JP6154955B2 - 寄生モードを抑制するレーザ共振器 - Google Patents
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- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/0813—Configuration of resonator
- H01S3/0816—Configuration of resonator having 4 reflectors, e.g. Z-shaped resonators
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- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
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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
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- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/0813—Configuration of resonator
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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
- H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
- H01S3/0971—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited
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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
- H01S3/22—Gases
- H01S3/223—Gases the active gas being polyatomic, i.e. containing two or more atoms
- H01S3/2232—Carbon dioxide (CO2) or monoxide [CO]
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Description
Claims (21)
- レーザのための共振器であって、
第1の共振器壁と、
該第1の共振器壁から横断方向に隔離され、前記第1の共振器壁及び第2の共振器壁間に間隙を定める第2の共振器壁と、
前記間隙に設けられたレーザ媒質と、
前記第1及び第2の共振器壁の第1の端部に配置された第1のミラーと、
前記第1及び第2の共振器壁の第2の端部に配置された第2のミラーと
を備えており、
前記第1のミラー及び前記第2のミラーは、前記レーザ媒質を通って複数の経路に沿って空洞内レーザビームを折り曲げるべく協働し、
前記複数の経路は、前記共振器内の余分な領域の境界を定め、空洞内レーザビームが前記余分な領域を通過せず、
寄生モード抑制体が、前記共振器の余分な領域内に、前記第1の共振器壁の第1の端部と前記第1のミラーとの間に配置され、前記第1のミラーと前記第2のミラーとの間に生じ得る寄生モードを少なくとも部分的に抑制することを特徴とする共振器。 - 前記寄生モード抑制体は、前記第1の共振器壁の第1の端部に設けられた凹状のシェルフの表面に取り付けられていることを特徴とする請求項1に記載の共振器。
- 前記第1の共振器壁及び前記第2の共振器壁間の領域を越えて前記第1のミラーの方に前記間隙を延ばすように構成されている延長部材を更に備えており、
前記寄生モード抑制体は、前記間隙が延びている領域内の前記延長部材の表面に取り付けられていることを特徴とする請求項1に記載の共振器。 - 前記寄生モード抑制体は、遮蔽部材の表面に取り付けられており、該遮蔽部材は、前記第1のミラーの直近に配置されていることを特徴とする請求項1に記載の共振器。
- 前記寄生モード抑制体は、金属材料及びセラミック材料から成る群から選択された材料から形成されていることを特徴とする請求項1に記載の共振器。
- 前記寄生モード抑制体は、寄生モードのビーム経路を少なくとも部分的に阻止することを特徴とする請求項1に記載の共振器。
- 前記レーザ媒質は、ガスプラズマ放電媒質であることを特徴とする請求項1に記載の共振器。
- 前記レーザ媒質は、一対の電極によって励起され、
該一対の電極の表面が前記第1の共振器壁及び前記第2の共振器壁を形成していることを特徴とする請求項7に記載の共振器。 - 前記寄生モード抑制体は、前記第1の共振器壁の第1の端部から形成され突出しているシェルフである延長面に取り付けられていることを特徴とする請求項1に記載の共振器。
- 前記寄生モード抑制体は、前記第1の共振器壁及び前記第2の共振器壁間の領域を越えて前記第1のミラーの方に前記間隙を延ばすように構成されている延長部材の表面に取り付けられており、
前記延長部材は、前記第1の共振器壁の第1の端部と前記第1のミラーとの間に設けられていることを特徴とする請求項1に記載の共振器。 - 前記寄生モード抑制体は、前記第1のミラーのミラー面の直近に配置されている遮蔽部材に取り付けられていることを特徴とする請求項1に記載の共振器。
- 前記寄生モード抑制体は、前記第1及び第2の共振器壁の第1の端部の一対のテーパ状の内面間に配置されていることを特徴とする請求項1に記載の共振器。
- 前記寄生モード抑制体は、前記第1及び第2の共振器壁の第1の端部の一対のテーパ状の内面間に配置されており、前記寄生モード抑制体は、前記第1の共振器壁の第1の端部のテーパ状の内面に接する非導電性の共振器壁を介して前記内面に取り付けられていることを特徴とする請求項12に記載の共振器。
