JP2015536473A - 共鳴増強周波数変換器 - Google Patents
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- 210000001624 hip Anatomy 0.000 abstract 2
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- VCZFPTGOQQOZGI-UHFFFAOYSA-N lithium bis(oxoboranyloxy)borinate Chemical compound [Li+].[O-]B(OB=O)OB=O VCZFPTGOQQOZGI-UHFFFAOYSA-N 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
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- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XBJJRSFLZVLCSE-UHFFFAOYSA-N barium(2+);diborate Chemical compound [Ba+2].[Ba+2].[Ba+2].[O-]B([O-])[O-].[O-]B([O-])[O-] XBJJRSFLZVLCSE-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 229910000160 potassium phosphate Inorganic materials 0.000 description 2
- 235000011009 potassium phosphates Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
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- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 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
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
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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
-
- 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
- G02F1/3525—Optical damage
-
- 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
- G02F1/37—Non-linear optics for second-harmonic generation
-
- 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
- G02F1/3503—Structural association of optical elements, e.g. lenses, with the non-linear optical device
-
- 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
- G02F1/3542—Multipass arrangements, i.e. arrangements to make light pass multiple times through the same element, e.g. using an enhancement cavity
-
- 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
- H01S3/005—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
- H01S3/0092—Nonlinear frequency conversion, e.g. second harmonic generation [SHG] or sum- or difference-frequency generation outside the laser cavity
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Lasers (AREA)
Abstract
Description
16 モジュール
19 レーザヘッド
20 緑色ビーム
Claims (8)
- 基本周波数の単一モード入力ビームを変換周波数の出力ビームに変換するための周波数変換器であって、
共振キャビティを画定すると共に前記キャビティ内に少なくとも一つのビームウェストを有する入力ビームを形作るように構成される複数の離間する光学部品であって、形作られた前記ビームが少なくとも一つの発散断面、コリメータ断面及びそれらの組み合わせからなる群から選択された断面を有する光学部品と、
キャビティ内に位置する非線形結晶と、
を備え、
前記結晶の中心がビーム経路に沿って前記ビームウェストから離間するように、形作られた前記ビームの前記ビームの発散断面が前記キャビティの往復長より小さいレイリー領域を有し、
前記コリメータビームの断面が前記往復長さより大きなレイリー領域を有する、周波数変換器。 - 前記結晶は、前記ビーム経路に沿った複数の位置の内の一つに選択的に位置して、前記キャビティが前記入力ビームの所与のパワーに対して前記結晶の各位置でインピーダンス整合されており、その結果、前記周波数変換器は、前記入力ビームのパワーの範囲において最大変換効率で操作可能である、請求項1に記載の周波数変換器。
- 基準周波数で、単一周波数、且つ単一モードのコヒーレントビームを出射する連続波源と、
前記連続波源からの下流に前記ビームを平行にさせるように構成されるコリメータと、
請求項1に記載の周波数変換器と、を備える光学システム。 - 前記結晶が、前記ビーム経路に沿った複数の位置の内の一つに選択的に位置して、前記キャビティが前記入力ビームの所与のパワーに対して前記結晶の各位置でインピーダンス整合されており、その結果、前記周波数変換器は、前記入力ビームのパワーの範囲において最大変換率で操作可能である、請求項3に記載の光学システム。
- 前記連続波源は、ファイバレーザ、半導体レーザ、固体レーザ、又はガスレーザを含む、請求項3に記載の光学システム。
- 前記連続波源から離間したレーザヘッドと、
基本周波数の前記ビームを増幅すると共に、前記周波数変換器と共に前記レーザヘッドに取り付けられたブースタファイバアンプと、
前記連続波源及び前記ブースタファイバアンプとを結合するファイバケーブルと、
を更に備える、請求項3に記載の光学システム。 - 周波数変換器内に位置する非線形結晶の出射面上、及び体積内の光学パワー密度低減方法であって、
単一周波数、且つ単一モードの基準周波数のビームを前記周波数変換器の共振キャビティへ連続的に結合させるステップと、
前記ビームを形作り、前記キャビティ内に少なくとも一つのビームウェストを形成するステップと、
前記キャビティ内に非線形結晶を
ビーム経路に沿った前記結晶の中心が前記ビームウェストから離間するようにキャビティ往復長さより小さいレイリー領域を有する発散ビーム内に、又は
前記キャビティ往復長さより大きいレイリー領域を有するコリメートビーム内に配置するステップと、
を備える光学パワー密度低減方法。 - 前記結晶が、前記ビーム経路に沿った複数の位置の内の一つに選択的に位置して、前記キャビティが前記入力ビームの所与のパワーに対して前記結晶の各位置でインピーダンス整合されており、その結果、前記周波数変換器は、前記入力ビームのパワーの範囲において最大変換率で操作可能である、請求項7に記載の光学パワー密度低減方法。
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PCT/US2012/060545 WO2014062173A1 (en) | 2012-10-17 | 2012-10-17 | Resonantly enhanced frequency converter |
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JP2018072425A Division JP6678694B2 (ja) | 2018-04-04 | 2018-04-04 | 共鳴増強周波数変換器 |
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EP (1) | EP2909899B1 (ja) |
JP (1) | JP6367813B2 (ja) |
KR (1) | KR101944434B1 (ja) |
CN (1) | CN104854764B (ja) |
WO (1) | WO2014062173A1 (ja) |
Cited By (2)
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JP2018519554A (ja) * | 2015-07-01 | 2018-07-19 | ケーエルエー−テンカー コーポレイション | 出力スケーリング可能な非線形光波長コンバータ |
JPWO2018092813A1 (ja) * | 2016-11-16 | 2019-10-17 | 国立大学法人電気通信大学 | レーザ共振器、及びレーザ共振器の設計方法 |
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DE102014218353B4 (de) * | 2014-09-12 | 2020-03-12 | Crylas Crystal Laser Systems Gmbh | Laseranordnung und Verfahren zur Erhöhung der Lebensdaueroptischer Elemente in einer Laseranordnung |
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- 2012-10-17 WO PCT/US2012/060545 patent/WO2014062173A1/en active Application Filing
- 2012-10-17 JP JP2015537671A patent/JP6367813B2/ja active Active
- 2012-10-17 KR KR1020157012746A patent/KR101944434B1/ko active IP Right Grant
- 2012-10-17 EP EP12886888.2A patent/EP2909899B1/en active Active
- 2012-10-17 CN CN201280077704.8A patent/CN104854764B/zh active Active
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JP2018519554A (ja) * | 2015-07-01 | 2018-07-19 | ケーエルエー−テンカー コーポレイション | 出力スケーリング可能な非線形光波長コンバータ |
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JP7176738B2 (ja) | 2016-11-16 | 2022-11-22 | 国立大学法人電気通信大学 | レーザ共振器、及びレーザ共振器の設計方法 |
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JP6367813B2 (ja) | 2018-08-01 |
CN104854764A (zh) | 2015-08-19 |
KR101944434B1 (ko) | 2019-01-31 |
EP2909899B1 (en) | 2020-06-17 |
CN104854764B (zh) | 2017-12-05 |
EP2909899A4 (en) | 2016-06-29 |
WO2014062173A1 (en) | 2014-04-24 |
EP2909899A1 (en) | 2015-08-26 |
KR20150070333A (ko) | 2015-06-24 |
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