DE2525326A1 - Verfahren und anordnung zur bandbreitenregelung - Google Patents

Verfahren und anordnung zur bandbreitenregelung

Info

Publication number
DE2525326A1
DE2525326A1 DE19752525326 DE2525326A DE2525326A1 DE 2525326 A1 DE2525326 A1 DE 2525326A1 DE 19752525326 DE19752525326 DE 19752525326 DE 2525326 A DE2525326 A DE 2525326A DE 2525326 A1 DE2525326 A1 DE 2525326A1
Authority
DE
Germany
Prior art keywords
signal
bandwidth
light
level
optical waveguide
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.)
Pending
Application number
DE19752525326
Other languages
German (de)
English (en)
Inventor
John Edwin Midwinter
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 DE2525326A1 publication Critical patent/DE2525326A1/de
Pending 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)
DE19752525326 1974-06-06 1975-06-06 Verfahren und anordnung zur bandbreitenregelung Pending DE2525326A1 (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DE2525326A1 true DE2525326A1 (de) 1975-12-11

Family

ID=10223296

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752525326 Pending DE2525326A1 (de) 1974-06-06 1975-06-06 Verfahren und anordnung zur bandbreitenregelung

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
FR2274169B1 (fr) 1979-03-23
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

Similar Documents

Publication Publication Date Title
DE69628624T2 (de) OTDR-Gerät
DE69535448T2 (de) Vorrichtung zur Unterdrückung von stimulierter Brillouin Streuung
DE2652608C3 (de) Anordnung zur Regelung der Ausgangsleistung eines Halbleiterlasers
DE69631534T2 (de) Laserwellenlängen-regelungssystem
DE4024799C2 (de) Amplitudenregelung für eine Hochfrequenzquelle
DE69937014T2 (de) Lichtwellenleiterverzweigung mit Reflektor
DE3874199T2 (de) Einrichtung zur polarisationssteuerung.
DE3331790C2 (fr)
EP0897227A2 (fr) Méthode et dispositif pour stabilisation des longueurs d'onde de systèmes de transmission optiques à canaux multiples
DE2542618C2 (de) Optischer Polarisator, Verfahren zu dessen Herstellung und dessen Verwendung in optischen Isolatoren, Mischern und Detektoren
EP0625835A1 (fr) Système de transmission optique avec diode laser
DE2236486A1 (de) Lichtverstaerker
DE3307309C2 (fr)
EP0003509B1 (fr) Circuit de commande de gain de plusieurs étages d'amplification montés en cascade
DE2733234A1 (de) Kreissymmetrischer optischer faser-wellenleiter
DE2851667A1 (de) Abzweigelement fuer monomode-lichtwellenleiter und verfahren zu seiner herstellung
DE3608930A1 (de) Verfahren zur regelung der optischen leistung eines lasers und schaltung zur ausuebung des verfahrens
EP0173155B1 (fr) Source d'alimentation pour source lumineuse de capteurs optiques à modulation de fréquence
DE19702891C2 (de) Lichtleiterfaserverstärker
DE2932990A1 (de) Verfahren und schaltungsanordnung zum regeln einer ein signal oder eine strahlung abgebenden vorrichtung
DE2849343A1 (de) Schaltung zur automatischen regelung des verstaerkungsfaktors eines empfangskanals
DE2525326A1 (de) Verfahren und anordnung zur bandbreitenregelung
DE2328079A1 (de) Verfahren und vorrichtung zur begrenzung der anzahl von ausbreitungsmoden in wellenleitern
US3944811A (en) Dielectric waveguides
EP0675351B1 (fr) Procédé de détermination dans un fibre optique la longeur d'ondes pour laquelle il y n'a pas de dispersion

Legal Events

Date Code Title Description
OHJ Non-payment of the annual fee