FR2274169B1 - - Google Patents

Info

Publication number
FR2274169B1
FR2274169B1 FR7517757A FR7517757A FR2274169B1 FR 2274169 B1 FR2274169 B1 FR 2274169B1 FR 7517757 A FR7517757 A FR 7517757A FR 7517757 A FR7517757 A FR 7517757A FR 2274169 B1 FR2274169 B1 FR 2274169B1
Authority
FR
France
Prior art keywords
temperature
signal
bandwidth
waveguide
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
Application number
FR7517757A
Other languages
English (en)
Other versions
FR2274169A1 (fr
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of FR2274169A1 publication Critical patent/FR2274169A1/fr
Application granted granted Critical
Publication of FR2274169B1 publication Critical patent/FR2274169B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2581—Multimode transmission
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Light Guides In General And Applications Therefor (AREA)
FR7517757A 1974-06-06 1975-06-06 Perfectionnements aux procedes et dispositifs de commande de la bande passante d'un systeme de communication Granted FR2274169A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2516674A GB1465329A (en) 1974-06-06 1974-06-06 Bandwidth control

Publications (2)

Publication Number Publication Date
FR2274169A1 FR2274169A1 (fr) 1976-01-02
FR2274169B1 true FR2274169B1 (fr) 1979-03-23

Family

ID=10223296

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7517757A Granted FR2274169A1 (fr) 1974-06-06 1975-06-06 Perfectionnements aux procedes et dispositifs de commande de la bande passante d'un systeme de communication

Country Status (5)

Country Link
JP (1) JPS518804A (fr)
DE (1) DE2525326A1 (fr)
FR (1) FR2274169A1 (fr)
GB (1) GB1465329A (fr)
NL (1) NL7506592A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5711195A (en) * 1980-06-23 1982-01-20 Narasaki Zosen Kk Elevation of ship on framework
JPS58200985A (ja) * 1982-05-19 1983-11-22 高砂工業株式会社 瓦の燻化装置
JPS6056712A (ja) * 1983-09-08 1985-04-02 Daifuku Koei Kk 処理設備
JPS6118624A (ja) * 1984-07-03 1986-01-27 Toyo Seikan Kaisha Ltd キヤリジ

Also Published As

Publication number Publication date
DE2525326A1 (de) 1975-12-11
NL7506592A (nl) 1975-12-09
FR2274169A1 (fr) 1976-01-02
GB1465329A (en) 1977-02-23
JPS518804A (fr) 1976-01-24
AU8178775A (en) 1976-12-09

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Legal Events

Date Code Title Description
ST Notification of lapse