无论是哪类连接器适配单元，其适配板卡11上各适配组件中包含光纤端口，用于与槽位插接件中的光纤端口进行光纤互联，其中，一个光纤端口连接一根光纤。在本申请实施例中，并不限定适配板卡11上至少一个适配组件中光纤端口数量之和与槽位插接件中光纤端口总数量之间的关系，两者可能相同，也可能不相同。在不相同的情况下，适配板卡11上至少一个适配组件中光纤端口数量之和可能大于槽位插接件中光纤端口总数量；或者，适配板卡11上至少一个适配组件中光纤端口数量之和也可能小于槽位插接件中光纤端口总数量，具体视实际设计和应用需求而定。鉴于此，适配板卡11上各适配组件中的光纤端口与槽位插接件中的光纤端口进行互联时的对应关系可能有多种情况，下面举例说明。
情况1：适配板卡11上至少一个适配组件中的部分光纤端口与槽位插接件中至少部分光纤端口(包括部分或全部两种情况)互联，适配板卡11上至少一个适配组件中的另一部分光纤端口空余。情况1的一种示例如图5e所示。
情况2：适配板卡11上至少一个适配组件中的部分光纤端口与槽位插接件中至少部分光纤端口互联，适配板卡11上至少一个适配组件中的另一部分光纤端口与设置于适配板卡11另一面(即适配组件所在的一面)上的至少一对LC连接器连接；这样，可以通过LC连接器将多余的光纤端口连出来另作他用。情况2的一种示例如图5d所示。在图5d中，LC连接器用于连接Directioned A/D模块，LC连接器对应的适配组件LC-X9上的光纤端口用于互联Directioned A/D模块使用的LC连接器。
情况3：适配板卡11上至少一个适配组件中的全部光纤端口与槽位插接件中至少部分光纤端口互联。
下面结合一个具体的例子，对本申请上述实施例提供的光纤连接设备及其使用过程进行详细说明。如图5a所示，本申请实施例提供的光纤连接设备中的光交叉连接单元包含27个槽位分别为slot-1至slot-27。槽位slot-1至slot-9之间全连接(full Mesh)，槽位slot-10至slot-27分别连接槽位slot-1至slot-9，但槽位slot-10至slot-27之间相互无连接。在本实施例中，每个槽位采用至少一个第一MT盲插件构成，至少一个第一MT盲插件的光纤端口构成该槽位中的光纤端口。在本实施例中，一共27个槽位，最多可用27个槽位，每个槽位最多可与其它26个槽位采用对纤互联，这意味着每个槽位最多有26对纤(即52根)。基于此，每个槽位可以采用5个12芯的第一MT盲插件，形成具有60光纤端口的槽位。
其中，槽位slot-1至slot-9用于连接第一类连接器适配单元，即用于线路侧模块间的光纤互联，可选地，槽位slot-9可作为备用槽位，故在图5d和图5e中仅对槽位slot-1至slot-8进行了图示；槽位slot-10至slot-27用于连接第二类连接器适配单元，即用于本地上下路模块与线路侧模块间的光纤互联。
假设，本实施例提供的光纤连接设备应用于异构ROADM站点中，该异构ROADM站点包括厂家X(1x32)和厂家Y(1x20)提供的线路侧模块，以及厂家X提供的Directioned A/D模块；其中，厂家X提供的线路侧模块采用了8个MPO连接器进行连接，厂家X提供的Directioned A/D模块采用了1对LC连接器进行连接；厂家Y提供的线路侧模块采用3个MPO连接器和2对LC连接器进行连接。基于此，针对厂家X，可以设计一款前端包含8个MPO适配组件和1个LC适配组件的连接器适配单元，如图5b所示；其中，8个MPO适配组件用于与线路侧模块使用的8个MPO连接器互联，1对LC适配组件用于与Directioned A/D模块使用的1对LC连接器互联。