JP5574558B2 - モジュール式、高エネルギ、広波長可変性、超高速、ファイバ光源 - Google Patents
モジュール式、高エネルギ、広波長可変性、超高速、ファイバ光源 Download PDFInfo
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- 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
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- 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
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- 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
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
- H01S3/302—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in an optical fibre
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0057—Temporal shaping, e.g. pulse compression, frequency chirping
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- 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
- H01S3/0675—Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers
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- 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
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- H—ELECTRICITY
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- 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
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- 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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/109—Frequency multiplication, e.g. harmonic generation
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- 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
- H01S3/1616—Solid materials characterised by an active (lasing) ion rare earth thulium
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- H—ELECTRICITY
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- 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
- H01S3/1618—Solid materials characterised by an active (lasing) ion rare earth ytterbium
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Description
1.発明の分野この発明は、波長選択ができ、コンパクトで、モジュール式で、かつ効率的な高パワー超短レーザパルス光源に関し、この超短レーザパルス光源は、超高速レーザ技術の工業使用における基本的な構成要素である。
したがって、本発明の目的は、モジュール化しやすく、小型、広波長可変、高ピーク、高平均パワー、低ノイズ超高速ファイバ増幅レーザシステムを提供することである。
発明の一般化されたシステム図が、図1に示される。レーザシード光源1(シードモジュール;SM)で発生されたパルスは、パルス拡張モジュール2(PSM)に結合され、そこでパルスは、分散的に時間が拡張される。拡張されたパルスは、クラッドポンプされたYbファイバ増幅器3(増幅器モジュール、AM1)の基本モードに結合され、そこでパルスは、少なくとも10倍増幅される。最後に、パルスは、パルス圧縮器モジュール4(PCM)に結合され、そこでほぼバンド幅限界近くまで時間的に圧縮される。
【図1】本発明に関する高ピーク、高平均パワー、超短レーザパルス発生用のモジュール化したコンパクトな波長可変システムの図である。
【図2】本発明に使用するためのシードモジュール(SM)の第一実施例の図である。
【図3】本発明の第一実施例に関する与えられた入力パワーで出力される平均周波数逓倍パワーと波長の関係を示すグラフである。
【図4】本発明で使用するためのパルス圧縮器モジュール(PCM)の第一実施例の図である。
【図5】本発明で使用するためのパルス拡張器モジュール(PSM)の第一実施例の図である。
【図6】本発明で使用するためのシードモジュール(SM)の第二実施例の図である。
【図7】本発明で使用するためのシードモジュール(SM)の第三実施例の図である。
【図8】本発明で使用するためのシードモジュール(SM)の第四実施例の図である。
【図9】本発明で使用するためのシードモジュール(SM)の第五実施例の図である。
【図10】ファイバ分配モジュール(FDM)が、図1に示された本発明の実施例に付加された本発明の一実施例の図である。
