JP5899084B2 - 偏光保持モードロックファイバレーザ発振器 - Google Patents
偏光保持モードロックファイバレーザ発振器 Download PDFInfo
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- JP5899084B2 JP5899084B2 JP2012181613A JP2012181613A JP5899084B2 JP 5899084 B2 JP5899084 B2 JP 5899084B2 JP 2012181613 A JP2012181613 A JP 2012181613A JP 2012181613 A JP2012181613 A JP 2012181613A JP 5899084 B2 JP5899084 B2 JP 5899084B2
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- fiber
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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
- H01S3/06708—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
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06712—Polarising fibre; Polariser
-
- 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
- H01S3/094019—Side pumped fibre, whereby pump light is coupled laterally into the fibre via an optical component like a prism, or a grating, or via V-groove coupling
-
- 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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
- H01S3/1112—Passive mode locking
- H01S3/1115—Passive mode locking using intracavity saturable absorbers
- H01S3/1118—Semiconductor saturable absorbers, e.g. semiconductor saturable absorber mirrors [SESAMs]; Solid-state saturable absorbers, e.g. carbon nanotube [CNT] based
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Description
本発明は、単一偏光光ファイバ、すなわち、強い偏光保持あるいは偏光保持特性を備えている光ファイバと、希土類をドープした同じものの変形で形成されるファイバレーザとに関する。
最近の数年間における先進光学技術の開発は、通常の固体レーザの一般的な代替としてのファイバレーザの使用を大いに推奨した。固体レーザに比べて,ファイバレーザは,性能の妥協なしに集積化と小型化のための特殊なポテンシャルを提供し,以前は固体レーザに近づけなかった実世界の応用に複雑なレーザ処理機能を用いることを可能にする。これらの進歩における最も重要な面の一つは,2重クラッドファイバ増幅器デザインを用いることであり,このデザインは,広範なパワー拡大可能ダイオードレーザでファイバレーザをポンピングすることを可能にし、出力パワーが連続波動作で100W域までなるファイバレーザを提供する(V.Dominic他’110Wファイバレーザ’,Conf. on Lasers and Electro-Optics, CLEO, 1999, paper,CPD11)。
Claims (13)
- 偏光保持モードロックファイバレーザ発振器であって、
シングルモードの光を伝搬させる偏光保持増幅器ファイバと、
前記偏光保持増幅器ファイバ、モードロック用の可飽和吸収体を含む振幅変調機構、共振器内光学フィルタ及び出力結合器を有する共振器と
を含み、
前記偏光保持増幅器ファイバは、
Yb又はNdを含むドープされたファイバ利得媒質を有するファイバコアと、
前記ファイバコアを囲む第1クラッドと
を含み、
前記ファイバレーザ発振器は、前記利得媒質を光学的にポンプするポンプダイオードを含むポンプ光源を含み、
前記偏光保持増幅器ファイバは正分散を示すべく動作可能に配列され、
前記偏光保持増幅器ファイバは、波長を横軸として表したときに前記共振器内光学フィルタのバンド幅よりも広いバンド幅を有する放物線型パルスを生成することができ、
前記偏光保持モードロックファイバレーザ発振器は、共振器内パルスに自己位相変調を与えて前記共振器内パルスのバンド幅を広げ、
前記出力結合器から出る出力パルスのバンド幅が前記共振器内光学フィルタのバンド幅よりも広くなることにより前記放物線型パルスを生成することができる偏光保持モードロックファイバレーザ発振器。 - 前記放物線型パルスは、線形にチャープする請求項1記載の偏光保持ファイバレーザ発振器。
- 前記可飽和吸収体は、飽和エネルギーの少なくとも2倍のパルスエネルギーを吸収するべく構成される請求項1又は2記載の偏光保持モードロックファイバレーザ発振器。
- 前記可飽和吸収体は、前記共振器内での前記放物線型パルスの最大パルス幅の5倍より短い寿命を有し、かつ、前記ファイバレーザの受動モードロックをもたらす請求項1に記載の偏光保持ファイバレーザ発振器。
- 前記共振器はリングレーザ共振器として構成される請求項1〜4のいずれか1項に記載の偏光保持ファイバレーザ発振器。
- 前記共振器はミラーを含み、かつ、ファブリ−ペローレーザ共振器として構成される請求項1〜4のいずれか1項に記載の偏光保持モードロックファイバレーザ発振器。
- 前記ファイバコアはマルチモードファイバコアである請求項1〜6のいずれか1項に記載の偏光保持ファイバレーザ発振器。
- 前記偏光保持増幅器ファイバは、
前記第1クラッドを囲む被覆と、
前記マルチモードファイバコアにシングルモードの光を伝搬させる大きさの複屈折を前記マルチモードファイバコアに生成するべく前記第1クラッド内に設けられた少なくとも1つの応力生成領域と
を更に含み、
前記少なくとも1つの応力生成領域は少なくとも1つの応力ロッド又は少なくとも1つの空気孔を含む請求項7に記載の偏光保持モードロックファイバレーザ発振器。 - 前記第1クラッドを囲む第2クラッドを、前記第1クラッドと前記被覆の間に更に含む請求項8に記載の偏光保持モードロックファイバレーザ発振器。
- 前記ファイバコアは、希土類ドープ材料でドープされたマルチモードファイバコアである請求項8又は9に記載の偏光保持モードロックファイバレーザ発振器。
