ATE373249T1 - Optische faser - Google Patents

Optische faser

Info

Publication number
ATE373249T1
ATE373249T1 AT02759124T AT02759124T ATE373249T1 AT E373249 T1 ATE373249 T1 AT E373249T1 AT 02759124 T AT02759124 T AT 02759124T AT 02759124 T AT02759124 T AT 02759124T AT E373249 T1 ATE373249 T1 AT E373249T1
Authority
AT
Austria
Prior art keywords
cladding
region
layer
optical fiber
index
Prior art date
Application number
AT02759124T
Other languages
English (en)
Inventor
Hong Po
Original Assignee
Ocg Technology Licensing Llc
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 Ocg Technology Licensing Llc filed Critical Ocg Technology Licensing Llc
Application granted granted Critical
Publication of ATE373249T1 publication Critical patent/ATE373249T1/de

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
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03622—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 2 layers only
    • 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
    • G02B6/032—Optical fibres with cladding with or without a coating with non solid core or cladding
    • 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
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
    • 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
    • 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
    • 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
    • H01S3/09—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
    • H01S3/094007—Cladding pumping, i.e. pump light propagating in a clad surrounding the active core
    • 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
    • H01S3/094042—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a fibre laser
    • 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
    • H01S3/094042—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a fibre laser
    • H01S3/094046—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a fibre laser of a Raman fibre laser

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Lasers (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Glass Compositions (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
AT02759124T 2001-07-12 2002-07-10 Optische faser ATE373249T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30488201P 2001-07-12 2001-07-12

Publications (1)

Publication Number Publication Date
ATE373249T1 true ATE373249T1 (de) 2007-09-15

Family

ID=23178388

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02759124T ATE373249T1 (de) 2001-07-12 2002-07-10 Optische faser

Country Status (5)

