DE69424471T2 - Optische Modulationsvorrichtung - Google Patents

Optische Modulationsvorrichtung

Info

Publication number
DE69424471T2
DE69424471T2 DE69424471T DE69424471T DE69424471T2 DE 69424471 T2 DE69424471 T2 DE 69424471T2 DE 69424471 T DE69424471 T DE 69424471T DE 69424471 T DE69424471 T DE 69424471T DE 69424471 T2 DE69424471 T2 DE 69424471T2
Authority
DE
Germany
Prior art keywords
modulation device
optical modulation
optical
modulation
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
DE69424471T
Other languages
English (en)
Other versions
DE69424471D1 (de
Inventor
Hisao Kawashima
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69424471D1 publication Critical patent/DE69424471D1/de
Publication of DE69424471T2 publication Critical patent/DE69424471T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Communication System (AREA)
DE69424471T 1993-06-25 1994-06-24 Optische Modulationsvorrichtung Expired - Fee Related DE69424471T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5154075A JP2518138B2 (ja) 1993-06-25 1993-06-25 光変調装置

Publications (2)

Publication Number Publication Date
DE69424471D1 DE69424471D1 (de) 2000-06-21
DE69424471T2 true DE69424471T2 (de) 2000-10-19

Family

ID=15576348

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69424471T Expired - Fee Related DE69424471T2 (de) 1993-06-25 1994-06-24 Optische Modulationsvorrichtung

Country Status (4)

Country Link
US (1) US5521749A (de)
EP (1) EP0631169B1 (de)
JP (1) JP2518138B2 (de)
DE (1) DE69424471T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2677234B2 (ja) * 1995-03-17 1997-11-17 日本電気株式会社 光変調装置
JP2820138B2 (ja) * 1996-11-26 1998-11-05 日本電気株式会社 光変調装置
GB9700440D0 (en) * 1997-01-10 1997-02-26 Plessey Telecomm Operation of optical modulators
DE10047380B4 (de) * 2000-09-25 2007-05-10 Siemens Ag Verfahren zum Regeln des Arbeitsbereiches eines Modulators und zugehörige Ansteuereinheit
GB0103072D0 (en) * 2001-02-08 2001-03-21 Marconi Comm Ltd Interferometer
US7308210B2 (en) 2002-04-05 2007-12-11 Kabushiki Kaisha Toshiba Optical modulating device, optical transmitting apparatus using the same, method of controlling optical modulating device, and control program recording medium
JP4643220B2 (ja) * 2004-10-21 2011-03-02 富士通オプティカルコンポーネンツ株式会社 光送信装置
US7643759B2 (en) * 2005-01-12 2010-01-05 Sumitomo Electric Industries, Ltd. Signal-quality evaluation device, signal adjustment method, optical-signal evaluation system, and optical transmission system
US7155071B2 (en) * 2005-03-08 2006-12-26 Harris Corporation Device for Mach-Zehnder modulator bias control for duobinary optical transmission and associated system and method
JP4640082B2 (ja) * 2005-09-29 2011-03-02 横河電機株式会社 光変調装置及び光変調器制御方法
JP4688645B2 (ja) * 2005-11-17 2011-05-25 登志江 中田 食品容器
PL2084571T3 (pl) 2006-11-16 2017-05-31 Bae Systems Plc Regulator polaryzacji do modulatora optycznego
JP4999109B2 (ja) * 2008-03-28 2012-08-15 古河電気工業株式会社 光デバイスの制御方法および光デバイス制御装置
JP2010127777A (ja) * 2008-11-27 2010-06-10 Sumitomo Osaka Cement Co Ltd 電界計測装置
PL2845048T3 (pl) * 2012-05-02 2017-08-31 Bae Systems Plc Regulacja napięć polaryzacji dla modulatorów optycznych
GB2502259A (en) * 2012-05-02 2013-11-27 Bae Systems Plc Finding a bias voltage for an optical modulator
GB2502261A (en) * 2012-05-02 2013-11-27 Bae Systems Plc Controlling a bias voltage for an optical modulator
EP2660648A1 (de) * 2012-05-02 2013-11-06 BAE Systems PLC Verfahren und Vorrichtung zur Regelung der Vorspannung eines optischen Modulators
US10011076B2 (en) 2014-02-20 2018-07-03 Global Filtration Systems Apparatus and method for forming three-dimensional objects using a tilting solidification substrate
CN113452447B (zh) * 2021-05-19 2023-04-11 华南师范大学 电光强度调制器长期直流偏置点漂移的修正装置及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845005B2 (ja) * 1976-09-14 1983-10-06 日本ビクター株式会社 光変調の変調度安定化装置
JPS56165122A (en) * 1980-05-24 1981-12-18 Nippon Telegr & Teleph Corp <Ntt> Direct current drift preventing method in optical modulator and optical deflecting device
JPS5868250A (ja) * 1981-10-19 1983-04-23 Teac Co 光変調装置
JPS5917527A (ja) * 1982-07-21 1984-01-28 Toshiba Corp 光変調器のバイアス制御装置
JPH0627913B2 (ja) * 1984-12-21 1994-04-13 ソニー株式会社 光変調装置
US5054116A (en) * 1989-09-29 1991-10-01 Hewlett-Packard Company Feed-forward automatic level control circuit for a high-frequency source
JPH03189616A (ja) * 1989-12-19 1991-08-19 Fujitsu Ltd 導波路型光変調器の動作安定化方法

Also Published As

Publication number Publication date
US5521749A (en) 1996-05-28
JP2518138B2 (ja) 1996-07-24
EP0631169B1 (de) 2000-05-17
JPH0713113A (ja) 1995-01-17
EP0631169A3 (de) 1995-09-06
DE69424471D1 (de) 2000-06-21
EP0631169A2 (de) 1994-12-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee