JP4571947B2 - 光ファイバ増幅器 - Google Patents
光ファイバ増幅器 Download PDFInfo
- Publication number
- JP4571947B2 JP4571947B2 JP2006540615A JP2006540615A JP4571947B2 JP 4571947 B2 JP4571947 B2 JP 4571947B2 JP 2006540615 A JP2006540615 A JP 2006540615A JP 2006540615 A JP2006540615 A JP 2006540615A JP 4571947 B2 JP4571947 B2 JP 4571947B2
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- Prior art keywords
- optical fiber
- optical
- fiber
- optical amplifier
- multimode
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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
- H01S3/06704—Housings; Packages
-
- 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
-
- 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
- H01S3/094049—Guiding of the pump light
- H01S3/094053—Fibre coupled pump, e.g. delivering pump light using a fibre or a fibre bundle
-
- 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
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1608—Solid materials characterised by an active (lasing) ion rare earth erbium
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Glass Compositions (AREA)
- Amplifiers (AREA)
- Optical Communication System (AREA)
Description
θ≦λ/10w (2)
ただし、λは、伝播する波長であり、wは、マルチモード導波路の幅である。前述したタイプの中空導波路コアの導波路装置において、0.5ミリラジアンのオーダの角度の整列許容差が実現可能である。したがって、数式(2)から、この角度の整列許容差と1.5μmの放射の組み合わせにより、およそ300μmの最大ファイバコア幅が与えられる。
Claims (28)
- 少なくとも2つの増幅光ファイバセクションと、少なくとも2つの増幅光ファイバセクションに光ポンピングを行うためのポンピング手段と、少なくとも2つの増幅光ファイバセクションを使用中に直線に保持するための光ファイバ支持手段とを含む、光増幅器であって、
光ファイバ支持手段が、少なくとも2つの増幅光ファイバセクションの間で光を結合する手段をさらに含む、光増幅器。 - 光ファイバ支持手段が、少なくとも2つのチャネルを含む基板を含み、少なくとも2つの増幅光ファイバセクションそれぞれが、基板のチャネル内に配置される、請求項1に記載の光増幅器。
- 少なくとも2つのチャネルが、互いに隣接して、並行に形成されて、折り返し構成を形成する、請求項2に記載の光増幅器。
- 基板に形成されたチャネルが、長方形の断面を有する、請求項2または3に記載の光増幅器。
- 少なくとも2つの増幅光ファイバセクションの間で光を結合する手段が、前記基板に形成された1つまたは複数の中空コア光導波路を含む、請求項2から4のいずれか一項に記載の光増幅器。
- 反射コーティングが、1つまたは複数の中空コア光導波路の内表面上に施される、請求項5に記載の光増幅器。
- 基板が、光学構成部品を受けるように構成された少なくとも1つの整列スロットをさらに含む、請求項2から6のいずれか一項に記載の光増幅器。
- レンズが、少なくとも1つの整列スロットの中に保持される、請求項7に記載の光増幅器。
- 基板が、少なくとも1つの光ファイバ終端取り付け手段をさらに含む、請求項2から8のいずれか一項に記載の光増幅器。
- 基板が、半導体材料を含む、請求項2から9のいずれか一項に記載の光増幅器。
- チャネルが、深堀り反応性イオンエッチング(DRIE)を使用して基板に形成される、請求項2から10のいずれか一項に記載の光増幅器。
- ポンピング手段が、直列の各増幅光ファイバセクションを通して送られるポンプビームを供給する、請求項1から11のいずれかに記載の光増幅器。
- ポンピング手段が、各増幅光ファイバセクションに別々に送られる複数のポンプビームを供給する、請求項1から11のいずれか一項に記載の光増幅器。
- 増幅光ファイバの少なくとも1つのセクションのコア径が、50μmより大きい、請求項1から13のいずれかに記載の光増幅器。
- 少なくとも1つの増幅光ファイバセクションが、マルチモード光ファイバである、請求項1から14のいずれかに記載の光増幅器。
- 少なくとも1つの増幅光ファイバセクションが、単一モード光ファイバである、請求項1から15のいずれかに記載の光増幅器。
- 少なくとも1つの増幅光ファイバセクションのコアが、希土類金属ドーパントを含む、請求項1から16のいずれかに記載の光増幅器。
- 増幅光ファイバセクションに入力ビームを結合するためのビーム入力手段が備えられる、請求項1から17のいずれかに記載の光増幅器。
- ビーム入力手段が、少なくとも1つのレンズを含む、請求項18に記載の光増幅器。
- ビーム入力手段は、入力ビームが、前記増幅光ファイバセクション内で基本伝播モードを主に励起するように構成される、請求項18から19のいずれか一項に記載の光増幅器。
- ビーム入力手段が、単一モード光ファイバから入力ビームを受け取るように構成される、請求項18から20のいずれか一項に記載の光増幅器。
- 増幅光ファイバセクションからの増幅されたビームを、出力単一モード光ファイバに結合するビーム出力手段が備えられる、請求項1から21のいずれかに記載の光増幅器。
- ポンピング手段が、少なくとも1つのレーザを含む、請求項1から22のいずれかに記載の光増幅器。
- ポンピング手段が、少なくとも1つのレーザの出力に光結合された少なくとも1つのマルチモード光ファイバを含み、前記マルチモード光ファイバが、増幅光ファイバセクションにも光結合される、請求項23に記載の光増幅器。
- 増幅光ファイバの開口数が、マルチモード光ファイバの開口数より大きい、請求項24に記載の光増幅器。
- マルチモード光ファイバが、ある倍率(m)を有するレンズ系を介して増幅光ファイバセクションに結合され、増幅光ファイバの開口数が、マルチモード光ファイバの開口数と倍率(m)の積よりも大きい、請求項24に記載の光増幅器。
- ポンピング手段が、レーザダイオードアレイを含み、前記レーザダイオードアレイが、各増幅光ファイバセクションの側部にポンプビームを照射するように構成される、請求項1から22のいずれか一項に記載の光増幅器。
- 請求項1から27のいずれかに記載の光増幅器と、2つの選択反射要素とを含み、光増幅器が、選択反射要素に関して共振レーザ空洞を形成するように構成されるレーザ装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0327661.5A GB0327661D0 (en) | 2003-11-28 | 2003-11-28 | Optical Amplifier |
PCT/GB2004/004992 WO2005055377A1 (en) | 2003-11-28 | 2004-11-26 | Optical fibre amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007512698A JP2007512698A (ja) | 2007-05-17 |
JP4571947B2 true JP4571947B2 (ja) | 2010-10-27 |
Family
ID=29797974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006540615A Active JP4571947B2 (ja) | 2003-11-28 | 2004-11-26 | 光ファイバ増幅器 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7321708B2 (ja) |
EP (1) | EP1687873B1 (ja) |
JP (1) | JP4571947B2 (ja) |
CN (1) | CN1906818B (ja) |
AT (1) | ATE393975T1 (ja) |
DE (1) | DE602004013460T2 (ja) |
GB (1) | GB0327661D0 (ja) |
WO (1) | WO2005055377A1 (ja) |
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JP5359272B2 (ja) * | 2006-07-19 | 2013-12-04 | 株式会社ニコン | 光ファイバ増幅器用カセット、光ファイバ増幅器及び光源装置 |
US7916386B2 (en) * | 2007-01-26 | 2011-03-29 | Ofs Fitel, Llc | High power optical apparatus employing large-mode-area, multimode, gain-producing optical fibers |
US9008147B2 (en) * | 2008-08-25 | 2015-04-14 | Gerald Ho Kim | Silicon-based lens support structure and cooling package with passive alignment for compact heat-generating devices |
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CN110187589A (zh) * | 2019-06-05 | 2019-08-30 | 中国科学院长春光学精密机械与物理研究所 | 一种半导体光放大器 |
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-
2003
- 2003-11-28 GB GBGB0327661.5A patent/GB0327661D0/en not_active Ceased
-
2004
- 2004-11-26 JP JP2006540615A patent/JP4571947B2/ja active Active
- 2004-11-26 DE DE602004013460T patent/DE602004013460T2/de active Active
- 2004-11-26 US US10/580,750 patent/US7321708B2/en active Active
- 2004-11-26 WO PCT/GB2004/004992 patent/WO2005055377A1/en active IP Right Grant
- 2004-11-26 EP EP04805891A patent/EP1687873B1/en active Active
- 2004-11-26 AT AT04805891T patent/ATE393975T1/de not_active IP Right Cessation
- 2004-11-26 CN CN2004800411107A patent/CN1906818B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
DE602004013460T2 (de) | 2009-06-04 |
ATE393975T1 (de) | 2008-05-15 |
GB0327661D0 (en) | 2003-12-31 |
US7321708B2 (en) | 2008-01-22 |
CN1906818A (zh) | 2007-01-31 |
WO2005055377A1 (en) | 2005-06-16 |
JP2007512698A (ja) | 2007-05-17 |
DE602004013460D1 (de) | 2008-06-12 |
US20070097491A1 (en) | 2007-05-03 |
EP1687873A1 (en) | 2006-08-09 |
EP1687873B1 (en) | 2008-04-30 |
CN1906818B (zh) | 2012-02-15 |
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