DK2260549T3 - Højeffektlaserfibersystem - Google Patents
Højeffektlaserfibersystem Download PDFInfo
- Publication number
- DK2260549T3 DK2260549T3 DK09724063.4T DK09724063T DK2260549T3 DK 2260549 T3 DK2260549 T3 DK 2260549T3 DK 09724063 T DK09724063 T DK 09724063T DK 2260549 T3 DK2260549 T3 DK 2260549T3
- Authority
- DK
- Denmark
- Prior art keywords
- fiber
- fibre
- core
- fibers
- fiber system
- Prior art date
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
- H01S3/06745—Tapering of the fibre, core or active region
-
- 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)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Lasers (AREA)
- Optical Communication System (AREA)
Claims (15)
- HØJEFFEKTLASERFIBERSYSTEM1. Effektlaserfibersystem, der på en signalbølgelængde (λ) udsender og omfatter flere enkeltmodusfibre, der er fordelt således, at der frembringes en moduskobling mellem fibrene, hvor én af fibrene er en fremkommende fiber for emissionslaserstrålens signalbølgelængde, hvor hver af fibrene mindst omfatter en ydre kappe og en kerne, hvor hver af fibrene i kernen har en radial indeksgradient og mindst over en del af dens længde omfatter et geometristykke med en kemefiberradius med aftagende gradient mellem en såkaldt indgangsende til stykket og en såkaldt udgangsende af stykket, hvor parametrene for kemeradius og indeksvariation mellem kappen og fiberen ved indgangsenden er således, at den normaliserede frekvens V, der er defineret ved signalbølgelængden, er mindre end den normaliserede grænsefrekvens Vc, hvorfra fiberen har karakter af enkeltmodus.
- 2. Effektlaserfibersystem ifølge krav 1, kendetegnet ved, at gradientindekset er af den parabolske type.
- 3. Effektlaserfibersystem ifølge krav 1, kendetegnet ved, at gradientindekset er af den triangulære type.
- 4. Effektlaserfibersystem ifølge krav 1, kendetegnet ved, at hver af fibrene omfatter et konisk geometrisk stykke, en første kapperadius (ri) og en anden kemeradius (r2), hvor den første og den anden radius henholdsvis defineres ved følgende ligninger: ri (z)=r1c(l-m1z) r2 (z) = r2c (1- m2z)
- 5. Effektlaserfibersystem ifølge et af kravene 1 til 4, kendetegnet ved, at fibrene er fordelt ifølge en matrixgeometri i et plan vinkelret på fibrenes længde.
- 6. Effektlaserfibersystem ifølge et af kravene 1 til 4, kendetegnet ved, at fibrene er cirkelformet fordelt omkring en central fiber.
- 7. Effektlaserfibersystem ifølge et af de foregående krav kendetegnet ved, at det omfatter én præform, der omfatter en enhed af enkeltstående kapper og fiberkemer.
- 8. Effektlaserfibersystem ifølge et af de foregående krav, kendetegnet ved, at det omfatter: et fiberforbindelsesled, der er beregnet til at modtage pumpeffekt fra laserdioder; en enhed af fibre, der er radialt koblet og trukne for at optimere koblingen; en central fiber, ved hvilken laserstrålens signalbølgelængde fremkommer.
- 9. Effektlaserfibersystem ifølge krav 8, kendetegnet ved, at den fremkommende fiber omfatter en spejlfunktion.
- 10. Effektlaserfibersystem ifølge krav 9, kendetegnet ved, at den fremkommende fiber omfatter en Bragg-reflektor.
- 11. Effektlaserfibersystem ifølge et af de foregående krav kendetegnet ved, at det omfatter midler af axicon-typen, der er koblet ved enderne af fibrene modsat dem, der omfatter de koniske stykker.
- 12. Effektlaserfibersystem ifølge et af de foregående krav kendetegnet ved, at det mindst omfatter en fiber med en silicakappe.
- 13. Effektlaserfibersystem ifølge et af de foregående krav kendetegnet ved, at det mindst omfatter en fiber med en fiberkeme, der omfatter silica doteret med Ge02.
- 14. Effektlaserfibersystem ifølge krav 13, kendetegnet ved, at fiberkemen omfatter perifere lag med variable satser af Ge02 for således at sikre en radial indeksgradient inde i kernen.
- 15. Effektlaserfibersystem ifølge et af de foregående krav kendetegnet ved, at det mindst omfatter en fiber med en siliciumfiberkeme doteret med sjældne jordioner.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0801714A FR2929456B1 (fr) | 2008-03-28 | 2008-03-28 | Systeme a fibre laser de forte puissance. |
PCT/EP2009/053648 WO2009118404A2 (fr) | 2008-03-28 | 2009-03-27 | Systeme a fibre laser de forte puissance |
Publications (1)
Publication Number | Publication Date |
---|---|
DK2260549T3 true DK2260549T3 (da) | 2017-12-11 |
Family
ID=40291027
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK09724063.4T DK2260549T3 (da) | 2008-03-28 | 2009-03-27 | Højeffektlaserfibersystem |
Country Status (8)
Country | Link |
---|---|
US (1) | US10014647B2 (da) |
EP (1) | EP2260549B1 (da) |
CA (1) | CA2719900C (da) |
DK (1) | DK2260549T3 (da) |
ES (1) | ES2649837T3 (da) |
FR (1) | FR2929456B1 (da) |
NO (1) | NO2260549T3 (da) |
WO (1) | WO2009118404A2 (da) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009043964A1 (en) * | 2007-10-03 | 2009-04-09 | Optoelectronics Research Centre, Tampere University Of Technology | Active optical fiber and method for fabricating an active optical fiber |
WO2011025959A1 (en) | 2009-08-27 | 2011-03-03 | The Foundry Llc | Method and apparatus for force redistributon in articular joints |
EP3776759A4 (en) * | 2018-04-11 | 2021-04-21 | NEC Corporation | OPTICAL AMPLIFIER, OPTICAL COMMUNICATION SYSTEM AND OPTICAL REINFORCEMENT METHOD |
US11320608B1 (en) | 2020-09-17 | 2022-05-03 | Waymo Llc | Metal coated spike array |
US11307144B1 (en) | 2020-09-17 | 2022-04-19 | Waymo Llc | Evanescent wave based optical profiler array |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4163654A (en) * | 1978-04-21 | 1979-08-07 | Exxon Research & Engineering Co. | Method of manufacturing graded index optical fibers |
US5333218A (en) * | 1993-05-24 | 1994-07-26 | General Electric Company | Optical fiber tapered output end preparation for improved high power laser/fiber delivered beam quality |
US5379149A (en) * | 1993-08-06 | 1995-01-03 | Kutger, The State University Of New Jersey | Glass compositions having low energy phonon spectra and light sources fabricated therefrom |
JPH10125988A (ja) * | 1996-10-16 | 1998-05-15 | Nippon Telegr & Teleph Corp <Ntt> | 光ファイバ一括増幅器 |
US6031850A (en) * | 1997-12-22 | 2000-02-29 | Pc Photonics Corporation | Clad pumped, eye-safe and multi-core phase-locked fiber lasers |
US5940567A (en) * | 1998-02-20 | 1999-08-17 | Photon-X, Inc. | Optical fibers having an inner core and an outer core |
US6882664B2 (en) * | 2002-02-28 | 2005-04-19 | Lucent Technologies Inc. | Laser with internally coupled pump source |
JP2006145757A (ja) * | 2004-11-18 | 2006-06-08 | Fujitsu Ltd | 分散補償器 |
FI20050214A0 (fi) * | 2005-02-23 | 2005-02-23 | Corelase Oy | Uudet kuituoptiset laitteet |
US7391561B2 (en) * | 2005-07-29 | 2008-06-24 | Aculight Corporation | Fiber- or rod-based optical source featuring a large-core, rare-earth-doped photonic-crystal device for generation of high-power pulsed radiation and method |
FR2890958B1 (fr) * | 2005-09-16 | 2010-09-17 | Cit Alcatel | Preforme destinee a la fabrication d'une fibre optique comprenant des nanoparticules et procede de fabrication d'une fibre optique mettant en oeuvre une telle preforme |
US7764854B2 (en) * | 2005-12-27 | 2010-07-27 | Ofs Fitel Llc | Optical fiber with specialized index profile to compensate for bend-induced distortions |
US7532792B2 (en) * | 2006-08-28 | 2009-05-12 | Crystal Fibre A/S | Optical coupler, a method of its fabrication and use |
-
2008
- 2008-03-28 FR FR0801714A patent/FR2929456B1/fr not_active Expired - Fee Related
-
2009
- 2009-03-27 DK DK09724063.4T patent/DK2260549T3/da active
- 2009-03-27 ES ES09724063.4T patent/ES2649837T3/es active Active
- 2009-03-27 US US12/935,084 patent/US10014647B2/en active Active
- 2009-03-27 NO NO09724063A patent/NO2260549T3/no unknown
- 2009-03-27 CA CA2719900A patent/CA2719900C/en active Active
- 2009-03-27 WO PCT/EP2009/053648 patent/WO2009118404A2/fr active Application Filing
- 2009-03-27 EP EP09724063.4A patent/EP2260549B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
CA2719900C (en) | 2016-09-20 |
WO2009118404A3 (fr) | 2009-12-30 |
US10014647B2 (en) | 2018-07-03 |
CA2719900A1 (en) | 2009-10-01 |
FR2929456B1 (fr) | 2016-12-09 |
NO2260549T3 (da) | 2018-02-03 |
ES2649837T3 (es) | 2018-01-15 |
US20110235658A1 (en) | 2011-09-29 |
EP2260549B1 (fr) | 2017-09-06 |
WO2009118404A2 (fr) | 2009-10-01 |
EP2260549A2 (fr) | 2010-12-15 |
FR2929456A1 (fr) | 2009-10-02 |
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