JP5175202B2 - 光ファイバーレーザー - Google Patents
光ファイバーレーザー Download PDFInfo
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- JP5175202B2 JP5175202B2 JP2008535108A JP2008535108A JP5175202B2 JP 5175202 B2 JP5175202 B2 JP 5175202B2 JP 2008535108 A JP2008535108 A JP 2008535108A JP 2008535108 A JP2008535108 A JP 2008535108A JP 5175202 B2 JP5175202 B2 JP 5175202B2
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- power amplifier
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- 239000000835 fiber Substances 0.000 title claims description 115
- 238000005253 cladding Methods 0.000 claims description 68
- 239000013307 optical fiber Substances 0.000 claims description 35
- 238000002156 mixing Methods 0.000 claims description 27
- 238000005452 bending Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 9
- 238000005086 pumping Methods 0.000 description 8
- 230000004927 fusion Effects 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 229910052761 rare earth metal Inorganic materials 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002910 rare earth metals Chemical group 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
- H01S3/06758—Tandem amplifiers
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- 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
- G02B6/02295—Microstructured optical fibre
- G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
- G02B6/02319—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by core or core-cladding interface features
- G02B6/02333—Core having higher refractive index than cladding, e.g. solid core, effective index guiding
-
- 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
- G02B6/02295—Microstructured optical fibre
- G02B6/02314—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
- G02B6/02342—Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by cladding features, i.e. light confining region
- G02B6/02366—Single ring of structures, e.g. "air clad"
-
- 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
-
- 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
- H01S3/094049—Guiding of the pump light
- H01S3/094053—Fibre coupled pump, e.g. delivering pump light using a fibre or a fibre bundle
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Description
Claims (12)
- シングルモードもしくは低次モードクラッドポンプファイバーレーザーオシレータあるいはプリアンプリファイアと、マルチ横モードを誘導するよう適合されたクラッドポンプファイバーレーザーパワー増幅器とを具備し、前記オシレータもしくはプリアンプリファイアからの出力が、モード混合手段を介して、前記パワー増幅器に供給される、ファイバーレーザーであって、
前記パワー増幅器は、マルチプル横モードのレーザーエネルギーを出力し、
前記モード混合手段が、モード混合ファイバーとクラッドモードストリッパーを有する、ファイバーレーザー。 - 前記クラッドモードストリッパーが、前記モード混合ファイバーと、同軸上に、隣接して取り付けられたキャピラリーを具備し、全内部反射を使用して、前記ファイバーから離れた位置に前記ストリッパー内の放出光を方向変更させるよう適合された、前記シングルもしくは低次モードオシレータあるいはプリアンプリファイアに近接した端面を有する、請求項1に記載のファイバーレーザー。
- 前記オシレータもしくはプリアンプリファイアが、コアと内部クラッドと外部クラッドとを有し、
前記パワー増幅器が、レーザー信号用の導波管を形成するコアおよび内部クラッドとポンプエネルギー用の導波管を形成する外部クラッドとを有し、
前記パワー増幅器の前記コアおよび内部クラッドの径がそれぞれ、前記オシレータもしくはプリアンプリファイアの前記コアおよび内部クラッドの径よりも大きい、請求項1又は2に記載のファイバーレーザー。 - 前記モード混合手段が、モード混合を誘発するため、その長さ沿いに少なくともひとつの巻線部もしくは曲げ部を有するファイバーである、請求項1〜3のいずれか一つに記載のファイバーレーザー。
- 前記オシレータもしくはプリアンプリファイアが、コアと、それぞれが前記信号用とポンプ用の個別の導波管を形成する内部クラッドおよび外部クラッドとを具備し、前記内部クラッドが、前記ポンプモードの混合を促進するための非円形断面を有する、請求項1〜4のいずれか一つに記載のファイバーレーザー。
- 融着ファイバーポンプコンバイナーが、マルチモードポンプ光を活性光ファイバーの内部クラッドに導入するのに使用される、請求項5に記載のファイバーレーザー。
- ポンプエネルギーが、順方向、逆方向もしくは順方向と逆方向の両方向に導入される、請求項1〜6のいずれか一つに記載のファイバーレーザー。
- 前記パワー増幅器内の前記光ファイバーが、ポンプモードの混合を促進するための非円形断面を有する内部クラッドを有する、請求項1〜7のいずれか一つに記載のファイバーレーザー。
- マルチモードコアフィードスルーを有する融着ファイバーポンプコンバイナーが、ポンプ光および信号光を多重化および分波するのに使用される、請求項1〜8のいずれか一つに記載のファイバーレーザー。
- 前記パワー増幅器が、前記パワー増幅器のコア径よりも大きいコア径の光ファイバーを有し、前記パワー増幅器の出力は、光ファイバーを通って出力される、請求項1〜9のいずれか一つに記載のファイバーレーザー。
- 前記オシレータが、ポンプレーザーダイオードを直接変調することによって変調される出力を有する、請求項1〜10のいずれか一つに記載のファイバーレーザー。
- 前記パワー増幅器の前段にある、一つもしくは複数のプリアンプリファイアチェーンでパルスレーザーが増幅される、請求項1〜11のいずれか一つに記載のファイバーレーザー。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0520853.3 | 2005-10-14 | ||
GBGB0520853.3A GB0520853D0 (en) | 2005-10-14 | 2005-10-14 | Optical fibre laser |
PCT/GB2006/050328 WO2007042845A2 (en) | 2005-10-14 | 2006-10-16 | Optical fibre laser |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009512208A JP2009512208A (ja) | 2009-03-19 |
JP5175202B2 true JP5175202B2 (ja) | 2013-04-03 |
Family
ID=35451703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008535108A Active JP5175202B2 (ja) | 2005-10-14 | 2006-10-16 | 光ファイバーレーザー |
Country Status (6)
Country | Link |
---|---|
US (1) | US7649914B2 (ja) |
EP (1) | EP1935068B1 (ja) |
JP (1) | JP5175202B2 (ja) |
CN (1) | CN101288211B (ja) |
GB (1) | GB0520853D0 (ja) |
WO (1) | WO2007042845A2 (ja) |
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WO2001091252A2 (en) | 2000-05-19 | 2001-11-29 | Cutting Edge Optronics, Inc. | High-power compact fiber laser |
US6625354B2 (en) * | 2000-12-19 | 2003-09-23 | The Boeing Company | Fiber amplifier having a prism for efficient coupling of pump energy |
GB0031463D0 (en) | 2000-12-21 | 2001-02-07 | Univ Southampton | Fibre laser |
JP2002237637A (ja) * | 2001-02-08 | 2002-08-23 | Toshiba Corp | ファイバレーザ装置 |
DE602004031164D1 (de) * | 2003-02-07 | 2011-03-03 | Spi Lasers Uk Ltd | Vorrichtung zur Abgabe optischer Strahlung |
-
2005
- 2005-10-14 GB GBGB0520853.3A patent/GB0520853D0/en not_active Ceased
-
2006
- 2006-10-16 EP EP06794985.9A patent/EP1935068B1/en active Active
- 2006-10-16 JP JP2008535108A patent/JP5175202B2/ja active Active
- 2006-10-16 CN CN2006800378771A patent/CN101288211B/zh active Active
- 2006-10-16 WO PCT/GB2006/050328 patent/WO2007042845A2/en active Application Filing
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2008
- 2008-04-01 US US12/060,444 patent/US7649914B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN101288211B (zh) | 2011-07-13 |
CN101288211A (zh) | 2008-10-15 |
GB0520853D0 (en) | 2005-11-23 |
EP1935068B1 (en) | 2014-03-19 |
JP2009512208A (ja) | 2009-03-19 |
US7649914B2 (en) | 2010-01-19 |
WO2007042845A2 (en) | 2007-04-19 |
EP1935068A2 (en) | 2008-06-25 |
WO2007042845A3 (en) | 2008-04-10 |
US20080219299A1 (en) | 2008-09-11 |
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