WO2021219085A1 - Système d'interconnexion optique - Google Patents

Système d'interconnexion optique Download PDF

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Publication number
WO2021219085A1
WO2021219085A1 PCT/CN2021/091033 CN2021091033W WO2021219085A1 WO 2021219085 A1 WO2021219085 A1 WO 2021219085A1 CN 2021091033 W CN2021091033 W CN 2021091033W WO 2021219085 A1 WO2021219085 A1 WO 2021219085A1
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Prior art keywords
connection
port
single board
optical
optical interconnection
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Ceased
Application number
PCT/CN2021/091033
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English (en)
Chinese (zh)
Inventor
尚迎春
叶兵
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections

Definitions

  • the present disclosure relates to communications, and in particular to an optical interconnection system.
  • the embodiments of the present disclosure provide an optical interconnection system, which simplifies the manufacturing difficulty of the optical backplane and reduces the cost.
  • the embodiment of the present disclosure provides an optical interconnection system, including: an optical interconnection device and at least one single board; the optical interconnection device includes: at least one connection box; each connection box includes at least one connection module ; Each of the connection modules is connected to a connector on the corresponding connection box;
  • Each type of the single board is optically connected with at least one connector in at least one of the connection boxes.
  • each connection module connected to the connector on the corresponding connection box includes:
  • connection modules is connected to a connector on the corresponding connection box through an optical fiber
  • each connection module is used as a connector on the corresponding connection box.
  • Figure 1 is a structural block diagram of an optical interconnection system provided by the implementation of the present disclosure
  • FIG 2 is an internal schematic diagram of an optical interconnection device provided by an embodiment of the present disclosure
  • Fig. 3 is an internal connection diagram of a connection module provided by an embodiment of the present disclosure
  • FIG. 4 is an application example diagram of an optical interconnection system provided by an embodiment of the present disclosure.
  • FIG. 5 is an example diagram of an optical interconnection system provided by an embodiment of the present disclosure applied in a switching device
  • FIG. 6 is an example diagram of an optical interconnection system provided by an embodiment of the present disclosure applied in ROADM.
  • Fig. 1 is a structural block diagram of an optical interconnection system provided by the implementation of the present disclosure.
  • the optical interconnection system in this embodiment includes: an optical interconnection device 10 and at least one single board 20; the optical interconnection device 10 includes: at least one connection box 101; each connection box 101 contains At least one connection module 1011; each connection module 1011 is connected to at least one connector 1012 on the corresponding connection box 101; each type of single board 20 is optically connected to at least one connector 1012 in the at least one connection box 101.
  • the optical interconnection system includes: an optical interconnection device 10 and a single board 20, and the optical interconnection device 10 includes: a connection box 101, each connection box 101 includes two connection modules 1011
  • the structure of the optical interconnection system will be explained.
  • the optical interconnection system includes at least one connection box, each connection box includes at least one connection module, and each connection box includes two types of ports. Exemplarily, each connection box is divided into two types: A port and B port.
  • the optical interconnection system also includes at least one single board.
  • each single board is optically connected to at least one connector in each connection box (it may be an optical fiber connection or a direct connection) to achieve the effect of optical interconnection.
  • the optical backplane is disassembled into at least one connection box, and one connection box is disassembled into at least one connection module, so that the optical interaction between each type of single board and at least one connector in each connection box is realized. Through the combination of multiple simple connection modules, a complex optical backplane connection is realized, thereby greatly reducing the manufacturing difficulty and cost of the optical backplane.
  • each connection module is connected to the connector on the corresponding connection box, including: each connection module is connected to the connector on the corresponding connection box through an optical fiber; or, the connector of each connection module serves as the corresponding connection The connector on the box.
  • the optical connection between each type of single board and at least one connector in at least one connection box includes: each type of single board passes through an optical fiber or an optical fiber ribbon, and under the condition that a preset interweaving connection relationship is satisfied, with At least one connector in at least one connection box is optically connected.
  • the preset interleaving connection relationship means that at least one connection is maintained between the two ports of the single board.
  • the preset interweaving connection relationship when the optical interconnection system includes two types of single boards, the preset interweaving connection relationship includes: each first port on each first single board and at least one first port on at least one connection box One port is optically connected; each second port on each second single board is optically connected to at least one second port on at least one connection box.
  • the interface on the first single board is the A port, and the interface on the second single board is the B port, which can be connected to the A port and the B port on the connection box through an optical fiber or an optical fiber ribbon.
  • the first single board is a line card (LineCard, LC) single board; the second single board is a switch card (SwitchCard, SC) single board.
  • the first port is an LC port; the second port is an SC port.
  • the preset interweaving connection relationship means that at least one connection is maintained between the whole formed by all the ports of each LC single board and the whole formed by all the ports of each SC single board.
  • the single board when the optical interconnection system includes two kinds of single boards, the single board may be an LC single board or an SC single board, that is, when the first single board is an LC single board, the second single board is an SC single board.
  • Single board correspondingly, when the first single board is an SC single board, the second single board is an LC single board.
  • the connection relationship between the single board and the ports on the connection box will be described.
  • the first single board is an LC single board and the second single board is an SC single board
  • the first port on the connection box is an LC port
  • the second port is an SC port. That is, the LC port on the LC single board is connected with the LC port on the connection box, and the SC port on the SC single board is connected with the SC port on the connection box.
  • the preset interweaving connection relationship includes: each third port on each single board and at least one third port on at least one connection box Perform optical connection; each fourth port on each single board is optically connected with at least one fourth port on at least one connection box.
  • the third port is a wavelength division multiplexer (DeM) port; the fourth port is a wavelength division multiplexing ⁇ (Mux) port.
  • the optical interconnection system includes a single board, the first single board and the second single board are combined on the same single board. Each combined single board includes a third port and a fourth port.
  • each connection box includes several third ports and several fourth ports.
  • the third port as the DeM port
  • the fourth port as the Mux port
  • the connection relationship between the single board and the ports on the connection box will be described.
  • all the DeM ports on each single board are connected with the DeM ports on the connection box
  • all the Mux ports on each single board are connected with the Mux ports on the connection box.
  • the preset interweaving connection relationship means that at least one connection is maintained between the whole formed by all Mux ports on each board and the whole formed by all DeM ports on each board.
  • connection module includes one of the following: an optical fiber soft board; an optical waveguide board; a printed circuit board (Printed Circuit Board, PCB); and a cable board.
  • Fig. 2 is an internal schematic diagram of an optical interconnection device provided by an embodiment of the present disclosure.
  • the optical interconnection device contains n connection boxes, n ⁇ 1; each connection box contains m connection modules, m ⁇ 1; each connection module is connected to the connector on the corresponding connection box .
  • each connection module can be connected to the connector on the corresponding connection box through an optical fiber, or can be directly used as the connector of the connection box through the connector of the connection module itself.
  • the connection box 1 includes a connection module 1, a connection module 2 ... connection module m, and each connection module is connected to a connector on the connection box 1.
  • the connector on the connection box refers to the port on the connection box; the connector on the connection module refers to the port on the connection module.
  • Fig. 3 is an internal connection diagram of a connection module provided by an embodiment of the present disclosure.
  • each connection module can include two types of connectors.
  • the connection module is divided into connectors A and B.
  • the connector A has a total of 1 to a
  • the connector B has a total of 1 to b, with a ⁇ 1 and b ⁇ 1.
  • the connector A and the connector B may also be combined on one connector. That is to say, the distribution of the connector A and the connector B in the connection module can be set arbitrarily, which is not specifically limited.
  • a connection box includes at least one connection module, and the connection relationship between each connection module and all the connectors on each connection box can be connected by optical fiber or the connection port of the connection module (that is, the port in the above embodiment). ) Directly as a connector on the connection box.
  • Fig. 4 is an application example diagram of an optical interconnection system provided by an embodiment of the present disclosure.
  • connection box 1 connection box 2...connection box n
  • k single boards single board 1, single board 2...single board k
  • the single board can be divided into two types: single board C and single board D, so that all connectors on these two types of single boards are respectively connected to connector A and connector B on each connection box superior.
  • the combined single board is simultaneously connected to connector A and connection of each connection box. ⁇ B ⁇ B on.
  • the switching device includes 4 connection boxes, and each connection box includes 4 connection modules as an example, to describe the connection process of the single board and all the connectors in the connection box.
  • FIG. 5 is an example diagram of an optical interconnection system provided by an embodiment of the present disclosure applied in a switching device.
  • the switching device contains 4 connection boxes (connection box 1, connection box 2, connection box 3, and connection box 4), and each connection box has 4 connection modules.
  • Each connection module includes 16 LC ports and 16 SC ports, each LC port and each SC port is a 16-core optical connector, that is, each connection box has a total of 1 to 64 LC ports and 1 to 64 SC ports, and each LC port and SC port are 16-core optical connectors.
  • 1-16LC and 1-16SC are on the same connection module (that is, on the first connection module on the connection box 1, 2, 3, or 4), and there is a connection between each LC port and each SC port 1 optical path; 17 ⁇ 32LC and 17 ⁇ 32SC are on the same connection module (that is, on the second connection module on the connection box 1, 2, 3 or 4), there is between each LC port and each SC port 1 light path; and so on.
  • single board C is an LC board
  • single board D is an SC board.
  • each LC board has a framer (Framer), which outputs 32 transceiver pairs (that is, 32 receive and 32 transmit, a total of 64 signals) .
  • Each LC board outputs 4 16-core ports, as shown in Figure 5, 4 on the LC board are boxed with diagonal lines.
  • each SC board has a switch chip (SwitchFabric, SF), which outputs 128 transceiver pairs.
  • SwitchFabric switch chip
  • Each SC board outputs 16 16-core ports, as shown in Figure 5 on the 16 gray boxes on the SC board.
  • the LC port of each LC board can be connected to the LC port on at least one connection box, and the SC port on each SC board is connected to the port of the SC board on at least one connection box. That is to say, 4 optical paths are connected between the ports of each LC single board and all the ports of all SC single boards.
  • FIG. 6 is an example diagram of an optical interconnection system provided by an embodiment of the present disclosure applied in ROADM. As shown in Figure 6, suppose that there are 3 connection boxes (connection box 1, connection box 2, connection box 3) in the ROADM, and there are 3 connection modules on each connection box. Each connection module includes 24 Mux ports (that is, slashed boxes) and 24 DeM ports (that is, gray boxes).
  • Each Mux port and each DeM port is a 24-core optical connector, that is, each There are a total of 1 to 72 Mux ports and 1 to 72 DeM ports on the connection box, and each port is a 24-core optical connector.
  • 1 ⁇ 24Mux and 1 ⁇ 24DeM are on the same connection module (that is, on the first connection module on the connection box 1, 2 or 3), and there is 1 optical path between each Mux port and each DeM port;
  • 25 ⁇ 48Mux and 25 ⁇ 48DeM are on the same connection module (that is, on the second connection module on connection box 1, 2 or 3), there is 1 optical path between each Mux port and each DeM port; and so on .
  • each connector is a 24-core optical connector.
  • the DeM core of each board can be connected to the DeM port on each connection box, and the Mux core of each board can be connected to the Mux port on each connection box, that is, each There is an optical connection between the board and each connection box.
  • the way of connecting the upper and lower rows of the module to distinguish the two kinds of ports does not mean that the two ports are arranged up and down in reality. They can be on the same row on the same side of the connecting module, or Distributed on both sides of the connection module, or other forms of distribution.
  • connection module may be an optical fiber soft board, an optical waveguide board, or the like.
  • the optical connection may also be an electrical connection
  • the optical fiber is changed to a cable
  • the connection module may be a PCB board or a cable board.
  • the interconnection device in the above embodiment overcomes the problems of the existing optical backplane, such as difficulty in realization and high cost, greatly simplifies the manufacturing difficulty of the optical backplane, and reduces the cost.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

La présente invention concerne un système d'interconnexion optique. Le système d'interconnexion optique comprend un dispositif d'interconnexion optique et au moins une monocarte ; le dispositif d'interconnexion optique comprend au moins une boîte de connexion ; chaque boîte de connexion comprend au moins un module de connexion ; chaque module de connexion est connecté à un connecteur sur la boîte de connexion correspondante ; et chaque type de la monocarte est connecté optiquement à au moins un connecteur dans la ou les boîtes de connexion. Dans le mode de réalisation, un fond de panier optique est décomposé en au moins une boîte de connexion, et chaque boîte de connexion est décomposée en au moins un module de connexion, réduisant ainsi considérablement la difficulté de production et les coûts du fond de panier optique.
PCT/CN2021/091033 2020-04-29 2021-04-29 Système d'interconnexion optique Ceased WO2021219085A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010357437.6 2020-04-29
CN202010357437.6A CN113572531B (zh) 2020-04-29 2020-04-29 一种光互连系统

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CN202854382U (zh) * 2012-10-15 2013-04-03 上海光卓通信设备有限公司 用于数据中心光纤高密度布线系统的mpo转接盒
CN104508529A (zh) * 2012-06-01 2015-04-08 瑞典爱立信有限公司 细粒度光学混洗互连拓扑迁移
US20150212281A1 (en) * 2014-01-30 2015-07-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Methods, apparatuses and systems for blind mating multi-optical fiber connector modules
US20170363826A1 (en) * 2016-06-20 2017-12-21 Mellanox Technologies, Ltd. Field replaceable modular optical interconnect unit with optical module for datacenter switch system
CN108351482A (zh) * 2015-11-10 2018-07-31 康普技术有限责任公司 刀片机箱系统和可移除的盒

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Publication number Priority date Publication date Assignee Title
CN105376659B (zh) * 2015-09-30 2019-05-28 华为技术有限公司 一种光背板组件及一种通信设备
CN106954102B (zh) * 2016-01-06 2021-05-07 中兴通讯股份有限公司 一种光背板子架装置
CN108267817B (zh) * 2016-12-30 2019-06-25 中兴通讯股份有限公司 一种光交换装置、光连接装置及光连接器
EP3676911A1 (fr) * 2017-10-04 2020-07-08 Huawei Technologies Co., Ltd. Système d'antenne multibande

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104508529A (zh) * 2012-06-01 2015-04-08 瑞典爱立信有限公司 细粒度光学混洗互连拓扑迁移
CN202854382U (zh) * 2012-10-15 2013-04-03 上海光卓通信设备有限公司 用于数据中心光纤高密度布线系统的mpo转接盒
US20150212281A1 (en) * 2014-01-30 2015-07-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Methods, apparatuses and systems for blind mating multi-optical fiber connector modules
CN108351482A (zh) * 2015-11-10 2018-07-31 康普技术有限责任公司 刀片机箱系统和可移除的盒
US20170363826A1 (en) * 2016-06-20 2017-12-21 Mellanox Technologies, Ltd. Field replaceable modular optical interconnect unit with optical module for datacenter switch system

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CN113572531B (zh) 2025-02-21
CN113572531A (zh) 2021-10-29

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