- レーザのための共振器であって、
厚さを有するレーザ媒質と、
該レーザ媒質の第1の端部に配置された第1のミラーと、
前記レーザ媒質の第2の端部に配置された第2のミラーと
を備えており、
前記第1のミラー及び前記第2のミラーは、前記レーザ媒質を通って複数の経路に沿って空洞内レーザビームを折り曲げるべく協働し、
前記複数の経路は、前記共振器内に余分な領域の境界を定め、空洞内レーザビームが前記余分な領域を通過せず、
寄生モード抑制体が、前記共振器の余分な領域内に配置され、前記第1のミラーと前記第2のミラーとの間に生じ得る寄生モードを少なくとも部分的に抑制することを特徴とする共振器。 - 前記レーザ媒質は、固体状の材料であることを特徴とする請求項14に記載の共振器。
- 前記寄生モード抑制体は、固体状の利得媒質の端部内に埋め込まれており、前記固体状の材料内に形成された凹部であることを特徴とする請求項15に記載の共振器。
- 前記寄生モード抑制体は、固体状の利得媒質の端部内に埋め込まれており、前記固体状の材料内の非伝送領域から形成された凹部であることを特徴とする請求項15に記載の共振器。
- 前記寄生モード抑制体は、前記固体状の材料の端面に取り付けられていることを特徴とする請求項15に記載の共振器。
- 前記寄生モード抑制体は、前記レーザ媒質の第1の端部から前記第1のミラーの方に延びている延長部材の表面に取り付けられていることを特徴とする請求項14に記載の共振器。
- 前記寄生モード抑制体は、前記第1の共振器壁及び前記第2の共振器壁間の領域を越えて前記第1のミラーの方に前記間隙を延ばすように構成されている延長部材の表面に取り付けられており、該延長部材は、前記レーザ媒質の第1の端部の直近に配置されていることを特徴とする請求項1に記載の共振器。
- 前記寄生モード抑制体は、遮蔽部材の表面に取り付けられており、該遮蔽部材は、前記第1のミラーの直近に配置されていることを特徴とする請求項14に記載の共振器。
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US14/265,779 | 2014-04-30 | ||
US14/265,779 US9281651B2 (en) | 2014-04-30 | 2014-04-30 | Laser resonator with parasitic mode suppression |
PCT/US2015/028259 WO2015168265A2 (en) | 2014-04-30 | 2015-04-29 | Laser resonator with parasitic mode suppression |
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US (1) | US9281651B2 (ja) |
EP (1) | EP3055907B1 (ja) |
JP (1) | JP6154955B2 (ja) |
KR (1) | KR20160055865A (ja) |
CN (1) | CN106797100B (ja) |
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GB2552636B (en) * | 2017-11-22 | 2019-01-09 | Rofin Sinar Uk Ltd | Polarisation and mode selection technique for a laser |
CA3089935A1 (en) * | 2018-01-29 | 2019-08-01 | IDEA machine development design AND production ltd. | Compact coaxial laser |
EP3700028B1 (en) | 2019-02-22 | 2021-01-13 | Kern Technologies, LLC | Radio frequency slab laser |
EP3793044B1 (en) * | 2019-09-12 | 2021-11-03 | Kern Technologies, LLC | Output coupling from unstable laser resonators |
CN114649731A (zh) * | 2022-03-25 | 2022-06-21 | 商洛学院 | 一种基于折叠谐振腔的1048nm激光器 |
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- 2015-04-29 KR KR1020167009560A patent/KR20160055865A/ko not_active Application Discontinuation
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US20150318662A1 (en) | 2015-11-05 |
CN106797100B (zh) | 2019-11-26 |
EP3055907A2 (en) | 2016-08-17 |
US9281651B2 (en) | 2016-03-08 |
HK1226197A1 (zh) | 2017-09-22 |
WO2015168265A3 (en) | 2016-01-28 |
JP2016540373A (ja) | 2016-12-22 |
WO2015168265A2 (en) | 2015-11-05 |
KR20160055865A (ko) | 2016-05-18 |
EP3055907B1 (en) | 2021-12-15 |
CN106797100A (zh) | 2017-05-31 |
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