WO2023067772A1 - 光接続モジュール - Google Patents
光接続モジュール Download PDFInfo
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- WO2023067772A1 WO2023067772A1 PCT/JP2021/038968 JP2021038968W WO2023067772A1 WO 2023067772 A1 WO2023067772 A1 WO 2023067772A1 JP 2021038968 W JP2021038968 W JP 2021038968W WO 2023067772 A1 WO2023067772 A1 WO 2023067772A1
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- WIPO (PCT)
- Prior art keywords
- optical
- fiber
- connector
- core
- optical fibers
- Prior art date
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- 230000003287 optical effect Effects 0.000 title claims abstract description 110
- 239000013307 optical fiber Substances 0.000 claims abstract description 58
- 239000000835 fiber Substances 0.000 claims description 54
- 230000035515 penetration Effects 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007526 fusion splicing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
-
- 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
- G02B6/40—Mechanical coupling means having fibre bundle mating means
Definitions
- the present disclosure relates to an optical connection module.
- Non-Patent Document 1 Various methods have been proposed for all-optical switches that switch the path of light as it is, as shown in Non-Patent Document 1, for example.
- the optical fiber type mechanical optical switch which controls the butting of optical fibers or optical connectors by a robot arm or a motor, is inferior to other methods in that the switching speed is slow, but it has low loss, low wavelength dependence, It has many advantages over other methods, such as multi-port capability and a self-holding function that maintains the switching state when the power is lost.
- a representative structure for this is, for example, a method of parallelly moving a stage using an optical fiber V-groove, or a method of parallelly moving or changing the angle of a mirror or prism to selectively couple an input optical fiber to a plurality of output optical fibers.
- Non-Patent Document 1 has the problem that it is difficult to further reduce the power consumption, reduce the size, and make it more economical.
- a motor is generally used as the drive source. and requires power consumption to obtain a commensurate output to maintain the required torque.
- Optical axis alignment using a single-mode optical fiber requires an accuracy of about 1 ⁇ m or less. , must be converted into linear motion in sub- ⁇ m steps.
- the optical fiber pitch of an optical fiber array on the output side that is usually used is about 125 ⁇ m in the clad outer diameter of the optical fiber or about 250 ⁇ m in the coated outer diameter of the optical fiber.
- the robot arm system using the optical connector has a problem that the robot arm itself for controlling insertion/removal of the optical connector or ferrule requires a large electric power of several tens of W or more. In an environment where there is only optical fiber, such as an outdoor aerial optical connection point, it has been difficult to secure sufficient electric power to drive these optical switches.
- FIG. 1 is a schematic diagram of a 4 ⁇ 8-fiber optical switch realized by combining eight 1 ⁇ 4-fiber optical switches and four 1 ⁇ 8-fiber optical switches.
- a 4.times.8-fiber optical switch it is necessary to connect all 1.times.8-fiber optical switches to each 1.times.4-fiber optical switch. This is the optical shuffle connection.
- An optical switch with N.times.M fibers requires N.times.M optical connections at an optical shuffle connection portion, and an optical switch with 4.times.8 fibers shown in FIG. 1 requires 32 optical connections.
- FIG. 2 is a diagram for realizing a conventional optical shuffle connection for a 4.times.8 fiber optical switch. Thirty-two fusion sleeves are required in order to perform fusion splicing at 32 locations for optical shuffle connection.
- an optical switch with N ⁇ M cores requires optical connections at N ⁇ M locations, and requires N ⁇ M fusion sleeves for the entire optical switch.
- the large number of fusion sleeves results in a large optical switch.
- an object of the present disclosure is to enable space saving of an optical fiber connection part such as an optical switch.
- An optical connection module includes An optical connection module for connecting first and second multi-core connectors,
- the first and second multicore connectors have optical fibers arranged two-dimensionally, the first multi-core connector has optical fibers connected to the same optical switch arranged in a vertical direction and optical fibers connected to different optical switches arranged in a horizontal direction;
- optical fibers connected to the same optical switch are arranged horizontally, and optical fibers connected to different optical switches are arranged vertically.
- an optical fiber connection part such as an optical switch.
- FIG. 2 is a schematic diagram of a 4 ⁇ 8-fiber optical switch realized by combining eight 1 ⁇ 4-fiber optical switches and four 1 ⁇ 8-fiber optical switches.
