FI903980A0 - Optisk foerstaerkare med bredbandig signalvaoglaengd och foersedd med en aktiv optisk fiber med tvao kaernor. - Google Patents

Optisk foerstaerkare med bredbandig signalvaoglaengd och foersedd med en aktiv optisk fiber med tvao kaernor.

Info

Publication number
FI903980A0
FI903980A0 FI903980A FI903980A FI903980A0 FI 903980 A0 FI903980 A0 FI 903980A0 FI 903980 A FI903980 A FI 903980A FI 903980 A FI903980 A FI 903980A FI 903980 A0 FI903980 A0 FI 903980A0
Authority
FI
Finland
Prior art keywords
med
kaernor
foersed
medical equipment
tvao
Prior art date
Application number
FI903980A
Other languages
English (en)
Finnish (fi)
Inventor
Giorgio Grasso
Paul Laurence Scrivener
Andrew Paul Appleyard
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=26295738&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI903980(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB898918377A external-priority patent/GB8918377D0/en
Priority claimed from IT01934090A external-priority patent/IT1237979B/it
Application filed by Pirelli Cavi Spa filed Critical Pirelli Cavi Spa
Publication of FI903980A0 publication Critical patent/FI903980A0/fi

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
    • G02B6/2835—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals formed or shaped by thermal treatment, e.g. couplers
    • G02B2006/2839—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals formed or shaped by thermal treatment, e.g. couplers fabricated from double or twin core fibres
    • 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
    • H01S2301/04—Gain spectral shaping, flattening
    • 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
    • H01S3/06729—Peculiar transverse fibre profile
    • 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
    • H01S3/06729—Peculiar transverse fibre profile
    • H01S3/06737—Fibre having multiple non-coaxial cores, e.g. multiple active cores or separate cores for pump and gain

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Lasers (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Optical Communication System (AREA)
  • Light Guides In General And Applications Therefor (AREA)
FI903980A 1989-08-11 1990-08-10 Optisk foerstaerkare med bredbandig signalvaoglaengd och foersedd med en aktiv optisk fiber med tvao kaernor. FI903980A0 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898918377A GB8918377D0 (en) 1989-08-11 1989-08-11 Optical fibre structure
IT01934090A IT1237979B (it) 1990-02-12 1990-02-12 Amplificatore ottico a fibra attiva a doppio nucleo,a larga banda di lunghezza d'onda di segnale

Publications (1)

Publication Number Publication Date
FI903980A0 true FI903980A0 (fi) 1990-08-10

Family

ID=26295738

Family Applications (1)

Application Number Title Priority Date Filing Date
FI903980A FI903980A0 (fi) 1989-08-11 1990-08-10 Optisk foerstaerkare med bredbandig signalvaoglaengd och foersedd med en aktiv optisk fiber med tvao kaernor.

Country Status (26)

Country Link
US (2) US5087108A (ja)
EP (1) EP0417441B1 (ja)
JP (1) JP2853893B2 (ja)
KR (1) KR0164606B1 (ja)
CN (1) CN1016551B (ja)
AR (1) AR242685A1 (ja)
AT (1) ATE101456T1 (ja)
AU (1) AU632601B2 (ja)
BR (1) BR9004067A (ja)
CA (1) CA2021801C (ja)
CZ (1) CZ282395B6 (ja)
DE (1) DE69006561T2 (ja)
DK (1) DK0417441T3 (ja)
ES (1) ES2051417T3 (ja)
FI (1) FI903980A0 (ja)
HK (1) HK114494A (ja)
HU (1) HU210856B (ja)
IE (1) IE65559B1 (ja)
MX (1) MX172407B (ja)
MY (1) MY108522A (ja)
NO (1) NO302327B1 (ja)
NZ (1) NZ234688A (ja)
PH (1) PH27426A (ja)
PL (1) PL163026B1 (ja)
PT (1) PT94963B (ja)
SK (1) SK280635B6 (ja)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087108A (en) * 1989-08-11 1992-02-11 Societa' Cavi Pirelli S.P.A. Double-core active-fiber optical amplifier having a wide-band signal wavelength
US5245467A (en) * 1989-10-30 1993-09-14 Pirelli Cavi S.P.A. Amplifier with a samarium-erbium doped active fiber
GB9010943D0 (en) * 1990-05-16 1990-07-04 British Telecomm Wave-guiding structure with lasing properties
GB2245121B (en) * 1990-06-16 1994-03-16 Stc Plc Telemetry
US5155621A (en) * 1990-07-31 1992-10-13 Fujitsu Limited Optical fiber amplifier
FR2675649B1 (fr) * 1991-04-22 1993-07-16 Alcatel Nv Systeme de telecommunications a amplificateurs optiques a fibre pour la transmission de signaux a longues distances.
IL106766A (en) * 1992-08-28 1995-12-31 Hughes Aircraft Co Two-way sebo-optical amplifier for missile guidance data channel repeater
US5319652A (en) * 1993-01-29 1994-06-07 The United States Of America As Represented By The Secretary Of The Navy Super luminescent light source
IT1270032B (it) * 1994-04-14 1997-04-28 Pirelli Cavi Spa Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda
GB9503781D0 (en) * 1994-05-19 1995-04-12 Univ Southampton External cavity laser
IT1273676B (it) 1994-07-25 1997-07-09 Pirelli Cavi Spa Sistema di telecomunicazione amplificata a multiplazione a divisione di lunghezza d'onda,con potenza di ricezione equalizzata
US5566196A (en) * 1994-10-27 1996-10-15 Sdl, Inc. Multiple core fiber laser and optical amplifier
GB2302957B (en) * 1995-07-04 1999-07-21 Pirelli General Plc Optical structures with two optical guidance paths
KR100392820B1 (ko) * 1995-09-26 2003-10-22 삼성전자주식회사 이득평탄용어븀도핑광섬유및그제조장치
GB9803275D0 (en) 1998-02-16 1998-04-08 Univ Southampton Optical fibre filters
US6144677A (en) * 1998-08-11 2000-11-07 Trw Inc. High average power fiber laser system with phase conjugation
KR20010088804A (ko) * 1998-09-16 2001-09-28 알프레드 엘. 미첼슨 다중코어 및 다중모드의 분산유지 섬유
US6366356B1 (en) 1999-04-01 2002-04-02 Trw Inc. High average power fiber laser system with high-speed, parallel wavefront sensor
US6459526B1 (en) 1999-08-09 2002-10-01 Corning Incorporated L band amplifier with distributed filtering
US7085461B2 (en) * 2001-04-30 2006-08-01 Verrillon, Inc. Optical fiber with visualization features
US6574406B2 (en) * 2001-09-11 2003-06-03 Corning Incorporated Selectively absorbing optical fibers for optical amplifiers
US7272287B2 (en) 2005-05-11 2007-09-18 Fitel Usa Corp Optical fiber filter for suppression of amplified spontaneous emission
JP2009105080A (ja) * 2006-01-04 2009-05-14 Sumitomo Electric Ind Ltd 増幅用光ファイバ
JP4892316B2 (ja) * 2006-11-06 2012-03-07 株式会社フジクラ マルチコアファイバ
US7822077B2 (en) * 2007-09-13 2010-10-26 Northrop Grumman Systems Corporation Thulium doped fiber configuration for enhanced high power operation
JP2011510354A (ja) * 2008-01-22 2011-03-31 コーニング インコーポレイテッド アルミニウムドープト光ファイバ
US7848014B2 (en) * 2008-04-09 2010-12-07 Cisco Technology, Inc. Erbium and Erbium/Ytterbium cladding pumped hybrid optical amplifier
WO2011094141A1 (en) * 2010-01-26 2011-08-04 Corning Incorporated Optical fiber
JP5982992B2 (ja) * 2012-04-25 2016-08-31 住友電気工業株式会社 マルチコア光ファイバ

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546476A (en) * 1982-12-10 1985-10-08 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
US4723824A (en) * 1983-11-25 1988-02-09 The Board Of Trustees Of The Leland Stanford Junior University Fiber optic amplifier
EP0272258B1 (en) * 1985-08-13 1992-09-30 Btg International Limited Fabrication of optical fibres
GB8713081D0 (en) * 1987-06-04 1987-07-08 Pirelli General Plc Optical fibre attenuators
IT1215681B (it) * 1988-01-12 1990-02-22 Pirelli General Plc Amplificazione di segnali ottici.
FR2638854B1 (fr) * 1988-11-10 1992-09-04 Comp Generale Electricite Amplificateur laser a fibre optique dopee
US5087108A (en) * 1989-08-11 1992-02-11 Societa' Cavi Pirelli S.P.A. Double-core active-fiber optical amplifier having a wide-band signal wavelength
US5260823A (en) * 1990-05-21 1993-11-09 University Of Southampton Erbium-doped fibre amplifier with shaped spectral gain
US5067789A (en) * 1991-02-14 1991-11-26 Corning Incorporated Fiber optic coupling filter and amplifier
US5216728A (en) * 1991-06-14 1993-06-01 Corning Incorporated Optical fiber amplifier with filter
US5131069A (en) * 1991-08-12 1992-07-14 Corning Incorporated Fiber amplifier having modified gain spectrum

Also Published As

Publication number Publication date
DK0417441T3 (da) 1994-06-13
CN1049434A (zh) 1991-02-20
IE65559B1 (en) 1995-11-01
USRE38298E1 (en) 2003-11-04
NO903536L (no) 1991-02-12
HK114494A (en) 1994-10-27
AR242685A1 (es) 1993-04-30
HU210856B (en) 1995-08-28
US5087108A (en) 1992-02-11
NZ234688A (en) 1992-10-28
PT94963B (pt) 1997-11-28
ATE101456T1 (de) 1994-02-15
KR0164606B1 (ko) 1999-04-15
SK280635B6 (sk) 2000-05-16
CN1016551B (zh) 1992-05-06
MY108522A (en) 1996-10-31
EP0417441B1 (en) 1994-02-09
CA2021801A1 (en) 1991-02-12
AU5983190A (en) 1991-02-14
HUT56975A (en) 1991-10-28
DE69006561D1 (de) 1994-03-24
ES2051417T3 (es) 1994-06-16
BR9004067A (pt) 1991-09-03
EP0417441A1 (en) 1991-03-20
AU632601B2 (en) 1993-01-07
JPH03130724A (ja) 1991-06-04
MX172407B (es) 1993-12-15
CZ282395B6 (cs) 1997-07-16
HU904973D0 (en) 1991-01-28
PH27426A (en) 1993-06-21
PL286444A1 (en) 1991-05-06
JP2853893B2 (ja) 1999-02-03
CA2021801C (en) 1994-11-22
PT94963A (pt) 1992-03-31
DE69006561T2 (de) 1994-08-25
NO903536D0 (no) 1990-08-10
CS395790A3 (en) 1992-04-15
IE902905A1 (en) 1991-02-27
NO302327B1 (no) 1998-02-16
KR910005071A (ko) 1991-03-29
PL163026B1 (pl) 1994-01-31

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Legal Events

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MM Patent lapsed

Owner name: SOCIETA CAVI PIRELLI S.P.A.