KR960027596A - 광 장치 및 그를 이용한 광 통신 시스템 - Google Patents

광 장치 및 그를 이용한 광 통신 시스템 Download PDF

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Publication number
KR960027596A
KR960027596A KR1019950049167A KR19950049167A KR960027596A KR 960027596 A KR960027596 A KR 960027596A KR 1019950049167 A KR1019950049167 A KR 1019950049167A KR 19950049167 A KR19950049167 A KR 19950049167A KR 960027596 A KR960027596 A KR 960027596A
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KR
South Korea
Prior art keywords
ports
optical
combiner
fiber amplifier
optically
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KR1019950049167A
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English (en)
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삐에르 드라보 장-마끄
앙드르 뻬리에 삘립
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디. 엘. 스미스
에이티앤드티 코포레이션
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Application filed by 디. 엘. 스미스, 에이티앤드티 코포레이션 filed Critical 디. 엘. 스미스
Publication of KR960027596A publication Critical patent/KR960027596A/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0226—Fixed carrier allocation, e.g. according to service
    • 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
    • H04B10/50—Transmitters
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2587—Arrangements specific to fibre transmission using a single light source for multiple stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
    • H04J14/0246—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU using one wavelength per ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
    • H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0282—WDM tree architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)

Abstract

광 섬유 증폭기(33) 및 협대역 필터(35)를 갖는 사용자 측 장치에 세개의 포트를 갖는 순환기(31)를 사용하므로써 광 통신 시스템에 있어서의 단일의 광 섬유(7)를 통한 양방향성 전송이 이루어진다. 섬유 증폭기(33)는 근거리 또는 원격지에 위치되어 펌프될 수 있다. 음향-광학 변조기는 실향 및 하향 파장을 비동조시키므로써 간섭 레일리 노이즈를 감소시키므로, 유리하게 이용된다.

Description

광 장치 및 그를 이용한 광 통신 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
도면은 본 발명에 따른 예시적인 광 통신 시스템 및 이 시스템에 사용된 본 발명에 따른 장치를 나타낸 도면이다.

Claims (7)

  1. 적어도 세개의 포트(A,B,C)를 갖는 광 순환기(31)와; 상기 두개의 포트(B,C)에 광학적으로 결합된 섬유 증폭기(33)와; 상기 포트 중 적어도 하나(B)에 광학적으로 접속된 필터(35)와; 상기 포트 중 하나의 포트 및 상기 섬유 증폭기(33)에 광학적으로 결합되며, 데이타를 수신하기 위한 포트를 갖는 변조기(39)와; 상기 섬유 증폭기(33) 및 상기 변조기(39)에 광학적으로 접속된 멀티플렉서 결합기(37)를 포함하는 광 장치.
  2. 제1항에 있어서, 상기 변조기(39)는 음향-광학 변조기인 광 장치.
  3. 제1항에 있어서, 상기 멀티플렉서 결합기(37)에 광학적으로 결합기 수신기(41)를 포함하는 광 장치.
  4. 제1항에 있어서, 상기 멀티플렉서 결합기(37)에 광학적으로 접속된 펌프 레이저(53)를 더 포함하는 광 장치.
  5. 복수의 송신기(103,105)와; 상기 복수의 송신기(103,105) 및 적어도 하나의 펌프 레이저(107,109)에 접속된 결합기(101)와; 상기 결합기(101)에 접속된 광 섬유(7)와; 적어도 세개의 포트(A,B,C)를 갖되, 상기 포트중 하나의 포트(A)는 상기 광 섬유(7)에 접속된 광 순환기(31)와; 상기 포트 중 적어도 하나의 포트에 광학적으로 결합된 섬유 증폭기(33)와; 상기 포트 중 하나의 포트(C) 및 상기 섬유 증폭기(33)에 광학적으로 결합된변조기(39)와; 상기 섬유 증폭기(33)에 광학적으로 결합된 멀티플렉서 결합기(37)를 포함하는 광 통신 시스템.
  6. 제5항에 있어서, 상기 결합기(101)에 광학적으로 접속된 디멀티플렉서(111)를 더 포함하는 광 통신 시스템.
  7. 제6항에 있어서, 상기 결합기에 광학적으로 접속된 복수의 수신기(113,115)를 더 포함하는 광 통신 시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950049167A 1994-12-14 1995-12-13 광 장치 및 그를 이용한 광 통신 시스템 KR960027596A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/355,943 US5572612A (en) 1994-12-14 1994-12-14 Bidirectional optical transmission system
US08/355,943 1994-12-14

Publications (1)

Publication Number Publication Date
KR960027596A true KR960027596A (ko) 1996-07-22

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Family Applications (1)

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KR1019950049167A KR960027596A (ko) 1994-12-14 1995-12-13 광 장치 및 그를 이용한 광 통신 시스템

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Country Link
US (1) US5572612A (ko)
EP (1) EP0717516A1 (ko)
JP (1) JPH08237206A (ko)
KR (1) KR960027596A (ko)

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Also Published As

Publication number Publication date
JPH08237206A (ja) 1996-09-13
US5572612A (en) 1996-11-05
EP0717516A1 (en) 1996-06-19

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