- FIG. 2 is a diagram explaining a problem in the optical switch of FIG. 1; 1 is a configuration example of an optical connection module according to an embodiment of the present disclosure; 3 is an enlarged view of multi-core optical connectors CA and CB; FIG. 1 is a configuration example of an optical connection module according to an embodiment of the present disclosure; It is a configuration example of a two-dimensional array MT connector. It is a configuration example of a two-dimensional array MT connector. It is a configuration example of a two-dimensional array MT connector. It is a configuration example of a two-dimensional array MT connector of the present disclosure.
- the optical connection module of the present disclosure is An optical connection module for connecting first and second multi-core connectors capable of two-dimensionally arranging optical fibers, the first multi-core connector has optical fibers connected to the same optical switch arranged in a vertical direction and optical fibers connected to different optical switches arranged in a horizontal direction; In the second multi-core connector, optical fibers connected to the same optical switch are arranged horizontally, and optical fibers connected to different optical switches are arranged vertically.
- the present disclosure enables batch optical shuffle connection using a multi-fiber connector by providing these configurations.
- the first and second multi-core connectors are N ⁇ M-core (N and M are natural numbers equal to or greater than 2) connectors will be described below.
- FIG. 3 shows a configuration example of an optical connection module for connecting a 4 ⁇ 8-core multi-core connector.
- a multi-fiber optical connector CA is produced by vertically arranging 4-fibers FA coming out of each of the 1 ⁇ 4-fiber optical switches SA to SH to form a multi-fiber optical connector.
- a multi-fiber optical connector CB is manufactured by arranging the 8-fibers FB coming out of each of the 1 ⁇ 8-fiber optical switches SI to SL in order to form a multi-fiber optical connector.
- FIG. 4 is an enlarged view of multi-fiber optical connectors CA and CB.
- the multi-fiber optical connector CA has four optical connectors CSA to CSH arranged in parallel in the horizontal direction. Thereby, the optical fibers FA of the multi-fiber optical connector CA are arranged in 4 rows and 8 columns.
- 8-fiber optical connectors CSI to CSL are arranged in parallel in the vertical direction.
- the optical fibers FB of the multi-fiber optical connector CB are arranged in 4 rows and 8 columns.
- a fiber tape in which four optical fibers are one-dimensionally arranged may be used as the optical connectors CSA to CSH, and a fiber tape in which eight optical fibers are one-dimensionally arranged may be used as the optical connectors CSI to CSL.
- an 8-core fiber tape may be configured by arranging in series two fiber tapes in which 4-core optical fibers are arranged one-dimensionally.
- a fiber tape in which optical fibers are two-dimensionally arranged may also be used.
- the multi-fiber optical connectors CA and CB may be two-dimensionally arranged MT optical connectors as shown in FIG. 5, or may be push-pull type MPO connectors with a housing attached.
- the multi-fiber optical connector CB (horizontally arranged two-dimensional MT connector) in FIG. It is made by inserting it into an MT ferrule (not shown) so as to be parallel.
- a multi-fiber optical connector CA (vertically arranged two-dimensional array MT connector) is manufactured by inserting an M-fiber optical tape TA into an MT ferrule (not shown) so as to be perpendicular to the longitudinal direction of N MT ferrules. do. Note that the longitudinal direction of the MT ferrule may be parallel to the straight line connecting the guide pin holes 12 .
- the multi-fiber optical connector CA of the present embodiment has a structure in which the opposite side of the guide pin holes 12 from the connector end surface SA (the EA side shown in FIG. 5) is closed with the penetration prevention portion 15.
- the penetration prevention part 15 is arranged in the guide pin hole 12 so as not to protrude from the MT connector.
- the thickness of the penetration prevention portion 15 is required to be within about 3 mm so that the guide pin 13 does not protrude from the guide pin hole 12 of the MT connector on the opposite side when the MT connector is connected.
- the penetration prevention portion 15 may be provided not only in the multi-fiber optical connector CA, but also in the guide pin hole 12 of the multi-fiber optical connector CB.
- the connector CB is arranged horizontally two-dimensionally and the connector CB is arranged vertically two-dimensionally.
- the present disclosure provides a multi-core connector in which a plurality of 1 ⁇ N optical switches are combined, a horizontal two-dimensional array of 1 ⁇ N optical switches, and a vertical connector with 1 ⁇ N optical switches.
- a two-dimensionally arranged multi-fiber connector is connected to the connector.
- the multi-fiber connector can be realized by any method, but for example, a group of horizontally aligned optical fiber tapes (optical fibers arranged in an array) and a group of vertically aligned optical fiber tapes (optical fibers arranged in an array) By optically connecting , full-mesh optical connection can be realized compactly.
- a vertically arranged two-dimensional array MT ferrule may be realized by inserting the tape core wires so as to be perpendicular to the longitudinal direction of the MT ferrule.
- the MT connector using the MT ferrule may have a structure that prevents the guide pin from penetrating toward the ribbon core.
- This disclosure can be applied to the information and communications industry.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
第1及び第2の多心コネクタを接続する光接続モジュールであって、
前記第1及び第2の多心コネクタは、光ファイバが2次元配列され、
前記第1の多心コネクタは、同じ光スイッチに接続されている光ファイバが垂直方向に配列され、異なる光スイッチに接続されている光ファイバが水平方向に配列され、
前記第2の多心コネクタは、同じ光スイッチに接続されている光ファイバが水平方向に配列され、異なる光スイッチに接続されている光ファイバが垂直方向に配列されている。
光ファイバを2次元配列可能な第1及び第2の多心コネクタを接続する光接続モジュールであって、
前記第1の多心コネクタは、同じ光スイッチに接続されている光ファイバが垂直方向に配列され、異なる光スイッチに接続されている光ファイバが水平方向に配列され、
前記第2の多心コネクタは、同じ光スイッチに接続されている光ファイバが水平方向に配列され、異なる光スイッチに接続されている光ファイバが垂直方向に配列されている。
本開示は、これらの構成を備えることで、多心コネクタを用いた一括光シャッフル接続を可能にする。以下、第1及び第2の多心コネクタがN×M心(N及びMは2以上の自然数である。)コネクタである例について説明する。
図3は4×8心の多心コネクタを接続する光接続モジュールの構成例である。各1×4心の光スイッチSA~SHから出る4心の光ファイバFAを順に縦に並べて多心光コネクタ化することで多心光コネクタCAを作製する。また各1×8心の光スイッチSI~SLから出る8心の光ファイバFBを順に横に並べて多心光コネクタ化することで多心光コネクタCBを作製する。
二次元配列MTコネクタ11のガイドピン穴12が貫通してる場合、図6、図7のように、ガイドピン穴12へガイドピン13を通すとガイドピン13がコネクタ端面14とは逆側に貫通し得る。この場合、垂直配列の二次元配列MTコネクタ11ではコネクタへ挿入するファイバテープTAがガイドピン穴12側へ向かって曲がることがあり、ガイドピン13によってファイバテープTAへ傷等をつける可能性がある。
1×N心の光スイッチを複数組み合わせて任意の心数の光スイッチを作製するなど、光シャッフル接続する必要がある場合において、水平に二次元配列されたコネクタCBと垂直に二次元配列されたコネクタCAをコネクタ接続することで、接続部の省スペース化を実現することができる。
以上説明したように、本開示は、1×N心の光スイッチを複数組み合わせ、1×N心の光スイッチを水平に二次元配列した多心コネクタと、1×N心の光スイッチを垂直に二次元配列した多心コネクタと、をコネクタ接続する。これにより、本開示は、光シャッフル接続を実現する。
12:ガイドピン穴
13:ガイドピン
14:コネクタ端面
15:貫通防止部
16:コネクタ端面側
Claims (4)
- 第1及び第2の多心コネクタを接続する光接続モジュールであって、
前記第1及び第2の多心コネクタは、光ファイバが2次元配列され、
前記第1の多心コネクタは、同じ光スイッチに接続されている光ファイバが垂直方向に配列され、異なる光スイッチに接続されている光ファイバが水平方向に配列され、
前記第2の多心コネクタは、同じ光スイッチに接続されている光ファイバが水平方向に配列され、異なる光スイッチに接続されている光ファイバが垂直方向に配列されている、
光接続モジュール。 - 前記第1及び第2の多心コネクタは、N×M心コネクタであり、
前記第1の多心コネクタは、N本の光ファイバで接続可能なM個の光スイッチと接続され、
前記第2の多心コネクタは、M本の光ファイバで接続可能なN個の光スイッチと接続されている、
請求項1に記載の光接続モジュール。 - 前記第1の多心コネクタは、N本の光ファイバが1次元配列されたN心光ファイバテープをM枚並列に配列され、
前記N心光ファイバテープは、M個の1×N光スイッチに接続され、
前記第2の多心コネクタは、M本の光ファイバが1次元配列されたM心光ファイバテープをN枚並列に配列され、
前記M心光ファイバテープは、N個の1×M光スイッチに接続されている、
請求項2に記載の光接続モジュール。 - 前記第1の多心コネクタは、ガイドピンを挿入するするためのガイドピン穴に、前記ガイドピンが前記N心光ファイバテープと接触するのを防ぐ貫通防止部を備える、
