公开(公告)号：US08014433B2

公开(公告)日：2011-09-06

申请号：US12246674

申请日：2008-10-07

Applicant: Zhijiang Wang ,  Ying Wang

Inventor： Zhijiang Wang ,  Ying Wang

IPC: H01S3/091

CPC classification number: H01S3/0604 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/061 ,  H01S3/0621 ,  H01S3/07 ,  H01S3/08068 ,  H01S3/094084 ,  H01S3/09415

Abstract: A large number of passes of pump light through an active mirror in a solid state disk laser is realized using a pair of coupled imaging systems, where the optical axes of imaging systems are not coincident. Two imaging systems are optically coupled, so that an image of the first imaging system is an object of the second imaging system, and vice versa. An active mirror is disposed at the object or image plane, or at the focal plane of any one of the coupled imaging systems, where the position of the reflected pump beam during the multi-reflection between the first and second imaging systems is substantially unchanged.

Abstract translation: 使用一对耦合的成像系统实现在固态盘激光器中通过主动反射镜的大量泵浦光通过，其中成像系统的光轴不重合。 两个成像系统被光学耦合，使得第一成像系统的图像是第二成像系统的对象，反之亦然。 有源反射镜设置在物体或像平面处或耦合成像系统中的任何一个的焦平面处，其中反射的泵浦光束在第一和第二成像系统之间的多反射期间的位置基本上不变。

公开(公告)号：US20110058579A1

公开(公告)日：2011-03-10

申请号：US12991271

申请日：2009-05-21

Applicant: Yoshiyuki Ohtake ,  Haruyasu Ito ,  Taro Ando ,  Takashi Inoue ,  Naoya Matsumoto ,  Norihiro Fukuchi

Inventor： Yoshiyuki Ohtake ,  Haruyasu Ito ,  Taro Ando ,  Takashi Inoue ,  Naoya Matsumoto ,  Norihiro Fukuchi

IPC: H01S3/139

CPC classification number: H01S3/08045 ,  H01S3/0805 ,  H01S3/08059 ,  H01S3/08068 ,  H01S3/105 ,  H01S2301/203

Abstract: A laser light source 1 is provided with an output mirror 11, a laser medium 12, a light beam diameter adjuster 13, an aperture 14, a reflection mirror 15, a drive unit 21, and a control unit 22, and outputs laser oscillation light 31 from the output mirror 11 to the outside. The laser resonator is configured so that the reflection mirror 15 and the output mirror 11 are disposed so as to be opposed to each other with the laser medium 12 placed therebetween. The reflection mirror 15 is configured such that it gives amplitude or phase variations to respective positions in the section of a light beam when the light is reflected, and the reflection mirror presents a amplitude or phase variation distribution in accordance with control from the outside, and determines the transverse mode of the laser oscillation light 31 based on the amplitude or phase variation distribution. Thus, a laser light source capable of easily controlling the transverse mode of the laser oscillation light can be realized.

Abstract translation: 激光光源1设置有输出镜11，激光介质12，光束直径调节器13，孔14，反射镜15，驱动单元21和控制单元22，并且输出激光振荡光 31从输出镜11到外部。 激光谐振器被配置为使得反射镜15和输出反射镜11被布置成使激光介质12放置在它们之间彼此相对。 反射镜15被构造成使得当光被反射时，其在光束的部分中的相应位置产生振幅或相位变化，并且反射镜根据来自外部的控制呈现幅度或相位变化分布，以及 基于振幅或相位变化分布确定激光振荡光31的横向模式。 因此，可以实现能够容易地控制激光振荡光的横向模式的激光源。

公开(公告)号：US20110044361A1

公开(公告)日：2011-02-24

申请号：US12804574

申请日：2010-07-23

Applicant: Adolf Giesen ,  Gerhard Spindler ,  Thomas Hall ,  Jochen Speiser ,  Jens Mende

Inventor： Adolf Giesen ,  Gerhard Spindler ,  Thomas Hall ,  Jochen Speiser ,  Jens Mende

