JP5429724B2 - スペクトル幅狭窄化方法、および、光学素子ならびに光源装置 - Google Patents
スペクトル幅狭窄化方法、および、光学素子ならびに光源装置 Download PDFInfo
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- G—PHYSICS
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves
- G02F1/395—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves in optical waveguides
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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
- G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
- G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
- G02B6/02247—Dispersion varying along the longitudinal direction, e.g. dispersion managed fibre
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/3511—Self-focusing or self-trapping of light; Light-induced birefringence; Induced optical Kerr-effect
- G02F1/3513—Soliton propagation
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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
- H01S3/05—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
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Description
最初に、本発明のスペクトル幅狭窄化方法についてその原理と内容とを説明する。
次に、本発明のスペクトル幅狭窄化方法に用いられる光導波手段、すなわち、本発明の光学素子の具体例について実施形態として説明する。
次に、本発明の光源装置について具体例を挙げて説明する。
Claims (9)
- 入射パルス光に対する二次分散値(β2)の平均値が負であり、かつ、前記二次分散値(β2)の絶対値が、前記入射パルス光の伝搬方向にその増加分が漸減しながら増加する分散特性を備えた光導波手段を用いて、前記光導波手段の内部で前記入射パルス光にソリトン効果を生じさせることにより、前記入射パルス光のスペクトル幅を狭窄して出力パルス光とすることを特徴とするスペクトル幅狭窄化方法。
- 前記光導波手段として光ファイバを用いる請求項1に記載のスペクトル幅狭窄化方法。
- 前記光導波手段が、前記二次分散値(β2)の異なる光ファイバを複数本接続して形成されている請求項2に記載のスペクトル幅狭窄化方法。
- 前記光導波手段が、互いに異なる前記二次分散値(β2)を有する複数本の光ファイバを、それぞれの長さの割合が異なるように組み合わせて順次接続することで、前記二次分散値(β2)の絶対値が、前記入射パルス光の伝搬方向にその増加分が漸減しながら増加する分散特性を有するように構成されている請求項3に記載のスペクトル幅狭窄化方法。
- 入射パルス光に対する二次分散値(β2)の平均値が負であり、かつ、前記二次分散値(β2)の絶対値が、前記入射パルス光の伝搬方向にその増加分が漸減しながら増加する分散特性を備え、
前記入射パルス光にソリトン効果を生じさせてそのスペクトル幅を狭窄して出力パルス光とすることを特徴とする光学素子。 - 前記二次分散値(β2)の異なる複数本の光ファイバを、前記入射パルス光の伝搬方向に接続して形成されている請求項5に記載の光学素子。
- 互いに異なる前記二次分散値(β2)を有する複数本の光ファイバを、それぞれの長さの割合が異なるように組み合わせて順次接続することで、前記二次分散値(β2)の絶対値が、前記入射パルス光の伝搬方向にその増加分が漸減しながら増加する分散特性を有するように構成されている請求項6に記載の光学素子。
- パルス光を生成するパルス光生成装置と、
前記生成されたパルス光の強度を調整するアンプと、
請求項5〜7のいずれか1項に記載の光学素子とを備え、
スペクトル幅が狭窄化されたパルス光を照射することを特徴とする光源装置。 - 前記パルス光生成装置が、短パルスレーザー光源と、光強度調整器と、波長可変光ファイバとを有し、前記光強度調整器により前記波長可変光ファイバに入射される短パルスレーザー光の強度を調整することで、生成されるパルス光の波長を変更できる波長可変光源である請求項8に記載の光源装置。
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PCT/JP2011/060162 WO2011136220A1 (ja) | 2010-04-28 | 2011-04-26 | スペクトル幅狭窄化方法、および、光学素子ならびに光源装置 |
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JP5807859B2 (ja) * | 2011-04-27 | 2015-11-10 | 国立大学法人名古屋大学 | スペクトル計測装置およびスペクトル計測方法 |
WO2015174819A2 (en) * | 2014-05-16 | 2015-11-19 | Mimos Berhad | Method for producing narrow spectral linewidths |
JP2018004722A (ja) * | 2016-06-28 | 2018-01-11 | 国立大学法人宇都宮大学 | 広帯域レーザー出力装置 |
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JP2000105394A (ja) * | 1998-09-29 | 2000-04-11 | Japan Science & Technology Corp | 波長可変短パルス光発生装置及び方法 |
JP2006171677A (ja) * | 2004-11-19 | 2006-06-29 | Japan Science & Technology Agency | 光パルス圧縮装置、光パルス発生装置及び光パルス圧縮方法 |
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US7151880B2 (en) * | 2000-12-28 | 2006-12-19 | Prysmian Cavi E Sistemi Energia S.R.L. | Dispersion-managed optical soliton transmission system |
WO2004049054A1 (ja) * | 2002-11-21 | 2004-06-10 | The Furukawa Electric Co., Ltd. | 光伝送システムにおける光源、波形整形器、光パルス列発生装置、及び 光再生システム |
US7869680B2 (en) * | 2004-07-02 | 2011-01-11 | Olambda, Inc. | Nonlinearity compensation in a fiber optic communications system |
JP5023575B2 (ja) * | 2006-06-23 | 2012-09-12 | 株式会社日立製作所 | アンチスクイズド光生成器 |
JP5729895B2 (ja) * | 2008-01-29 | 2015-06-03 | キヤノン株式会社 | 光パルス圧縮器 |
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JP2000105394A (ja) * | 1998-09-29 | 2000-04-11 | Japan Science & Technology Corp | 波長可変短パルス光発生装置及び方法 |
JP2006171677A (ja) * | 2004-11-19 | 2006-06-29 | Japan Science & Technology Agency | 光パルス圧縮装置、光パルス発生装置及び光パルス圧縮方法 |
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EP2565708A1 (en) | 2013-03-06 |
JPWO2011136220A1 (ja) | 2013-07-22 |
US20130088770A1 (en) | 2013-04-11 |
EP2565708A4 (en) | 2013-03-06 |
WO2011136220A1 (ja) | 2011-11-03 |
EP2565708B1 (en) | 2016-05-25 |
US9075284B2 (en) | 2015-07-07 |
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