公开(公告)号：JP2005285812A

公开(公告)日：2005-10-13

申请号：JP2004092895

申请日：2004-03-26

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： SEKINE TAKASHI ,  MATSUMOTO OSAMU ,  KAWASHIMA TOSHIYUKI ,  KURITA TAKASHI ,  KANABE TADASHI

IPC: H01S3/131 ,  H01S3/00 ,  H01S3/094 ,  H01S3/10 ,  H01S3/23

CPC classification number: H01S3/2341 ,  H01S3/0014 ,  H01S3/005 ,  H01S3/025 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/10007 ,  H01S3/1301

Abstract: PROBLEM TO BE SOLVED: To reduce thermal effect by controlling an excitation distribution of a solid state laser medium appropriately when a solid state laser is excited using an excitation light source of such a structure as stacking a large number of unit light sources. SOLUTION: The excitation distribution controller 10 has a moving unit 40, a measuring section 50 and a control section 60 in addition to a solid state laser medium 31 and an excitation light source 32. The moving unit can alter the distance between the solid state laser medium and the excitation light source by moving the excitation light source. The measuring section measures an excitation distribution of the solid state laser medium. The control section regulates the distance between the solid state laser medium and the excitation light source by driving the moving unit depending on the excitation distribution thus measured. When a plurality of unit light sources 33 are stacked in the excitation light source, intensity distribution of exciting light of the solid state laser medium depends on the distance between the solid state laser medium and the excitation light source. Consequently, thermal effect can be reduced by regulating that distance and controlling excitation distribution of the solid state laser medium appropriately. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：通过使用堆叠多个单位光源的结构的激发光源激发固态激光器时，通过适当地控制固态激光介质的激发分布来减少热效应。 解决方案除了固体激光介质31和激发光源32之外，励磁分配控制器10还具有移动单元40，测量部分50和控制部分60.移动单元可以改变 固体激光介质和激发光源通过移动激发光源。 测量部分测量固体激光介质的激发分布。 控制部根据所测量的激励分布来调节固体激光介质与激发光源之间的距离，驱动移动单元。 当多个单位光源33堆叠在激发光源中时，固体激光介质的激发光的强度分布取决于固态激光介质和激发光源之间的距离。 因此，可以通过调节该距离并适当地控制固态激光介质的激发分布来降低热效应。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005158884A

公开(公告)日：2005-06-16

申请号：JP2003392695

申请日：2003-11-21

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： MATSUMOTO OSAMU ,  KAWASHIMA TOSHIYUKI ,  KANABE TADASHI

IPC: H01S3/10 ,  G02B27/09 ,  H01S3/00 ,  H01S3/05 ,  H01S3/06 ,  H01S3/08 ,  H01S3/094 ,  H01S3/16 ,  H01S3/17 ,  H01S3/23

CPC classification number: G02B27/0988 ,  H01S3/005 ,  H01S3/0606 ,  H01S3/08 ,  H01S3/08072 ,  H01S3/1611 ,  H01S3/17 ,  H01S3/2341 ,  H01S2301/20

Abstract: PROBLEM TO BE SOLVED: To provide a low price optical mask which can further reduce optical intensity peak resulting from diffraction. SOLUTION: The optical mask 14 is formed by stacking a first mask 141 and a second mask 142. The first mask 141 and the second mask 142 are respectively cerated aperture masks. The aperture 141a of the first mask 141 and the aperture 142a of the second mask 142 are respectively formed almost in the rectangular shapes and are respectively identical. The circumferential edge for defining the aperture 141a of the first mask 141 is formed in the sawtooth shape, while the circumferential edge for defining the aperture 142a of the second mask 142 is also formed in the sawtooth shape. In the optical mask 14, the first mask 141 and the second mask 142 are stacked so that the sawtooth is alternately disposed in the sawtooth shape of the circumferential edges for defining the aperture 141a of the first mask 141 and the aperture 142a of the second mask 142. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供可以进一步降低由衍射产生的光强度峰值的低价光学掩模。 解决方案：通过堆叠第一掩模141和第二掩模142来形成光学掩模14.第一掩模141和第二掩模142分别是陶瓷孔径掩模。 第一掩模141的孔141a和第二掩模142的孔142a分别形成为矩形，分别相同。 用于限定第一掩模141的孔141a的圆周边缘形成为锯齿状，而用于限定第二掩模142的孔142a的周缘也形成为锯齿状。 在光掩模14中，第一掩模141和第二掩模142被堆叠，使得锯齿交替地设置成圆周边缘的锯齿状，以限定第一掩模141的孔141a和第二掩模的孔142a （C）2005年，JPO＆NCIPI

公开(公告)号：JP2005079195A

公开(公告)日：2005-03-24

申请号：JP2003305211

申请日：2003-08-28

Applicant: Hamamatsu Photonics Kk ,  Sadao Nakai ,  貞雄 中井 ,  浜松ホトニクス株式会社

Inventor： KAWASHIMA TOSHIYUKI ,  KANABE TADASHI ,  NAKAI SADAO ,  SUGA HIROBUMI

IPC: H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/0941

CPC classification number: H01S3/042 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/0606 ,  H01S3/08095 ,  H01S3/0941

Abstract: PROBLEM TO BE SOLVED: To provide a solid state laser apparatus which can improve durability. SOLUTION: In the solid state laser apparatus 1, a main pipe 11 for circulating cooling water to a solid state laser medium 3 is equipped with a heat exchanger 14 for cooling the cooling water, thereby preventing the temperature rise of the laser medium 3. When the cooling water becomes acidic or alkaline, a controller 24 controls a flow control valve 23 and increases the flow rate of the cooling water flowing into a bypass pipe 21 equipped with a pure water filter 22, so that acidity or alkalinity of the cooling water can be weakened. As a result, deterioration of the predetermined portion of the laser apparatus which is to be caused by the cooling water can be prevented, so that the durability of the solid state laser apparatus 1 can be improved. Further, the pure water filter 22 is installed in the bypass pipe 21 connected in parallel with a part of the main pipe 11, so that decrease of the flow rate of cooling water circulating the main pipe 11 is restrained, and decrease of cooling efficiency of the laser medium 3 can be prevented. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 解决的问题：提供可提高耐久性的固态激光装置。 解决方案：在固态激光装置1中，用于将冷却水循环到固态激光介质3的主管11装备有用于冷却冷却水的热交换器14，从而防止激光介质的温度升高 当冷却水变成酸性或碱性时，控制器24控制流量控制阀23并且增加流入配备有纯水过滤器22的旁通管21中的冷却水的流量，使得酸性或碱度 冷却水可以削弱。 结果，可以防止由冷却水引起的激光装置的预定部分的劣化，从而可以提高固态激光装置1的耐久性。 此外，纯水过滤器22安装在与主管11的一部分并联连接的旁通管21中，从而抑制主管11循环的冷却水的流量的降低，降低冷却效率 可以防止激光介质3。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JPH10202218A

公开(公告)日：1998-08-04

申请号：JP566897

申请日：1997-01-16

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KAWASHIMA TOSHIYUKI ,  WARASHINA HIDENAGA ,  KURITA NORIO ,  KATO MASAYOSHI ,  HIRUMA TERUO

IPC: B09B3/00 ,  C10J3/00

Abstract: PROBLEM TO BE SOLVED: To provide a waste produce treating device for decomposing and gasifying organic matters and converting to substance capable of being reutilized. SOLUTION: This device is constituted so that the organic matters is thermally decomposed and gasified. In this case, this device is provided with a reaction furnace 10 consisting at least a portion of it of a transparent material, and a semiconductor laser 16 arranged at the vicinity of the reaction furnace 10, and the organic matters in the reaction furnace 10 are irradiated with laser light radiated from the semiconductor 16 via the portion of the reaction furnace 10 consisting of the transparent material.

公开(公告)号：JP2012222072A

公开(公告)日：2012-11-12

申请号：JP2011084480

申请日：2011-04-06

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： SEKINE TAKASHI ,  KURITA TAKASHI ,  KAWASHIMA TOSHIYUKI ,  SUGA HIROBUMI

IPC: H01S3/10 ,  H01S3/113 ,  H01S3/23

Abstract: PROBLEM TO BE SOLVED: To provide a laser amplifier which can amplify seed light efficiently in a laser medium part.SOLUTION: The laser amplifier comprises a seed light source outputting seed light L1, an excitation light source outputting excitation light L2, a laser medium part 5 amplifying and outputting the seed light L1 when the seed light L1 is input in a state where the excitation light L2 is input, and a saturable absorber 6 the light transmittance of which increases when the seed light L1 is input. The saturable absorber 6 is juxtaposed to the laser medium part 5 along the optical path of the seed light L1.

Abstract translation: 要解决的问题：提供一种能够在激光介质部分中有效放大种子光的激光放大器。 解决方案：激光放大器包括输出种子光L1的种子光源，输出激发光L2的激发光源，在种子光L​​1输入时放大并输出种子光L1的激光介质部分5， 输入激发光L2和当输入种子光L1时其透光率增加的可饱和吸收体6。 饱和吸收体6沿着种子光L1的光路与激光介质部5并置。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012038764A

公开(公告)日：2012-02-23

申请号：JP2010174581

申请日：2010-08-03

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： YASUHARA AKIRA ,  KAWASHIMA TOSHIYUKI

IPC: H01S5/024

Abstract: PROBLEM TO BE SOLVED: To provide a Faraday isolator that maintains satisfactory extinction characteristics with respect to return light beam even when used in a laminated semiconductor laser array.SOLUTION: A Faraday isolator 3 comprises: a plurality of heat sink substrates 12 composed of non-magnetic material that are arranged so as to be parallel to each other; multiple layers of Faraday rotators 10 placed on respective multiple layers of the heat sink substrates 12; a magnet 9 for applying a magnetic field to the multiple layers of the Faraday rotators 10 in a direction along the surfaces of the heat sink substrates 12; a first and second polarization plate 5, 8 that are arranged in the direction of the magnetic field with respect to the multiple layers of the Faraday rotators 10, and placed so as to sandwich the multiple layers of the Faraday rotators 10; and heat sink support plates 11 composed of non-magnetic material that are connected to end surfaces 12a of the multiple layers of the heat sink substrates 12 to support the heat sink substrates 12.

Abstract translation: 要解决的问题：提供一种法拉第隔离器，其即使在层叠半导体激光器阵列中使用时也能保持相对于返回光束的令人满意的消光特性。 解决方案：法拉第隔离器3包括：多个由非磁性材料构成的散热体基板12，其布置成彼此平行; 放置在散热片基板12的相应多层上的多层法拉第旋转器10; 用于沿着散热基板12的表面的方向向法拉第转子10的多层施加磁场的磁体9; 相对于法拉第旋转器10的多层布置在磁场方向上的第一和第二偏振板5,8，并被放置成夹住多层法拉第旋转器10; 以及由非磁性材料构成的散热片支撑板11，其连接到多个散热基板12的端面12a以支撑散热基板12.版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011054675A

公开(公告)日：2011-03-17

申请号：JP2009200630

申请日：2009-08-31

Applicant: Hamamatsu Photonics Kk ,  Osaka Univ ,  国立大学法人大阪大学 ,  浜松ホトニクス株式会社

Inventor： KAWANAKA JUNJI ,  KATAI TAKASHI ,  KAWASHIMA TOSHIYUKI ,  SUGA HIROBUMI

IPC: H01S3/042

Abstract: PROBLEM TO BE SOLVED: To achieve high efficiency in efficiently cooling a whole laser medium, and also miniaturize a device. SOLUTION: A solid-state laser device 1 having a solid-state laser medium 7 includes: a cooling medium container 5 for storing the solid-state laser medium 7, where an opening 37 is formed so as to pass excitation lights L1, L2 with respect to the solid-state laser medium 7 and an output light from the solid-state laser medium 7; and a fixing member 25 for fixing the solid-state laser medium 7 with respect to the opening 37 of the cooling medium container 5. The fixing member 25 is configured to clog the opening 37 from the inner side of the cooling medium container 5 by pressing the solid-state laser medium 7 toward the inner surface of the cooling medium container 5. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了实现高效率地有效地冷却整个激光介质，并且还使装置小型化。 解决方案：具有固体激光介质7的固态激光装置1包括：用于存储固态激光介质7的冷却介质容器5，其中形成开口37以使激发光L1 ，L2相对于固体激光介质7和来自固体激光介质7的输出光; 以及用于将固态激光介质7相对于冷却介质容器5的开口37固定的固定部件25.固定部件25通过按压从冷却介质容器5的内侧堵塞开口37 固体激光介质7朝向冷却介质容器5的内表面。版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2008153462A

公开(公告)日：2008-07-03

申请号：JP2006340331

申请日：2006-12-18

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： KURITA TAKASHI ,  IKEGAWA YASUSHI ,  KAWASHIMA TOSHIYUKI ,  SUGA HIROBUMI

IPC: H01S3/042

Abstract: PROBLEM TO BE SOLVED: To provide a solid-state laser amplifier which is capable of achieving uniformed temperature distribution of a solid-state laser medium in a simple configuration. SOLUTION: A solid-state laser amplifier 1 has a solid-state laser medium 3 which amplifies the light incoming from an incidence plane by irradiation of the excitation light to emit the resulting light from an outgoing plane, and a heating element 5 provided on any plane other than the incidence plane and outgoing plane of the solid-state laser medium 3, wherein the heating element 5 heats itself by absorbing the spontaneous emission light generated in the solid-state laser medium 3. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 解决的问题：提供能够以简单的结构实现固体激光介质的均匀温度分布的固态激光放大器。 解决方案：固态激光放大器1具有固体激光介质3，其通过照射激发光来放大从入射平面入射的光以从出射面发射所得到的光;以及加热元件5 设置在固体激光介质3的入射面和出射面以外的任何平面上，其中，加热元件5通过吸收在固态激光介质3中产生的自发发射光而加热自身。 C）2008，JPO＆INPIT

公开(公告)号：JP2007316158A

公开(公告)日：2007-12-06

申请号：JP2006143192

申请日：2006-05-23

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： YASUHARA AKIRA ,  KAWASHIMA TOSHIYUKI

IPC: G02F1/03 ,  H01S3/23

Abstract: PROBLEM TO BE SOLVED: To provide a polarization control element capable of efficiently reducing the influence of a thermal effect due to the increase of output of an incident light beam.
SOLUTION: The polarization control element 1 is provided with: two opieces of Pockels cells 3a, 3b each of which comprises a medium 5 composed of electrooptical material having the Pockels effect and a pair of planar electrodes 6 joined to the surface of the medium 5 so as to hold the medium 5 therewith, and which are disposed in series along the incident direction of the incident light beam O
in ; and a 90° quartz rotator 4 which is disposed between the two Pockels cells 3a, 3b and rotates a polarizing surface of the incident light beam O
in which propagates between the two pieces of Pockels cells 3a, 3b by 90°.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够有效地减少由于入射光束的输出的增加引起的热效应的影响的偏振控制元件。 解决方案：偏振控制元件1设置有：两个Pockels单元3a，3b的两个，其中包括由具有Pockels效应的电光材料构成的介质5和连接到该表面的一对平面电极6 介质5，以便保持介质5，并沿着中的入射光束O 的入射方向串联布置; 以及设置在两个普克尔斯单元3a，3b之间的90°石英旋转器4，并使中的入射光束O 的偏振表面旋转，该偏振面在两个Pockels单元3a，3b之间传播。 90°。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007216241A

公开(公告)日：2007-08-30

申请号：JP2006037079

申请日：2006-02-14

Applicant: Hamamatsu Photonics Kk ,  浜松ホトニクス株式会社

Inventor： MATSUMOTO OSAMU ,  KAWASHIMA TOSHIYUKI ,  YASUHARA AKIRA ,  SEKINE TAKASHI ,  KURITA TAKASHI ,  IKEGAWA YASUSHI

IPC: B23K26/00 ,  B23K26/08 ,  B23K26/12 ,  C21D7/04

Abstract: PROBLEM TO BE SOLVED: To provide a laser beam peening device and a laser beam peening method capable of performing the consistent peening on a workpiece placed in a liquid. SOLUTION: The laser beam peening device 1 has a guide body 6 with its incident surface 6b being arranged so as to be in contact with the atmosphere, and its light emitting surface 6c being arranged so as to be in contact with a liquid 2. By guiding laser beams L via the guide body 6, a surface of a workpiece P can be irradiated with the laser beams L without directly passing the laser beam through a liquid surface 2a of the liquid 2 with the workpiece P arranged therein. Thus, the laser beam peening device 1 is capable of irradiating the laser beams L on the workpiece P without being affected by the flicker of the liquid surface 2a or the reflection by the liquid surface 2a, suppressing any fluctuation of the irradiation position and the irradiation intensity of the laser beams L with respect to the workpiece P arranged in the liquid 2, and performing the consistent peening. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够对放置在液体中的工件执行一致的喷丸处理的激光束喷丸装置和激光束喷丸方法。 解决方案：激光束喷丸装置1具有引导体6，其入射面6b被布置成与大气接触，并且其发光表面6c布置成与液体接触 通过引导体6引导激光束L，可以用激光束L照射工件P的表面，而不会使激光束直接通过布置在其中的工件P的液体2的液面2a。 因此，激光束击锤装置1能够在不影响液面2a的闪烁或液面2a的反射的情况下照射工件P上的激光束L，抑制照射位置和照射的任何波动 激光束L相对于布置在液体2中的工件P的强度，并且执行一致的喷丸处理。 版权所有（C）2007，JPO＆INPIT