IPC: H01S3/13 ,  H01S3/06

CPC classification number: H01S3/0604 ,  G02B26/06 ,  G02B26/0825 ,  H01S3/0405 ,  H01S3/0621 ,  H01S3/07 ,  H01S3/08068 ,  H01S3/08072 ,  H01S3/0817 ,  H01S3/0818 ,  H01S3/094084 ,  H01S3/105 ,  H01S2301/203

Abstract: In order to improve a solid-state laser, in particular a solid-state disc laser, comprising a resonator (40) that defines a resonator radiation field (30) and at least one solid-state disc (12) with the resonator radiation field (30) passing through it, in such a manner that the thermal lens effect can be at least substantially compensated, it is proposed that in reflection the resonator radiation field (30) strikes at least one first adaptive mirror unit (50, 70), with which a distortion of the resonator radiation field (30) as a result of a thermal lens effect of the at least one solid-state disc (12) can be substantially compensated. An adaptive mirror unit (50) can be configured by a heated (58a, 58b) glass sheet (54) with an HR layer (52), for example, or by a pressure-induced deformation by means a fluid (78) in a space (76), which is enclosed with the mirror (72, 74).

Abstract translation: 为了改进固态激光器，特别是固态光盘激光器，其包括限定谐振器辐射场的谐振器（40）和至少一个具有谐振器辐射场的固态光盘（12） （30）通过它，使得至少可以基本上补偿热透镜效应的方式，提出在谐振器辐射场（30）反射至少一个第一自适应反射镜单元（50,70）的反射中， 由此可以基本上补偿作为至少一个固态盘（12）的热透镜效应的结果的谐振器辐射场（30）的失真。 自适应反射镜单元（50）可以由加热的（58a，58b）玻璃板（54）与HR层（52）构成，或者通过压力引起的变形，通过在 空间（76），其被反射镜（72,74）包围。

公开(公告)号：US06785305B1

公开(公告)日：2004-08-31

申请号：US09077957

申请日：1998-06-12

Applicant: Manfred Gabbert ,  Wolfgang Reinecke

Inventor： Manfred Gabbert ,  Wolfgang Reinecke

IPC: H01S310

CPC classification number: H01S5/14 ,  G01J3/10 ,  G01J3/4338 ,  H01S3/08036 ,  H01S3/0805 ,  H01S3/08068 ,  H01S3/0815 ,  H01S3/105 ,  H01S5/02292 ,  H01S5/02296

Abstract: The preferably highly antireflection coated facet of a laser chip is imaged by an optical system onto a reflector, as a result of which the adjustment tolerance is substantially increased by the cat's eye effect and, since the optical system is provided with a high longitudinal chromatic aberration, the wavelength can be tuned by shifting given parts of the total system relative to other parts of the total system. In this way a tunable semiconductor laser light source which is free from mode jumps and has at most two adjustable degrees of freedom can be produced.

Abstract translation: 通过光学系统将激光芯片的优选高抗反射涂层刻面成像到反射器上，结果通过猫的眼睛效应显着增加了调整容限，并且由于光学系统具有高纵向色差 ，可以通过将总系统的给定部分相对于总系统的其他部分移动来调整波长。 以这种方式，可以产生无模式跳变并且具有至多两个可调整自由度的可调谐半导体激光光源。

公开(公告)号：US20040156455A1

公开(公告)日：2004-08-12

申请号：US10651401

申请日：2003-08-29

Inventor： Charles D. Hoke ,  Russell W. Gruhlke

IPC: H04L027/08

CPC classification number: H01S3/08068 ,  H01S3/08027 ,  H01S3/08031 ,  H01S3/105 ,  H01S5/141

Abstract: An external cavity laser includes an optical gain medium in the cavity of the external cavity laser. The optical gain medium is capable of emitting light over a range of wavelengths. The external cavity laser further includes a diffractive focusing element including a central radial portion and a peripheral radial portion. The central radial portion has a dispersivity less than a threshold, and the peripheral radial portion has a dispersivity greater than the threshold. The diffractive focusing element is operable to diffractively focus the light back into the optical gain medium at differing wavelength-dependent focal distances. The external cavity laser further includes means for confining the diffractive focusing of the light to the peripheral radial portion of the diffractive focusing element. In various embodiments, the means for confining includes a central obscuration and/or a radial offset of the diffractive focusing element.

Abstract translation: 外腔激光器包括在外腔激光器的空腔中的光学增益介质。 光学增益介质能够在一定波长范围内发射光。 外腔激光器还包括包括中心径向部分和外周径向部分的衍射聚焦元件。 中心径向部分具有小于阈值的分散度，并且周边径向部分具有大于阈值的分散性。 衍射聚焦元件可操作以将光以不同的依赖于波长的焦距衍射地聚焦到光学增益介质中。 外腔激光器还包括用于将光的衍射聚焦限制在衍射聚焦元件的周向径向部分的装置。 在各种实施例中，用于限制的装置包括衍射聚焦元件的中心遮蔽和/或径向偏移。

公开(公告)号：US06553050B1

公开(公告)日：2003-04-22

申请号：US10081883

申请日：2002-02-21

Applicant: Juergen Kleinschmidt ,  Peter Lokai

Inventor： Juergen Kleinschmidt ,  Peter Lokai

IPC: H01S322

CPC classification number: H01S3/08068 ,  H01S3/0805 ,  H01S3/105 ,  H01S3/225

Abstract: An excimer or molecular fluorine laser includes a discharge chamber filled with a gas mixture, multiple electrodes within the discharge chamber connected to a power supply circuit for energizing the gas mixture, and a resonator including the discharge chamber and a pair of resonator reflectors for generating an output laser beam. The resonator includes an interferometric device, which may be a resonator reflector such as an output coupling interferometer or HR reflector, or a transmissive intracavity component, including a pair of opposing reflecting surfaces tuned to produce a response maximum at a selected wavelength for narrowing a linewidth of the output laser beam. One of the pair of opposing reflecting surfaces is preferably configured such that the opposing reflecting surfaces of the interferometer have a varying optical distance therebetween over an incident beam cross-section which serves to suppress at least one side band or outer portions of the response maximum to reduce spectral purity. Preferably, this surface is non-planar, and may include a step, a recess or a raised or recessed curved portion of a quarter wavelength in height or depth, respectively, and may be cylindrical, Gaussian or spherical, and the curvature may extend over the entire reflecting surface or diameter of the incident beam. The curved surface may be part of a component that couples with a base optical block at a surface opposing the other reflecting surface, such as by a slot defined in the optical block or using an adhesive.

Abstract translation: 准分子或分子氟激光器包括填充有气体混合物的放电室，放电室内的多个电极连接到用于激励气体混合物的电源电路，以及包括放电室的谐振器和一对谐振器反射器，用于产生 输出激光束。 谐振器包括干涉仪，其可以是谐振器反射器，例如输出耦合干涉仪或HR反射器，或透射腔内分量，包括一对相对的反射表面，其被调谐以在选定波长处产生响应最大值以使线宽变窄 的输出激光束。 一对相对的反射表面中的一个优选地被配置为使得干涉仪的相对的反射表面在入射光束横截面之间具有变化的光学距离，其用于抑制响应最大值的至少一个边带或外部部分 降低光谱纯度。 优选地，该表面是非平面的，并且可以分别包括高度或深度为四分之一波长的台阶，凹陷或凸起或凹陷的弯曲部分，并且可以是圆柱形，高斯或球形，并且曲率可以延伸超过 入射光束的整个反射面或直径。 弯曲表面可以是组件的一部分，其在与另一个反射表面相对的表面处与基底光学块耦合，例如通过在光学块中限定的狭槽或使用粘合剂。

公开(公告)号：US06442187B1

公开(公告)日：2002-08-27

申请号：US09674515

申请日：2001-02-16

Applicant: Alexander Ivanovich Dutov ,  Alexey Alexeevich Kuleshov ,  Nikolay Alexeevich Novoselov ,  Alexander Alexandrovich Sokolov

Inventor： Alexander Ivanovich Dutov ,  Alexey Alexeevich Kuleshov ,  Nikolay Alexeevich Novoselov ,  Alexander Alexandrovich Sokolov

IPC: H01S304

CPC classification number: H01S3/0315 ,  H01S3/0385 ,  H01S3/041 ,  H01S3/073 ,  H01S3/076 ,  H01S3/08 ,  H01S3/08068 ,  H01S3/08081 ,  H01S3/0815 ,  H01S3/0818

Abstract: The present invention relates to laser devices with increased cooling capability by means of largely extended cooling surfaces contacting the laser active medium. According to the present invention there is provided a laser device comprising a large active volume in conjunction with a compact structure of the device and outputting single mode radiation. The laser device according to the present invention comprises the following features. A laser active medium, an optical resonator system defining an optical axis, exciting means for exciting said laser active medium and enabling a stimulated emission of radiation of said laser active medium, and cooling means, having first and second cooling elements arranged in spaced opposing relationship with surfaces facing each other, wherein said laser active medium is provided between said cooling elements along said optical axis. In order to increase the output power and to obtain single mode radiation an optical element is provided, arranged within the optical path formed by said optical resonator system and having a refractive power in a first plane, along said optical axis and perpendicular to said surfaces, differing from a refractive power in a second plane, along the optical axis and perpendicular to said first plane, wherein a contact of a laser beam deflected in said first plane with said surfaces of said first and second cooling elements is avoided.

Abstract translation: 本发明涉及通过与激光活性介质接触的大量延长的冷却表面来提高冷却能力的激光装置。 根据本发明，提供一种激光装置，其包括与该装置的紧凑结构相结合的大的有效容积并输出单模辐射。 根据本发明的激光装置包括以下特征。 激光活性介质，限定光轴的光学谐振器系统，用于激发所述激光活性介质并使能受激发射的所述激光活性介质的激励装置和冷却装置，其具有以间隔开的对置关系布置的第一和第二冷却元件 其中表面彼此面对，其中所述激光活性介质沿着所述光轴设置在所述冷却元件之间。 为了增加输出功率并获得单模辐射，光学元件设置在由所述光学谐振器系统形成的光路内，并沿着所述光轴并且垂直于所述表面具有在第一平面中的折射光焦度， 不同于第二平面中的屈光力，沿着光轴并垂直于所述第一平面，其中避免了在所述第一平面中偏转的激光束与所述第一和第二冷却元件的所述表面的接触。

公开(公告)号：US5844932A

公开(公告)日：1998-12-01

申请号：US633361

申请日：1996-04-17

Applicant: Philippe Thony ,  Marc Rabarot

Inventor： Philippe Thony ,  Marc Rabarot

IPC: H01S3/06 ,  H01S3/10 ,  H01S3/113 ,  H01S3/08

CPC classification number: H01S3/0627 ,  H01S3/113 ,  H01S3/0602 ,  H01S3/0615 ,  H01S3/08063 ,  H01S3/08068 ,  H01S3/10092 ,  H01S3/1061

Abstract: Microlaser cavity and externally controlled, passive switching, pulses solid microlaser including a saturable absorber 46 and a device (60, 62) for introducing a beam 56 into the microlaser cavity initiating or starting saturation of the saturable absorber.

Abstract translation: 微激光器腔和外部控制的被动切换，包括可饱和吸收器46的脉冲固体微激光器和用于将光束56引入微激光器腔的器件（60,62），引发或开始饱和吸收体的饱和。

公开(公告)号：US5431804A

公开(公告)日：1995-07-11

申请号：US235501

申请日：1994-04-29

Applicant: Luis X. Caballero

Inventor： Luis X. Caballero

IPC: C25D3/56 ,  G02B5/08 ,  H01S3/08 ,  C25B1/00 ,  C25B11/04

CPC classification number: H01S3/08068 ,  C25D3/562 ,  G02B5/08

Abstract: A crystalline ternary alloy of nickel, cobalt and boron has been found to have multiple uses. The alloy has a composition of, by weight, 50-75% nickel, 25-50% cobalt, and 1-5% boron. Structurally, the alloy consists of 50-75% Ni.sub.2 B crystals and 25-50% Co.sub.2 B crystals contained in a matrix of nickel cobalt. The alloy has been found to have high catalytic capabilities and decreases the energy requirements for the electrolytic production of gasses such as hydrogen and halogens. The alloy also has good magnetic properties indicating that it can be used as a coating for a magnetic data storage media, or a thin film for a read/write head which writes to and reads from the magnetic storage media. The alloy has a magnetorestrictive coefficient that is substantially zero or negative, a magnetic saturation where 4piM.sub.s is greater than 20 KGauss, a coercivity of approximately 1.24, an anisotropy of 3.74, and a magnetic permiability in excess of 1000.

Abstract translation: 已经发现镍，钴和硼的结晶三元合金具有多种用途。 该合金具有重量百分比为50-75％的镍，25-50％的钴和1-5％的硼的组成。 在结构上，合金由镍钴基质中包含的50-75％Ni2B晶体和25-50％Co2B晶体组成。 已经发现该合金具有高催化能力并且降低了诸如氢气和卤素的气体的电解生产的能量需求。 该合金还具有良好的磁特性，表明它可以用作磁数据存储介质的涂层，或者写入磁存储介质并从其读取的读/写头的薄膜。 该合金具有基本为零或负的磁致伸缩系数，其中4piMs大于20KGauss的磁饱和，约1.24的矫顽力，3.74的各向异性和超过1000的磁性可容许性。

公开(公告)号：US5359616A

公开(公告)日：1994-10-25

申请号：US114086

申请日：1993-08-31

Applicant: Koji Yasui ,  Tetsuo Kojima ,  Takashi Yamamoto ,  Akira Ishimori ,  Kuniaki Iwashiro

Inventor： Koji Yasui ,  Tetsuo Kojima ,  Takashi Yamamoto ,  Akira Ishimori ,  Kuniaki Iwashiro

IPC: H01S3/06 ,  B23K26/06 ,  H01S3/04 ,  H01S3/042 ,  H01S3/07 ,  H01S3/08 ,  H01S3/093 ,  H01S3/0941 ,  H01S3/105 ,  H01S3/23 ,  H01S3/14

CPC classification number: H01S3/0931 ,  B23K26/0622 ,  H01S2301/20 ,  H01S2301/206 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/061 ,  H01S3/0617 ,  H01S3/07 ,  H01S3/08 ,  H01S3/08063 ,  H01S3/08068 ,  H01S3/08072 ,  H01S3/08081 ,  H01S3/0941 ,  H01S3/23 ,  H01S3/2308

Abstract: A solid state laser apparatus is provided to generate a high quality and high power laser beam, and a laser machining apparatus is provided to perform laser machining by a laser beam generated from the solid state laser apparatus. In the solid state laser apparatus, a laser resonator includes a solid state component cooled in a cylindrical pipe by contacting liquid which is introduced through an inflow opening and discharged through an outflow opening, the solid state component having larger refractive index than that of the liquid, a light source turned ON by a power source to excite the solid state component, and an optical system transmitting light from the light source to the solid state component. Further, a surface roughness of the solid state component is adjusted so as to adjust an excitation distribution in a section of the solid state component. The solid state component further includes moving means for moving a reflection mirror and a condensing lens in a direction of an optical axis of the laser resonator, and a housing accommodating an image transferring optical system. A laser beam is generated from the laser resonator, and is externally derived and used to perform the laser machining.

Abstract translation: 提供固体激光装置以产生高质量和高功率的激光束，并且提供激光加工装置以通过由固态激光装置产生的激光束进行激光加工。 在固体激光装置中，激光谐振器包括通过使通过流入开口引入并通过流出开口排出的液体接触在圆筒形管中冷却的固态成分，固体成分的折射率比液体的折射率大 通过电源将光源接通以激发固体成分，以及将光从光源透射到固体成分的光学系统。 此外，调整固体成分的表面粗糙度，以调整固体成分的截面中的激发分布。 固态分量还包括用于在激光谐振器的光轴的方向上移动反射镜和聚光透镜的移动装置，以及容纳图像转印光学系统的壳体。 从激光谐振器产生激光束，并从外部衍生并用于执行激光加工。