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公开(公告)号：US10374377B2
公开(公告)日：2019-08-06
申请号：US15544613
申请日：2016-01-13
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takashi Sekine , Yoshinori Kato , Yoshinori Tamaoki , Takashi Kurita , Toshiyuki Kawashima , Takaaki Morita
IPC: H01S3/04 , H01S3/042 , H01S3/07 , H01S3/10 , H01S3/06 , H01S3/02 , H01S3/093 , H01S3/16 , H01S3/091
Abstract: A plate-like laser medium has a through-hole for providing a flow of a cooling medium. The laser medium unit includes the plurality of laser media. A laser beam amplification device includes a laser medium unit 10, an excitation light source 21 that causes excitation light to enter the laser medium unit 10, a through-hole 16a of a window member as a unit for supplying the cooling medium in a through-hole 14a of the laser medium 14, and a cooling medium flow path F1 arranged around the laser medium unit 10.
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公开(公告)号：US20150270019A1
公开(公告)日：2015-09-24
申请号：US14434893
申请日：2013-10-10
Applicant: HAMAMATSU PHOTONICS K.K. , THE GRADUATE SCHOOL FOR THE CREATION OF NEW PHOTONICS INDUSTRIES , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takashi Sekine , Takashi Kurita , Toshiyuki Kawashima , Nakahiro Satoh , Hirofumi Kan , Yoneyoshi Kitagawa , Yoshitaka Mori , Katsuhiro Ishii , Kazuhisa Fujita , Ryohei Hanayama , Shinichiro Okihara , Atsushi Sunahara , Osamu Komeda , Naoki Nakamura , Yasuhiko Nishimura , Hirozumi Azuma
Abstract: A target shell monitoring device 4 that monitors an attitude and a position of the target shell Tg1, a compression laser output device 5a that irradiates the target shell Tg1 with a compression laser light LS1, and a heating laser output device 6 that irradiates the target shell Tg1 with a heating laser light LS3 following the compression laser light LS1 are provided. The target shell Tg1 has a hollow spherical shell shape, includes an approximately spherical space Sp on an inner side thereof, includes at least one through hole H1 connecting an outer side thereof and the space Sp, and includes, on an outer surface Sf1 thereof, irradiation areas Ar1 and Ar2 to be irradiated with compression laser lights.
Abstract translation: 监视目标壳体Tg1的姿态和位置的目标壳体监视装置4，利用压缩激光LS1照射目标壳体Tg1的压缩激光输出装置5a以及照射目标壳体的加热用激光输出装置6 提供具有压缩激光LS1之后的加热激光LS3的Tg1。 目标壳Tg1具有中空球壳形状，在其内侧包括大致球形的空间Sp，包括至少一个连接其外侧的空间Sp和通孔H1，并且在其外表面Sf1上， 照射区域Ar1和Ar2照射压缩激光。
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公开(公告)号：US11504803B2
公开(公告)日：2022-11-22
申请号：US16256031
申请日：2019-01-24
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yoshio Mizuta , Takashi Kurita , Takeshi Watari , Yuki Kabeya , Norio Kurita , Toshiyuki Kawashima
IPC: B23K26/06 , C21D10/00 , B23K26/0622 , B23K26/00 , B23K26/356
Abstract: A laser processing apparatus includes a light source which outputs a laser light, and a waveform control unit which controls a pulse waveform of the laser light irradiating the workpiece, in which the pulse waveform of the laser light controlled by the waveform control unit includes a main pulse and a foot pulse temporally preceding the main pulse, and a peak intensity of the foot pulse is smaller than a peak intensity of the main pulse, and a peak position of the main pulse is positioned in a retention time period of plasma generated due to an incidence of the foot pulse on the workpiece.
