公开(公告)号：US06898230B2

公开(公告)日：2005-05-24

申请号：US09985471

申请日：2001-11-02

Applicant: Shuichi Fujikawa ,  Koji Yasui

Inventor： Shuichi Fujikawa ,  Koji Yasui

IPC: G02F1/37 ,  H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/113 ,  H01S3/16 ,  H01S3/23 ,  H01S5/028 ,  H01S5/40 ,  H01S3/091

CPC classification number: H01S3/0941 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/08059 ,  H01S3/08095 ,  H01S3/09408 ,  H01S3/094084 ,  H01S3/1618 ,  H01S3/1643 ,  H01S5/024 ,  H01S5/14 ,  H01S5/4031 ,  H01S5/4062

Abstract: A semiconductor laser array is located beside a solid state laser element, and an optical resonator for excitation light includes a coating highly reflective to an oscillation wavelength of the semiconductor laser array on an end face of the semiconductor laser array, opposite from the solid state laser element and a side of the solid state laser element. The solid state laser element is located inside of the optical resonator, and the solid state laser element is excited optically by the excitation light.

Abstract translation: 半导体激光器阵列位于固体激光元件旁边，激发光的光谐振器包括与半导体激光器阵列的端面上的半导体激光器阵列的振荡波长高度反射的涂层，与固态激光器相反 元件和固体激光元件的一侧。 固态激光元件位于光谐振器的内部，固体激光元件被激发光光学激发。

公开(公告)号：US06347102B1

公开(公告)日：2002-02-12

申请号：US09441554

申请日：1999-11-17

Applicant: Susumu Konno ,  Koji Yasui ,  Kenji Kumamoto ,  Kuniaki Iwashiro

Inventor： Susumu Konno ,  Koji Yasui ,  Kenji Kumamoto ,  Kuniaki Iwashiro

IPC: H01S310

CPC classification number: H01S3/109 ,  B23K26/06 ,  B23K26/064 ,  B23K26/0643 ,  G02F1/3534 ,  G02F2001/354 ,  G02F2001/3546 ,  H01S3/11

Abstract: A wavelength conversion laser for generating sum frequency laser beam comprising a laser resonator, a solid-state laser active medium, a second harmonic generation wavelength conversion crystal and a sum frequency generation wavelength conversion crystal, wherein the length of the second harmonic generation wavelength conversion crystal along the optical axis is set to be shorter than that of the sum frequency generation wavelength conversion crystal.

Abstract translation: 一种用于产生包括激光谐振器，固态激光器介质，二次谐波发生波长转换晶体和和频产生波长转换晶体的和频激光束的波长转换激光器，其中二次谐波产生波长转换晶体的长度 沿着光轴设定为比和频产生波长转换晶体短。

公开(公告)号：US5889808A

公开(公告)日：1999-03-30

申请号：US825048

申请日：1997-03-27

Applicant: Tetsuo Kojima ,  Koji Yasui

Inventor： Tetsuo Kojima ,  Koji Yasui

IPC: H01S3/042 ,  H01S3/04 ,  H01S3/094 ,  H01S3/0941

CPC classification number: H01S3/0941 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/094057

Abstract: To inexpensively and in a simple configuration provide a solid laser amplifier and a solid laser unit capable of generating a high output and high quality laser beam, the unit includes a solid laser medium 5A containing active solid media; a flow tube 14 or the like allowing a cooling medium 24 for cooling the solid laser medium 5A; and a laser array 12 so controlled in temperature as to emit an excitation light 9 for exciting the solid laser medium 5A, the wavelength of which lies within the absorption spectra of a solid laser medium 5A yet does not coincide with that of the absorption spectrum peak of a solid laser medium 5A.

Abstract translation: 为了廉价并且以简单的配置提供了能够产生高输出和高质量激光束的固体激光放大器和固体激光器单元，该单元包括含有活性固体介质的固体激光介质5A; 流动管14等，用于冷却固体激光介质5A的冷却介质24; 以及如此控制的激光阵列12，以发射用于激发固体激光介质5A的激发光9，其激光位于固体激光介质5A的吸收光谱内，但与吸收光谱峰的波长不一致 的固体激光介质5A。

公开(公告)号：US5506858A

公开(公告)日：1996-04-09

申请号：US121347

申请日：1993-09-15

Applicant: Yushi Takenaka ,  Masaki Kuzumoto ,  Kenji Yoshizawa ,  Takashi Yamamoto ,  Masato Matsubara ,  Junichi Nishimae ,  Koji Yasui ,  Akihiro Otani

Inventor： Yushi Takenaka ,  Masaki Kuzumoto ,  Kenji Yoshizawa ,  Takashi Yamamoto ,  Masato Matsubara ,  Junichi Nishimae ,  Koji Yasui ,  Akihiro Otani

IPC: B23K26/06 ,  H01S3/036 ,  H01S3/06 ,  H01S3/07 ,  H01S3/08 ,  H01S3/0975 ,  H01S3/098 ,  H01S3/13 ,  H01S3/23 ,  H01S3/139

CPC classification number: B23K26/0608 ,  B23K26/06 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/123 ,  H01S3/08059 ,  H01S3/036 ,  H01S3/076 ,  H01S3/08068 ,  H01S3/0975 ,  H01S3/2366

Abstract: A laser system wherein, in order that a high-output and high-quality single mode of a cross sectional area larger than the beam diameter determined by the construction of a resonator can be obtained stably, although this has heretofore been impossible, there is used a coupling mirror provided with a partial reflection film and an antireflecting film, a laser beam mode is selected using the partial reflection film, a phase difference between laser beam portions caused by a difference in construction between the partial reflection film and the antireflecting film is compensated using a phase difference compensating apparatus, and there is formed an aperture whose diameter is set to a value of not larger than four times the diameter of the partial reflection film.

Abstract translation: 一种激光系统，其中为了稳定地获得横截面积大于通过谐振器结构确定的光束直径的高输出和高质量的单一模式，尽管迄今为止已经不可能使用 设置有部分反射膜和抗反射膜的耦合镜，使用部分反射膜选择激光束模式，补偿由部分反射膜和抗反射膜之间的结构差引起的激光束部分之间的相位差 使用相位差补偿装置，形成直径设定为不大于部分反射膜直径的4倍的孔径。

公开(公告)号：US5892789A

公开(公告)日：1999-04-06

申请号：US899889

申请日：1997-07-24

Applicant: Koji Yasui ,  Takafumi Kawai ,  Tetsuo Kojima ,  Susumu Konno

Inventor： Koji Yasui ,  Takafumi Kawai ,  Tetsuo Kojima ,  Susumu Konno

IPC: H01S3/07 ,  H01S3/08 ,  H01S3/091 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/109 ,  H01S3/136 ,  H01S3/16 ,  H01S3/23 ,  H01S3/14

CPC classification number: H01S3/025 ,  H01S3/07 ,  H01S3/10 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/08072 ,  H01S3/093 ,  H01S3/094057 ,  H01S3/0941 ,  H01S3/109

Abstract: A solid-state laser apparatus comprises a plurality of solid-state materials each having an active solid-state medium and arranged in a row with a predetermined space on an optical axis of light incident thereon. An optical rotation material and an angle adjusting instrument for adjusting an angle between the optical rotation material and the optical axis of incident light are disposed in at least a space selected from among the plural spaces. The laser apparatus further comprises a laser optical system for extracting a laser beam emitted by the plural solid-state materials.

Abstract translation: 固体激光装置包括多个固态材料，每个固态材料具有活性固态介质，并且在入射到其上的光的光轴上以预定的空间排成一行。 用于调整光旋转材料与入射光的光轴之间的角度的光学旋转材料和角度调节装置设置在从多个空间中选择的至少一个空间中。 激光装置还包括用于提取由多个固态材料发射的激光束的激光光学系统。

公开(公告)号：US4942588A

公开(公告)日：1990-07-17

申请号：US377774

申请日：1989-07-10

Applicant: Koji Yasui ,  Masaaki Tanaka ,  Masaki Kuzumoto

Inventor： Koji Yasui ,  Masaaki Tanaka ,  Masaki Kuzumoto

IPC: H01S3/034 ,  H01S3/036 ,  H01S3/082

CPC classification number: H01S3/082 ,  H01S3/034 ,  H01S3/036

Abstract: In a laser device employing an optical resonator which is constructed of a total reflection mirror and a partial reflection mirror, a total reflection plane having an opening is interposed between the partial reflection mirror and the total reflection mirror, the total reflection plane may be formed of, for example, a dielectric thin film or a metallic totally-reflective thin film produced with a cluster ion beam, and the total reflection plane and the total reflection mirror are arranged so as to establish a resonant state. The total reflection plane is formed on an aperture of the partial reflection mirror. The opening of the total reflection plane may be ring-shaped, or a plurality of openings may be provided. The total reflection plane may be located centrally. In a laser device employing an unstable optical resonator, a beam deriving mirror may be disposed within the optical resonator.

Abstract translation: 在采用由全反射镜和部分反射镜构成的光学谐振器的激光装置中，在部分反射镜和全反射镜之间插入具有开口的全反射面，全反射面可以由 例如，使用聚簇离子束制造的电介质薄膜或金属全反射薄膜，并且配置全反射面和全反射镜，以便建立共振状态。 全反射面形成在部分反射镜的孔上。 全反射面的开口可以是环状的，也可以设置多个开口。 全反射面可以位于中央。 在采用不稳定光学谐振器的激光装置中，光束衍射反射镜可以设置在光学谐振器内。

公开(公告)号：US4914671A

公开(公告)日：1990-04-03

申请号：US602584

申请日：1984-04-20

Applicant: Shigenori Yagi ,  Koji Yasui ,  Shuji Ogawa ,  Masaki Kuzumoto

Inventor： Shigenori Yagi ,  Koji Yasui ,  Shuji Ogawa ,  Masaki Kuzumoto

IPC: H01S3/098 ,  H01S3/139

CPC classification number: H01S3/0805 ,  H01S3/139

Abstract: A laser device having an infrared laser medium and an aperture member disposed within a resonator in which the mode symmetry is improved. An optical resonator including a total reflecting mirror and a partial reflecting mirror disposed at opposite ends of a gap between electrodes is arranged parallel to an optical axis and orthogonal to a gas flow direction. An aperture member disposed along the optical axis between the mirrors on the side of the partial reflecting mirror has the form of a ring having an axis coinciding with the optical axis. Plural laser beam detecting elements are disposed on the inner peripheral area of the ring. The angular positions of the mirrors are controlled such that a difference in outputs of the detecting elements is minimized.

Abstract translation: 一种具有红外激光介质和设置在谐振器内的孔径构件的激光装置，其中模式对称性得到改善。 包括设置在电极之间的间隙的相对端处的全反射镜和部分反射镜的光学谐振器被平行于光轴布置并且与气体流动方向正交地布置。 在部分反射镜一侧的反射镜之间沿着光轴设置的光阑构件具有与光轴重合的轴的环形。 多个激光束检测元件设置在环的内周区域上。 控制反射镜的角度位置使得检测元件的输出差异最小化。