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GB2333918B - Transmitter for use in a multi-channel multiplex communication system - Google Patents

Transmitter for use in a multi-channel multiplex communication system

Info

Publication number
GB2333918B
GB2333918B GB9912636A GB9912636A GB2333918B GB 2333918 B GB2333918 B GB 2333918B GB 9912636 A GB9912636 A GB 9912636A GB 9912636 A GB9912636 A GB 9912636A GB 2333918 B GB2333918 B GB 2333918B
Authority
GB
United Kingdom
Prior art keywords
transmitter
communication system
multiplex communication
channel multiplex
channel
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
GB9912636A
Other versions
GB9912636D0 (en
GB2333918A (en
Inventor
Hiroaki Tomofuji
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 JP00614195A external-priority patent/JP3306693B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB9912636D0 publication Critical patent/GB9912636D0/en
Publication of GB2333918A publication Critical patent/GB2333918A/en
Application granted granted Critical
Publication of GB2333918B publication Critical patent/GB2333918B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/506—Multiwavelength transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • H04J14/02216—Power control, e.g. to keep the total optical power constant by gain equalization
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
GB9912636A 1995-01-19 1996-01-19 Transmitter for use in a multi-channel multiplex communication system Expired - Lifetime GB2333918B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP00614195A JP3306693B2 (en) 1995-01-19 1995-01-19 Optical amplifier, optical wavelength division multiplexing communication system, optical terminal equipment and optical repeater
GB9601079A GB2297212B (en) 1995-01-19 1996-01-19 Multi-channel multiplex communications means

Publications (3)

Publication Number Publication Date
GB9912636D0 GB9912636D0 (en) 1999-07-28
GB2333918A GB2333918A (en) 1999-08-04
GB2333918B true GB2333918B (en) 1999-11-10

Family

ID=26308492

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9912638A Expired - Lifetime GB2333919B (en) 1995-01-19 1996-01-19 Repeater for use in a multi-channel multiplex communication system
GB9912636A Expired - Lifetime GB2333918B (en) 1995-01-19 1996-01-19 Transmitter for use in a multi-channel multiplex communication system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9912638A Expired - Lifetime GB2333919B (en) 1995-01-19 1996-01-19 Repeater for use in a multi-channel multiplex communication system

Country Status (1)

Country Link
GB (2) GB2333919B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6723978B1 (en) * 2001-10-05 2004-04-20 Lockheed Martin Corporation Fiber optic conversion system and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0834454B2 (en) * 1990-03-01 1996-03-29 国際電信電話株式会社 Optical repeater monitoring system

Also Published As

Publication number Publication date
GB2333919A (en) 1999-08-04
GB9912636D0 (en) 1999-07-28
GB2333918A (en) 1999-08-04
GB9912638D0 (en) 1999-07-28
GB2333919B (en) 1999-11-10

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20160118