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公开(公告)号：US11424591B2
公开(公告)日：2022-08-23
申请号：US16469300
申请日：2017-11-21
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takashi Kurita , Yoshinori Kato , Toshiyuki Kawashima
Abstract: A laser device is a laser device that includes an output unit that outputs seed light to a light amplifying unit. The output unit has a light source unit that outputs, as the seed light, rays of light with a plurality of wavelengths lying within a gain range of the light amplifying unit, and a seed light control unit that controls an intensity-time waveform of the seed light output from the light source unit.
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公开(公告)号：US10063026B2
公开(公告)日：2018-08-28
申请号：US15543375
申请日：2016-01-13
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takashi Sekine , Yoshinori Kato , Yoshinori Tamaoki , Takashi Kurita , Toshiyuki Kawashima , Takaaki Morita
IPC: H01S3/04 , H01S3/10 , H01S3/042 , H01S3/16 , H01S3/06 , H01S3/0941 , H01S3/07 , H01S3/02 , H01S3/137 , H01S3/092
Abstract: A laser medium unit 10 in a laser beam amplification device includes a plurality of laser media 14. A cooling medium flow path F1 is provided around the laser medium unit 10 to cool the laser medium unit 10 from outside. A sealed space between the laser media 14 is filled with gas or liquid, and a laser beam for passing through the sealed space is not interfered by a cooling medium flowing outside. Therefore, a fluctuation of an amplified laser beam is prevented, and a quality such as stability and focusing characteristics of the laser beam is improved.
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Patent Agency Ranking
公开(公告)号：US09805829B2
公开(公告)日：2017-10-31
申请号：US14434893
申请日：2013-10-10
Applicant: HAMAMATSU PHOTONICS K.K. , The Graduate School for the Creation of New Photonics Industries , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takashi Sekine , Takashi Kurita , Toshiyuki Kawashima , Nakahiro Satoh , Hirofumi Kan , Yoneyoshi Kitagawa , Yoshitaka Mori , Katsuhiro Ishii , Kazuhisa Fujita , Ryohei Hanayama , Shinichiro Okihara , Atsushi Sunahara , Osamu Komeda , Naoki Nakamura , Yasuhiko Nishimura , Hirozumi Azuma
Abstract: A target shell monitoring device 4 that monitors an attitude and a position of the target shell Tg1, a compression laser output device 5a that irradiates the target shell Tg1 with a compression laser light LS1, and a heating laser output device 6 that irradiates the target shell Tg1 with a heating laser light LS3 following the compression laser light LS1 are provided. The target shell Tg1 has a hollow spherical shell shape, includes an approximately spherical space Sp on an inner side thereof, includes at least one through hole H1 connecting an outer side thereof and the space Sp, and includes, on an outer surface Sf1 thereof, irradiation areas Ar1 and Ar2 to be irradiated with compression laser lights.
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公开(公告)号：US20150023375A1
公开(公告)日：2015-01-22
申请号：US14380780
申请日：2012-12-28
Applicant: OSAKA UNIVERSITY , HAMAMATSU PHOTONICS K.K.
Inventor： Noriaki Miyanaga , Takashi Kurita , Toshiyuki Kawashima
IPC: H01S3/11
CPC classification number: H01S3/1106 , G02F1/39 , H01S3/005 , H01S3/0085 , H01S3/0092 , H01S3/1307
Abstract: A laser device 1 demultiplexes seed light L0 into a plurality of beams of laser light L1 and then continuously optically amplifies the plurality of beams of the laser light L1 with an amplifier 14. Therefore, its amplification factor can be set higher than that in the case of amplifying pulsed laser light. When producing multiplexed light L3 by multiplexing the beams of the amplified laser light L1 with a diffraction grating 16, respective phases of the beams of the laser light L1 are controlled such that an output peak of the multiplexed light L3 repeatedly appears at a converging position P1 at a predetermined time interval. This produces pulsed laser light at the converging position P1 from a plurality of beams of laser light L2 amplified at a high amplification factor. Hence, this laser device 1 can produce pulsed laser light with a high output.
Abstract translation: 激光装置1将种子光L0分离成多束激光L1，然后用放大器14连续光学地放大激光L1的多个光束。因此，其放大系数可以设定得高于 放大脉冲激光。 当通过将放大的激光L1的光束与衍射光栅16复用来产生多路复用光L3时，控制激光L1的各个相的相位，使得复用光L3的输出峰重复出现在会聚位置P1 以预定的时间间隔。 这样就从多个以高放大系数放大的激光束L2的会聚位置P1产生脉冲激光。 因此，该激光装置1能够产生高输出的脉冲激光。
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公开(公告)号：US11942751B2
公开(公告)日：2024-03-26
申请号：US18032403
申请日：2021-09-29
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takashi Kurita , Ryo Yoshimura , Ryo Makino , Yuu Takiguchi
IPC: H01S3/00 , B23K26/064 , G02F1/01 , G02F1/133 , G02F1/137
CPC classification number: H01S3/0085 , B23K26/064 , G02F1/0136 , G02F1/13318 , G02F1/137 , H01S3/0014
Abstract: Disclosed is a laser device including: a laser light source configured to emit laser light; a phase control unit configured to receive the laser light emitted from the laser light source, to control a spatial phase of a portion of the laser light, to emit the portion of the light as control light, and to emit another portion of the laser light as non-control light; a first optical system configured to irradiate an object with the control light emitted from the phase control unit; a detector configured to detect the non-control light emitted from the phase control unit; a second optical system configured to cause the non-control light emitted from the phase control unit to converge toward a detection surface of the detector.
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公开(公告)号：US09025627B2
公开(公告)日：2015-05-05
申请号：US14380780
申请日：2012-12-28
Applicant: Osaka University , Hamamatsu Photonics K.K.
Inventor： Noriaki Miyanaga , Takashi Kurita , Toshiyuki Kawashima
CPC classification number: H01S3/1106 , G02F1/39 , H01S3/005 , H01S3/0085 , H01S3/0092 , H01S3/1307
Abstract: A laser device 1 demultiplexes seed light L0 into a plurality of beams of laser light L1 and then continuously optically amplifies the plurality of beams of the laser light L1 with an amplifier 14. Therefore, its amplification factor can be set higher than that in the case of amplifying pulsed laser light. When producing multiplexed light L3 by multiplexing the beams of the amplified laser light L1 with a diffraction grating 16, respective phases of the beams of the laser light L1 are controlled such that an output peak of the multiplexed light L3 repeatedly appears at a converging position P1 at a predetermined time interval. This produces pulsed laser light at the converging position P1 from a plurality of beams of laser light L2 amplified at a high amplification factor. Hence, this laser device 1 can produce pulsed laser light with a high output.
Abstract translation: 激光装置1将种子光L0分离成多束激光L1，然后用放大器14连续光学地放大激光L1的多个光束。因此，其放大系数可以设定得高于 放大脉冲激光。 当通过将放大的激光L1的光束与衍射光栅16复用来产生多路复用光L3时，控制激光L1的各个相的相位，使得多路复用光L3的输出峰重复出现在会聚位置P1 以预定的时间间隔。 这样就从多个以高放大系数放大的激光束L2的会聚位置P1产生脉冲激光。 因此，该激光装置1能够产生高输出的脉冲激光。
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公开(公告)号：US12300971B2
公开(公告)日：2025-05-13
申请号：US17625431
申请日：2020-06-25
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takashi Kurita , Yoshinori Kato , Toshiyuki Kawashima
Abstract: A laser apparatus includes a light source unit and a light combining unit. The light source unit outputs first laser light and second laser light having a wavelength different from that of the first laser light to different optical paths. The light combining unit is optically coupled to the light source unit, and combines the first laser light and the second laser light to generate a burst pulse with a frequency according to a difference between the wavelength of the first laser light and the wavelength of the second laser light. In the light source unit, the wavelengths of the first laser light and the second laser light are set in advance or settable such that the frequency of the burst pulse is 1 GHz or more.
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