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1. 发明专利

DE69731148T2 未知
公开(公告)号：DE69731148T2
公开(公告)日：2006-03-09
申请号：DE69731148
申请日：1997-07-18
申请人： HAMAMATSU PHOTONICS KK , INST LASER TECHNOLOGY OSAKA , NAKAI SADAO , IZAWA YASUKAZU
发明人： KAN HIROFUMI , IZAWA YASUKAZU , YAMANAKA MASANORI , KIRIYAMA HIROMITSU , YOSHIDA TAKUJI , NAKAI SADAWO , YAMANAKA CHIYOE
IPC分类号： H01S3/06 , H01S3/08 , H01S3/10 , H01S3/23
摘要： A passive eight-pass solid-state laser amplifier is constructed using a quarter-wave plate (11), a total reflection mirror (12), a polarization beam splitter (5), and a total reflection mirror (6) while input/output faces of a hexagonal zigzag slab solid-state laser medium (15) optically pumped are kept nearly perpendicular to pulsed laser light. Thermal birefringence takes place in the laser medium (15) optically pumped with good symmetry by flash lamps or LDs (9) and is compensated for by a quartz 90 DEG rotator (10). Linearly s-polarized laser light reflected by a polarization beam splitter (3) is output as pulsed laser output light (13) to the outside. Owing to this, saturation laser amplification can be achieved using output laser light from a pulsed laser oscillator of relatively low output, as source light.

2. 发明专利

DE69731148D1 未知
公开(公告)号：DE69731148D1
公开(公告)日：2004-11-18
申请号：DE69731148
申请日：1997-07-18
申请人： HAMAMATSU PHOTONICS KK , INST LASER TECHNOLOGY OSAKA , NAKAI SADAO , IZAWA YASUKAZU
发明人： KAN HIROFUMI , IZAWA YASUKAZU , YAMANAKA MASANORI , KIRIYAMA HIROMITSU , YOSHIDA TAKUJI , NAKAI SADAWO , YAMANAKA CHIYOE
IPC分类号： H01S3/06 , H01S3/08 , H01S3/10 , H01S3/23
摘要： A passive eight-pass solid-state laser amplifier is constructed using a quarter-wave plate (11), a total reflection mirror (12), a polarization beam splitter (5), and a total reflection mirror (6) while input/output faces of a hexagonal zigzag slab solid-state laser medium (15) optically pumped are kept nearly perpendicular to pulsed laser light. Thermal birefringence takes place in the laser medium (15) optically pumped with good symmetry by flash lamps or LDs (9) and is compensated for by a quartz 90 DEG rotator (10). Linearly s-polarized laser light reflected by a polarization beam splitter (3) is output as pulsed laser output light (13) to the outside. Owing to this, saturation laser amplification can be achieved using output laser light from a pulsed laser oscillator of relatively low output, as source light.

3. 发明专利

JPH1041565A SOLID LASER AMPLIFIER 失效
公开(公告)号：JPH1041565A
公开(公告)日：1998-02-13
申请号：JP18963196
申请日：1996-07-18
申请人： HAMAMATSU PHOTONICS KK , NAKAI SADAO , IZAWA YASUKAZU , LASER GIJUTSU SOGO KENKYUSHO
发明人： IZAWA YASUKAZU , YAMANAKA MASANORI , KIRIYAMA HIROMITSU , YOSHIDA TAKUJI , NAKAI SADAO , YAMANAKA CHIYOE , SUGA HIROBUMI
IPC分类号： H01S3/06 , H01S3/08 , H01S3/10 , H01S3/23
摘要： PROBLEM TO BE SOLVED: To provide a solid laser amplifier which can accomplish the amplification of a saturation laser, using the output laser beam of a pulse laser amplifier of relatively low output as a seed beam. SOLUTION: A passivity-eight-times path solid laser amplifier is constituted by making the input/output face of a photo-excited hexagonal zigzag slab solid laser medium 15 roughly vertical to a pulse laser beam, and using a quarter wavelength plate 11, a full reflection mirror 12, a polarized beam splitter 5, and a full reflection mirror 6. The heat birefringence produced by the laser medium 15 photo-excited with good symmetry by a flash lamp or an LD 9 is compensated by a 90 deg. optical rotator 10 made of quartz. The laser beam of s straight polarization reflected at a polarized beam splitter 3 is outputted outside as a pulse laser output beam 13.

4. 发明专利

JP2005268506A Solid laser amplifier 审中-公开
标题翻译：固体激光放大器
公开(公告)号：JP2005268506A
公开(公告)日：2005-09-29
申请号：JP2004078355
申请日：2004-03-18
申请人： Hamamatsu Photonics Kk , Japan Atom Energy Res Inst , 日本原子力研究所 , 浜松ホトニクス株式会社
发明人： KIRIYAMA HIROMITSU , YAMAKAWA KOICHI , NAKATSUKA MASAHIRO , YOSHIDA EIJI , MIYAJIMA HIROBUMI , SUGA HIROBUMI
IPC分类号： H01S3/10 , H01S3/23
摘要： PROBLEM TO BE SOLVED: To provide an amplifier which amplifies laser beams which have a high repetition, high energy, a high efficiency, a good condensing performance and a high beam quality. SOLUTION: The solid laser amplifier can amplify laser beams 1 of a high repetition and high energy by exciting with a high output semiconductor laser, and can correct the wave face of the laser beams by a high proof stress phase conjugate mirror, whereby the laser beams having a good condensing performance and a high beam quality can be amplified with high energy. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供放大具有高重复，高能量，高效率，良好的冷凝性能和高光束质量的激光束的放大器。
解决方案：固体激光放大器可以通过高输出半导体激光器激发来放大高重复和高能量的激光束1，并且可以通过高校准应力相位共轭反射镜校正激光束的波面，由此具有良好的冷凝性能和高光束质量的激光束可以用高能量放大。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2011108641A Plasma shutter forming apparatus and forming method 有权
标题翻译：等离子切割机成型装置和成型方法
公开(公告)号：JP2011108641A
公开(公告)日：2011-06-02
申请号：JP2010237682
申请日：2010-10-22
申请人： Hamamatsu Photonics Kk , Japan Atomic Energy Agency , 浜松ホトニクス株式会社 , 独立行政法人日本原子力研究開発機構
发明人： SUZUKI MASAYUKI , KIRIYAMA HIROMITSU , DAITO IZURU , OKADA MASARU , SUGIYAMA HIRONORI , MATSUOKA SHINICHI , SUGA HIROBUMI
IPC分类号： H05H1/24 , A61N5/10 , G21K5/00 , G21K5/02
CPC分类号： H05H15/00 , A61N2005/1088 , H01S3/005
摘要： PROBLEM TO BE SOLVED: To provide a plasma shutter forming apparatus and a plasma shutter forming method to prevent damage of an optical element due to return light reflecting and returning to upstream of a laser driven radiation generating system when producing high density plasma in the laser driven radiation generating system. SOLUTION: In the system to generate and accelerate radiation by irradiating a laser pulse 5 to a target 2 and producing high density plasma 3, this apparatus is to form a plasma shutter 11 to interrupt the laser pulse turned into the return light 4 to an upstream of the system without being absorbed by the high density plasma 3. The apparatus has the target 10 for the plasma shutter and a laser irradiating portion for the plasma shutter, forms the plasma shutter 11 by irradiating the laser pulse from the laser irradiating portion for the plasma shutter to the target 10 for the plasma shutter to produce high density plasma, and interrupts the laser pulse turned into the return light 4. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种等离子体快门形成装置和等离子体快门形成方法，以防止由于在产生高密度等离子体时反射并返回到激光驱动辐射发生系统的上游的返回光而损坏光学元件激光驱动辐射发生系统。解决方案：在通过将激光脉冲5照射到目标2并产生高密度等离子体3来产生和加速辐射的系统中，该装置将形成等离子体快门11以中断转换成返回光4的激光脉冲到达系统的上游，而不被高密度等离子体3吸收。该装置具有用于等离子体快门的靶10和用于等离子体快门的激光照射部分，通过从激光照射照射激光脉冲形成等离子体快门11 用于等离子体快门的部分用于等离子体快门的目标10以产生高密度等离子体，并且将激光脉冲中断成为返回光4.版权所有：（C）2011，JPO＆INPIT

6. 发明专利

JP2011028043A Method and device for generating laser beam 审中-公开
标题翻译：用于产生激光束的方法和装置
公开(公告)号：JP2011028043A
公开(公告)日：2011-02-10
申请号：JP2009174357
申请日：2009-07-27
申请人： Hamamatsu Photonics Kk , Japan Atomic Energy Agency , 浜松ホトニクス株式会社 , 独立行政法人日本原子力研究開発機構
发明人： SUZUKI MASAYUKI , KIRIYAMA HIROMITSU , DAITO IZURU , OKADA MASARU , OMICHI HIROYUKI , MATSUOKA SHINICHI , SUGA HIROBUMI , TAMAOKI YOSHIAKI , YOSHII TATEHIRO , SATO HOSHUN
IPC分类号： G02F1/39
摘要： PROBLEM TO BE SOLVED: To provide a small laser beam generating device for generating an ultrashort laser pulse of high intensity, high repetition, and central wavelength of 1030 nm.
SOLUTION: The laser beam generating device includes a laser oscillator for outputting a laser pulse of a central wavelength of 1030 nm, a pulse expander for expanding a pulse width of a laser beam from the laser oscillator, an optical parametric chirp pulse pre-amplifier that includes nonlinear optical crystal and amplifies the intensity of the laser beam from the pulse expander by irradiation of a pulse laser beam for excitation, a main amplifier that includes a Yb-ion-dope laser medium, and amplifies the intensity of the laser beam from the pre-amplifier by radiating a laser beam for excitation that includes a wavelength of 940 nm or 975 nm and a high-repetition high energy, and a pulse compressor for generating an ultrashort laser pulse of high intensity, high repetition, and a central wavelength of 1030 nm by compressing the pulse width of the laser beam from the main amplifier.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于产生高强度，高重复和1030nm的中心波长的超短激光脉冲的小型激光束产生装置。解决方案：激光束产生装置包括用于输出中心波长为1030nm的激光脉冲的激光振荡器，用于扩大来自激光振荡器的激光束的脉冲宽度的脉冲扩展器，光学参量啁啾脉冲预包括非线性光学晶体的放大器，并且通过照射用于激发的脉冲激光束来放大来自脉冲扩展器的激光束的强度，包括Yb离子掺杂激光介质的主放大器，并且放大激光器的强度通过辐射包括940nm或975nm的波长和高重复高能量的激光的激光束，来自前置放大器的光束和用于产生高强度，高重复的超短激光脉冲的脉冲压缩器，以及通过压缩来自主放大器的激光束的脉冲宽度，中心波长为1030nm。版权所有（C）2011，JPO＆INPIT

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