JP2020524394A - レーザシステム及び方法 - Google Patents
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- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—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
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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
- 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
- H01S3/082—Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
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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
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2383—Parallel arrangements
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4012—Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
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- H—ELECTRICITY
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—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
- H01S3/0085—Modulating the output, i.e. the laser beam is modulated outside the laser cavity
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Abstract
Description
10 複数のレーザ共振器
12 中継アセンブリ
16 ガルバノメータ
17 移動可能な反射面
Claims (15)
- レーザシステムであって、
入力レーザビームを放出するように各共振器が作動可能である複数のレーザ共振器と、
各入力レーザビームを向け直し、かつ該向け直したビームのビームサイズを低減する少なくとも1つの湾曲反射面を含む中継アセンブリと、
各向け直したビームを受光し、かつ各入力レーザビームの電力レベルよりも高い電力レベルで結合レーザビームを出力する湾曲反射面を含むガルバノメータと、
前記結合レーザビームの球面収差を低減し、かつ該結合レーザビームを光ファイバの中に向けるカプリングアセンブリと、
を含み、
前記結合レーザビームは、前記光ファイバの最小ビームパラメータ積よりも低い最大ビームパラメータ積を有する、レーザシステム。 - 前記中継アセンブリの前記少なくとも1つの湾曲反射面は、第1の曲率半径を有し、
前記ガルバノメータの前記湾曲反射面は、第2の曲率半径を有し、
該第1及び第2の曲率は、異なっている、請求項1に記載のレーザシステム。 - 前記第1の曲率半径は、前記第2の曲率半径よりも大きい、請求項2に記載のレーザシステム。
- 前記第2の曲率半径は、前記結合レーザビームの球面収差を低減する、請求項2又は3に記載のレーザシステム。
- 各入力レーザビームが、(i)前記複数のレーザ共振器のうちの1つの共振器から前記中継アセンブリの前記少なくとも1つの湾曲反射面まで延びる第1の距離、(ii)該中継アセンブリの該少なくとも1つの湾曲反射面から前記ガルバノメータの前記反射面まで延びる第2の距離、及び(iii)該ガルバノメータの該反射面から光ファイバまで延びる第3の距離を含むビーム経路に沿って放出され、
前記第1及び第2の曲率半径は、前記第1、第2、及び第3の距離に応じて寸法決めされている、請求項2〜4のいずれか1項に記載のレーザシステム。 - 前記第1の距離は、前記第2の距離に略等しく、前記第3の距離は、該第1及び第2の距離の合計よりも大きい、請求項5に記載のレーザシステム。
- 前記カプリングアセンブリは、1つの非球面レンズ又は2つの球面レンズを含む、請求項1〜6のいずれか1項に記載のレーザシステム。
- 前記ガルバノメータと前記カプリングアセンブリの間に位置付けられた追加の光学構成要素を更に含み、
前記追加の光学構成要素は、ビーム分割器、ビーム結合器、シャッター、又はブラックシールドのうちの少なくとも1つを含む、請求項1〜7のいずれか1項に記載のレーザシステム。 - 前記カプリングアセンブリは、前記結合レーザビームを光ファイバの入力面の上に出力し、
該結合レーザビームのビームパラメータ積は、該入力面での該光ファイバのビームパラメータ積よりも少なくとも10%小さい、請求項1〜8のいずれか1項に記載のレーザシステム。 - 前記中継アセンブリは、平坦反射面を更に含み、
前記少なくとも1つの湾曲反射面は、前記平坦反射面に向けて前記入力レーザビームを向け直し、かつ該平坦反射面における該入力レーザビームの前記ビームサイズを低減し、
前記平坦反射面は、前記ガルバノメータの前記湾曲反射面に向けて前記入力レーザビームを向け直す、請求項1に記載のレーザシステム。 - 前記複数のレーザ共振器は、面に固定され、該面に対して前記中継アセンブリの各反射面が少なくとも2つの自由度で移動可能である、請求項10に記載のレーザシステム。
- 各入力レーザビームが、(i)前記複数のレーザ共振器のうちの1つの共振器から第1の反射面まで延びる第1の距離、(ii)該第1の反射面から第2の反射面まで延びる第2の距離、(iii)該第2の反射面から前記ガルバノメータの前記反射面まで延びる第3の距離、及び(iv)該ガルバノメータの該湾曲反射面から光ファイバまで延びる第4の距離を含むビーム経路に沿って放出され、
前記第1及び第2の曲率半径は、前記第1、第2、第3、及び第4の距離に応じて寸法決めされている、請求項11に記載のレーザシステム。 - 前記第1の距離は、前記第2の距離に略等しく、前記第3の距離は、該第1、第2、及び第3の距離の合計よりも大きい、請求項12に記載のレーザシステム。
- レーザシステムであって、
湾曲出力面を通して入力レーザビームを放出するように各共振器が作動可能である複数のレーザ共振器と、
各入力レーザビームを向け直し、かつ該向け直したビームのビームサイズを低減する少なくとも1つの湾曲反射面を含む中継アセンブリと、
各向け直したビームを受光し、かつ各入力レーザビームの電力レベルよりも高い電力レベルで結合レーザビームを出力する平坦反射面を含むガルバノメータと、
前記結合レーザビームを光ファイバの中に向けるカプリングアセンブリと、
を含み、
前記結合レーザビームは、前記光ファイバの最小ビームパラメータ積よりも低い最大ビームパラメータ積を有する、レーザシステム。 - 前記カプリングアセンブリ上の前記結合レーザビームのビームサイズを低減する球面中継レンズを更に含む、請求項1〜14のいずれか1項に記載のレーザシステム。
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US201762522428P | 2017-06-20 | 2017-06-20 | |
US62/522,428 | 2017-06-20 | ||
PCT/US2018/037496 WO2018236664A1 (en) | 2017-06-20 | 2018-06-14 | LASER SYSTEMS AND METHODS |
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CN116845679A (zh) * | 2017-06-20 | 2023-10-03 | 波士顿科学医学有限公司 | 激光系统和方法 |
WO2020150124A1 (en) * | 2019-01-15 | 2020-07-23 | Boston Scientific Scimed, Inc. | Alignment method and tools |
US11809011B2 (en) | 2020-12-28 | 2023-11-07 | Boston Scientific Scimed, Inc. | Alignment method and tools |
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CN110770984B (zh) | 2023-07-14 |
US20210044072A1 (en) | 2021-02-11 |
EP3642913A1 (en) | 2020-04-29 |
AU2018288649A1 (en) | 2019-10-10 |
US10840666B2 (en) | 2020-11-17 |
AU2023214295A1 (en) | 2023-08-31 |
CN116845679A (zh) | 2023-10-03 |
US11342722B2 (en) | 2022-05-24 |
US11916347B2 (en) | 2024-02-27 |
US20240154378A1 (en) | 2024-05-09 |
EP3961825A1 (en) | 2022-03-02 |
US20220263284A1 (en) | 2022-08-18 |
US20180366896A1 (en) | 2018-12-20 |
EP3642913B1 (en) | 2021-11-10 |
CN110770984A (zh) | 2020-02-07 |
WO2018236664A1 (en) | 2018-12-27 |
AU2018288649B2 (en) | 2023-05-11 |
JP7273728B2 (ja) | 2023-05-15 |
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