JP2017519243A - 周波数変換システム用変換セル及び周波数変換システム - Google Patents
周波数変換システム用変換セル及び周波数変換システム Download PDFInfo
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- 239000013078 crystal Substances 0.000 claims abstract description 151
- 230000008859 change Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 17
- 230000009021 linear effect Effects 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 4
- 229910052738 indium Inorganic materials 0.000 description 13
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- 230000003287 optical effect Effects 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 230000003595 spectral effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 description 2
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 229940000489 arsenate Drugs 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VCZFPTGOQQOZGI-UHFFFAOYSA-N lithium bis(oxoboranyloxy)borinate Chemical compound [Li+].[O-]B(OB=O)OB=O VCZFPTGOQQOZGI-UHFFFAOYSA-N 0.000 description 2
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000019796 monopotassium phosphate Nutrition 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052701 rubidium Inorganic materials 0.000 description 2
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- 230000005483 Hooke's law Effects 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NNAZVIPNYDXXPF-UHFFFAOYSA-N [Li+].[Cs+].OB([O-])[O-] Chemical compound [Li+].[Cs+].OB([O-])[O-] NNAZVIPNYDXXPF-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- YISOXLVRWFDIKD-UHFFFAOYSA-N bismuth;borate Chemical compound [Bi+3].[O-]B([O-])[O-] YISOXLVRWFDIKD-UHFFFAOYSA-N 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- PSHMSSXLYVAENJ-UHFFFAOYSA-N dilithium;[oxido(oxoboranyloxy)boranyl]oxy-oxoboranyloxyborinate Chemical compound [Li+].[Li+].O=BOB([O-])OB([O-])OB=O PSHMSSXLYVAENJ-UHFFFAOYSA-N 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 1
- 238000001307 laser spectroscopy Methods 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- WYOHGPUPVHHUGO-UHFFFAOYSA-K potassium;oxygen(2-);titanium(4+);phosphate Chemical compound [O-2].[K+].[Ti+4].[O-]P([O-])([O-])=O WYOHGPUPVHHUGO-UHFFFAOYSA-K 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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Classifications
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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
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
- G02F1/3544—Particular phase matching techniques
-
- 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
- G02F1/01—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 for the control of the intensity, phase, polarisation or colour
- G02F1/0128—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 for the control of the intensity, phase, polarisation or colour based on electro-mechanical, magneto-mechanical, elasto-optic effects
- G02F1/0131—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 for the control of the intensity, phase, polarisation or colour based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence
-
- 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
- G02F1/3501—Constructional details or arrangements of non-linear optical devices, e.g. shape of non-linear crystals
-
- 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
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
- G02F1/3544—Particular phase matching techniques
- G02F1/3546—Active phase matching, e.g. by electro- or thermo-optic tuning
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Description
ε=Sσ (2)
ここでは、C及びSはそれぞれ当該材料の弾性行列及び剛性行列である。物理量C及びSは4階の対称テンソルであり、成分σ及びεは2階のテンソルである。関係式(1)及び(2)により、応力テンソルσの6成分を変形テンソルεの6成分と関連付けることが可能となる。
ここでは、Y及びZは結晶の結晶軸を示し、nyはY軸方向の屈折率であり、nzはZ軸方向の屈折率である。ωはパルセーション(pulsation)である。
波長の関数として屈折率nを表すセルマイヤーの式と組み合わせることにより、波長λの関数として複屈折性Δn(上記の式(4)で得られる)を計算できる。「Xカット」LBO結晶(平面θ=90°でカット)の場合のグラフを図8Aに示す。この構成では、基本波はZ軸に平行な電場と共に伝搬し、周波数2逓倍波はY軸に平行な電場と共に伝搬する。図8Aは、2つの波長(例:1200nmと1400nm)において、室温で位相整合条件が満たされる(Δn=0)ことを示している。そのため、1200nm〜1400nmの範囲で位相整合波長を変えるには、複屈折性を増大させることが必要となる。また、位相整合波長を1200nm未満又は1400nmを超える波長に変えるには、複屈折性を減少させることが必要となる。
Claims (14)
- 少なくとも1つの入射ビームを受光するための入射面(121A)と、少なくとも1つの周波数変換されたビームを放射するための出射面(121B)と、前記入射面及び前記出射面とは異なる少なくとも2つの平行面(120A,120B)と、を有し、第1位相整合波長によって特徴づけられる複屈折性非線形結晶(12)と、
