GB2397389B - Optical transmitter and optical transmission system - Google Patents

Optical transmitter and optical transmission system

Info

Publication number
GB2397389B
GB2397389B GB0409367A GB0409367A GB2397389B GB 2397389 B GB2397389 B GB 2397389B GB 0409367 A GB0409367 A GB 0409367A GB 0409367 A GB0409367 A GB 0409367A GB 2397389 B GB2397389 B GB 2397389B
Authority
GB
United Kingdom
Prior art keywords
optical
transmission system
transmitter
optical transmission
optical transmitter
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
GB0409367A
Other versions
GB0409367D0 (en
GB2397389A (en
Inventor
Hiroshi Nakamoto
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 JP2000210489A external-priority patent/JP4108254B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB0409367D0 publication Critical patent/GB0409367D0/en
Publication of GB2397389A publication Critical patent/GB2397389A/en
Application granted granted Critical
Publication of GB2397389B publication Critical patent/GB2397389B/en
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
    • 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
    • H04B10/5051—Laser transmitters using external modulation using a series, i.e. cascade, combination of modulators
    • 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
    • H04B10/50577—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the phase of the modulating signal
    • 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
    • H04B10/516—Details of coding or modulation
    • H04B10/54—Intensity modulation
    • H04B10/541—Digital intensity or amplitude modulation
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/16—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 series; tandem
    • 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
    • G02F2203/25—Frequency chirping of an optical modulator; Arrangements or methods for the pre-set or tuning thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Communication System (AREA)
GB0409367A 2000-07-11 2001-02-26 Optical transmitter and optical transmission system Expired - Fee Related GB2397389B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000210489A JP4108254B2 (en) 2000-07-11 2000-07-11 Optical transmitter and optical transmission system
GB0104743A GB2364790B (en) 2000-07-11 2001-02-26 Optical transmitter and optical transmission system

Publications (3)

Publication Number Publication Date
GB0409367D0 GB0409367D0 (en) 2004-06-02
GB2397389A GB2397389A (en) 2004-07-21
GB2397389B true GB2397389B (en) 2004-11-10

Family

ID=32599042

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0409367A Expired - Fee Related GB2397389B (en) 2000-07-11 2001-02-26 Optical transmitter and optical transmission system
GB0409366A Expired - Fee Related GB2397388B (en) 2000-07-11 2001-02-26 Optical transmitter and optical transmission system

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0409366A Expired - Fee Related GB2397388B (en) 2000-07-11 2001-02-26 Optical transmitter and optical transmission system

Country Status (1)

Country Link
GB (2) GB2397389B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7742705B2 (en) * 2005-05-23 2010-06-22 Futurewei Technologies, Inc. System and method for chirped light source
CN101621337B (en) * 2008-06-30 2013-08-07 华为技术有限公司 Delay adjustment device and method

Also Published As

Publication number Publication date
GB0409367D0 (en) 2004-06-02
GB0409366D0 (en) 2004-06-02
GB2397388A (en) 2004-07-21
GB2397388B (en) 2004-11-10
GB2397389A (en) 2004-07-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170226