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61. 发明申请

WO9921250A3 DIODE PUMPED LASER USING GAIN MEDIUMS WITH STRONG THERMAL FOCUSSING 审中-公开
标题翻译：使用具有强热聚焦的增益介质的二极管泵浦激光
公开(公告)号：WO9921250A3
公开(公告)日：1999-09-02
申请号：PCT/US9822340
申请日：1998-10-22
申请人： SPECTRA PHYSICS LASERS INC
发明人： NIGHAN WILLIAM L , KEIRSTEAD MARK S , CHENG EMILY
IPC分类号： H01S3/08 , H01S3/042 , H01S3/094 , H01S3/0941 , H01S3/16
CPC分类号： H01S3/09415 , H01S3/042 , H01S3/08045 , H01S3/0805 , H01S3/08072 , H01S3/1611 , H01S3/1673
摘要： A diode pumped laser includes a resonator mirror and an output coupler, defining a laser resonator with a resonator optical axis. A strong thermal lens gain medium with a TEM00 mode diameter is mounted in the resonator along the resonator optical axis. The dopant level of the gain medium is in the range of 0.01 to less than 0.5 percent. A diode pump source supplies a pump beam to the gain medium in the laser resonator, and produces an output beam with a diameter larger than the TEM00 mode diameter to reduce thermal birefringence. A power source supplies power to the diode pump source. A polarizing element can be positioned in the resonator, along with an aperture stop. The laser operates well over a large range of pump powers. Its slope efficiency in the TEM00 mode is greater than 40 %, with an overall efficiency greater than 25 %. One of the gain mediums used is Nd:YVO4. This material exhibits high gain and a short upper state lifetime. These properties make it attractive in designing a Q-switched laser, or one that is insensitive to optical feedback. Another material is Nd:YAG. The technique of optimizing the pump beam spot size is found to minimize loss due to thermal birefringence.
摘要翻译：二极管泵浦激光器包括谐振器镜和输出耦合器，限定具有谐振器光轴的激光谐振器。谐振器沿着谐振器光轴安装了具有TEM00模式直径的强热透镜增益介质。增益介质的掺杂剂水平在0.01至小于0.5％的范围内。二极管泵浦源将泵浦光束提供给激光谐振器中的增益介质，并产生直径大于TEM00模式直径的输出光束，以减少热双折射。电源为二极管泵浦源供电。偏振元件可以与孔径光阑一起定位在谐振器中。激光器在大范围的泵浦功率下运行良好。其TEM00模式的斜率效率大于40％，总效率大于25％。使用的增益介质之一是Nd：YVO4。该材料具有较高的增益和较短的上限寿命。这些性质使其在设计Q开关激光器或对光学反馈不敏感的激光器方面具有吸引力。另一种材料是Nd：YAG。发现优化泵浦光斑尺寸的技术可以使由于热双折射引起的损耗最小化。

62. 发明申请

WO99021250A2 DIODE PUMPED LASER USING GAIN MEDIUMS WITH STRONG THERMAL FOCUSSING 审中-公开
标题翻译：使用具有强热聚焦的增益介质的二极管泵浦激光
公开(公告)号：WO99021250A2
公开(公告)日：1999-04-29
申请号：PCT/US1998/022340
申请日：1998-10-22
IPC分类号： H01S3/08 , H01S3/042 , H01S3/094 , H01S3/0941 , H01S3/16 , H01S
CPC分类号： H01S3/09415 , H01S3/042 , H01S3/08045 , H01S3/0805 , H01S3/08072 , H01S3/1611 , H01S3/1673
摘要： A diode pumped laser includes a resonator mirror and an output coupler, defining a laser resonator with a resonator optical axis. A strong thermal lens gain medium with a TEM>00 00 00 4
摘要翻译：二极管泵浦激光器包括谐振器镜和输出耦合器，限定具有谐振器光轴的激光谐振器。沿着谐振器光轴，在谐振器中安装具有TEM> 00 <模直径的强热透镜增益介质。增益介质的掺杂剂水平在0.01至小于0.5％的范围内。二极管泵浦源将激光束提供给激光谐振器中的增益介质，并产生直径大于TEM> 00 <模式直径的输出光束，以减少热双折射。电源为二极管泵浦源供电。偏振元件可以与孔径光阑一起定位在谐振器中。激光器在大范围的泵浦功率下运行良好。其TEM> 00 <模式下的斜率效率大于40％，总效率大于25％。使用的增益介质之一是Nd：YVO> 4。该材料具有较高的增益和较短的上限寿命。这些性质使其在设计Q开关激光器或对光学反馈不敏感的激光器方面具有吸引力。另一种材料是Nd：YAG。发现优化泵浦光斑尺寸的技术可以使由于热双折射引起的损耗最小化。

