WO2016002922A1 - Dispositif de conversion espace-oam et de combinaison/d'embranchement oam, système de transmission oam et système de réseau oam-adm - Google Patents

Dispositif de conversion espace-oam et de combinaison/d'embranchement oam, système de transmission oam et système de réseau oam-adm Download PDF

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Publication number
WO2016002922A1
WO2016002922A1 PCT/JP2015/069238 JP2015069238W WO2016002922A1 WO 2016002922 A1 WO2016002922 A1 WO 2016002922A1 JP 2015069238 W JP2015069238 W JP 2015069238W WO 2016002922 A1 WO2016002922 A1 WO 2016002922A1
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WO
WIPO (PCT)
Prior art keywords
oam
mode
space
conversion
branching device
Prior art date
Application number
PCT/JP2015/069238
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English (en)
Japanese (ja)
Inventor
貴一 ▲浜▼本
海松 姜
Original Assignee
国立大学法人九州大学
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.)
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Publication date
Application filed by 国立大学法人九州大学 filed Critical 国立大学法人九州大学
Priority to JP2016531466A priority Critical patent/JPWO2016002922A1/ja
Publication of WO2016002922A1 publication Critical patent/WO2016002922A1/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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • 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
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
    • G02B6/2813—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs based on multimode interference effect, i.e. self-imaging
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/14—Mode converters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/31—Digital deflection, i.e. optical switching
    • G02F1/313—Digital deflection, i.e. optical switching in an optical waveguide structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/05—Spatial multiplexing systems
    • H04J14/052—Spatial multiplexing systems using multicore fibre
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/06—Polarisation multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/07—Orbital angular momentum [OAM] multiplex systems
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12133—Functions
    • G02B2006/12152—Mode converter
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B2006/12133—Functions
    • G02B2006/12159—Interferometer
    • 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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02042—Multicore optical fibres

Definitions

  • the transmission channel cannot be increased significantly on the MCF.
  • MCF the cores are isolated from each other.
  • Each core of the MCF can be considered as being separated from each other, and therefore it is not necessary to consider the mode orthogonal state when transmitting signals along the fiber.
  • the phase of the a-OAM mode changes along the central axis as in the normal OAM mode, but no longer has a relationship of “2 ⁇ ” ⁇ l.
  • FIG. 1 (d) shows the moment angle ⁇ as a function of charge number. As shown in this figure, a non- "mode degeneration" condition is ensured.
  • n eff is the effective refractive index of the slab waveguide.
  • Equation (6) Equation (7), and Equation (8).
  • the basic moment angle ⁇ is ⁇ from Equation (10), and the phase difference of the OAM mode input to the adjacent single mode optical waveguide 12a of the arrayed waveguide section 12 is ⁇ / 7.
  • the arrayed waveguide portion 12 includes a phase matching region 12b that changes the refractive index of the core of each single mode optical waveguide 12a in order to make each single mode optical waveguide 12a have the same optical path length.
  • the phase matching region 12b may be configured such that the refractive index of the core of each single mode optical waveguide 12a is changed by controlling the current, voltage, or temperature, or the medium is transformed by irradiating ultraviolet rays to change the refractive index. It may be configured to change.
  • the alignment accuracy among the arrayed waveguide section 12, the fan-in / fan-out device 3 and the multi-core fiber 1 can be made high.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Optical Communication System (AREA)

Abstract

L'invention porte sur un dispositif de conversion espace-OAM et de combinaison/d'embranchement OAM apte à augmenter les canaux de transmission par une fibre multicœur. Un dispositif de conversion espace-OAM et de combinaison/d'embranchement OAM (10) est un dispositif de conversion espace-OAM et de combinaison/d'embranchement OAM (10) qui convertit de la lumière monomode d'entrée en un mode de sortie OAM, et qui convertit un mode OAM d'entrée en de la lumière monomode de sortie. Un angle de moment fondamental (θ), correspondant à l'angle d'un cycle en mode OAM, vérifie l'expression θ ≤ 2π × N/M (N < M), où N est le nombre de cœurs d'une fibre multicœur utilisée pour la transmission du mode OAM et M est le nombre de modes à transmettre par la fibre multicœur.
PCT/JP2015/069238 2014-07-04 2015-07-03 Dispositif de conversion espace-oam et de combinaison/d'embranchement oam, système de transmission oam et système de réseau oam-adm WO2016002922A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016531466A JPWO2016002922A1 (ja) 2014-07-04 2015-07-03 空間−ｏａｍ変換・ｏａｍ合分岐デバイス、ｏａｍ伝送システム及びｏａｍ−ａｄｍネットワークシステム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014138992 2014-07-04
JP2014-138992 2014-07-04