针对厂家Y可以设计一款前端包含3个MPO适配组件和2个LC适配组件的连接器适配单元，如图5c所示；其中，3个MPO适配组件用于与线路侧模块使用的3个MPO连接器互联，2个LC适配组件用于与线路侧模块使用的2对LC连接器互联。进一步，这两个连接器适配单元的槽位插接件采用第二MT盲插件实现，每个槽位插接件包含至少一个第二MT盲插件，至少一个第二MT盲插件的光纤端口构成槽位插接件的光纤端口。在本实施例中，并不限定每个槽位插接件包含的第二MT盲插件的数量，例如可以采用6个12芯的第二MT盲插件，形成具有72个光纤端口的槽位插接件。其中，第一MT盲插件与第二MT盲插件适配， 例如，一个是MT盲插件的公头，一个是MT盲插件的母头。
其中，图5d是厂家X对应的连接器适配单元中适配板卡内部的连纤关系以及与光交叉连接单元中背板上的槽位的互联关系。如图5d所示，厂家X对应的连接器适配单元中包括8个MPO适配组件，分别为MPO-X1、MPO-X2、MPO-X3、…….以及MPO-X8，1个LC适配组件LC-X9，以及由6个MT盲插件形成的槽位插接件；6个MT盲插件分别为MT-X1、MT-X2、MT-X3、MT-X4、MT-X5和MT-X6。因为光交叉连接单元最多只有27个槽位，所以厂家X最多也只能通过27个槽位使用27个线路维度，这意味着槽位插接件需要提供52根纤，1个MT盲插件12芯，5个MT盲插件MT-X1-MTX5就够了，因此MT-X6可以留空。在图5d中，以厂家X对应的连接器适配单元插接到槽位slot-1为例进行图示。另外，由于LC适配组件LC-X9是与Directioned A/D模块使用的1对LC连接器互联的，故只需与一个线路方向互联即可，在本实施例中，以LC适配组件LC-X9与厂家X提供的线路侧模块(即本端的线路方向)互联为例，因此LC适配组件LC-X9只需与MPO-X1至MPO-X8中任一个互联，在图5d中以LC-X9与MPO-X8互联为例进行图示。在此说明，在本实施例中，以Directioned A/D模块由厂家X提供为例进行说明，但并不限于厂家X，Directioned A/D模块也可以由其它厂家提供。
其中，图5e所示是厂家Y对应的连接器适配单元中适配板卡内部的连纤关系以及与光交叉连接单元中背板上的槽位的互联关系。如图5e所示，厂家Y对应的连接器适配单元中包括2个LC适配组件LC-Y1和LC-Y2，3个MPO适配组件MPO-Y3、MPO-Y4、MPO-Y4，以及由6个MT盲插件形成的槽位插接件；6个MT盲插件分别为MT-Y1、MT-Y2、MT-Y3、MT-Y4、MT-Y5和MT-Y6。因为厂家Y最多可以通过20个槽位使用20个线路维度，这意味着槽位插接件需要提供38根纤，1个MT盲插件12芯，4个MT盲插件MT-Y1-MT-Y4就够了，因此MT-Y5和MT-Y6可以留空，故在图5e中未示出MT-Y5和MT-Y6。在图5e中，以厂家Y对应的连接器适配单元插接到槽位slot-2为例进行图示。
需要说明的是，本申请实施例除了提供光纤连接设备之外，也可以单独对光交叉连接单元或连接器适配单元进行保护，并且光交叉连接单元或连接器适配单元也可以作为独立产品被生产、制造或使用。基于此，采用本申请实施例提供的技术方案，可以针对不同的厂家使用的光纤连接器定制专用的光纤连接设备、光交叉连接单元或连接器适配单元，可利用具有标准接口的光交叉连接单元实现异构光纤连接器之间的光纤互联，进而实现不同线路侧模块之间以及本地上下路模块与线路侧模块之间的光纤互联(例如全 连接)，可解耦不同维度的ROADM厂家，能够用于开放异构的ROADM站点之中。
另外，本申请实施例提供的连接器适配单元可在背板槽位上随意插拔，因此可以根据ROADM站点中的线路侧模块数量，每个线路维度上使用的光纤连接器的情况，以及本地上下路模块使用的波长数量等参数灵活地调整连接器适配单元的数量和在背板上的插接位置，灵活性和通用性较强。
在上述部分实施例中，重点以光纤连接设备(或者是光交叉连接单元和连接器适配单元组合使用)在异构ROADM站点中的应用为例进行了说明，但并不限于异构ROADM站点。本实施例的光纤连接设备(或者是光交叉连接单元和连接器适配单元组合使用)可用于对任何ROADM站点中的M个光路模块进行光纤互联；该ROADM站点可以是异构ROADM站点，也可以是同构ROADM站点。若该ROADM站点是异构ROADM站点，则该ROADM站点中的M个光路模块可以全部来自不同厂商(即全部异构)；或者，也可以部分光路模块来自不同厂商，部分光路模块来自相同厂商，即部分异构。若该ROADM站点同构ROADM站点，则该ROADM站点中的M个光路模块来自同一厂商，是同构的。无论是应用于异构ROADM站点还是应用于同构ROADM站点，光纤连接设备、光交叉连接单元以及连接器适配单元的实现结构均相同，可参见前述实施例，在此不再赘述。
在此说明，在本申请实施例中，各槽位之间的光纤连接、适配组件与槽位插接件之间的光纤连接以及槽位插接件与槽位之间的光连接可以是采用对纤双向连接，但并不限于此。
在上述实施例中，图2a和图3a分别给出了光交叉连接单元以及连接器适配单元的一种实现结构，但并不限于上述实现结构。如图6所示，本申请实施例中的连接器适配单元还可以采用跳纤结构实现。跳纤结构属于跳接光纤的范畴，其包括多跟光纤，负责将一路光纤连接器中的光纤连接器连接到光交叉连接单元上，进而在光交叉连接单元内部实现各路异构光纤连接器之间的互联。其中，跳纤结构中包含的光纤芯数大于或等于其所连接的一路光纤连接器中的光纤芯数之和。图6中给出了5种跳纤结构61-65，这5种跳纤结构对应5路不同的光纤连接器，这5种跳纤结构仅为示例。如图6所示，5种跳纤结构61-65的一端连接一路光纤连接器，另一端连接光交叉连接单元。
如图6所示，跳纤结构61用于与一路光纤连接器适配连接，该路光纤连接器包含4个排纤线序为A的MPO连接器。假设一个MPO连接器内排放的光纤芯数为12，则该跳纤结构61至少需要包括12*4＝48芯光纤。
如图6所示，跳纤结构62用于与一路光纤连接器适配连接，该路光纤连接器包含3个排纤线序为A的MPO连接器。假设一个MPO连接器内排放的光纤芯数为12，则该跳纤结构62至少需要包括12*3＝36芯光纤。
如图6所示，跳纤结构63用于与一路光纤连接器适配连接，该路光纤连接器包含3个排纤线序为B的MPO连接器。假设一个MPO连接器内排放的光纤芯数为24，则该跳纤结构63至少需要包括24*3＝72芯光纤。
如图6所示，跳纤结构64用于与一路光纤连接器适配连接，该路光纤连接器包含2个排纤线序为C的MPO连接器。假设一个MPO连接器内排放的光纤芯数为24，则该跳纤结构64至少需要包括24*2＝48芯光纤。
如图6所示，跳纤结构65用于与一路光纤连接器适配连接，该路光纤连接器包含6对LC连接器。一对LC连接器内排放的光纤芯数为2，则该跳纤结构65至少需要包括2*6＝12芯光纤。
在连接器适配单元采用跳纤结构实现的情况下，光交叉连接单元可以采用前述实施例提供的实现结构，也可以采用全光交叉背板或者传统的光纤连接盒实现。这种实现方式相对简单，成本较低。
需要说明的是，上述跳纤结构的长度需要根据工程实际情况灵活定制，以满足异构ROADM站点的工程需求。相应地，对上述连接器适配单元来说，在其与光纤连接器之间可以采用标准光纤连接器(例如MPO或LC)的延长线进行连接。
需要说明的是，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、商品或者设备中还存在另外的相同要素。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (25)

  1. 一种光纤连接设备，用于对M路异构光纤连接器进行光纤互联，所述设备包括：光交叉连接单元和M个连接器适配单元，M是≥2的自然数；
    其中，一个连接器适配单元用于与一路光纤连接器适配连接；所述光交叉连接单元与所述M个连接器适配单元光连接，用于实现所述M个连接器适配单元之间的光纤互联。
  2. 根据权利要求1所述的设备，所述光交叉连接单元包括背板，所述背板上开设有N个槽位，每个槽位具有至少一个光纤端口；所述N个槽位中的光纤端口按照设定的光纤互联方式进行光纤互联；
    其中，M个连接器适配单元可插拔地与M个槽位连接，以实现M个连接器适配单元之间的光纤互联；N是自然数，且N≥M。
  3. 根据权利要求2所述的设备，所述M路异构光纤连接器来自于异构的ROADM站点中；所述异构的ROADM站点中的线路侧模块和/或本地上下路模块使用的光纤连接器构成所述M路异构光纤连接器。
  4. 根据权利要求3所述的设备，其中，所述N个槽位中包括用于连接第一类连接器适配单元的N1个槽位，第一类连接器适配单元是指用于与所述异构的ROADM站点中线路侧模块和/或固定方向的本地上下路模块使用的光纤连接器适配连接的连接器适配单元；其中，N1是≥1的自然数，且N1≤N。
  5. 根据权利要求4所述的设备，所述N个槽位中还包括用于连接第二类连接器适配单元的N2个槽位，第二类连接器适配单元是指用于与所述ROADM站点中不固定方向的本地上下路模块使用的光纤连接器适配连接的连接器适配单元；其中，N2是≥1的自然数，且N1+N2≤N。
  6. 根据权利要求5所述的设备，其中，所述N1个槽位之间相互光连接，且所述N2个槽位中每个槽位分别与所述N1个槽位光连接。
  7. 根据权利要求3所述的设备，其中，所述M个连接器适配单元包括M1个第一类连接器适配单元，M1是≥1的自然数，且M1≤M。
  8. 根据权利要求7所述的设备，所述M个连接器适配单元还包括M2个第二类连接器适配单元；M2是≥1的自然数，且M1+M2≤M。
  9. 根据权利要求2-8任一项所述的设备，每个连接器适配单元包括适配板卡；所述适配板卡的一面设有槽位插接件，可插拔地与所述背板上的一个槽位连接；所述适配板卡的另一面设有至少一个适配组件，与一路光纤连接器适配连接；在所述适配板卡内部， 实现所述至少一个适配组件与所述槽位插接件之间的光纤端口和/或排纤线序转换。
  10. 根据权利要求9所述的设备，所述至少一个适配组件中的部分光纤端口与所述槽位插接件中至少部分光纤端口互联，所述至少一个适配组件中的另一部分光纤端口空余；
    或者
    所述至少一个适配组件中的部分光纤端口与所述槽位插接件中至少部分光纤端口互联，所述至少一个适配组件中的另一部分光纤端口与设置于所述适配板卡另一面上的至少一对LC连接器连接；
    或者
    所述至少一个适配组件中的全部光纤端口与所述槽位插接件中至少部分光纤端口互联。
  11. 根据权利要求9所述的设备，每个槽位中设置有第一MT盲插件，所述第一MT盲插件的光纤端口构成所述槽位中的光纤端口；所述槽位插接件包含第二MT盲插件，所述第二MT盲插件的光纤端口构成所述槽位插接件中的光纤端口。
  12. 根据权利要求9所述的设备，每一路光纤连接器包括一种或多种光纤连接器，且每种光纤连接器的数量为一个或多个；相应地，所述至少一个适配组件包括一种或多种光纤连接器的适配组件，且每种光纤连接器的适配组件的数量为一个或多个。
  13. 根据权利要求1所述的设备，所述连接器适配单元采用跳纤结构实现，所述跳纤结构的一端连接一路光纤连接器，另一端连接所述光交叉连接单元；所述跳纤结构中包含的光纤芯数大于或等于其所连接的一路光纤连接器中的光纤芯数之和。
