WO2009102164A3 - Ｗｄｍ-ｐｏｎ에서의 광 검출 장치 및 그 방법 - Google Patents

Ｗｄｍ-ｐｏｎ에서의 광 검출 장치 및 그 방법 Download PDF

Info

Publication number
WO2009102164A3
WO2009102164A3 PCT/KR2009/000703 KR2009000703W WO2009102164A3 WO 2009102164 A3 WO2009102164 A3 WO 2009102164A3 KR 2009000703 W KR2009000703 W KR 2009000703W WO 2009102164 A3 WO2009102164 A3 WO 2009102164A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
polarized light
seed lightwave
phase
light
Prior art date
Application number
PCT/KR2009/000703
Other languages
English (en)
French (fr)
Other versions
WO2009102164A2 (ko
Inventor
박수진
최영복
Original Assignee
주식회사 케이티
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 주식회사 케이티 filed Critical 주식회사 케이티
Priority to CN200980111391.1A priority Critical patent/CN101981833B/zh
Priority to EP09710029.1A priority patent/EP2256959B1/en
Publication of WO2009102164A2 publication Critical patent/WO2009102164A2/ko
Publication of WO2009102164A3 publication Critical patent/WO2009102164A3/ko
Priority to US12/856,345 priority patent/US8588612B2/en

Links

Classifications

    • 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
    • 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
    • H04B10/2581—Multimode 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
    • 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
    • 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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/63—Homodyne, i.e. coherent receivers where the local oscillator is locked in frequency and phase to the carrier signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Landscapes

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

Abstract

본 발명은 레이저 씨드광(laser seed lightwave) 기반의 WDM-PON(Wavelength Division Multiplexing-Passive Optical Network, 파장 분할 다중화 수동형 광 네트워크)에서의 광 검출 장치 및 그 방법에 관한 것으로, 더욱 상세하게는 씨드광과 상향 신호광 간의 위상 및 편광을 실시간으로 제어하여 해당 전기신호를 검출하거나[제1 실시예], 씨드광과 상향 신호광 간의 위상만을 실시간으로 제어하여 해당 전기신호를 검출하거나[제2 실시예], 씨드광과 상향 신호광 간의 위상 및 편광을 실시간으로 제어하지 않고서 해당 전기신호를 검출하는[제3 실시예], WDM-PON에서의 광 검출 장치 및 그 방법을 제공하고자 한다. 이를 위하여, 본 발명은, 광 검출 장치에 있어서, 씨드광을 분배하고, 상기 씨드광을 기반으로 가입자 장치에서 생성된 상향 신호광을 분배하기 위한 광분배 수단; 상기 분배된 씨드광에 대해 수평편광을 조정하기 위한 수평편광 조정기; 상기 분배된 씨드광에 대해 수직편광을 조정하기 위한 수직편광 조정기; 전기신호를 기반으로, 상기 수평편광이 조정된 씨드광의 위상을 제어하고 상기 수직편광이 조정된 씨드광의 위상을 제어하기 위한 제어수단; 상기 수평편광과 위상이 조정된 씨드광 및 상기 수직편광과 위상이 조정된 씨드광과 상기 분배된 상향 신호광을 각각 결합하여 전기신호로 변환하여 상기 제어수단으로 전달하기 위한 광결합 및 신호변환 수단; 및 상기 변환된 전기신호를 기반으로 상기 상향 신호광에 해당되는 상향신호를 검출하기 위한 신호 검출 수단을 포함한다.
PCT/KR2009/000703 2008-02-13 2009-02-13 Ｗｄｍ-ｐｏｎ에서의 광 검출 장치 및 그 방법 WO2009102164A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200980111391.1A CN101981833B (zh) 2008-02-13 2009-02-13 波分复用-无源光网络中的光检测设备及其方法
EP09710029.1A EP2256959B1 (en) 2008-02-13 2009-02-13 Optical detection device in wdm-pon and method for same
US12/856,345 US8588612B2 (en) 2008-02-13 2010-08-13 Optical detection device in WDM-PON and method for same

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR20080013049 2008-02-13
KR10-2008-0013049 2008-02-13
KR10-2008-0109980 2008-11-06
KR1020080109980A KR20090087805A (ko) 2008-02-13 2008-11-06 Ｗｄｍ-ｐｏｎ에서의 광 검출 장치 및 그 방법
KR1020090011121A KR100977120B1 (ko) 2008-02-13 2009-02-11 Ｗｄｍ-ｐｏｎ에서의 광 검출 장치 및 그 방법
KR10-2009-0011121 2009-02-11

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/856,345 Continuation US8588612B2 (en) 2008-02-13 2010-08-13 Optical detection device in WDM-PON and method for same

Publications (2)

Publication Number Publication Date
WO2009102164A2 WO2009102164A2 (ko) 2009-08-20
WO2009102164A3 true WO2009102164A3 (ko) 2009-11-26

Family

ID=41206728

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/000703 WO2009102164A2 (ko) 2008-02-13 2009-02-13 Ｗｄｍ-ｐｏｎ에서의 광 검출 장치 및 그 방법

Country Status (5)

Country Link
US (1) US8588612B2 (ko)
EP (1) EP2256959B1 (ko)
KR (2) KR20090087805A (ko)
CN (1) CN101981833B (ko)
WO (1) WO2009102164A2 (ko)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101104550B1 (ko) * 2008-10-21 2012-01-11 한국과학기술원 Ｗｄｍ－ｐｏｎ에서의 광 검출 장치 및 방법
KR20120057343A (ko) * 2010-11-26 2012-06-05 한국전자통신연구원 광 발생 장치
WO2012149743A1 (zh) 2011-09-15 2012-11-08 华为技术有限公司 信号发送方法、接收方法、无源光网络pon设备和系统
KR101319251B1 (ko) * 2011-11-30 2013-10-18 한국과학기술원 Ｗｄｍ-ｐｏｎ 시스템에서 잡음제거 장치
KR101338822B1 (ko) * 2011-12-26 2013-12-06 연세대학교 산학협력단 광 네트워크
CN103518751A (zh) * 2013-10-28 2014-01-22 上海市农业科学院 一种植物复合杀虫剂
CN104010233B (zh) * 2014-05-15 2018-02-09 北京大学 一种基于rsoa的偏振复用相干检测无源光网络
EP3301831A4 (en) 2015-06-30 2018-07-04 Huawei Technologies Co., Ltd. Method and device for despreading in optical domain
CN105141374B (zh) * 2015-07-30 2019-04-05 电子科技大学 基于rsoa的无源光网络光线路终端接收机及其解调模块
US12092909B2 (en) * 2019-09-03 2024-09-17 Lumentum Operations Llc Integrated semiconductor laser with interferometric amplifier array
CN112350780B (zh) * 2020-11-09 2022-09-30 凌云天博光电科技股份有限公司 一种用于高速pon的相干光通信系统及方法
CN112929083B (zh) * 2021-02-04 2022-04-26 烽火通信科技股份有限公司 一种相干光模块及其监测方法
US20240284080A1 (en) * 2021-07-01 2024-08-22 Francois Menard Switched wavelength optical receiver for direct-detection methods and systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027436A (en) * 1990-04-27 1991-06-25 At&T Bell Laboratories Optical hybrid for coherent detection systems
US20040114939A1 (en) * 2002-12-11 2004-06-17 Taylor Michael George Coherent optical detection and signal processing method and system
US20050100344A1 (en) * 2003-11-06 2005-05-12 Hogan Josh N. System for coherent optical communication
JP2007274235A (ja) * 2006-03-30 2007-10-18 Fujitsu Ltd 光ｄｑｐｓｋ受信器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989200A (en) * 1988-12-22 1991-01-29 Gte Laboratories Incorporated Coherent subcarrier multiplexed optical communication system
GB8912012D0 (en) * 1989-05-25 1989-07-12 British Telecomm Optical networks
US5657307A (en) * 1995-03-10 1997-08-12 Sharp Kabushiki Kaisha Optical data reading apparatus and method
US5905586A (en) 1996-10-31 1999-05-18 Lucent Technologies Inc. Two-way optical fiber communication system having a single light source
US6118565A (en) * 1997-09-30 2000-09-12 Lucent Technologies Inc. Coherent optical communication system
US6782211B1 (en) * 1998-11-05 2004-08-24 Mark T. Core Cross polarization interface canceler
US7110677B2 (en) * 2001-09-26 2006-09-19 Celight, Inc. Method and system for optical time division multiplexed fiber communications with coherent detection
KR100990780B1 (ko) 2003-12-05 2010-10-29 주식회사 케이티 파장 분할 다중화 방식의 수동형 광 가입자망 시스템
KR100768641B1 (ko) 2005-03-16 2007-10-18 주식회사 케이티 공유 시드 광원을 이용하는 파장분할다중화 전송 시스템
US7606498B1 (en) * 2005-10-21 2009-10-20 Nortel Networks Limited Carrier recovery in a coherent optical receiver
KR100819034B1 (ko) 2006-05-11 2008-04-03 한국전자통신연구원 반사형 반도체 광증폭기 기반 수동형 광가입자망
US8032034B2 (en) * 2006-06-29 2011-10-04 Nippon Telegraph And Telephone Corporation Optical code communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5027436A (en) * 1990-04-27 1991-06-25 At&T Bell Laboratories Optical hybrid for coherent detection systems
US20040114939A1 (en) * 2002-12-11 2004-06-17 Taylor Michael George Coherent optical detection and signal processing method and system
US20050100344A1 (en) * 2003-11-06 2005-05-12 Hogan Josh N. System for coherent optical communication
JP2007274235A (ja) * 2006-03-30 2007-10-18 Fujitsu Ltd 光ｄｑｐｓｋ受信器

Also Published As

Publication number Publication date
KR100977120B1 (ko) 2010-08-23
KR20090087823A (ko) 2009-08-18
EP2256959A2 (en) 2010-12-01
KR20090087805A (ko) 2009-08-18
CN101981833A (zh) 2011-02-23
US8588612B2 (en) 2013-11-19
US20100303462A1 (en) 2010-12-02
EP2256959A4 (en) 2012-12-05
CN101981833B (zh) 2014-05-21
WO2009102164A2 (ko) 2009-08-20
EP2256959B1 (en) 2016-05-25

Similar Documents

Publication Publication Date Title
WO2009102164A3 (ko) Ｗｄｍ-ｐｏｎ에서의 광 검출 장치 및 그 방법
WO2010143859A3 (ko) 파장분할 다중방식 수동형 광 가입자망에서 광원을 제어하기 위한 기법
WO2008045126A3 (en) Lidar system utilizing soi-based opto-electronic compounds
US20100166423A1 (en) Method, device, and system for polarization division multiplexing and demultiplexing
WO2012105780A3 (ko) 듀얼 포커싱 광 결맞음 영상 장치
JP5797839B2 (ja) 光パワーを制御するための方法および装置
WO2011110126A3 (zh) 自注入光收发模块和波分复用无源光网络系统
TW200942865A (en) Systems and methods for polarization modulation of an optical signal
WO2008067746A1 (fr) Procédé et dispositif pour stabiliser la longueur d'onde d'un signal optique multicanal
WO2011078609A3 (ko) 파장 가변 레이저의 발진 파장을 조절하는 장치 및 방법, 및 이를 구비한 파장 분할 다중방식 수동형 광 가입자망
GB2517859A (en) Fiber optic sensing systems and methods of operating the same
WO2014004832A3 (en) Co2 laser based splicing feedback system
WO2012103832A3 (zh) 信号处理方法、光接收机以及光网络系统
WO2012103838A2 (zh) 光纤测试方法、装置和无源光网络系统
WO2015040484A3 (en) Onu and remote node for supporting inter-onu internetworking
WO2012079480A1 (zh) 动态频偏矫正的方法及相干光时域反射仪系统
WO2012162217A3 (en) Variable polarization separation via beam splitter rotation
US9264135B2 (en) Bidirectional pentaplex system and method
JP2005079833A (ja) 分散補償制御方法及び装置並びに光伝送方法及びシステム
US20120002962A1 (en) Wdm signal light monitoring apparatus, wdm system and wdm signal light monitoring method
TW200639374A (en) Integrated fiber optic gyro sensing device
JP4150193B2 (ja) 波長制御装置及び波長制御方法
IN2012DN01173A (ko)
JP2014502727A5 (ko)
WO2005008328A3 (en) Optical frequency converter for non-polarized light

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980111391.1

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09710029

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2009710029

Country of ref document: EP