- 前記シングルモードは基本モードであり、
前記応力生成領域は、前記基本モードに対して、1×10−6より大きな値の複屈折を生成する請求項8〜10のいずれか一項に記載の偏光保持モードロックファイバレーザ発振器。 - 前記ポンプ光源はダイオードレーザである請求項1〜11のいずれか1項に記載の偏光保持モードロックファイバレーザ発振器。
- 前記共振器内光学フィルタのバンド幅が1〜30nmである請求項1〜12のいずれか1項に記載の偏光保持モードロックファイバレーザ発振器。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/809248 | 2001-03-16 | ||
US09/809,248 US6954575B2 (en) | 2001-03-16 | 2001-03-16 | Single-polarization high power fiber lasers and amplifiers |
Related Parent Applications (1)
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JP2009142237A Division JP2009205174A (ja) | 2001-03-16 | 2009-06-15 | 偏光保持ファイバ、ファイバ増幅器及びファイバレーザ |
Publications (3)
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JP2012253378A JP2012253378A (ja) | 2012-12-20 |
JP2012253378A5 JP2012253378A5 (ja) | 2013-10-03 |
JP5899084B2 true JP5899084B2 (ja) | 2016-04-06 |
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ID=25200876
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Application Number | Title | Priority Date | Filing Date |
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JP2002072975A Expired - Fee Related JP4490619B2 (ja) | 2001-03-16 | 2002-03-15 | 偏光保持ファイバ、ファイバレーザ及びファイバ増幅器 |
JP2005074104A Expired - Fee Related JP4348309B2 (ja) | 2001-03-16 | 2005-03-15 | モードロックファイバレーザ |
JP2008040435A Pending JP2008158547A (ja) | 2001-03-16 | 2008-02-21 | 偏光保持ファイバ、偏光保持ファイバレーザ、受動モードロックファイバレーザ、ファイバ増幅器及び光ファイバ |
JP2009096761A Expired - Fee Related JP4994415B2 (ja) | 2001-03-16 | 2009-04-13 | 受動モードロックファイバレーザ |
JP2009142237A Pending JP2009205174A (ja) | 2001-03-16 | 2009-06-15 | 偏光保持ファイバ、ファイバ増幅器及びファイバレーザ |
JP2012181613A Expired - Fee Related JP5899084B2 (ja) | 2001-03-16 | 2012-08-20 | 偏光保持モードロックファイバレーザ発振器 |
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JP2002072975A Expired - Fee Related JP4490619B2 (ja) | 2001-03-16 | 2002-03-15 | 偏光保持ファイバ、ファイバレーザ及びファイバ増幅器 |
JP2005074104A Expired - Fee Related JP4348309B2 (ja) | 2001-03-16 | 2005-03-15 | モードロックファイバレーザ |
JP2008040435A Pending JP2008158547A (ja) | 2001-03-16 | 2008-02-21 | 偏光保持ファイバ、偏光保持ファイバレーザ、受動モードロックファイバレーザ、ファイバ増幅器及び光ファイバ |
JP2009096761A Expired - Fee Related JP4994415B2 (ja) | 2001-03-16 | 2009-04-13 | 受動モードロックファイバレーザ |
JP2009142237A Pending JP2009205174A (ja) | 2001-03-16 | 2009-06-15 | 偏光保持ファイバ、ファイバ増幅器及びファイバレーザ |
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JP (6) | JP4490619B2 (ja) |
DE (2) | DE10262414B3 (ja) |
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2008
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DE10262414B3 (de) | 2019-07-04 |
JP2009158983A (ja) | 2009-07-16 |
JP4994415B2 (ja) | 2012-08-08 |
JP2009205174A (ja) | 2009-09-10 |
JP2005203809A (ja) | 2005-07-28 |
US6954575B2 (en) | 2005-10-11 |
US20050232313A1 (en) | 2005-10-20 |
US8135048B2 (en) | 2012-03-13 |
JP4348309B2 (ja) | 2009-10-21 |
US20100260214A1 (en) | 2010-10-14 |
JP2008158547A (ja) | 2008-07-10 |
US7782910B2 (en) | 2010-08-24 |
JP4490619B2 (ja) | 2010-06-30 |
US20020172486A1 (en) | 2002-11-21 |
JP2002323636A (ja) | 2002-11-08 |
DE10211352A1 (de) | 2002-09-26 |
JP2012253378A (ja) | 2012-12-20 |
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