63. 发明申请

WO98048491A2 MULTI-ELEMENT, SINGLE MODE MICROCHIP LASERS 审中-公开
标题翻译：多单元，单模微型激光器
公开(公告)号：WO98048491A2
公开(公告)日：1998-10-29
申请号：PCT/US1998/007552
申请日：1998-04-15
IPC分类号： G02F1/37 , H01S3/06 , H01S3/098 , H01S3/109 , H01S
CPC分类号： H01S3/0627 , G02F1/37 , H01S3/025 , H01S3/0401 , H01S3/042 , H01S3/0604 , H01S3/08004 , H01S3/08036 , H01S3/082 , H01S3/109
摘要： A microchip laser is formed from at least one portion of laser material and at least one nonlinear crystal. The laser material and nonlinear crystal are in physical contact with each other and an angled surface of either the laser material or the nonlinear crystal forms an air-spaced etalon between the laser material and the nonlinear crystal. The axis of the microchip laser passes through the etalon formed between the laser material and the nonlinear crystal. The etalon in the laser cavity produces a single mode output. Additionally, the nonlinear crystal within the cavity may operate, in conjunction with a polarization dependent gain cross section in the laser material, as a birefringent filter to reduce the bandwidth of laser emission from a broadband active laser material.
摘要翻译：微芯片激光器由激光材料的至少一部分和至少一个非线性晶体形成。激光材料和非线性晶体彼此物理接触，激光材料或非线性晶体的成角度的表面在激光材料和非线性晶体之间形成空气间的标准具。微芯片激光器的轴线穿过形成在激光材料和非线性晶体之间的标准具。激光腔中的标准具产生单模输出。此外，腔内的非线性晶体结合激光材料中的偏振相关的增益截面可以作为双折射滤光器来工作，以减少宽带有源激光材料的激光发射带宽。

64. 发明申请

WO1997042689A2 SCALABLE ACTIVE MIRROR LIGHT AMPLIFIER SYSTEM 审中-公开
标题翻译：可调式有源镜子光放大器系统
公开(公告)号：WO1997042689A2
公开(公告)日：1997-11-13
申请号：PCT/US1997007226
申请日：1997-04-30
申请人： MCDONNELL DOUGLAS CORPORATION , MORRIS, Henry, B.
发明人： MCDONNELL DOUGLAS CORPORATION
IPC分类号： H01S00/00
CPC分类号： H01S3/2316 , H01S3/02 , H01S3/042 , H01S3/07 , H01S3/0941
摘要： An active mirror laser amplifier section (10) has a number of active mirror amplifier modules (30) connected together in a continuous ring. Each of the active mirror amplifier modules (30) has an active mirror (12). An input optical section (22) receives an input light (20). The input optical section (22) directs the input light (20) toward the active mirror (12) of a first of the active mirror amplifier modules (30). The input light (20) is reflected from the active mirror (12) of the first of the active mirror amplifier modules (30) to the active mirror (12) of a second of the active mirror amplifier modules (30).
摘要翻译：有源镜激光放大器部分（10）具有以连续环连接在一起的多个有源反射镜放大器模块（30）。每个有源反射镜放大器模块（30）具有主动反射镜（12）。输入光学部分（22）接收输入光（20）。输入光学部分（22）将输入光（20）引导到第一有源反射镜放大器模块（30）的有源反射镜（12）。输入光（20）从第一有源反射镜放大器模块（30）的有源反射镜（12）反射到第二有源反射镜放大器模块（30）的有源反射镜（12）。

65. 发明申请

WO1997023932A1 MULTI-ELEMENT MONOLITHIC SOLID STATE LASER 审中-公开
标题翻译：多单元固体激光器
公开(公告)号：WO1997023932A1
公开(公告)日：1997-07-03
申请号：PCT/US1996020055
申请日：1996-12-20
申请人： ATX TELECOM SYSTEMS, INC.
发明人： ATX TELECOM SYSTEMS, INC. , ANTHON, Douglas, W. , MUNKS, Timothy, C.
IPC分类号： H01S03/08
CPC分类号： H01S3/0627 , H01S3/025 , H01S3/0404 , H01S3/042 , H01S3/0604 , H01S3/08031 , H01S3/08054 , H01S3/08072 , H01S3/082 , H01S3/09415 , H01S3/1608 , H01S3/1698 , H01S3/175
摘要： A monolithic solid state laser structure is used to construct erbium lasers that are insensitive to external pressure changes and vibrations, and have improved cooling of the gain medium (20) and reduced thermal lensing effect. In the monolithic laser structure, the gain medium (20) is separated from an optically transmissive plate (24) on one side and a wave plate (21) on the other side by spacers to form narrow air gaps (31 and 33) which provide effective cooling of the gain medium (20) and reduced the thermal lensing effect. Such an arrangement is further combined with a pressure-insensitive brewster polarizer such as a solid brewster polarizer (42 and 46), or a pressure-sealed brewster plate (249), to form a pressure-insensitive laser cavity. The wave plate (2') cooperates with the brewster polarizer (42 and 46) to select the wavelength of the solid state laser.
摘要翻译：使用单片固体激光器结构来构造对外部压力变化和振动不敏感的铒激光器，并且改善了增益介质（20）的冷却并降低了热透镜效应。在单片激光器结构中，增益介质（20）通过间隔件从一侧的光学透射板（24）和另一侧的波片（21）分离，以形成狭窄的气隙（31和33），其提供增益介质（20）的有效冷却并降低热透镜效应。这种布置进一步与诸如固体布鲁斯特偏振器（42和46）或压力密封的布鲁斯特板（249）之类的压敏不敏感的布鲁斯特偏振器组合，以形成不敏感的激光腔。波片（2'）与布鲁斯特偏振器（42和46）配合以选择固态激光器的波长。

