DE69127840D1 - Optischer Sender - Google Patents

Optischer Sender

Info

Publication number
DE69127840D1
DE69127840D1 DE69127840T DE69127840T DE69127840D1 DE 69127840 D1 DE69127840 D1 DE 69127840D1 DE 69127840 T DE69127840 T DE 69127840T DE 69127840 T DE69127840 T DE 69127840T DE 69127840 D1 DE69127840 D1 DE 69127840D1
Authority
DE
Germany
Prior art keywords
optical transmitter
transmitter
optical
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 - Lifetime
Application number
DE69127840T
Other languages
English (en)
Other versions
DE69127840T2 (de
Inventor
Naoki Kuwata
Hiroshi Nishimoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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
Priority claimed from JP2050189A external-priority patent/JP2642499B2/ja
Priority claimed from JP2263104A external-priority patent/JP2848942B2/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69127840D1 publication Critical patent/DE69127840D1/de
Publication of DE69127840T2 publication Critical patent/DE69127840T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/01—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 intensity, phase, polarisation or colour 
    • G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
    • G02F1/0123—Circuits for the control or stabilisation of the bias voltage, e.g. automatic bias control [ABC] feedback loops
    • 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
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • 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
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
    • H04B10/50575—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the modulator DC bias
    • 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
    • H04B10/564—Power control
    • 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
    • H04B10/572—Wavelength control
    • 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
    • H04B10/58—Compensation for non-linear transmitter output
    • H04B10/588—Compensation for non-linear transmitter output in external modulation systems
    • 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
    • G02F1/01—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 intensity, phase, polarisation or colour 
    • G02F1/21—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 intensity, phase, polarisation or colour  by interference
    • G02F1/212—Mach-Zehnder type
    • 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
    • G02F1/01—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 intensity, phase, polarisation or colour 
    • G02F1/21—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 intensity, phase, polarisation or colour  by interference
    • G02F1/225—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 intensity, phase, polarisation or colour  by interference in an optical waveguide structure
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/20—Intrinsic phase difference, i.e. optical bias, of an optical modulator; Methods for the pre-set thereof
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/21—Thermal instability, i.e. DC drift, of an optical modulator; Arrangements or methods for the reduction thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
DE69127840T 1990-03-01 1991-02-28 Optischer Sender Expired - Lifetime DE69127840T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2050189A JP2642499B2 (ja) 1990-03-01 1990-03-01 光送信器、光変調器の制御回路および光変調方法
JP2263104A JP2848942B2 (ja) 1990-10-02 1990-10-02 光送信装置

Publications (2)

Publication Number Publication Date
DE69127840D1 true DE69127840D1 (de) 1997-11-13
DE69127840T2 DE69127840T2 (de) 1998-03-05

Family

ID=26390638

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127840T Expired - Lifetime DE69127840T2 (de) 1990-03-01 1991-02-28 Optischer Sender

Country Status (4)

Country Link
US (1) US5170274A (de)
EP (1) EP0444688B1 (de)
CA (1) CA2037351C (de)
DE (1) DE69127840T2 (de)

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US5432629A (en) * 1992-01-17 1995-07-11 Nec Corporation Light transmission device capable of stably transmitting a modulated output light beam
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US5208817A (en) * 1992-04-10 1993-05-04 At&T Bell Laboratories Modulator-based lightwave transmitter
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WO1994028455A1 (en) * 1993-06-01 1994-12-08 United Technologies Corporation An electro-optic modulator having gated-dither bias control
DE4424139C1 (de) * 1994-07-08 1995-03-23 Siemens Ag Optische WDM-Koppelanordnung
JP3846918B2 (ja) * 1994-08-02 2006-11-15 富士通株式会社 光伝送システム、光多重伝送システム及びその周辺技術
JP2697639B2 (ja) * 1994-11-04 1998-01-14 日本電気株式会社 光変調装置
US5526158A (en) * 1994-12-22 1996-06-11 Trw Inc. Low-bias heterodyne fiber-optic communication link
JP2677234B2 (ja) * 1995-03-17 1997-11-17 日本電気株式会社 光変調装置
JPH08316580A (ja) * 1995-05-18 1996-11-29 Fujitsu Ltd 電界吸収型光変調器の駆動回路及び該光変調器を備えた光送信機
JP4086912B2 (ja) * 1995-09-11 2008-05-14 富士通株式会社 光変調器の制御装置
US5727110A (en) * 1995-09-29 1998-03-10 Rosemount Inc. Electro-optic interface for field instrument
US5771114A (en) * 1995-09-29 1998-06-23 Rosemount Inc. Optical interface with safety shutdown
FR2740285B1 (fr) * 1995-10-23 1997-11-21 Alcatel Submarcom Dispositif de modulation d'amplitude a modulateur a electro-absorption
US5744721A (en) * 1995-10-25 1998-04-28 Hinds Instruments, Inc. Electronic control system for an optical assembly
JP3603238B2 (ja) * 1996-03-19 2004-12-22 富士通株式会社 時分割光多重化装置
JP3522044B2 (ja) * 1996-04-19 2004-04-26 富士通株式会社 光伝送システム
JPH10150410A (ja) * 1996-11-19 1998-06-02 Fujitsu Ltd 光パワーモニタ装置、光増幅器及び光送信機
DE69719800T2 (de) * 1996-12-23 2003-10-23 Tellabs Denmark A/S, Ballerup Verfahren und vorrichtung zur lichtmodulation in einer einen mach-zehnder-modulator enthaltenden modulatorschaltung
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JP3748652B2 (ja) * 1997-02-27 2006-02-22 富士通株式会社 インラインアンプを用いた光伝送システム
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SE522272C2 (sv) * 1997-08-20 2004-01-27 Ericsson Telefon Ab L M Optiskt duobinärt sändarsystem och förfarande som använder optisk intensitetsmodulering
US6496300B2 (en) 1998-02-27 2002-12-17 Fujitsu Limited Optical amplifier
US6441955B1 (en) * 1998-02-27 2002-08-27 Fujitsu Limited Light wavelength-multiplexing systems
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US6222861B1 (en) 1998-09-03 2001-04-24 Photonic Solutions, Inc. Method and apparatus for controlling the wavelength of a laser
JP3723358B2 (ja) 1998-11-25 2005-12-07 富士通株式会社 光変調装置及び光変調器の制御方法
JP3591346B2 (ja) * 1998-12-08 2004-11-17 富士通株式会社 光変調器
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US6456221B2 (en) * 1999-10-28 2002-09-24 The National University Of Singapore Method and apparatus for signal detection in ultra wide-band communications
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US6498572B1 (en) 2001-06-18 2002-12-24 The National University Of Singapore Method and apparatus for delta modulator and sigma delta modulator
US20020196865A1 (en) * 2001-06-25 2002-12-26 The National University Of Singapore Cycle-by-cycle synchronous waveform shaping circuits based on time-domain superpostion and convolution
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US20030112862A1 (en) * 2001-12-13 2003-06-19 The National University Of Singapore Method and apparatus to generate ON-OFF keying signals suitable for communications
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JP5405716B2 (ja) * 2006-09-29 2014-02-05 富士通株式会社 光送信機
JP5055968B2 (ja) * 2006-11-14 2012-10-24 富士通株式会社 差動４位相偏移変調器
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JP2010130323A (ja) * 2008-11-27 2010-06-10 Yokogawa Electric Corp 光伝送装置
JP5353387B2 (ja) * 2009-04-06 2013-11-27 富士通株式会社 光変調器の駆動方法および駆動装置、並びに、それを用いた光送信器
US8401399B2 (en) 2009-05-28 2013-03-19 Freedom Photonics, Llc. Chip-based advanced modulation format transmitter
US9344196B1 (en) 2009-05-28 2016-05-17 Freedom Photonics, Llc. Integrated interferometric optical transmitter
JP5821250B2 (ja) 2010-11-19 2015-11-24 富士通オプティカルコンポーネンツ株式会社 光変調装置および光変調制御方法
JP5853386B2 (ja) 2010-12-16 2016-02-09 富士通オプティカルコンポーネンツ株式会社 光変調装置および光変調制御方法
EP2495434B2 (de) * 2011-03-03 2017-10-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. System zur Überwachung des Zustands von Rotorblättern an Windernergieanlagen
CN104467979B (zh) * 2013-09-12 2017-06-27 华为技术有限公司 Qpsk信号的共轭关系识别方法、装置及色散补偿方法、***
JP6620409B2 (ja) 2015-03-11 2019-12-18 富士通株式会社 光送信器、光伝送システム、及び光通信制御方法
US10320152B2 (en) 2017-03-28 2019-06-11 Freedom Photonics Llc Tunable laser
JP6961986B2 (ja) 2017-04-07 2021-11-05 富士通オプティカルコンポーネンツ株式会社 光送信機、及び光伝送方法
CN112769492A (zh) 2019-10-21 2021-05-07 富士通株式会社 监控直流偏置抖动信号的调制深度的方法、装置和光发射机
JP7363670B2 (ja) * 2020-05-20 2023-10-18 住友電気工業株式会社 光送信装置、その制御方法および制御プログラム
CN112859240B (zh) * 2021-03-03 2022-07-15 兰州大学 一种基于马赫增德尔干涉仪的可重构模式转换器

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Also Published As

Publication number Publication date
EP0444688A2 (de) 1991-09-04
DE69127840T2 (de) 1998-03-05
EP0444688A3 (en) 1993-10-06
CA2037351A1 (en) 1991-09-02
US5170274A (en) 1992-12-08
EP0444688B1 (de) 1997-10-08
CA2037351C (en) 1994-10-25

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