請求項3に記載の光接続モジュール。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116560006A (zh) * | 2023-07-10 | 2023-08-08 | 广东电网有限责任公司佛山供电局 | 一种光纤远程自动切换装置、方法和设备 |
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JPH02184805A (ja) * | 1989-01-12 | 1990-07-19 | Sumitomo Electric Ind Ltd | 光ファイバ配線装置 |
WO1999031539A1 (fr) * | 1997-12-17 | 1999-06-24 | Sumitomo Electric Industries, Ltd. | Tige de guidage pour connecteurs de fibres optiques et fiche de connecteur pour fibres optiques |
JP2002243985A (ja) * | 2001-02-16 | 2002-08-28 | Fujikura Ltd | 光ファイバテープ心線二次元変換方法および二次元変換光ファイバテープ心線束 |
JP2007078740A (ja) * | 2005-09-09 | 2007-03-29 | Fujikura Ltd | 光コネクタレセプタクル、光コネクタレセプタクル付き基板 |
CN101950054A (zh) * | 2010-09-10 | 2011-01-19 | 中航光电科技股份有限公司 | 光纤连接器 |
US20140093211A1 (en) * | 2012-09-28 | 2014-04-03 | Avago Technologies Genenral IP (Singapore) Pte. Ltd. | Optical cross-connect assembly and method |
US20160337727A1 (en) * | 2015-05-12 | 2016-11-17 | Huawei Technologies Co., Ltd. | System and Method for Photonic Structure and Switch |
US20180275356A1 (en) * | 2017-03-22 | 2018-09-27 | Corning Optical Communications LLC | Optical shuffle cable, cable assembly, and methods of making the same |
CN112415684A (zh) * | 2020-11-16 | 2021-02-26 | 武汉光迅科技股份有限公司 | 一种无源光纤交叉配线装置 |
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2021
- 2021-10-21 WO PCT/JP2021/038968 patent/WO2023067772A1/ja active Application Filing
- 2021-10-21 JP JP2023554186A patent/JPWO2023067772A1/ja active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02184805A (ja) * | 1989-01-12 | 1990-07-19 | Sumitomo Electric Ind Ltd | 光ファイバ配線装置 |
WO1999031539A1 (fr) * | 1997-12-17 | 1999-06-24 | Sumitomo Electric Industries, Ltd. | Tige de guidage pour connecteurs de fibres optiques et fiche de connecteur pour fibres optiques |
JP2002243985A (ja) * | 2001-02-16 | 2002-08-28 | Fujikura Ltd | 光ファイバテープ心線二次元変換方法および二次元変換光ファイバテープ心線束 |
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CN101950054A (zh) * | 2010-09-10 | 2011-01-19 | 中航光电科技股份有限公司 | 光纤连接器 |
US20140093211A1 (en) * | 2012-09-28 | 2014-04-03 | Avago Technologies Genenral IP (Singapore) Pte. Ltd. | Optical cross-connect assembly and method |
US20160337727A1 (en) * | 2015-05-12 | 2016-11-17 | Huawei Technologies Co., Ltd. | System and Method for Photonic Structure and Switch |
US20180275356A1 (en) * | 2017-03-22 | 2018-09-27 | Corning Optical Communications LLC | Optical shuffle cable, cable assembly, and methods of making the same |
CN112415684A (zh) * | 2020-11-16 | 2021-02-26 | 武汉光迅科技股份有限公司 | 一种无源光纤交叉配线装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116560006A (zh) * | 2023-07-10 | 2023-08-08 | 广东电网有限责任公司佛山供电局 | 一种光纤远程自动切换装置、方法和设备 |
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