66. 发明申请

WO1997014200A1 COMPACT DIODE PUMPED SOLID STATE LASER 审中-公开
标题翻译：紧凑型二极管泵浦固体激光器
公开(公告)号：WO1997014200A1
公开(公告)日：1997-04-17
申请号：PCT/US1996016255
申请日：1996-10-09
申请人： HE HOLDINGS, INC. doing business as HUGHES ELECTRONICS
发明人： HE HOLDINGS, INC. doing business as HUGHES ELECTRONICS , GREGOR, Eduard , CHEN, Tzeng , BRUESSELBACH, Hans, W.
IPC分类号： H01S03/0941
CPC分类号： H01S3/0941 , H01S3/025 , H01S3/042 , H01S3/061 , H01S3/0612 , H01S3/0625 , H01S3/08059 , H01S3/08072 , H01S3/094084
摘要： A compact diode pumped laser including a nonuniform, single- or double-sided diode pumped laser head (11, 31) and a polarization output coupled (POC) resonator (70). The POC resonator (70) employs reflections from two opposing uncrossed roof prism mirrors (61, 71) to produce a uniform near field and far field beam with diffraction or near diffraction limited quality. The single laser head (11) particularly includes a laser rod (21), a sapphire envelope (19) located about the rod (21), an area (17) of antireflection coating located on the sapphire envelope (19) between the rod (21) and the diode array (15), and a high reflectivity nickel-plated indium layer (18) located on the sapphire envelope (19) on the surface thereof outside of the area (17) of antireflection coating.
摘要翻译：一种紧凑型二极管泵浦激光器，包括不均匀的单面或双面二极管泵浦激光头（11,31）和极化输出耦合（POC）谐振器（70）。 POC谐振器（70）使用来自两个相对的未交叉屋顶棱镜反射镜（61,71）的反射，以产生具有衍射或近衍射限制质量的均匀近场和远场光束。单个激光头（11）特别地包括激光棒（21），围绕杆（21）定位的蓝宝石外壳（19），位于蓝宝石外壳（19）之间的防反射涂层区域（17） 21）和二极管阵列（15），以及位于防反射涂层区域（17）的表面上的蓝宝石外壳（19）上的高反射率镀镍铟层（18）。

67. 发明申请

WO1996036095A1 MONOLITHIC LASER 审中-公开
标题翻译：单光子激光
公开(公告)号：WO1996036095A1
公开(公告)日：1996-11-14
申请号：PCT/GB1995001897
申请日：1995-08-11
申请人： I.E. OPTOMECH LTD.
发明人： I.E. OPTOMECH LTD. , MACKINNON, Neil
IPC分类号： H01S03/06
CPC分类号： H01S3/0627 , H01S3/0401 , H01S3/0405 , H01S3/042 , H01S3/0604 , H01S3/106 , H01S3/109
摘要： A laser comprising a laser cavity (13) having reflectors at each end of an optical path, a first layer of gain material (15) and a second layer of a second material (14, 16) disposed along the optical path, wherein the first and second layers are directly optically contacted to one another at associated faces. Also, a laser comprising a laser cavity having a layer of gain material (15), and second and third crystals (14, 16) having anisotropic refractive indices disposed along an optical path, the laser being oscillatory in a preferred mode having a particular orientation of polarisation, the second crystal (16) being oriented with respect to the path to cause no appreciable net depolarisation of the preferred mode, and the third crystal (14) being arranged such that the preferred mode is transmittable therethrough with minimal refraction.
摘要翻译：一种激光器，包括在光路的每一端具有反射器的激光腔（13），沿光路设置的第一增益材料层（15）和第二材料层（14,16）的第二层，其中第一并且第二层在相关联的面处彼此直接光学接触。此外，激光器包括具有增益材料层（15）的激光腔和具有沿光路设置的各向异性折射率的第二和第三晶体（14,16），所述激光器以具有特定取向的优选模式振荡第二晶体（16）相对于路径取向，不会引起优选模式的明显的去极化，并且第三晶体（14）被布置成使得优选的模式以最小的折射透射通过。

68. 发明申请

WO1995020832A1 OPTICALLY PUMPED LASER APPARATUS 审中-公开
标题翻译：光学抽吸激光装置
公开(公告)号：WO1995020832A1
公开(公告)日：1995-08-03
申请号：PCT/US1995000546
申请日：1995-01-24
申请人： YEDA RESEARCH AND DEVELOPMENT CO., LTD. , RYCUS, Avigail
发明人： YEDA RESEARCH AND DEVELOPMENT CO., LTD. , RYCUS, Avigail , YOGEV, Amnon , KRUPKIN, Vladimir
IPC分类号： H01S03/091
CPC分类号： H01S3/042 , H01S3/091 , H01S3/094038
摘要： A laser apparatus of the end pumping kind in which an elongated transparent laser element (1) is mounted in spaced relationship within a tubular waveguide (2) which has a highly reflective inner surface (3). The arrangement is such that, at least along part of the laser element (1), the optical distances between different points on the surface of the laser element and the inner contour of the waveguide vary.
摘要翻译：一种端部泵送类型的激光装置，其中细长的透明激光元件（1）以间隔的关系安装在具有高反射性内表面（3）的管状波导（2）内。该布置使得至少沿着激光元件（1）的一部分，激光元件的表面上的不同点与波导的内部轮廓之间的光学距离变化。

69. 发明申请

WO2019123516A1 レーザ装置、ＥＵＶ光生成システム、及び電子デバイスの製造方法审中-公开
公开(公告)号：WO2019123516A1
公开(公告)日：2019-06-27
申请号：PCT/JP2017/045325
申请日：2017-12-18
申请人：ギガフォトン株式会社
发明人：野極　誠二
IPC分类号： H01S3/131 , H01S3/042 , H01S3/0941
CPC分类号： H01S3/042 , H01S3/0941 , H01S3/131
摘要：本開示によるレーザ装置は、励起光を出力する励起光源と、励起光の光路上に配置されたレーザ結晶と、レーザ結晶を透過した後の透過励起光の光路上に配置され、透過励起光をモニタする第１のモニタ装置と、温度指令値に基づいて、励起光源の温度を一定の温度となるように調節する温調装置と、第１のモニタ装置のモニタ結果に基づいて温度指令値を変更するコントローラとを備える。

70. 发明申请

WO2018233799A1 PASSIVE COMPENSATION OF CONVECTION-INDUCED MISALIGNMENT IN OPTICAL RESONATORS 审中-公开
公开(公告)号：WO2018233799A1
公开(公告)日：2018-12-27
申请号：PCT/EP2017/000722
申请日：2017-06-21
申请人： UNIVERSITÄT STUTTGART
发明人： DIETRICH, Tom , PIEHLER, Stefan , RÖCKER, Christoph
IPC分类号： H01S3/08 , H01S3/081 , H01S3/04 , H01S3/16 , H01S3/042 , H01S3/06
CPC分类号： H01S3/0404 , H01S3/0405 , H01S3/042 , H01S3/0604 , H01S3/08045 , H01S3/08072 , H01S3/0812 , H01S3/0817 , H01S3/1618 , H01S3/1631
摘要： Optical resonator (1) for guiding a light in a laser cavity between a first cavity end mirror (2) and a second cavity end mirror (3) such that within the laser cavity the light passes through a light transmission surface (4) between a gain element (5) and a gaseous phase (6) where a density gradient of gas in the gaseous phase along the transmission surface (4) due to convection of the gas driven by heating of the gain element (5) causes a refraction of the light within a light deviation plane, the optical resonator (1) comprising: - the first cavity end mirror (2); - the gain element (5) comprising a laser gain medium (7) supporting stimulated emission of light at a wavelength λ L ; and - the second cavity end mirror (3) comprising a grating surface (8) with a diffraction grating (9) having a plurality of parallel grating lines (10) arranged at a grating period Λ, wherein the second cavity end mirror (3) is arranged to fulfil the following conditions: -- light within the light deviation plane enters the grating surface (8) in a light incident plane perpendicular to the grating surface (8); -- the grating lines (10) are perpendicular to the light incident plane; and -- an incident angle θ L (11) of the light at the grating surface (8) meets the condition (A) for a diffraction order (B).

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