Country Link
US (2) US6917742B2 (de)
EP (1) EP1421419B1 (de)
AT (1) ATE373249T1 (de)
DE (1) DE60222440T2 (de)
WO (1) WO2003010578A1 (de)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003010578A1 (en) 2001-07-12 2003-02-06 Ocg Technology Licensing, Llc Optical fiber
EP1482605B1 (de) 2003-05-28 2007-04-04 Fujikura Ltd. Verfahren zum Anregen eines optischen Faserverstärkers
GB0314817D0 (en) * 2003-06-25 2003-07-30 Southampton Photonics Ltd Apparatus for providing optical radiation
US7072552B2 (en) 2004-12-02 2006-07-04 Nufern Optical fiber with micro-structured cladding
EP1942083A1 (de) 2006-12-07 2008-07-09 Datwyler Fiber Optics S.A. Verfahren und Vorrichtung zur Herstellung einer Vorform für eine aktive optische Faser, aktive optische Faser und Verstärker
EP2109788B1 (de) * 2007-02-05 2018-10-31 Furukawa Electric North America Inc. Segmentierte verstärkungsdotierung einer glasfaser
US7876495B1 (en) * 2007-07-31 2011-01-25 Lockheed Martin Corporation Apparatus and method for compensating for and using mode-profile distortions caused by bending optical fibers
US20100316070A1 (en) * 2007-09-25 2010-12-16 Mikhail Sumetsky Asymmetrically perturbed optical fibers for mode transformers
EP2400677B1 (de) 2008-07-30 2017-10-18 Micro Motion, Inc. Datenübersetzungssystem und -verfahren
JP4937988B2 (ja) * 2008-11-21 2012-05-23 株式会社フジクラ 光増幅媒体ファイバのエッチング方法、および光増幅媒体ファイバへの励起光入射構造の製造方法
DE102008062848A1 (de) * 2008-12-23 2010-06-24 Jt Optical Engine Gmbh + Co. Kg Spleißverbindung zwischen zwei optischen Fasern sowie Verfahren zum Herstellen einer solchen Spleißverbindung
JP2011171619A (ja) * 2010-02-22 2011-09-01 Fujikura Ltd 増幅用光ファイバ、及び、それを用いた光ファイバ増幅器
JP5479305B2 (ja) * 2010-11-10 2014-04-23 株式会社フジクラ 光ファイバ、及び、これを用いたレーザ装置
EP2722943A4 (de) 2011-06-16 2014-11-05 Furukawa Electric Co Ltd Mehrkernverstärkung von glasfasern
JP5539594B2 (ja) * 2011-08-26 2014-07-02 湖北工業株式会社 ファイバ及びファイバの製造方法
JP5384679B2 (ja) * 2012-01-19 2014-01-08 湖北工業株式会社 光ファイバ母材を製造する方法及び光ファイバ母材
US10226837B2 (en) 2013-03-15 2019-03-12 Nlight, Inc. Thermal processing with line beams
JP6287164B2 (ja) * 2013-12-18 2018-03-07 住友電気工業株式会社 マルチコア光ファイバ、及び光モジュール
US10069271B2 (en) 2014-06-02 2018-09-04 Nlight, Inc. Scalable high power fiber laser
US10310201B2 (en) 2014-08-01 2019-06-04 Nlight, Inc. Back-reflection protection and monitoring in fiber and fiber-delivered lasers
US9837783B2 (en) 2015-01-26 2017-12-05 Nlight, Inc. High-power, single-mode fiber sources
US10050404B2 (en) 2015-03-26 2018-08-14 Nlight, Inc. Fiber source with cascaded gain stages and/or multimode delivery fiber with low splice loss
CN107924023B (zh) 2015-07-08 2020-12-01 恩耐公司 具有用于增加的光束参数乘积的中心折射率受抑制的纤维
US10768433B2 (en) 2015-09-24 2020-09-08 Nlight, Inc. Beam parameter product (bpp) control by varying fiber-to-fiber angle
US11179807B2 (en) 2015-11-23 2021-11-23 Nlight, Inc. Fine-scale temporal control for laser material processing
CN108367389B (zh) 2015-11-23 2020-07-28 恩耐公司 激光加工方法和装置
US10466494B2 (en) * 2015-12-18 2019-11-05 Nlight, Inc. Reverse interleaving for laser line generators
US9791862B1 (en) 2016-04-25 2017-10-17 Thayermahan, Inc. Systems and method for unmanned undersea sensor position, orientation, and depth keeping
US10661342B2 (en) * 2016-09-29 2020-05-26 Nlight, Inc. Additive manufacturing systems and methods for the same
US10656440B2 (en) * 2016-09-29 2020-05-19 Nlight, Inc. Fiber optical beam delivery device producing output exhibiting intensity distribution profile having non-zero ellipticity
US10739621B2 (en) * 2016-09-29 2020-08-11 Nlight, Inc. Methods of and systems for materials processing using optical beams
US10690928B2 (en) * 2016-09-29 2020-06-23 Nlight, Inc. Methods of and systems for heat deposition in additive manufacturing
US10730785B2 (en) * 2016-09-29 2020-08-04 Nlight, Inc. Optical fiber bending mechanisms
US10656427B2 (en) * 2016-09-29 2020-05-19 Nlight, Inc. Multicore fiber-coupled optical probing techniques
US10663742B2 (en) * 2016-09-29 2020-05-26 Nlight, Inc. Method and system for cutting a material using a laser having adjustable beam characteristics
US10661391B2 (en) * 2016-09-29 2020-05-26 Nlight, Inc. Method of forming pores in three-dimensional objects
US10668567B2 (en) * 2016-09-29 2020-06-02 Nlight, Inc. Multi-operation laser tooling for deposition and material processing operations
US10673197B2 (en) * 2016-09-29 2020-06-02 Nlight, Inc. Fiber-based optical modulator
US10732439B2 (en) * 2016-09-29 2020-08-04 Nlight, Inc. Fiber-coupled device for varying beam characteristics
US10646963B2 (en) * 2016-09-29 2020-05-12 Nlight, Inc. Use of variable beam parameters to control a melt pool
US10684487B2 (en) * 2016-09-29 2020-06-16 Nlight, Inc. Frequency-converted optical beams having adjustable beam characteristics
US10670872B2 (en) * 2016-09-29 2020-06-02 Nlight, Inc. All-fiber optical beam switch
US10668535B2 (en) * 2016-09-29 2020-06-02 Nlight, Inc. Method of forming three-dimensional objects
US10673199B2 (en) * 2016-09-29 2020-06-02 Nlight, Inc. Fiber-based saturable absorber
WO2018063452A1 (en) * 2016-09-29 2018-04-05 Nlight, Inc. Adjustable beam characteristics
US10673198B2 (en) * 2016-09-29 2020-06-02 Nlight, Inc. Fiber-coupled laser with time varying beam characteristics
US10668537B2 (en) * 2016-09-29 2020-06-02 Nlight, Inc. Systems for and methods of temperature control in additive manufacturing
US10649241B2 (en) * 2016-09-29 2020-05-12 Nlight, Inc. Multi-function semiconductor and electronics processing
US9778388B1 (en) 2016-12-22 2017-10-03 Thayermahan, Inc. Systems and methods for autonomous towing of an underwater sensor array
CN106706570B (zh) * 2016-12-26 2019-07-16 哈尔滨工程大学 触点式在体光纤光谱探针及制作方法
JPWO2024195031A1 (de) * 2023-03-22 2024-09-26