【図11】本発明で使用するためのファイバ分配モジュール(FDM)の一実施例の図である。
【図12】本発明で使用するためのパルス拡張器モジュール(PSM)の第二実施例の図である。
【図13】本発明で使用するためのパルス拡張器の第三実施例の図である。
【図14】パルス採集素子と付加的増幅段が付加された本発明の一実施例の図である。
【図15】パルス採集素子のような光変調器と組み合わせてファイバ増幅器が少なくとも一つの前方パスと一つの後方パスで動作する本発明の別の実施例の図である。
【図16】光通信の面における本発明の別の実施例の図である。
【図17】電気通信用波長可変ラマン増幅器の面における本システムの別の実施例の図である。
Claims (11)
- ダイオードポンプされたNd又はYb受動モードロックファイバレーザと、可飽和吸収体と、を含み、1μm帯の波長におけるフェムト秒パルスを生成する、シード光源と、
前記ファイバレーザの出力を増幅し、非線形位相シフトを許容するように構成され、放物線状パルスを生成可能な、Ybファイバ増幅器と、
前記受動モードロックファイバと前記Ybファイバ増幅器との間に設けられた光学変調器であって、前記モードロックファイバレーザからのパルスの繰返し周期を低減し、前記Yb増幅器によって増幅された利用可能なパルスエネルギを増大させ、前記Yb増幅器による増幅のためのパルスの選択を提供するように制御可能な光学変調器とを備えたレーザシステム。
- 前記シード光源と前記ファイバ増幅器との間のパルス拡張器と、前記ファイバ増幅器の出力に光学的に結合されたパルス圧縮器とをさらに備え、前記レーザシステムはチャープパルス増幅システムとして動作する請求項1に記載のレーザシステム。
- 前記受動型モードロックファイバレーザは、多モードである、請求項1に関するレーザシステム。
- 前記受動型モードロックファイバレーザは、偏光保持である、請求項1に関するレーザシステム。
- 前記受動型モードロックファイバレーザは、単一モードで偏光保持である、請求項1に関するレーザシステム。
- 前記シード光源は、前記ファイバ増幅器で放物線状パルスの生成を誘起するパルスを発生する、請求項1に関するレーザシステム。
- 前記シード光源と前記ファイバ増幅器との間にあって、該シード光源を該ファイバ増幅器に結合し、1Km以下の長さの光ファイバをもつ結合器をさらに有する請求項6に関するレーザシステム。
- 前記ファイバ増幅器の出力に結合され、増幅されたパルスを前記Ybファイバ増幅器から受け取る光ファイバをさらに有し、該Ybファイバ増幅器及び該光ファイバは、前記パルスを時間に関して分散的に広げる一方で、自己位相変調及び利得を加える、請求項1に関するレーザシステム。
- 前記光ファイバは、ホーリファイバ、一本の数モードファイバおよび一本あるいは二本の単一モードファイバに接続された一本の数モードファイバからなる群から選択される請求項8に関するレーザシステム。
- 前記シード光源は、前記ファイバ増幅器で放物線状パルスの生成を誘起するように100psより短いパルスを発生し、さらに、前記ファイバ増幅器は、10より大きい利得をもつ、請求項1に関するレーザシステム。
- 該パルス圧縮器の分散は、該パルス圧縮器がバンド幅限界に近いパルスを出力するようなものである、請求項2に関するレーザシステム。
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US09/576,772 US6885683B1 (en) | 2000-05-23 | 2000-05-23 | Modular, high energy, widely-tunable ultrafast fiber source |
US09/576772 | 2000-05-23 |
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JP2013156607A Division JP2013239738A (ja) | 2000-05-23 | 2013-07-29 | モジュール式、高エネルギ、広波長可変性、超高速、ファイバ光源 |
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JP2002118315A JP2002118315A (ja) | 2002-04-19 |
JP2002118315A5 JP2002118315A5 (ja) | 2012-11-15 |
JP5574558B2 true JP5574558B2 (ja) | 2014-08-20 |
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JP2013156607A Pending JP2013239738A (ja) | 2000-05-23 | 2013-07-29 | モジュール式、高エネルギ、広波長可変性、超高速、ファイバ光源 |
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US8031396B2 (en) | 2011-10-04 |
US6885683B1 (en) | 2005-04-26 |
US20050163426A1 (en) | 2005-07-28 |
JP2002118315A (ja) | 2002-04-19 |
US8072678B2 (en) | 2011-12-06 |
US7167300B2 (en) | 2007-01-23 |
US7688499B2 (en) | 2010-03-30 |
JP2013239738A (ja) | 2013-11-28 |
US20170271838A9 (en) | 2017-09-21 |
US20110280262A1 (en) | 2011-11-17 |
US20070103765A1 (en) | 2007-05-10 |
US20100046067A1 (en) | 2010-02-25 |
US20140036939A1 (en) | 2014-02-06 |
US9819142B2 (en) | 2017-11-14 |
US20100046066A1 (en) | 2010-02-25 |
DE10124983B4 (de) | 2013-04-18 |
US8570646B2 (en) | 2013-10-29 |
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