WO2023105549A1 - Circuit de multiplexage/démultiplexage optique et procédé de réglage de rapport de ramification - Google Patents

Circuit de multiplexage/démultiplexage optique et procédé de réglage de rapport de ramification Download PDF

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Publication number
WO2023105549A1
WO2023105549A1 PCT/JP2021/044624 JP2021044624W WO2023105549A1 WO 2023105549 A1 WO2023105549 A1 WO 2023105549A1 JP 2021044624 W JP2021044624 W JP 2021044624W WO 2023105549 A1 WO2023105549 A1 WO 2023105549A1
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WO
WIPO (PCT)
Prior art keywords
blocks
demultiplexing circuit
optical multiplexing
branching ratio
pressure
Prior art date
Application number
PCT/JP2021/044624
Other languages
English (en)
Japanese (ja)
Inventor
卓威 植松
一貴 納戸
裕之 飯田
栄伸 廣田
和典 片山
Original Assignee
日本電信電話株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電信電話株式会社 filed Critical 日本電信電話株式会社
Priority to PCT/JP2021/044624 priority Critical patent/WO2023105549A1/fr
Publication of WO2023105549A1 publication Critical patent/WO2023105549A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals

Definitions

  • One of the optical multiplexing/demultiplexing technologies that can demultiplex light from an existing optical fiber core wire or multiplex light to an existing optical fiber core wire without cutting the existing optical fiber core wire.
  • a method of manufacturing an optical fiber coupler (optical multiplexing/demultiplexing circuit) using a side polishing method has been studied (see, for example, Non-Patent Document 1).
  • the optical multiplexing/demultiplexing circuit according to the present invention is fixed by applying pressure in a direction to bring the blocks closer to each other, instead of adhesively fixing the blocks.
  • the blocks are not glued together, but rather pressed in a direction to bring them closer together, so the branching ratio can be adjusted by moving the blocks relative to each other. Further, after the optical multiplexing/branching becomes unnecessary, the amount of relative movement between the blocks may be increased. By separating one optical fiber core wire from the other optical fiber core wire, optical coupling is no longer generated, and the optical multiplexing/demultiplexing circuit is removed. Furthermore, if the pressure is stopped and the block is removed, the optical multiplexing/demultiplexing circuit can be completely removed.
  • a pressurizing unit 20 that pressurizes the two blocks (10a, 10b) with the surfaces 11 in contact with each other with a pressurizing force P in the direction (Z direction) in which they approach each other; an adjustment unit 30 that moves the two blocks (10a, 10b) in the direction of a plane (XY plane) including the surface 11 while the pressure unit 20 is applying pressure, and adjusts the branching ratio; Prepare.
  • FIG. 2 is a diagram for explaining a method of adjusting the branching ratio of the optical multiplexing/demultiplexing circuit 301.
  • the method is The two blocks (10a, 10b) with the surfaces 11 in contact with each other are continuously pressed with a pressing force P in the direction of approaching each other (Fig. 2(A)), and the two blocks (10a, 10b) are is moved in the direction of the plane (XY plane) containing the , and the branching ratio is adjusted (FIGS. 2(B) and 2(C)). 2, the illustration of the pressure unit 20 and the adjustment unit 30 is omitted.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

Le but de la présente invention est de fournir un circuit de multiplexage/démultiplexage optique qui est détachable et capable d'ajuster le rapport de ramification, et un procédé de réglage de rapport de ramification pour celui-ci.　Un circuit de multiplexage/démultiplexage optique 301 selon la présente invention comprend : deux blocs (10a, 10b) ayant chacun une rainure 12 dans une surface 11, une surface polie (51a, 51b) d'une fibre optique revêtue (50a, 50b) dont une surface latérale a été polie étant ajustée dans la rainure 12 de façon à devenir une partie de la surface 11 ; une partie de mise sous pression 20 qui met sous pression les deux blocs (10a, 10b), dont les surfaces 11 sont mises en contact l'une avec l'autre, avec une force de mise sous pression P dans une direction (direction Z) s'approchant l'une de l'autre ; et une partie de réglage 30 qui déplace les deux blocs (10a, 10b) dans la direction d'un plan (plan X-Y) comprenant la surface 11 dans un état dans lequel la partie de mise sous pression 20 met sous pression les blocs, et ajuste le rapport de ramification.
PCT/JP2021/044624 2021-12-06 2021-12-06 Circuit de multiplexage/démultiplexage optique et procédé de réglage de rapport de ramification WO2023105549A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/044624 WO2023105549A1 (fr) 2021-12-06 2021-12-06 Circuit de multiplexage/démultiplexage optique et procédé de réglage de rapport de ramification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/044624 WO2023105549A1 (fr) 2021-12-06 2021-12-06 Circuit de multiplexage/démultiplexage optique et procédé de réglage de rapport de ramification

Publications (1)

Publication Number Publication Date
WO2023105549A1 true WO2023105549A1 (fr) 2023-06-15

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PCT/JP2021/044624 WO2023105549A1 (fr) 2021-12-06 2021-12-06 Circuit de multiplexage/démultiplexage optique et procédé de réglage de rapport de ramification

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WO (1) WO2023105549A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125854A (en) * 1977-04-08 1978-11-02 Matsushita Electric Ind Co Ltd Optical transmission system and production therefor
US4307933A (en) * 1980-02-20 1981-12-29 General Dynamics, Pomona Division Optical fiber launch coupler
US4514057A (en) * 1981-12-23 1985-04-30 General Dynamics Pomona Division Fiber optic coupler array and fabrication method
JPH03505262A (ja) * 1988-05-09 1991-11-14 ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー フッ化物ガラス光結合素子、結合器および方法
JPH0815558A (ja) * 1994-06-28 1996-01-19 Sumitomo Electric Ind Ltd テープファイバカプラの製造装置
JPH08234045A (ja) * 1994-12-27 1996-09-13 Furukawa Electric Co Ltd:The 光ファイバカプラとその使用方法
JPH0926520A (ja) * 1995-07-13 1997-01-28 Sumitomo Electric Ind Ltd 光ファイバカプラの製造装置
US6968103B1 (en) * 2002-10-10 2005-11-22 General Dynamics Advanced Information Systems, Inc. Optical fiber coupler and method for making same
JP2005346080A (ja) * 2004-06-04 2005-12-15 Jiaotong Univ レーザ微加工処理による全光ファイバー型素子の製作方法
JP2016065931A (ja) * 2014-09-24 2016-04-28 株式会社石原産業 光カプラ及びその光カプラを利用した光の分岐方法
WO2021064916A1 (fr) * 2019-10-02 2021-04-08 日本電信電話株式会社 Procédé de fabrication de circuit de dérivation optique et dispositif de fabrication de circuit de dérivation optique

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53125854A (en) * 1977-04-08 1978-11-02 Matsushita Electric Ind Co Ltd Optical transmission system and production therefor
US4307933A (en) * 1980-02-20 1981-12-29 General Dynamics, Pomona Division Optical fiber launch coupler
US4514057A (en) * 1981-12-23 1985-04-30 General Dynamics Pomona Division Fiber optic coupler array and fabrication method
JPH03505262A (ja) * 1988-05-09 1991-11-14 ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー フッ化物ガラス光結合素子、結合器および方法
JPH0815558A (ja) * 1994-06-28 1996-01-19 Sumitomo Electric Ind Ltd テープファイバカプラの製造装置
JPH08234045A (ja) * 1994-12-27 1996-09-13 Furukawa Electric Co Ltd:The 光ファイバカプラとその使用方法
JPH0926520A (ja) * 1995-07-13 1997-01-28 Sumitomo Electric Ind Ltd 光ファイバカプラの製造装置
US6968103B1 (en) * 2002-10-10 2005-11-22 General Dynamics Advanced Information Systems, Inc. Optical fiber coupler and method for making same
JP2005346080A (ja) * 2004-06-04 2005-12-15 Jiaotong Univ レーザ微加工処理による全光ファイバー型素子の製作方法
JP2016065931A (ja) * 2014-09-24 2016-04-28 株式会社石原産業 光カプラ及びその光カプラを利用した光の分岐方法
WO2021064916A1 (fr) * 2019-10-02 2021-04-08 日本電信電話株式会社 Procédé de fabrication de circuit de dérivation optique et dispositif de fabrication de circuit de dérivation optique

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