NO912000D0 - Enhet for forsterkning av lyssignaler i fiberoptiske overfoeringslinjer. - Google Patents

Enhet for forsterkning av lyssignaler i fiberoptiske overfoeringslinjer.

Info

Publication number
NO912000D0
NO912000D0 NO912000A NO912000A NO912000D0 NO 912000 D0 NO912000 D0 NO 912000D0 NO 912000 A NO912000 A NO 912000A NO 912000 A NO912000 A NO 912000A NO 912000 D0 NO912000 D0 NO 912000D0
Authority
NO
Norway
Prior art keywords
unit
light signals
fiber optical
optical transfer
transfer lines
Prior art date
Application number
NO912000A
Other languages
English (en)
Other versions
NO912000L (no
Inventor
Giorgio Grasso
Aldo Righetti
Original Assignee
Pirelli Cavi Spa
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 Pirelli Cavi Spa filed Critical Pirelli Cavi Spa
Publication of NO912000D0 publication Critical patent/NO912000D0/no
Publication of NO912000L publication Critical patent/NO912000L/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S2301/00—Functional characteristics
    • H01S2301/02—ASE (amplified spontaneous emission), noise; Reduction thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Power Engineering (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Transform (AREA)
NO91912000A 1990-05-25 1991-05-24 Enhet for forsterkning av lyssignaler i fiberoptiske overfoeringsledninger NO912000L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02043490A IT1248821B (it) 1990-05-25 1990-05-25 Linea di telecomunicazione a fibre ottiche con amplificatori ottici a fibra attiva con ridotte riflessioni

Publications (2)

Publication Number Publication Date
NO912000D0 true NO912000D0 (no) 1991-05-24
NO912000L NO912000L (no) 1991-11-26

Family

ID=11166891

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91912000A NO912000L (no) 1990-05-25 1991-05-24 Enhet for forsterkning av lyssignaler i fiberoptiske overfoeringsledninger

Country Status (20)

Country Link
EP (1) EP0458256A1 (no)
JP (1) JPH07107041A (no)
KR (1) KR100192229B1 (no)
CN (1) CN1032029C (no)
AU (1) AU644869B2 (no)
BR (1) BR9102259A (no)
CZ (1) CZ280817B6 (no)
FI (1) FI912525A (no)
HU (1) HU217495B (no)
IE (1) IE911781A1 (no)
IT (1) IT1248821B (no)
MY (1) MY106157A (no)
NO (1) NO912000L (no)
NZ (1) NZ238157A (no)
PE (1) PE26891A1 (no)
PL (1) PL168016B1 (no)
PT (1) PT97751B (no)
RU (1) RU2105419C1 (no)
SK (1) SK278796B6 (no)
TW (1) TW218039B (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4222208A1 (de) * 1992-07-07 1994-01-13 Sel Alcatel Ag Optisches Nachrichtenübertragungssystem mit optischem Filter zum Schutz vor Riesenimpulsen
DE69637562D1 (de) 1995-03-20 2008-07-24 Fujitsu Ltd Verfahren und Vorrichtung zur optischen Signalverarbeitung
DK1067718T3 (da) * 1999-07-08 2004-01-12 Cit Alcatel Anvendelse af isolatorer til at overvinde begrænsningerne for Raman-forstærkning og stammende fra Rayleigh-spredning
CN110702239B (zh) * 2019-10-28 2020-12-18 电子科技大学 一种无限散射单光子探测光时域反射测量方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220789B (en) * 1988-07-15 1992-08-26 Stc Plc Low coherence optical source

Also Published As

Publication number Publication date
KR910021006A (ko) 1991-12-20
CN1057721A (zh) 1992-01-08
BR9102259A (pt) 1992-01-14
CZ280817B6 (cs) 1996-04-17
IT9020434A0 (no) 1990-05-25
KR100192229B1 (ko) 1999-06-15
RU2105419C1 (ru) 1998-02-20
CS152591A3 (en) 1992-02-19
JPH07107041A (ja) 1995-04-21
NZ238157A (en) 1993-07-27
EP0458256A1 (en) 1991-11-27
HU911617D0 (en) 1991-11-28
PT97751A (pt) 1993-06-30
PE26891A1 (es) 1991-09-09
SK278796B6 (sk) 1998-03-04
AU7703891A (en) 1991-11-28
AU644869B2 (en) 1993-12-23
IT1248821B (it) 1995-01-30
MY106157A (en) 1995-03-31
FI912525A (fi) 1991-11-26
IE911781A1 (en) 1991-12-04
HUT60579A (en) 1992-09-28
PT97751B (pt) 1998-12-31
PL290378A1 (en) 1992-01-13
CN1032029C (zh) 1996-06-12
NO912000L (no) 1991-11-26
TW218039B (no) 1993-12-21
IT9020434A1 (it) 1991-11-25
HU217495B (hu) 2000-02-28
PL168016B1 (pl) 1995-12-30
FI912525A0 (fi) 1991-05-24

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