JP4231829B2 - 内部共振器型和周波混合レーザ - Google Patents
内部共振器型和周波混合レーザ Download PDFInfo
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- JP4231829B2 JP4231829B2 JP2004243827A JP2004243827A JP4231829B2 JP 4231829 B2 JP4231829 B2 JP 4231829B2 JP 2004243827 A JP2004243827 A JP 2004243827A JP 2004243827 A JP2004243827 A JP 2004243827A JP 4231829 B2 JP4231829 B2 JP 4231829B2
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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
- H01S3/10—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
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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
- H01S3/07—Construction or shape of active medium consisting of a plurality of parts, e.g. segments
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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
- H01S3/0627—Construction or shape of active medium the resonator being monolithic, e.g. microlaser
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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
- H01S3/09—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
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
- H01S3/09415—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-pumping
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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
- H01S3/14—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
- H01S3/1611—Solid materials characterised by an active (lasing) ion rare earth neodymium
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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
- H01S3/14—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
- H01S3/163—Solid materials characterised by a crystal matrix
- H01S3/164—Solid materials characterised by a crystal matrix garnet
- H01S3/1643—YAG
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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
- H01S3/14—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
- H01S3/163—Solid materials characterised by a crystal matrix
- H01S3/1671—Solid materials characterised by a crystal matrix vanadate, niobate, tantalate
- H01S3/1673—YVO4 [YVO]
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Description
Nd:YVO4、914nm → 457nm
Nd:YAG、946nm → 473nm
Nd:YLF、1047nm → 523nm
Nd:YAG、1064nm → 532nm
Nd:YVO4、1064nm → 532nm
Nd:YAG、1112nm →556nm
これらのレーザ波長のうち波長946nmと1064nmとから、非線形光学結晶を使用して和周波混合をおこなうことにより、波長が501nmのレーザ光が得られるのは容易に推測できる。
第2の異なる点は、第1の反射鏡5、第2の反射鏡、第3の反射鏡に以下の表4に示される反射率の波長特性をもたせた点である。
2 レンズ
3、4 シリンドリカルレンズ
5 第1の反射鏡
6 第2の反射鏡
7 第3の反射鏡
8 Nd:YAG結晶
9 Nd:YVO4結晶
10 KTP結晶
11 第1のレーザ結晶
12 第2のレーザ結晶
13 非線形光学結晶
14 集光光学系
15 励起光
16 出力光
Claims (9)
- 半導体レーザ励起固体レーザにおいて、
少なくとも第1の反射鏡、第1のレーザ結晶、第2の反射鏡、第2のレーザ結晶、非線形光学結晶、および第3反射鏡を順に配置し、
前記第1の反射鏡と前記第3の反射鏡の間で前記第1のレーザ結晶の誘導放出遷移を利用して第1の波長でレーザ発振をおこなう第1のレーザ共振器を構成し、
前記第2のレーザ結晶が、前記第1のレーザ結晶と同じ励起が可能な波長を持ち、また前記第2のレーザ結晶は前記第1の波長において吸収遷移や誘導放出遷移を持たない材料であり、前記第2の反射鏡と前記第3の反射鏡の間で前記第2のレーザ結晶の誘導放出遷移を利用して第2の波長でレーザ発振をおこなう第2のレーザ共振器を構成し、
さらに、前記非線形光学結晶が前記第1の波長と前記第2の波長の和周波混合により第3の波長のレーザ光を発生するための位相整合が可能であり、
さらに、1個の半導体レーザとこの半導体レーザから発するレーザ光を集光する手段を有し、
前記半導体レーザから発するレーザ光によって前記第1のレーザ結晶と前記第2のレーザ結晶の両方を一方向から同時に励起する構成であることを特徴とする内部共振器型和周波混合レーザ。
- 請求項1の内部共振器型和周波混合レーザにおいて、
前記第1の反射鏡が前記第1のレーザ結晶の表面上に施した誘電体多層膜であることを特徴とする内部共振器型和周波混合レーザ。 - 請求項1の内部共振器型和周波混合レーザにおいて、
前記第2の反射鏡が前記第2のレーザ結晶の表面上に施した誘電体多層膜であることを特徴とする内部共振器型和周波混合レーザ。 - 請求項1の内部共振器型和周波混合レーザにおいて、
前記第1の反射鏡と前記第2の反射鏡を、前記第1のレーザ結晶の対向する2面の表面上にそれぞれ施した誘電体多層膜であることを特徴とする内部共振器型和周波混合レーザ。 - 請求項1の内部共振器型和周波混合レーザにおいて、
