FI910307A0 - Optisk effektfoerstaerkare foersedd med legerade optiska fibrer. - Google Patents

Optisk effektfoerstaerkare foersedd med legerade optiska fibrer.

Info

Publication number
FI910307A0
FI910307A0 FI910307A FI910307A FI910307A0 FI 910307 A0 FI910307 A0 FI 910307A0 FI 910307 A FI910307 A FI 910307A FI 910307 A FI910307 A FI 910307A FI 910307 A0 FI910307 A0 FI 910307A0
Authority
FI
Finland
Prior art keywords
optiska
legerade
effektfoerstaerkare
optisk
fiber
Prior art date
Application number
FI910307A
Other languages
English (en)
Other versions
FI104292B (fi
FI104292B1 (fi
FI910307A (fi
Inventor
Giorgio Grasso
Aldo Righetti
Fausto Meli
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11155037&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI910307(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pirelli Cavi Spa filed Critical Pirelli Cavi Spa
Publication of FI910307A0 publication Critical patent/FI910307A0/fi
Publication of FI910307A publication Critical patent/FI910307A/fi
Application granted granted Critical
Publication of FI104292B publication Critical patent/FI104292B/fi
Publication of FI104292B1 publication Critical patent/FI104292B1/fi

Links

Classifications

    • 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
    • H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
    • 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
    • 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
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1691—Solid materials characterised by additives / sensitisers / promoters as further dopants
    • H01S3/1693—Solid materials characterised by additives / sensitisers / promoters as further dopants aluminium
FI910307A 1990-01-22 1991-01-21 Seostetulla aktiivikuiduilla varustettu optinen tehovahvistin FI104292B1 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1912890 1990-01-22
IT01912890A IT1238333B (it) 1990-01-22 1990-01-22 Amplificatore ottico di potenza a fibra attiva drogata

Publications (4)

Publication Number Publication Date
FI910307A0 true FI910307A0 (fi) 1991-01-21
FI910307A FI910307A (fi) 1991-07-23
FI104292B FI104292B (fi) 1999-12-15
FI104292B1 FI104292B1 (fi) 1999-12-15

Family

ID=11155037

Family Applications (1)

Application Number Title Priority Date Filing Date
FI910307A FI104292B1 (fi) 1990-01-22 1991-01-21 Seostetulla aktiivikuiduilla varustettu optinen tehovahvistin

Country Status (23)

Country Link
EP (1) EP0439867B1 (fi)
JP (1) JP3461358B2 (fi)
KR (1) KR100196086B1 (fi)
CN (1) CN1024873C (fi)
AT (1) ATE107088T1 (fi)
AU (1) AU647760B2 (fi)
BR (1) BR9100342A (fi)
CA (1) CA2034658C (fi)
CZ (1) CZ280804B6 (fi)
DE (1) DE69009725T2 (fi)
DK (1) DK0439867T3 (fi)
ES (1) ES2055863T3 (fi)
FI (1) FI104292B1 (fi)
HK (1) HK94695A (fi)
HU (1) HU214138B (fi)
IE (1) IE65823B1 (fi)
IT (1) IT1238333B (fi)
MY (1) MY105416A (fi)
NO (1) NO303604B1 (fi)
NZ (1) NZ236702A (fi)
PL (1) PL164845B1 (fi)
PT (1) PT96546A (fi)
SK (1) SK278754B6 (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1271774B (it) * 1994-12-16 1997-06-09 Pirelli Cavi Spa Sistema di telecomunicazione a multiplazione di lunghezza d'onda con fibre ottiche a dispersione cromatica spostata
JPH08248455A (ja) * 1995-03-09 1996-09-27 Fujitsu Ltd 波長多重用光増幅器
JP3422398B2 (ja) * 1995-12-07 2003-06-30 富士通株式会社 重心波長モニタ方法及び装置、光増幅器並びに光通信システム
US5809196A (en) * 1995-12-08 1998-09-15 Pirelli Cavi S.P.A. Dispersion-shifted optical fibers for wavelength division multiplexing
JP3741767B2 (ja) * 1996-02-26 2006-02-01 富士通株式会社 光ファイバ増幅器
US5847863A (en) * 1996-04-25 1998-12-08 Imra America, Inc. Hybrid short-pulse amplifiers with phase-mismatch compensated pulse stretchers and compressors
US6369938B1 (en) 1996-05-28 2002-04-09 Fujitsu Limited Multi-wavelength light amplifier
US6603596B2 (en) 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
KR20000074483A (ko) * 1999-05-21 2000-12-15 김효근 코어에 어븀이 도핑된 광섬유의 클래드 영역에 사마리움을 첨가하는 방법
JP4223887B2 (ja) * 2003-08-11 2009-02-12 株式会社小松製作所 ２ステージレーザのパルスエネルギー制御装置及び２ステージレーザシステム
WO2011013779A1 (ja) 2009-07-29 2011-02-03 株式会社小松製作所 極端紫外光源装置、極端紫外光源装置の制御方法、およびそのプログラムを記録した記録媒体

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674830A (en) * 1983-11-25 1987-06-23 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
GB8813769D0 (en) * 1988-06-10 1988-07-13 Pirelli General Plc Optical fibre
US5005175A (en) * 1989-11-27 1991-04-02 At&T Bell Laboratories Erbium-doped fiber amplifier

Also Published As

Publication number Publication date
HUT60044A (en) 1992-07-28
FI104292B (fi) 1999-12-15
HK94695A (en) 1995-06-23
IE65823B1 (en) 1995-11-15
IE910188A1 (en) 1991-07-31
CZ280804B6 (cs) 1996-04-17
NO303604B1 (no) 1998-08-03
AU647760B2 (en) 1994-03-31
FI104292B1 (fi) 1999-12-15
ATE107088T1 (de) 1994-06-15
CN1053714A (zh) 1991-08-07
PL288791A1 (en) 1991-08-26
IT1238333B (it) 1993-07-12
PT96546A (pt) 1992-09-30
NO910237L (no) 1991-07-23
IT9019128A0 (it) 1990-01-22
NO910237D0 (no) 1991-01-21
SK278754B6 (sk) 1998-02-04
HU910228D0 (en) 1991-08-28
JPH04312988A (ja) 1992-11-04
HU214138B (en) 1997-12-29
CA2034658C (en) 2001-05-29
CN1024873C (zh) 1994-06-01
KR100196086B1 (ko) 1999-06-15
KR910014736A (ko) 1991-08-31
EP0439867B1 (en) 1994-06-08
CA2034658A1 (en) 1991-07-23
IT9019128A1 (it) 1991-07-23
NZ236702A (en) 1993-12-23
DE69009725T2 (de) 1994-09-29
DE69009725D1 (de) 1994-07-14
ES2055863T3 (es) 1994-09-01
EP0439867A1 (en) 1991-08-07
AU6857990A (en) 1991-07-25
FI910307A (fi) 1991-07-23
CS9100124A2 (en) 1991-09-15
DK0439867T3 (da) 1994-10-31
MY105416A (en) 1994-09-30
JP3461358B2 (ja) 2003-10-27
BR9100342A (pt) 1991-10-22
PL164845B1 (pl) 1994-10-31

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