力作用面と呼ばれ、前記非線形結晶の複屈折性に変化をもたらす、少なくとも1つの前記平行面(120A)に外部機械力を作用させるための手段(14、14A)と、備え、
作用する前記外部機械力の値は、前記第1位相整合波長とは異なる第2位相整合波長に整合する位相を得るために決定される
周波数変換セル(10)。 - 前記外部機械力は、前記力作用面に対して実質的に同じ方向に作用する
請求項1に記載の周波数変換セル。 - 前記力作用面の高さに、前記非線形結晶よりも硬くない材料からなる接触面を更に備える
先行する請求項の何れかに記載の周波数変換セル。 - 前記変換セルの波長選択性のために前記外部機械力を調整するための手段を更に備える
先行する請求項の何れかに記載の周波数変換セル。 - 温度の関数として前記外部機械力を調整するための手段を更に備える
先行する請求項の何れかに記載の周波数変換セル。 - 前記外部機械力を作用させるための前記手段は、回転するように固定された素子(14A)を駆動するためのネジ(18)を備える
先行する請求項の何れかに記載の周波数変換セル。 - 前記複屈折性非線形結晶は、その各主平面に沿ってカットされ、
入射ビームは、前記入射面に垂直な伝播軸に沿って前記非線形結晶を貫通するようになっており、非臨界位相整合を可能にする
先行する請求項の何れかに記載の周波数変換セル。 - 前記複屈折性非線形結晶は、CLBO、LBO、LNの中から選択される
先行する請求項の何れかに記載の周波数変換セル。 - 定められた波長の少なくとも1つの入射レーザビームを放射する光源(21)と、
前記波長での周波数変換のために、先行する請求項の何れかに記載の周波数変換セル(10)と、
を備える周波数変換システム。 - 第1位相整合波長によって特徴づけられる複屈折性非線形結晶(12)の入射面(121A)に少なくとも1つの入射レーザビームを送り、前記結晶は、又、少なくとも1つの周波数変換されたビームを放射するための出射面(121B)と、前記入射面及び前記出射面とは異なる少なくとも2つの平行面(120A,120B)と、を有し、
力作用面と呼ばれ、前記非線形結晶の複屈折性に変化をもたらす、少なくとも1つの前記平行面(120A)に外部機械力を作用させ、作用する前記外部機械力の値は、前記第1位相整合波長とは異なる第2位相整合波長で前記非線形結晶に整合する位相を得るために決定される
周波数変換方法。 - 作用する前記外部機械力は、10MPaから100GPaの間である
請求項10に記載の周波数変換方法。 - 前記外部機械力は、前記非線形結晶よりも硬くない材料からなる接触面を介して前記力作用面に作用する
請求項10又は11の何れかに記載の周波数変換方法。 - 波長選択性のために作用する前記外部機械力を更に調整する
請求項10〜12の何れかに記載の周波数変換方法。 - 温度の関数として作用する前記外部機械力を更に調整する
請求項10〜13の何れかに記載の周波数変換方法。
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FR1454514 | 2014-05-20 | ||
FR1454514A FR3021419B1 (fr) | 2014-05-20 | 2014-05-20 | Cellule de conversion pour systeme convertisseur de frequence et procede de conversion de frequence |
PCT/EP2015/061023 WO2015177169A1 (fr) | 2014-05-20 | 2015-05-19 | Cellule de conversion pour système convertisseur de fréquence et procédé de conversion de fréquence |
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JP2017519243A true JP2017519243A (ja) | 2017-07-13 |
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US (1) | US9841656B2 (ja) |
EP (1) | EP3146387B1 (ja) |
JP (1) | JP6696910B2 (ja) |
FR (1) | FR3021419B1 (ja) |
WO (1) | WO2015177169A1 (ja) |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH04330426A (ja) * | 1991-03-01 | 1992-11-18 | Fuji Photo Film Co Ltd | 光波長変換装置 |
JP2001183712A (ja) * | 1999-12-24 | 2001-07-06 | Ushio Sogo Gijutsu Kenkyusho:Kk | 波長変換装置 |
US20120236314A1 (en) * | 2011-03-14 | 2012-09-20 | Imra America, Inc. | Broadband generation of mid ir, coherent continua with optical fibers |
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WO2000072410A1 (en) * | 1999-05-26 | 2000-11-30 | Ii-Vi Incorporated | Improved optical contacting method and apparatus |
DE19928661A1 (de) * | 1999-06-23 | 2001-03-22 | Laser & Med Tech Gmbh | Vorrichtung zur Erhöhung des Wirkungsgrades von Frequenzkonversionsprozessen mit nichtlinearen Kristallen durch Ausübung von definierten mechanischen Spannungen |
US8462824B2 (en) * | 2009-04-22 | 2013-06-11 | The Regents Of The University Of Colorado | Phase-matched generation of coherent soft and hard X-rays using IR lasers |
EP2555050A4 (en) * | 2010-03-26 | 2014-01-22 | Nikon Corp | OPTICAL ELEMENT, LIGHT SOURCE DEVICE AND MANUFACTURING METHOD FOR THE OPTICAL ELEMENT |
EP2727198B1 (en) * | 2011-06-28 | 2017-04-12 | Danmarks Tekniske Universitet - DTU | System and method for processing electromagnetic radiation |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH04330426A (ja) * | 1991-03-01 | 1992-11-18 | Fuji Photo Film Co Ltd | 光波長変換装置 |
JP2001183712A (ja) * | 1999-12-24 | 2001-07-06 | Ushio Sogo Gijutsu Kenkyusho:Kk | 波長変換装置 |
US20120236314A1 (en) * | 2011-03-14 | 2012-09-20 | Imra America, Inc. | Broadband generation of mid ir, coherent continua with optical fibers |
Non-Patent Citations (1)
Title |
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MANN,G. ET AL.: "Influence of mechanical stress on the conversion efficiency of KTP and LBO", LASER METROLOGY AND INSPECTION,PROCEEDINGS OF SPIE, vol. vol.3823, JPN7019000287, 1999, pages 289-297 * |
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FR3021419B1 (fr) | 2017-10-13 |
FR3021419A1 (fr) | 2015-11-27 |
US20170090270A1 (en) | 2017-03-30 |
JP6696910B2 (ja) | 2020-05-20 |
US9841656B2 (en) | 2017-12-12 |
EP3146387A1 (fr) | 2017-03-29 |
EP3146387B1 (fr) | 2019-12-18 |
WO2015177169A1 (fr) | 2015-11-26 |
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