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127398A (en) * 1963-09-18 1978-11-28 Ni-Tec, Inc. Multiple-channel tubular devices
US3535017A (en) * 1968-01-08 1970-10-20 Bell Telephone Labor Inc Optical fiber waveguide structures
US3712705A (en) * 1971-05-28 1973-01-23 Bell Telephone Labor Inc Air clad optical fiber waveguide
US3808549A (en) * 1972-03-30 1974-04-30 Corning Glass Works Optical waveguide light source
US3902879A (en) * 1972-08-28 1975-09-02 American Optical Corp Method of making optical fiber with porous cladding
US3920312A (en) * 1972-08-28 1975-11-18 American Optical Corp Optical fiber with porous cladding
US3901674A (en) * 1972-08-30 1975-08-26 American Optical Corp Method of making optical fiber
US4354736A (en) * 1980-06-18 1982-10-19 International Telephone And Telegraph Corporation Stress-induced birefringent single mode optical fiber and a method of fabricating the same
US4630889A (en) * 1983-11-09 1986-12-23 Polaroid Corporation Polarization locked optical fiber and method
US4551162A (en) * 1984-10-01 1985-11-05 Polaroid Corporation Hollow tube method for forming an optical fiber
US4688892A (en) * 1985-03-18 1987-08-25 Laakmann Electro-Optics, Inc. Hollow waveguides having disparate dielectric overcoatings
GB2189900B (en) * 1986-04-22 1989-11-29 Plessey Co Plc Optical fibre devices
US4815079A (en) * 1987-12-17 1989-03-21 Polaroid Corporation Optical fiber lasers and amplifiers
US5121460A (en) * 1991-01-31 1992-06-09 The Charles Stark Draper Lab., Inc. High-power mode-selective optical fiber laser
FR2683053B1 (fr) * 1991-10-29 1994-10-07 Thomson Csf Fibre optique et procede de fabrication.
US5259059A (en) * 1992-12-10 1993-11-02 Xerox Corporation Optical fibers with built-in alignment features
US5307436A (en) * 1993-04-20 1994-04-26 Corning Incorporated Partially detached core optical waveguide
SE502778C2 (sv) * 1993-10-14 1996-01-08 Ericsson Telefon Ab L M Optisk fiber för användning som givare jämte förfarande för framställning av en optisk fiber för användning som givare
US5418880A (en) * 1994-07-29 1995-05-23 Polaroid Corporation High-power optical fiber amplifier or laser device
US5533163A (en) * 1994-07-29 1996-07-02 Polaroid Corporation Optical fiber structure for efficient use of pump power
US5615295A (en) * 1994-09-14 1997-03-25 The Furukawa Electric Co., Ltd. Optical fiber and process of producing the same
DE19535526C1 (de) * 1995-09-25 1997-04-03 Hannover Laser Zentrum Doppelkern-Faserlaser
JP3298799B2 (ja) * 1995-11-22 2002-07-08 ルーセント テクノロジーズ インコーポレイテッド クラッディングポンプファイバとその製造方法
US5822489A (en) * 1996-12-31 1998-10-13 Lucent Technologies, Inc. Low refractive index photo-curable composition for waveguide applications
US5756209A (en) * 1996-12-31 1998-05-26 Lucent Technologies Inc. Photocurable low refractive index coatings
US6115526A (en) * 1997-03-27 2000-09-05 Brown University Research Foundation Ultra high numerical aperture high power optical fiber laser
US5907652A (en) * 1997-09-11 1999-05-25 Lucent Technologies Inc. Article comprising an air-clad optical fiber
US5949941A (en) * 1997-11-21 1999-09-07 Lucent Technologies Inc. Cladding-pumped fiber structures
US6411762B1 (en) * 1997-12-09 2002-06-25 Scientific-Atlanta, Inc. Optical fiber with irregularities at cladding boundary
US6031850A (en) * 1997-12-22 2000-02-29 Pc Photonics Corporation Clad pumped, eye-safe and multi-core phase-locked fiber lasers
US6157763A (en) * 1998-01-28 2000-12-05 Sdl, Inc. Double-clad optical fiber with improved inner cladding geometry
US6101199A (en) * 1999-01-05 2000-08-08 Apollo Instruments, Inc. High power high efficiency cladding pumping fiber laser
US6483973B1 (en) * 1999-04-09 2002-11-19 Fitel Usa Corp. Cladding member for optical fibers and optical fibers formed with the cladding member
US6097870A (en) * 1999-05-17 2000-08-01 Lucent Technologies Inc. Article utilizing optical waveguides with anomalous dispersion at vis-nir wavelenghts
US6415079B1 (en) * 2000-03-03 2002-07-02 Fitel Usa Corp. Optical fiber gratings having internal gap cladding for reduced short wavelength cladding mode loss
US6445862B1 (en) * 2000-06-20 2002-09-03 Corning Incorporated Dispersion compensating photonic crystal fiber
US6477307B1 (en) * 2000-10-23 2002-11-05 Nufern Cladding-pumped optical fiber and methods for fabricating
US6512867B2 (en) * 2000-11-29 2003-01-28 Trw Inc. Parallel side-pumping of dual-clad fiber array using fused, layered structure
JP2004521378A (ja) * 2001-01-25 2004-07-15 オムニガイド コミュニケーションズ インコーポレイテッド 大きいコア半径を有する低損失フォトニック結晶導波路
US6516124B2 (en) * 2001-03-02 2003-02-04 Optical Power Systems Incorporated Fiber for enhanced energy absorption
US6831934B2 (en) * 2001-05-29 2004-12-14 Apollo Instruments, Inc. Cladding pumped fiber laser
US6625363B2 (en) * 2001-06-06 2003-09-23 Nufern Cladding-pumped optical fiber
US6687445B2 (en) * 2001-06-25 2004-02-03 Nufern Double-clad optical fiber for lasers and amplifiers
WO2003010578A1 (en) 2001-07-12 2003-02-06 Ocg Technology Licensing, Llc Optical fiber
US7590323B2 (en) * 2001-08-30 2009-09-15 Crystal Fibre A/S Optical fibre with high numerical aperture, method of its production, and use thereof
US6480659B1 (en) * 2001-11-14 2002-11-12 Rayteq Photonic Solutions Ltd. Optic fiber structure for efficient use of optical pump energy in three-level rare-earth doped fiber laser
US6768851B2 (en) * 2002-03-13 2004-07-27 City University Of Hong Kong Optical fiber for ultra-high capacity transmission