前記第1のレーザ結晶にはNd:YAG結晶を使用しこれにより前記第1の波長が946nmとなるレーザ発振をさせ、また、前記第2のレーザ結晶にはNd:YVO4結晶を使用し前記第2の波長が1064nmとなる発振をさせることにより、前記第3の波長が約501nmとなるレーザ光を出力することを特徴とする内部共振器型和周波混合レーザ。 - 請求項1の内部共振器型和周波混合レーザにおいて、
前記第1のレーザ結晶にはNd:YAG結晶を使用しこれにより前記第1の波長が1318nmとなるレーザ発振をさせ、また、前記第2のレーザ結晶にはNd:YVO4結晶を使用し前記第2の波長が1064nmとなる発振をさせることにより、前記第3の波長が約589nmとなるレーザ光を出力することを特徴とする内部共振器型和周波混合レーザ。 - 請求項1の内部共振器型和周波混合レーザにおいて、
前記第1のレーザ結晶にはNd:YVO4結晶を使用しこれにより前記第1の波長が1342nmとなるレーザ発振をさせ、また、前記第2のレーザ結晶にはNd:YAG結晶を使用し前記第2の波長が1064nmとなる発振をさせることにより、前記第3の波長が約594nmとなるレーザ光を出力することを特徴とする内部共振器型和周波混合レーザ。 - 請求項5、6及び7のいずれかの内部共振器型和周波混合レーザにおいて、
前記非線形光学結晶としてKTiOPO4結晶を使用することを特徴とする、内部共振器型和周波混合レーザ。 - 請求項5、6及び7のいずれかの内部共振器型和周波混合レーザにおいて、
前記Nd:YVO4結晶の代わりにNd:GdVO4結晶を使用することを特徴とする、内部共振器型和周波混合レーザ。
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JP2004243827A JP4231829B2 (ja) | 2004-08-24 | 2004-08-24 | 内部共振器型和周波混合レーザ |
US10/950,585 US7187703B2 (en) | 2004-08-24 | 2004-09-28 | Intracavity sum-frequency mixing laser |
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JP2004243827A JP4231829B2 (ja) | 2004-08-24 | 2004-08-24 | 内部共振器型和周波混合レーザ |
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Cited By (1)
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JP7213883B2 (ja) | 2018-01-24 | 2023-01-27 | アーファオエル・リスト・ゲーエムベーハー | トルク伝達シャフトにおける力および/またはトルクを規定するための測定システムおよび方法 |
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JP2006093627A (ja) * | 2004-09-27 | 2006-04-06 | National Institutes Of Natural Sciences | レーザ装置 |
FR2882860B1 (fr) * | 2005-03-04 | 2009-05-22 | Oxxius Sa Sa | "dispositif laser a deux longueurs d'onde et systeme comprenant un tel dispositif" |
US7535938B2 (en) * | 2005-08-15 | 2009-05-19 | Pavilion Integration Corporation | Low-noise monolithic microchip lasers capable of producing wavelengths ranging from IR to UV based on efficient and cost-effective frequency conversion |
JP4411540B2 (ja) * | 2005-09-15 | 2010-02-10 | ソニー株式会社 | 半導体レーザ装置 |
JP4352337B2 (ja) * | 2005-09-16 | 2009-10-28 | ソニー株式会社 | 半導体レーザおよび半導体レーザ装置 |
JP2007266537A (ja) * | 2006-03-30 | 2007-10-11 | Showa Optronics Co Ltd | 内部共振器型和周波混合レーザ |
WO2009069282A1 (ja) | 2007-11-27 | 2009-06-04 | Panasonic Corporation | 波長変換レーザ |
WO2011016170A1 (ja) | 2009-08-03 | 2011-02-10 | パナソニック株式会社 | 波長変換レーザ及び画像表示装置 |
WO2011027731A1 (ja) * | 2009-09-07 | 2011-03-10 | 三菱電機株式会社 | 平面導波路型レーザ装置 |
US8340151B2 (en) | 2010-12-13 | 2012-12-25 | Ut-Battelle, Llc | V-shaped resonators for addition of broad-area laser diode arrays |
US20150188281A1 (en) * | 2012-11-26 | 2015-07-02 | Mitsubishi Electric Corporation | Laser device |
CN104577669A (zh) * | 2013-10-22 | 2015-04-29 | 无锡津天阳激光电子有限公司 | 一种风速仪用四端输出808nm与1319nm与双532nm波长光纤激光器 |
IL236339A0 (en) * | 2014-12-18 | 2015-04-30 | Ocuwave Ltd | laser system |
CN104966983A (zh) * | 2015-07-02 | 2015-10-07 | 天津大学 | 一种激光二极管泵浦的新型黄橙光激光器 |
US9312701B1 (en) * | 2015-07-16 | 2016-04-12 | Wi-Charge Ltd | System for optical wireless power supply |
CA3057518A1 (en) * | 2017-03-24 | 2018-09-27 | Macquarie University | Improvements in terahertz lasers and terahertz extraction |
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US6201638B1 (en) * | 1998-01-23 | 2001-03-13 | University Technology Corporation | Comb generating optical cavity that includes an optical amplifier and an optical modulator |
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Cited By (1)
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JP7213883B2 (ja) | 2018-01-24 | 2023-01-27 | アーファオエル・リスト・ゲーエムベーハー | トルク伝達シャフトにおける力および/またはトルクを規定するための測定システムおよび方法 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |