KR970028641A - 광신호 스위치 소자 - Google Patents

광신호 스위치 소자 Download PDF

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Publication number
KR970028641A
KR970028641A KR1019950041514A KR19950041514A KR970028641A KR 970028641 A KR970028641 A KR 970028641A KR 1019950041514 A KR1019950041514 A KR 1019950041514A KR 19950041514 A KR19950041514 A KR 19950041514A KR 970028641 A KR970028641 A KR 970028641A
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KR
South Korea
Prior art keywords
optical
waveguides
coupling
pair
light passing
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Application number
KR1019950041514A
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English (en)
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KR100204026B1 (ko
Inventor
한선규
김혜영
이명현
이형종
원용협
Original Assignee
양승택
한국전자통신연구원
이준
한국전기통신공사
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 양승택, 한국전자통신연구원, 이준, 한국전기통신공사 filed Critical 양승택
Priority to KR1019950041514A priority Critical patent/KR100204026B1/ko
Priority to NL1004504A priority patent/NL1004504C2/nl
Priority to US08/747,766 priority patent/US5828796A/en
Publication of KR970028641A publication Critical patent/KR970028641A/ko
Application granted granted Critical
Publication of KR100204026B1 publication Critical patent/KR100204026B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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
    • G02F1/3136—Digital deflection, i.e. optical switching in an optical waveguide structure of interferometric switch 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
    • G02B6/10—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
    • G02B6/122—Basic optical elements, e.g. light-guiding paths
    • G02B6/125—Bends, branchings or intersections
    • 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
    • G02B2006/12145—Switch
    • 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
    • G02B2006/12147—Coupler
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

본 발명은 한 쌍의 광 도파로(41, 42)를 구비하는 2×2광 스위치에 있어서, 상기 한 쌍의 광 도파로(41, 42)를 통하는 광에 광 위상 변화를 별도로 주는 광 위상 변조수단(48); 및 상기 광 위상 변조수단(48)의 입출력단 각각에 위치하여 상기 광 도파로 각각을 따라 통과하는 광간에 커플링을 유도하는 광 커플링수단(47, 49)을 구비하여, 상기 광 커플링수단에 의한 광 커플링 구간의 광 도파로는 서로 이격간격 없이 붙은 형태인 것을 특징으로 하는 2×2광 스위치에 관한 것으로, 진행하는 광이 두 도파로가 간격이 없어 붙은 광 커플링부를 지나기 때문에 두 도파로 커필링 구간 사이에서 발생되는 오차를 서로 공급하여 공정 상에 발생하는 오차를 최소한으로 감소시킬 수 있으며, 또한, 두 도파로의 커플링을 DC형이나 BB형처럼 간접적으로 하지 않기 때문에 광 소자의 전체 길이를 줄일 수 있으며, 이에 따라 광 소자의 출력 감소를 최소화할 수 있도록 한 것이다.

Description

광신호 스위치 소자
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3a도 및 제3b도는 본 발명의 일실시예에 따른 2×2광 스위치의 광 도파로 및 전극의 구조도.

Claims (1)

  1. 한 쌍의 광 도파로(41, 42)를 구비하는 2×2광 스위치에 있어서, 상기 한 쌍의 광 도파로(41, 42)를 통하는 광에 광 위상 변화를 별도로 주는 광 위상 변조수단(48); 및 상기 광 위상 변조수단(48)의 입출력단 각각에 위치하여 상기 광 도파로 각각을 따라 통과하는 광간에 커플링을 유도하는 광 커플링수단(47, 48)을 구비하며, 상기 광 커플링수단에 의한 광 커플링 구간의 광 도파로는 서로 이격간격 없이 붙은 형태인 것을 특징으로 하는 2×2광 스위치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950041514A 1995-11-15 1995-11-15 광신호 스위칭 소자 Expired - Fee Related KR100204026B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019950041514A KR100204026B1 (ko) 1995-11-15 1995-11-15 광신호 스위칭 소자
NL1004504A NL1004504C2 (nl) 1995-11-15 1996-11-12 Optisch schakelelement.
US08/747,766 US5828796A (en) 1995-11-15 1996-11-13 Optical switch for reducing processing errors in a coupling region

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950041514A KR100204026B1 (ko) 1995-11-15 1995-11-15 광신호 스위칭 소자

Publications (2)

Publication Number Publication Date
KR970028641A true KR970028641A (ko) 1997-06-24
KR100204026B1 KR100204026B1 (ko) 1999-06-15

Family

ID=19434237

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950041514A Expired - Fee Related KR100204026B1 (ko) 1995-11-15 1995-11-15 광신호 스위칭 소자

Country Status (3)

Country Link
US (1) US5828796A (ko)
KR (1) KR100204026B1 (ko)
NL (1) NL1004504C2 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001235961A1 (en) * 2000-03-02 2001-09-12 Orchid Lightwave Communications, Inc. Integrated optical devices and methods of making such devices
US6233378B1 (en) * 2000-05-15 2001-05-15 Nu-Wave Photonics Inc. Optical switch utilizing two unidirectional waveguide couplers
US6374017B1 (en) * 2000-10-02 2002-04-16 Charles Christopher Romaniuk Phase dependent splitter/combiner 4-port coupler device
KR100403055B1 (ko) * 2002-01-16 2003-10-23 한국전자통신연구원 신호 분리형 광 파장 변환기
US7542686B2 (en) * 2004-02-20 2009-06-02 Alcatel-Lucent Usa Inc. Reset free devices
JP4789460B2 (ja) * 2004-12-22 2011-10-12 株式会社アドバンテスト 光スイッチ及び光試験装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679893A (en) * 1983-08-26 1987-07-14 Hughes Aircraft Company High switching frequency optical waveguide switch, modulator, and filter devices
EP0153312B1 (en) * 1983-08-26 1990-03-21 Hughes Aircraft Company Electro-optical filter device
JPH0672964B2 (ja) * 1986-02-07 1994-09-14 日本電信電話株式会社 導波形光干渉計
EP0361152A3 (de) * 1988-09-30 1991-01-16 Siemens Aktiengesellschaft Vorrichtung zur Erzeugung orthogonal zueinander polarisierter optischer Wellen aus einer zugeführten optischen Welle
JPH03131825A (ja) * 1989-10-18 1991-06-05 Hitachi Ltd 光周波数シフタ
GB2239715B (en) * 1990-01-06 1994-04-27 Plessey Co Plc Integrated optical device
US5230028A (en) * 1991-12-02 1993-07-20 The Regents Of The University Of California Electro-optic intensity modulator with improved linearity
US5309532A (en) * 1991-12-02 1994-05-03 The Regents Of The University Of California Electro-optic intensity modulator with improved linearity

Also Published As

Publication number Publication date
NL1004504A1 (nl) 1997-05-21
US5828796A (en) 1998-10-27
NL1004504C2 (nl) 1997-05-30
KR100204026B1 (ko) 1999-06-15

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