Publications (1)

Publication Number Publication Date
WO2016002922A1 true WO2016002922A1 (fr) 2016-01-07

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PCT/JP2015/069238 WO2016002922A1 (fr) 2014-07-04 2015-07-03 Dispositif de conversion espace-oam et de combinaison/d'embranchement oam, système de transmission oam et système de réseau oam-adm

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JP (1) JPWO2016002922A1 (fr)
WO (1) WO2016002922A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109581590A (zh) * 2018-09-03 2019-04-05 暨南大学 一种LP01模式-LPmn模式全光纤型模式转换器
CN110068892A (zh) * 2019-05-28 2019-07-30 南京邮电大学 一种基于硅基波导光子轨道角动量的产生及复用集成器
CN110673264A (zh) * 2019-09-03 2020-01-10 南开大学 一种基于微结构光纤的轨道角动量模式复用解复用耦合器
CN111948753A (zh) * 2020-07-20 2020-11-17 南京晓庄学院 一种基于双槽式硅纳米线波导高纯oam模产生及模分复用器
CN114354128A (zh) * 2021-10-12 2022-04-15 桂林电子科技大学 一种新型涡旋光场探测装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013205761A (ja) * 2012-03-29 2013-10-07 Mitsubishi Cable Ind Ltd ファンアウトモジュール
JP2014504745A (ja) * 2010-12-29 2014-02-24 アルカテル−ルーセント コア選択光スイッチ
JP2014112164A (ja) * 2012-12-05 2014-06-19 Hitachi Metals Ltd 光ファイバ接続構造

Patent Citations (3)

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JP2014504745A (ja) * 2010-12-29 2014-02-24 アルカテル−ルーセント コア選択光スイッチ
JP2013205761A (ja) * 2012-03-29 2013-10-07 Mitsubishi Cable Ind Ltd ファンアウトモジュール
JP2014112164A (ja) * 2012-12-05 2014-06-19 Hitachi Metals Ltd 光ファイバ接続構造

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Title
A. M. NUGROWATI ET AL.: "Position measurement of non-integer OAM beams with structurally invariant propagation", OPTICS EXPRESS, vol. 20, no. 25, 26 November 2012 (2012-11-26), pages 27429 - 27441, XP055249638 *
G. C. G. BERKHOUT ET AL.: "Measuring orbital angular momentum superpositions of light by mode transformation", OPTICS LETTERS, vol. 36, no. 10, 11 May 2011 (2011-05-11), pages 1863 - 1865, XP001563193 *
R. P. SCOTT ET AL.: "Free-space coherent optical communication demonstration using a 3D photonic integrated circuit device for orbital angular momentum multiplexing/demultiplexing", PROCEEDING OF ECOC, 24 September 2013 (2013-09-24), XP055249633 *
YOSHINARI AWAJI ET AL.: "Propagation of Laguerre-Gaussian mode light through multi-core fiber at telecom wavelength", PROCEEDINGS OF CLEO 2011, 2011, XP031891641 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109581590A (zh) * 2018-09-03 2019-04-05 暨南大学 一种LP01模式-LPmn模式全光纤型模式转换器
CN110068892A (zh) * 2019-05-28 2019-07-30 南京邮电大学 一种基于硅基波导光子轨道角动量的产生及复用集成器
CN110068892B (zh) * 2019-05-28 2020-05-26 南京邮电大学 一种基于硅基波导光子轨道角动量的产生及复用集成器
CN110673264A (zh) * 2019-09-03 2020-01-10 南开大学 一种基于微结构光纤的轨道角动量模式复用解复用耦合器
CN110673264B (zh) * 2019-09-03 2020-10-02 南开大学 一种基于微结构光纤的轨道角动量模式复用解复用耦合器
CN111948753A (zh) * 2020-07-20 2020-11-17 南京晓庄学院 一种基于双槽式硅纳米线波导高纯oam模产生及模分复用器
CN114354128A (zh) * 2021-10-12 2022-04-15 桂林电子科技大学 一种新型涡旋光场探测装置

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