Also Published As

Publication number Publication date
US7359604B2 (en) 2008-04-15
WO2003010578A1 (en) 2003-02-06
DE60222440D1 (de) 2007-10-25
US20040208464A1 (en) 2004-10-21
EP1421419A4 (de) 2005-08-24
US20060291788A1 (en) 2006-12-28
WO2003010578A9 (en) 2003-09-04
US6917742B2 (en) 2005-07-12
EP1421419A1 (de) 2004-05-26
DE60222440T2 (de) 2008-06-19
EP1421419B1 (de) 2007-09-12

Similar Documents

Publication Publication Date Title
DE60222440D1 (de) Optische faser
EP2292566A3 (de) Seltenerddotierte und großflächige Lichtwellenleiter für Faserlaser und Verstärker
ATE353142T1 (de) Glasfaser mit grosser effektiver fläche
TW200628863A (en) Optical waveguide devices and method of making the same
ATE250288T1 (de) Optische faser und faseroptische vorrichtung
WO2005082801A3 (en) Optical fiber and method for making such fiber
DE60025823D1 (de) Optische wellenleiterfaser mit niedrigem wasserpeak und verfahren zu ihrer herstellung
EP1043816A3 (de) Faseroptischer Mantel und daraus hergestellte optische Fasern
ATE467142T1 (de) Monomode optische faser mit niedrigem krümmungsverlust
ATE352050T1 (de) Optische fasern mit hoher numerischer apertur
EP1237019A3 (de) Optisches Schaltungssubstrat, zugehöriges Herstellungsverfahren und mehrschichtiges optisches Schaltungssubstrat
GB2397135A (en) Novel photonic bandgap fibre and use thereof
ATE414287T1 (de) Photonische optische faser mit doppeltem mantel
FI20045308A7 (fi) Optinen kuituvahvistin, jossa on vahvistuksen muotoerottelu
ATE408164T1 (de) Optische einrichtung in einer faseroptischen array-block-einbettung
TW200407573A (en) Daul-band bend tolerant optical waveguide
CA2184452A1 (en) Optical waveguide, optical module and optical system using the same
ATE316252T1 (de) Dispersionsverschobene optische faser mit dreifachem mantel
MY118851A (en) Light-induced refractive index changes in low temperature glasses
DE60201680D1 (de) Optische faser
FI20010556A7 (fi) Valokuitu ja menetelmä valokuituaihion valmistamiseksi
AU2001264412A1 (en) Single mode optical fibre, and method for the manufacture of a single mode optical fibre
ATE301875T1 (de) Verstärkende optische faser mit ringförmiger anordung der dotierung und verstärker mit einer derartigen faser
KR920008511A (ko) 광 기능성유리, 광파이버, 증폭기 및 레이저
ITTO940186A0 (it) Procedimento per la realizzazione di fibre ottiche monomodo in vetro, flururato.

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties