TW200616358A - Monitoring apparatus and method of optical signal-to-noise ratio - Google Patents

Monitoring apparatus and method of optical signal-to-noise ratio

Info

Publication number
TW200616358A
TW200616358A TW093134467A TW93134467A TW200616358A TW 200616358 A TW200616358 A TW 200616358A TW 093134467 A TW093134467 A TW 093134467A TW 93134467 A TW93134467 A TW 93134467A TW 200616358 A TW200616358 A TW 200616358A
Authority
TW
Taiwan
Prior art keywords
signal
osnr
noise
noise ratio
optical
Prior art date
Application number
TW093134467A
Other languages
English (en)
Other versions
TWI249293B (en
Inventor
San-Liang Lee
Chun-Liang Yang
Pei-Min Gong
Dar-Zu Hsu
Ming-Hsiao Yang
Yun Lung Chou
Original Assignee
Ind Tech Res Inst
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 Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW093134467A priority Critical patent/TWI249293B/zh
Priority to US11/026,352 priority patent/US7391970B2/en
Application granted granted Critical
Publication of TWI249293B publication Critical patent/TWI249293B/zh
Publication of TW200616358A publication Critical patent/TW200616358A/zh

Links

Classifications

    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07953—Monitoring or measuring OSNR, BER or Q
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07957—Monitoring or measuring wavelength
    • 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)
TW093134467A 2004-11-11 2004-11-11 Monitoring apparatus and method of optical signal-to-noise ratio TWI249293B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW093134467A TWI249293B (en) 2004-11-11 2004-11-11 Monitoring apparatus and method of optical signal-to-noise ratio
US11/026,352 US7391970B2 (en) 2004-11-11 2004-12-30 Apparatus and method for monitoring optical signal-to-noise ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW093134467A TWI249293B (en) 2004-11-11 2004-11-11 Monitoring apparatus and method of optical signal-to-noise ratio

Publications (2)

Publication Number Publication Date
TWI249293B TWI249293B (en) 2006-02-11
TW200616358A true TW200616358A (en) 2006-05-16

Family

ID=36316447

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093134467A TWI249293B (en) 2004-11-11 2004-11-11 Monitoring apparatus and method of optical signal-to-noise ratio

Country Status (2)

Country Link
US (1) US7391970B2 (zh)
TW (1) TWI249293B (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI477096B (zh) * 2012-10-01 2015-03-11 Chunghwa Telecom Co Ltd A kind of integrated optometry device with enhanced light ratio
TWI639840B (zh) * 2017-04-07 2018-11-01 莊晴光 電磁訊號偵測電路與偵測方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7440170B2 (en) * 2006-06-23 2008-10-21 Lucent Technologies Inc. Method and apparatus for monitoring optical signal-to-noise ratio
US8045861B1 (en) * 2006-11-17 2011-10-25 Hrl Laboratories, Llc Method and system for spectral suppression of noise in a communication signal
US8364034B2 (en) * 2007-04-05 2013-01-29 Exfo Inc. In-band optical noise measurement using differential polarization response
WO2008122123A1 (en) * 2007-04-05 2008-10-16 Exfo Electro-Optical Engineering Inc. Method and system for determining in-band optical noise
US20110129216A1 (en) * 2008-09-17 2011-06-02 Christopher Lin Tunable optical filters
US20100142956A1 (en) * 2008-12-08 2010-06-10 Tellabs Operation, Inc. Method and Apparatus for Reshaping a Channel Signal
EP2432140B1 (en) * 2010-09-17 2014-11-12 ADVA Optical Networking SE Monitoring node and reflector node of an optical communication network, optical communication network, and method for operating an optical communication network
US20130101254A1 (en) * 2011-10-25 2013-04-25 Ming Cai Optical performance monitoring system
CN105227233B (zh) * 2014-05-30 2017-11-03 北京邮电大学 基于并联不对称马赫增德干涉仪的带内光信噪比监测法
JP6306072B2 (ja) * 2016-03-15 2018-04-04 アンリツ株式会社 Ｏｓｎｒ測定装置および測定方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5223705A (en) 1992-08-12 1993-06-29 At&T Bell Laboratories Measurement of an optical amplifier parameter with polarization
US5646762A (en) * 1995-11-07 1997-07-08 Lucent Technologies Inc. Optical communication system using tandem Fabry-Perot etalon for wavelength selection
KR100322124B1 (ko) 1999-01-14 2002-02-04 윤종용 광신호 모니터링 장치 및 방법
US6396574B1 (en) 1999-03-15 2002-05-28 Korea Advanced Institute Science And Technology Apparatus for measuring the wavelength, optical power and optical signal-to-noise ratio of each optical signal in wavelength-division multiplexing optical communication
KR100366209B1 (ko) 1999-07-30 2002-12-31 한국과학기술원 파장분할다중 광전송시스템에서 광신호 대 잡음비 측정장치
US6396051B1 (en) 2000-06-07 2002-05-28 Sycamore Networks, Inc. High resolution optical performance monitor for DWDM system
CN1720680A (zh) * 2002-12-16 2006-01-11 特瑞林克通讯有限公司 利用可调光带通滤波器和偏振致零方法的光信噪比监测方法和设备
US20050232627A1 (en) * 2004-04-20 2005-10-20 Fengguo Sun Method and apparatus for optical performance monitoring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI477096B (zh) * 2012-10-01 2015-03-11 Chunghwa Telecom Co Ltd A kind of integrated optometry device with enhanced light ratio
TWI639840B (zh) * 2017-04-07 2018-11-01 莊晴光 電磁訊號偵測電路與偵測方法

Also Published As

Publication number Publication date
US20060098980A1 (en) 2006-05-11
US7391970B2 (en) 2008-06-24
TWI249293B (en) 2006-02-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees