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1. 发明授权

US5615043A Multi-pass light amplifier 失效
标题翻译：多通道光放大器
公开(公告)号：US5615043A
公开(公告)日：1997-03-25
申请号：US979576
申请日：1993-05-07
申请人： Henry Plaessmann , William M. Grossman
发明人： Henry Plaessmann , William M. Grossman
IPC分类号： H01S3/0941 , H01S3/23 , H01S3/081 , H01S3/0933
CPC分类号： H01S3/2325 , H01S3/005 , H01S3/08068 , H01S3/09415
摘要： A multiple-pass laser amplifier that uses optical focusing between subsequent passes through a single gain medium so that a reproducibly stable beam size is achieved within the gain region. A confocal resonator or White Cell resonator is provided, including two or three curvilinearly shaped mirrors facing each other along a resonator axis and an optical gain medium positioned on the resonator axis between the mirrors (confocal resonator) or adjacent to one of the mirrors (White Cell). In a first embodiment, two mirrors, which may include adjacent lenses, are configured so that a light beam passing through the gain medium and incident on the first mirror is reflected by that mirror toward the second mirror in a direction approximately parallel to the resonator axis. A light beam translator, such as an optical flat of transparent material, is positioned to translate this light beam by a controllable amount toward or away from the resonator axis for each pass of the light beam through the translator. The optical gain medium may be solid-state, liquid or gaseous medium and may be pumped longitudinally or transversely. In a second embodiment, first and second mirrors face a third mirror in a White Cell configuration, and the optical gain medium is positioned at or adjacent to one of the mirrors. Defocusing means and optical gain medium cooling means are optionally provided with either embodiment, to controllably defocus the light beam, to cool the optical gain medium and to suppress thermal lensing in the gain medium.
摘要翻译：一种多遍激光放大器，其在后续通过单个增益介质之间使用光学聚焦，使得在增益区域内实现可再现的稳定的光束尺寸。提供共焦共振器或白电池谐振器，包括沿着谐振器轴线彼此面对的两个或三个曲线形状的反射镜和位于反射镜之间的谐振器轴上的光学增益介质（共焦共振器）或与其中一个反射镜相邻（白色细胞）。在第一实施例中，可以包括相邻透镜的两个反射镜被配置为使得通过增益介质并且入射在第一反射镜上的入射到第一反射镜的光束被反射镜朝向第二反射镜在大致平行于谐振器轴的方向上反射。定位光束平移器，例如透明材料的光学平面，以使光束通过可调量量朝向或远离谐振器轴线移动，以使光束通过翻译器的每次通过。光学增益介质可以是固态，液态或气态介质，并且可以纵向或横向泵送。在第二实施例中，第一和第二反射镜面对白色单元配置中的第三反射镜，并且光学增益介质位于或邻近其中一个反射镜。散焦装置和光学增益介质冷却装置可选地设置有任一实施例，以可控地散焦光束，冷却光学增益介质并抑制增益介质中的热透镜。

2. 发明授权

US5546222A Multi-pass light amplifier 失效
公开(公告)号：US5546222A
公开(公告)日：1996-08-13
申请号：US79640
申请日：1993-06-18
申请人： Henry Plaessmann , William M. Grossman , Todd E. Olson
发明人： Henry Plaessmann , William M. Grossman , Todd E. Olson
IPC分类号： H01S3/23 , H01S5/40 , H01S5/50 , H01S3/091 , H01S3/08
CPC分类号： H01S3/2325 , H01S3/005 , H01S3/08068 , H01S3/09415 , H01S5/4025 , H01S5/5018
摘要： A multiple-pass laser amplifier that uses optical focusing between subsequent passes through a single gain medium so that a reproducibly stable beam size is achieved within the gain region. A resonator or a White Cell cavity is provided, including two or more mirrors (planar or curvilinearly shaped) facing each other along a resonator axis and an optical gain medium positioned on a resonator axis between the mirrors or adjacent to one of the mirrors. In a first embodiment, two curvilinear mirrors, which may include adjacent lenses, are configured so that a light beam passing through the gain medium and incident on the first mirror is reflected by that mirror toward the second mirror in a direction approximately parallel to the resonator axis. A light beam translator, such as an optical flat of transparent material, is positioned to translate this light beam by a controllable amount toward or away from the resonator axis for each pass of the light beam through the translator. A second embodiment uses two curvilinear mirrors and one planar mirror, with a gain medium positioned in the optical path between each curvilinear mirror and the planar mirror. A third embodiment uses two curvilinear mirrors and two planar mirrors, with a gain medium positioned adjacent to a planar mirror. A fourth embodiment uses a curvilinear mirror and three planar mirrors, with a gain medium positioned adjacent to a planar mirror. A fourth embodiment uses four planar mirrors and a focusing lens system, with a gain medium positioned between the four mirrors. A fifth embodiment uses first and second planar mirrors, a focusing lens system and a third mirror that may be planar or curvilinear, with a gain medium positioned adjacent to the third mirror. A sixth embodiment uses two planar mirrors and a curvilinear mirror and a fourth mirror that may be planar or curvilinear, with a gain medium positioned adjacent to the fourth mirror. In a seventh embodiment, first and second mirrors face a third mirror, all curvilinear, in a White Cell configuration, and a gain medium is positioned adjacent to one of the mirrors.

3. 发明授权

US06697391B2 Intracavity resonantly enhanced fourth-harmonic generation using uncoated brewster surfaces 有权
标题翻译：使用未涂布的布鲁斯特表面进行腔内共振增强的四次谐波生成
公开(公告)号：US06697391B2
公开(公告)日：2004-02-24
申请号：US10113921
申请日：2002-03-28
申请人： William M. Grossman , Jeffrey D. Kmetec
发明人： William M. Grossman , Jeffrey D. Kmetec
IPC分类号： H01S310
CPC分类号： H01S3/109
摘要： An optical fourth-harmonic generation system includes a resonant cavity configured to support electromagnetic radiation of a fundamental frequency and a fourth-harmonic generator disposed within the resonant cavity produces electromagnetic radiation of a fourth-harmonic frequency by an interaction with radiation of the fundamental frequency. The fundamental radiation is characterized by a p polarization that is complementary to an s polarization that characterizes the fourth-harmonic radiation. The fourth-harmonic generator has an output facet oriented substantially at a Brewster's angle with respect to the fundamental radiation to separate the fundamental radiation from the fourth-harmonic radiation as they emerge from the output facet.
摘要翻译：光学四次谐波发生系统包括构造成支持基频的电磁辐射的谐振腔，并且设置在谐振腔内的第四谐波发生器通过与基频辐射的相互作用产生四次谐波频率的电磁辐射。基本辐射的特征在于与表征四次谐波辐射的s偏振互补的p偏振。第四谐波发生器具有相对于基本辐射基本上以布鲁斯特角度定向的输出小面，当基本辐射从输出小面出现时将基本辐射与第四谐波辐射分离。

4. 发明授权

US07046712B2 Laser resistant to internal ir-induced damage 有权
标题翻译：激光可抵抗内部感染造成的伤害
公开(公告)号：US07046712B2
公开(公告)日：2006-05-16
申请号：US10429261
申请日：2003-05-02
申请人： Mark A. Arbore , John F. Black , William M. Grossman
发明人： Mark A. Arbore , John F. Black , William M. Grossman
IPC分类号： H01S3/094
CPC分类号： H01S3/16 , H01S3/06708 , H01S3/109 , H01S3/117 , H01S3/1611 , H01S3/1643 , H01S3/1645 , H01S3/1691
摘要： Co-doping the gain medium of a diode-pumped infrared laser to make the laser resistant to long-term degradation from high-intensity internal infrared radiation is disclosed. Co-doping the gain medium with ions such as Cr3+ and Ce3+ that make the gain medium resistant to external ionizing radiation solves problems of long-term degradation of the gain medium.
摘要翻译：共掺二极管泵浦红外激光器的增益介质，使激光器耐高温内部红外辐射长期退化。使增益介质与诸如Cr 3+和Ce 3+之间的离子共掺杂，使得增益介质对外部电离辐射具有耐受性，解决了长期降解的问题增益介质。

5. 发明授权

US5076678A Laser diode light imaging optics 失效
标题翻译：激光二极管光成像光学器件
公开(公告)号：US5076678A
公开(公告)日：1991-12-31
申请号：US343469
申请日：1989-04-25
申请人： William M. Grossman , Richard W. Wallace , Leonard Pearson , Martin A. Gifford
发明人： William M. Grossman , Richard W. Wallace , Leonard Pearson , Martin A. Gifford
IPC分类号： G02B3/06 , G02B27/09 , H01S3/00
CPC分类号： G02B3/06 , G02B19/0014 , G02B19/0052 , G02B27/09 , G02B27/0966 , H01S3/005
摘要： A diode imaging system using a single objective lens and a single cylindrical lens. This imaging system does not image perfectly point-to-point, and although not an apparent extension of imaging systems known in the prior art, it works advantageously for imaging beams from diode lasers having long narrow junctions used in pumping solid-state lasers.
摘要翻译：使用单个物镜和单个柱面透镜的二极管成像系统。该成像系统不能完美地成像点对点，尽管不是现有技术中已知的成像系统的明显扩展，但它有利地用于成像来自用于泵浦固态激光器的长窄接头的二极管激光器的束。

6. 发明授权

US5130995A Laser with Brewster angled-surface Q-switch alinged co-axially 失效
标题翻译：激光与布鲁斯特角度表面Q开关同轴地啮合
公开(公告)号：US5130995A
公开(公告)日：1992-07-14
申请号：US343114
申请日：1989-04-25
申请人： William M. Grossman , Richard W. Wallace , Leonard Pearson
发明人： William M. Grossman , Richard W. Wallace , Leonard Pearson
IPC分类号： H01S3/117
CPC分类号： H01S3/117
摘要： A miniature laser cavity in which a solid-state lasing gain element and a Q-switch have respective end surfaces at substantially the Brewster angle, parallel to and facing each other, and separated by a narrow gap occupied by a transparent low-index-of-refraction material.
摘要翻译：一种微型激光腔，其中固态激光增益元件和Q开关具有基本上布鲁斯特角度的相应端表面，平行于并且彼此面对，并且被由透明低折射率占据的窄间隙分开 - 折射材料。

7. 发明授权

US5850407A Third-harmonic generator with uncoated brewster-cut dispersive output facet 失效
标题翻译：三次谐波发生器与未涂布的啤酒花切割分散输出面
公开(公告)号：US5850407A
公开(公告)日：1998-12-15
申请号：US977820
申请日：1997-11-25
申请人： William M. Grossman , Jason D. Henrie
发明人： William M. Grossman , Jason D. Henrie
IPC分类号： G02F1/35 , H01S3/109 , H01S3/10
CPC分类号： H01S3/109 , G02F2001/3509 , G02F2001/354
摘要： A third-harmonic crystal has a Brewster-cut dispersive output surface for separating the p-polarized fundamental and third-harmonic beams without introducing losses into the beams. The output surface of the third-harmonic crystal is optically uncoated, and thus insensitive to potential ultraviolet (UV)-induced damage. Frequency doubling and tripling lithium triborate (LBO) crystals are used with a Brewster-cut Nd-YAG active medium in a resonant cavity to generate UV light at 355 nm from infrared (IR) light at 1064 nm. Except for the tripling crystal output surface, the doubling and tripling crystal optical surfaces are normal-cut and anti-reflection (AR) coated.
摘要翻译：三次谐波晶体具有布鲁斯特切割色散输出表面，用于分离p极化基波和三次谐波，而不会将损耗引入波束。三次谐波晶体的输出表面是光学未涂覆的，因此对潜在的紫外线（UV）引起的损伤不敏感。使用三倍频三倍体（LBO）晶体与布鲁斯特切割的Nd-YAG活性介质共振腔，以在1064nm的红外（IR）光下产生355nm的紫外光。除了三重晶体输出表面外，双重和三倍的晶体光学表面是普通切割和抗反射（AR）涂层。

8. 发明授权

US5226051A Laser pump control for output power stabilization 失效
标题翻译：激光泵控制输出功率稳定
公开(公告)号：US5226051A
公开(公告)日：1993-07-06
申请号：US710288
申请日：1991-06-04
申请人： Melvin Chan , Henry G. Plaessman , Frank Adams , William M. Grossman
发明人： Melvin Chan , Henry G. Plaessman , Frank Adams , William M. Grossman
IPC分类号： H01S3/0941 , H01S3/11 , H01S3/131 , H01S5/042
CPC分类号： H01S3/115 , H01S3/0941 , H01S3/117 , H01S3/1312 , H01S5/042
摘要： Method and apparatus for stabilization of pulse energies produced by a continuously pumped, Q-switched, solid-state or gas laser, through control of the optical power delivered by an optical pump to the laser, in order to limit the energy emitted in any single laser pulse as a result of Q-switching. The laser pump is driven at full strength for a selected initial refresh time t.sub.r. If a Q-switch trigger signal is received by the laser before the elapsed time .DELTA.t has reached the refresh time t.sub.r, the laser emits a pulse with the reduced energy stored in the laser at that time. If the elapsed time reaches or exceeds the refresh time t.sub.r, the optical pump power subsequently delivered to the laser is reduced to a lower level, which may be time-dependent, that is sufficient to maintain the net energy stored in the laser at a predetermined value so that the energy in a subsequently emitted laser pulse does not exceed a selected limit. Numerous techniques for controlling the optical pump power delivered are disclosed.
摘要翻译：通过控制由光泵向激光器传递的光功率，通过连续泵浦，Q开关，固态或气体激光器产生的脉冲能量的稳定化方法和装置，以限制在任何单个激光脉冲作为Q开关的结果。激光泵以全强度驱动以选择初始刷新时间tr。如果在经过时间DELTA t达到刷新时间tr之前由激光器接收到Q开关触发信号，那么激光器在那时发射存储在激光器中的能量减少的脉冲。如果经过的时间达到或超过刷新时间tr，则随后输送到激光器的光泵浦功率被降低到较低的水平，其可能是时间依赖性的，其足以将存储在激光器中的净能量保持在预定的使得随后发射的激光脉冲中的能量不超过选定的极限。公开了用于控制递送的光泵功率的许多技术。

9. 发明授权

US4909612A Optical isolator employing multipass faraday rotation 失效
标题翻译：采用多径法拉第旋转的光隔离器
公开(公告)号：US4909612A
公开(公告)日：1990-03-20
申请号：US885249
申请日：1986-07-14
申请人： David G. Scerbak , John Dutcher , Robert L. Mortensen , Richard W. Wallace , William M. Grossman
发明人： David G. Scerbak , John Dutcher , Robert L. Mortensen , Richard W. Wallace , William M. Grossman
IPC分类号： G02F1/09
CPC分类号： G02F1/093
摘要： An optical Faraday isolator includes a slab of Faraday rotator medium coated to define input and output faces and internal reflective surfaces for causing the beam to travel between the input and output faces along a zig-zag path. Permanent magnets polarized in a direction normal to the plane defined by the zig-zag beam path are disposed on opposite sides of the beam path. The magnets are paired on each side with serially alternating polarity and the like poles are in transverse registration on opposite sides of the beam path to produce an intense, unidirectional magnetic field parallel to the beam path within the rotator slab. A quarterwave plate introduces a compensating amount of elliptical polarization to cancel unwanted elliptical polarization effects of the slab and its coatings. A beam shaving aperture at the exit of the slab shaves off divergent backward travelling rays.
摘要翻译：光学法拉第隔离器包括法拉第转子介质的平板，其被涂覆以限定输入和输出面以及内部反射表面，用于使光束沿着之字形路径在输入和输出面之间行进。在垂直于由锯齿形光束路径限定的平面的方向上极化的永磁体设置在光束路径的相对侧上。磁体在每一侧配对，具有串联交替的极性，并且类似的磁极在光束路径的相对侧上横向配准，以产生平行于旋转板内的光束路径的强烈的单向磁场。四分之一波片引入补偿量的椭圆极化以消除板坯及其涂层的不需要的椭圆偏振效应。在平板出口处的光束剃须孔可以消除发散的反向行进光线。

10. 发明授权

US4422046A Axisymmetric spatial/temporal encoder 失效
标题翻译：轴对称空间/时间编码器
公开(公告)号：US4422046A
公开(公告)日：1983-12-20
申请号：US162213
申请日：1980-06-23
申请人： Peter B. Mumola , Paul R. Yoder, Jr. , Raul E. Casas , William M. Grossman
发明人： Peter B. Mumola , Paul R. Yoder, Jr. , Raul E. Casas , William M. Grossman
IPC分类号： H01S3/00 , H01S3/083 , H05H1/22 , H01S3/05
CPC分类号： G21B1/23 , H01S3/0057 , H01S3/083
摘要： An encoder for providing a conical array of temporally phased pulse beams. A pulse is inserted and continuously recirculated around an optical ring. The pulse is amplified during each circulation and a portion of the pulse is emitted at the end of each circulation. The encoder includes means for spatially separating each emitted pulse to provide a conical array of beams at a constant field angle relative to the optical axis of propagation.
摘要翻译：一种用于提供时间相位脉冲光束的锥形阵列的编码器。插入一个脉冲，并在光环周围连续循环。在每个循环期间脉冲被放大，并且在每个循环结束时发射一部分脉冲。编码器包括用于空间上分离每个发射脉冲的装置，以提供相对于传播光轴以恒定视场角的圆锥阵列。

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