GB2333410B - Optical noise monitor - Google Patents

Optical noise monitor

Info

Publication number
GB2333410B
GB2333410B GB9824560A GB9824560A GB2333410B GB 2333410 B GB2333410 B GB 2333410B GB 9824560 A GB9824560 A GB 9824560A GB 9824560 A GB9824560 A GB 9824560A GB 2333410 B GB2333410 B GB 2333410B
Authority
GB
United Kingdom
Prior art keywords
signal
noise
noise monitor
optical
dwdm
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB9824560A
Other languages
English (en)
Other versions
GB9824560D0 (en
GB2333410A (en
Inventor
David M Braun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP Inc
Agilent Technologies Inc
Original Assignee
Agilent Technologies Inc
Hewlett Packard Co
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 Agilent Technologies Inc, Hewlett Packard Co filed Critical Agilent Technologies Inc
Publication of GB9824560D0 publication Critical patent/GB9824560D0/en
Publication of GB2333410A publication Critical patent/GB2333410A/en
Application granted granted Critical
Publication of GB2333410B publication Critical patent/GB2333410B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
    • G01J3/36—Investigating two or more bands of a spectrum by separate detectors
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Light Receiving Elements (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Optical Filters (AREA)
GB9824560A 1997-11-26 1998-11-09 Optical noise monitor Expired - Fee Related GB2333410B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/979,463 US6075632A (en) 1997-11-26 1997-11-26 Optical noise monitor

Publications (3)

Publication Number Publication Date
GB9824560D0 GB9824560D0 (en) 1999-01-06
GB2333410A GB2333410A (en) 1999-07-21
GB2333410B true GB2333410B (en) 2003-05-07

Family

ID=25526903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9824560A Expired - Fee Related GB2333410B (en) 1997-11-26 1998-11-09 Optical noise monitor

Country Status (4)

Country Link
US (1) US6075632A (enExample)
JP (1) JPH11287705A (enExample)
DE (1) DE19830809A1 (enExample)
GB (1) GB2333410B (enExample)

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JP3949977B2 (ja) * 2002-02-18 2007-07-25 沖電気工業株式会社 波長分割多重通信用光分波器
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US6728023B1 (en) 2002-05-28 2004-04-27 Silicon Light Machines Optical device arrays with optimized image resolution
US6767751B2 (en) 2002-05-28 2004-07-27 Silicon Light Machines, Inc. Integrated driver process flow
US7054515B1 (en) 2002-05-30 2006-05-30 Silicon Light Machines Corporation Diffractive light modulator-based dynamic equalizer with integrated spectral monitor
US6822797B1 (en) 2002-05-31 2004-11-23 Silicon Light Machines, Inc. Light modulator structure for producing high-contrast operation using zero-order light
US6829258B1 (en) 2002-06-26 2004-12-07 Silicon Light Machines, Inc. Rapidly tunable external cavity laser
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US6714337B1 (en) 2002-06-28 2004-03-30 Silicon Light Machines Method and device for modulating a light beam and having an improved gamma response
US6801354B1 (en) 2002-08-20 2004-10-05 Silicon Light Machines, Inc. 2-D diffraction grating for substantially eliminating polarization dependent losses
US7057795B2 (en) 2002-08-20 2006-06-06 Silicon Light Machines Corporation Micro-structures with individually addressable ribbon pairs
US6712480B1 (en) 2002-09-27 2004-03-30 Silicon Light Machines Controlled curvature of stressed micro-structures
US6928207B1 (en) 2002-12-12 2005-08-09 Silicon Light Machines Corporation Apparatus for selectively blocking WDM channels
US7057819B1 (en) 2002-12-17 2006-06-06 Silicon Light Machines Corporation High contrast tilting ribbon blazed grating
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US20070166033A1 (en) * 2006-01-10 2007-07-19 Fujitsu Limited Analyzing the quality of an optical waveform
FR3007148B1 (fr) * 2013-06-17 2016-11-25 Centre Nat De La Rech Scient - Cnrs Element de filtrage optique angulaire pour le filtrage angulaire a selectivite angulaire controlee
JP2015102796A (ja) * 2013-11-27 2015-06-04 セイコーエプソン株式会社 光分岐装置
US9820017B2 (en) * 2014-08-06 2017-11-14 Teledyne Instruments, Inc. Subsea connector with data collection and communication system and method
US9385829B2 (en) * 2014-10-28 2016-07-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Optical transceiver having optics with rotated optical path
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JP7241461B2 (ja) * 2017-12-19 2023-03-17 日本ルメンタム株式会社 光合分波器、光サブアセンブリ及び光モジュール
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014752A (en) * 1978-01-31 1979-08-30 Nippon Telegraph & Telephone Element for use in optical multiplexer or de-multiplexer
EP0164170A2 (en) * 1984-06-07 1985-12-11 ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a. Demultiplexer (multiplexer) for transmission systems in optical fiber
US5583683A (en) * 1995-06-15 1996-12-10 Optical Corporation Of America Optical multiplexing device
EP0859251A1 (en) * 1997-02-14 1998-08-19 Corning Incorporated Multiplexing device with precision optical block
GB2333409A (en) * 1997-11-13 1999-07-21 Hewlett Packard Co Wavelength monitor for optical WDM signals

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JPS54103055A (en) * 1978-01-31 1979-08-14 Nippon Telegr & Teleph Corp <Ntt> Spectrometer
CA1250170A (en) * 1985-07-16 1989-02-21 Jerzy A. Dobrowolski Optical mixing/demixing device
US4768849A (en) * 1986-09-15 1988-09-06 Hicks Jr John W Filter tap for optical communications systems
US5920411A (en) * 1997-02-14 1999-07-06 Duck; Gary S. Optical multiplexing/demultiplexing device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2014752A (en) * 1978-01-31 1979-08-30 Nippon Telegraph & Telephone Element for use in optical multiplexer or de-multiplexer
EP0164170A2 (en) * 1984-06-07 1985-12-11 ITALTEL SOCIETA ITALIANA TELECOMUNICAZIONI s.p.a. Demultiplexer (multiplexer) for transmission systems in optical fiber
US5583683A (en) * 1995-06-15 1996-12-10 Optical Corporation Of America Optical multiplexing device
EP0859251A1 (en) * 1997-02-14 1998-08-19 Corning Incorporated Multiplexing device with precision optical block
GB2333409A (en) * 1997-11-13 1999-07-21 Hewlett Packard Co Wavelength monitor for optical WDM signals

Also Published As

Publication number Publication date
JPH11287705A (ja) 1999-10-19
US6075632A (en) 2000-06-13
GB9824560D0 (en) 1999-01-06
DE19830809A1 (de) 1999-06-02
GB2333410A (en) 1999-07-21

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20061109