  14. 根据权利要求13所述的设备，所述光交叉连接单元为全光交叉背板或者传统的光纤连接盒。
  15. 一种光交叉连接单元，包括背板，所述背板上开设有N个槽位，每个槽位用于可插拔地与一个连接器适配单元连接；每个槽位具有至少一个光纤端口，所述N个槽位中的光纤端口按照设定的光纤互联方式进行光纤互联；其中，N是≥2的自然数。
  16. 根据权利要求15所述的光交叉连接单元，其中，每个槽位中设置有第一MT盲插件，所述第一MT盲插件的光纤端口构成所述槽位中的光纤端口。
  17. 根据权利要求15或16所述的光交叉连接单元，其中，所述N个槽位中包括用于连接第一类连接器适配单元的N1个槽位，第一类连接器适配单元是指用于与异构的ROADM站点中线路侧模块和/或固定方向的本地上下路模块使用的光纤连接器适配连接 的连接器适配单元；其中，N1是≥1的自然数，且N1≤N。
  18. 根据权利要求17所述的光交叉连接单元，所述N个槽位中还包括用于连接第二类连接器适配单元的N2个槽位，第二类连接器适配单元是指用于与所述异构的ROADM站点中不固定方向的本地上下路模块使用的光纤连接器适配连接的连接器适配单元；其中，N2是≥1的自然数，且N1+N2≤N。
  19. 根据权利要求18所述的光交叉连接单元，其中，所述N1个槽位之间相互光连接，且所述N2个槽位中每个槽位分别与所述N1个槽位光连接。
  20. 一种连接器适配单元，包括适配板卡；所述适配板卡的一面设有槽位插接件，另一面设有至少一个适配组件；所述槽位插接件用于可插拔地与光交叉连接单元中的一个槽位连接，所述至少一个适配组件与一路光纤连接器适配连接；
    在所述适配板卡内部，实现所述至少一个适配组件与所述槽位插接件之间的光纤端口和/或排纤线序转换。
  21. 根据权利要求20所述的连接器适配单元，所述槽位插接件包含第二MT盲插件，所述第二MT盲插件的光纤端口构成所述槽位插接件中的光纤端口。
  22. 根据权利要求20所述的连接器适配单元，所述至少一个适配组件中的部分光纤端口与所述槽位插接件中至少部分光纤端口互联，所述至少一个适配组件中的另一部分光纤端口空余；
    或者
    所述至少一个适配组件中的部分光纤端口与所述槽位插接件中至少部分光纤端口互联，所述至少一个适配组件中的另一部分光纤端口与设置于所述适配板卡另一面上的至少一对LC连接器连接；
    或者
    所述至少一个适配组件中的全部光纤端口与所述槽位插接件中至少部分光纤端口互联。
  23. 根据权利要求20所述的连接器适配单元，所述至少一个适配组件包括一种或多种光纤连接器的适配组件，每种光纤连接器的适配组件的数量为一个或多个。
  24. 根据权利要求20-23任一项所述的连接器适配单元，所述连接器适配单元是与异构的ROADM站点中线路侧模块和/或固定方向的本地上下路模块使用的光纤连接器适配连接的第一类连接器适配单元，或者，是与异构的ROADM站点中不固定方向的本地上下路模块使用的光纤连接器适配连接的第二类连接器适配单元。
  25. 一种光纤连接设备，用于对ROADM站点中的M个光路模块进行光纤互联，所述设备包括：光交叉连接单元和M个连接器适配单元，M是≥2的自然数；
    其中，一个连接器适配单元用于与一个光路模块使用的光纤连接器适配连接；所述光交叉连接单元与所述M个连接器适配单元光连接，用于实现所述M个连接器适配单元之间的光纤互联。
PCT/CN2021/080938 2020-03-23 2021-03-16 光交叉连接单元、连接器适配单元以及光纤连接设备 WO2021190347A1 (zh)

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