专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08774238B2 Mode-locked optically pumped semiconductor laser 有权
标题翻译：锁模光泵浦半导体激光器
公开(公告)号：US08774238B2
公开(公告)日：2014-07-08
申请号：US13174330
申请日：2011-06-30
申请人： Ian MacGillivray , Andrea Caprara , Sergei Govorkov
发明人： Ian MacGillivray , Andrea Caprara , Sergei Govorkov
IPC分类号： H01S3/081 , H01S5/065
CPC分类号： H01S5/0657 , H01S3/07 , H01S3/0813 , H01S3/094026 , H01S3/1118 , H01S3/1121 , H01S3/1306 , H01S3/1307 , H01S5/041 , H01S5/14 , H01S5/183
摘要： A laser includes an optically pumped semiconductor OPS gain-structure. The apparatus has a laser-resonator which includes a mode-locking device for causing the laser to deliver mode-locked pulses. The resonator has a total length selected such that the mode-locked pulses are delivered at a pulse repetition frequency of about 100 MHz. An optical arrangement within the resonator provides that radiation circulating in the resonator makes a plurality of incidences on the OPS gain-structure with a time less than the excited-state lifetime of the gain-structure between successive incidences.
摘要翻译：激光器包括光泵浦半导体OPS增益结构。该装置具有激光谐振器，该激光谐振器包括用于使激光器传递锁模脉冲的模式锁定装置。共振器具有选择的总长度，使得锁模脉冲以约100MHz的脉冲重复频率传送。谐振器内的光学布置使得在谐振器中循环的辐射在OPS增益结构上产生多个发生时间，其时间小于连续发生之间的增益结构的激发态寿命。

2. 发明申请

US20060125969A1 Laser illuminated projection displays 失效
公开(公告)号：US20060125969A1
公开(公告)日：2006-06-15
申请号：US11011075
申请日：2004-12-14
申请人： Juan Chilla , Sergei Govorkov , Andrea Caprara , Murray Reed , Luis Spinelli
发明人： Juan Chilla , Sergei Govorkov , Andrea Caprara , Murray Reed , Luis Spinelli
IPC分类号： H04N9/31 , H04N5/64
CPC分类号： H04N9/3129 , H04N9/3114 , H04N9/315
摘要： A projection video display includes a light source including an OPS-laser delivering laser radiation in multiple transverse modes (a multiple-transverse-mode OPS-laser). The display includes a spatial light modulator for spatially modulating the radiation from the multiple-transverse-mode OPS-laser in accordance with a portion of an image to be displayed. Projection optics project the spatially modulated light on a screen on which the image is to be displayed. In one example the OPS-laser is a diode-laser array pumped OPS-laser and is one of three lasers, one delivering red light, one delivering blue light, and the other delivering green light. The lasers are time modulated such that the spatial light modulator receives light from each of the lasers separately. The OPS laser is directly time modulated by periodically turning the diode-laser array on and off.

3. 发明申请

US20060126022A1 Laser illuminated projection displays 失效
标题翻译：激光照明投影显示屏
公开(公告)号：US20060126022A1
公开(公告)日：2006-06-15
申请号：US11011736
申请日：2004-12-14
申请人： Sergei Govorkov , Luis Spinelli , Juan Chilla , Andrea Caprara , Murray Reed
发明人： Sergei Govorkov , Luis Spinelli , Juan Chilla , Andrea Caprara , Murray Reed
IPC分类号： G03B21/00
CPC分类号： G03B21/62 , G02B26/101 , G02B27/48 , G03B21/10 , G03B21/56 , H04N9/3152 , H04N9/3161
摘要： A projection video display includes at least one laser for delivering a light beam. The display includes a beam homogenizer and a condenser lens. A scanning arrangement is provided for scanning the light in beam in a particular pattern over the condenser lens in a manner that effectively increases the beam divergence. The scanned beam is homogenized by a beam homogenizer and a spatial light modulator is arranged to receive the homogenized scanned light beam and spatially modulate the beam in accordance with a component of an image to be displayed. Projection optics are projecting the homogenized scanned light beam onto a screen. The scanning provides that the homogenized scanned light beam at the screen has a coherence radius less than the original coherence radius of the beam. The reduced coherence radius contributes to minimizing speckle contrast in the image displayed on the screen. The screen includes one or more features providing a further contribution to minimizing speckle contrast in the displayed image. In one example, the screen includes a transparent cell containing a liquid having light scattering particles in suspension.
摘要翻译：投影视频显示器包括用于传送光束的至少一个激光器。显示器包括光束均化器和聚光透镜。提供了一种扫描装置，用于以有效地增加光束发散的方式在聚光透镜上以特定图案扫描光束中的光。扫描的光束通过光束均化器均质化，并且空间光调制器被布置成接收均匀化的扫描光束，并且根据要显示的图像的分量对光束进行空间调制。投影光学器件将均匀化的扫描光束投影到屏幕上。扫描提供了屏幕上的均匀化扫描光束的相干半径小于光束的原始相干半径。减小的相干半径有助于最小化屏幕上显示的图像中的斑点对比度。屏幕包括一个或多个特征，为减少显示图像中的散斑对比度提供进一步的贡献。在一个示例中，屏幕包括含有悬浮液中具有光散射颗粒的液体的透明单元。

4. 发明授权

US08611383B2 Optically-pumped surface-emitting semiconductor laser with heat-spreading compound mirror-structure 有权
标题翻译：具有散热复合镜面结构的光泵浦表面发射半导体激光器
公开(公告)号：US08611383B2
公开(公告)日：2013-12-17
申请号：US13093585
申请日：2011-04-25
申请人： Sergei Govorkov , Luis Spinelli
发明人： Sergei Govorkov , Luis Spinelli
IPC分类号： H01S5/024 , H01S5/183
CPC分类号： H01S5/02484 , B82Y20/00 , H01S3/109 , H01S5/0213 , H01S5/041 , H01S5/142 , H01S5/18361 , H01S5/18377 , H01S5/1838 , H01S5/34306
摘要： A gain-module for use in an OPS-laser includes a multilayer semiconductor gain-structure surmounting a multilayer compound mirror-structure. Within the multilayer compound mirror-structure is a relatively thick layer of diamond which serves as a heat-spreader.
摘要翻译：用于OPS激光器的增益模块包括跨越多层复合镜结构的多层半导体增益结构。在多层复合镜中，镜面结构是用作散热器的相对较厚的金刚石层。

5. 发明申请

US20070036194A1 Excimer-lamp pumped semiconductor laser 审中-公开
标题翻译：准分子泵浦半导体激光器
公开(公告)号：US20070036194A1
公开(公告)日：2007-02-15
申请号：US11203734
申请日：2005-08-15
申请人： Sergei Govorkov , Luis Spinelli , R. Austin
发明人： Sergei Govorkov , Luis Spinelli , R. Austin
IPC分类号： H01S3/22 , H01S3/091 , H01S3/09
CPC分类号： H01S5/041 , B82Y20/00 , H01S5/0222 , H01S5/02296 , H01S5/024 , H01S5/141 , H01S5/183 , H01S5/3018 , H01S5/3045 , H01S5/327 , H01S5/347
摘要： In an optically pumped semiconductor laser including a semiconductor laser heterostructure, energy of high-energy electrons of an electron beam is converted by excimer formation and dissociation in a gas into ultraviolet (UV) radiation. The ultraviolet radiation is used to optically pump the heterostructure. Materials of the heterostructure may include II-VI compounds, oxides, or diamond. Both surface-emitting and edge-emitting heterostructures may be optically pumped by the UV radiation.
摘要翻译：在包括半导体激光异质结构的光泵浦半导体激光器中，电子束的高能电子的能量通过准分子的形成和气体中的解离转化成紫外（UV）辐射。使用紫外线辐射来泵浦异质结构。异质结构的材料可以包括II-VI化合物，氧化物或金刚石。表面发射和边缘发射异质结构都可以通过UV辐射被光泵浦。

6. 发明授权

US06717973B2 Wavelength and bandwidth monitor for excimer or molecular fluorine laser 失效
标题翻译：准分子或分子氟激光的波长和带宽监测
公开(公告)号：US06717973B2
公开(公告)日：2004-04-06
申请号：US09883097
申请日：2001-06-13
申请人： Dirk Basting , Sergei Govorkov , Juergen Kleinschmidt , Peter Lokai , Uwe Stamm
发明人： Dirk Basting , Sergei Govorkov , Juergen Kleinschmidt , Peter Lokai , Uwe Stamm
IPC分类号： H01S320
CPC分类号： H01S3/225 , B23K26/12 , B23K26/128 , B23K26/705 , G01J1/4257 , G03F7/70025 , G03F7/70558 , G03F7/70808 , H01S3/0014 , H01S3/0315 , H01S3/08004 , H01S3/08009 , H01S3/08036 , H01S3/08059 , H01S3/1062 , H01S3/134 , H01S3/137 , H01S3/2258
摘要： A F2-laser includes a discharge chamber filled with a gas mixture including molecular fluorine for generating a spectral emission in a wavelength range between 157 nm and 158 nm including a primary line and a secondary line, multiple electrodes coupled with a power supply circuit for producing a pulsed discharge to energize the molecular fluorine, a resonator including the discharge chamber and an interferometric device for generating a laser beam having a bandwidth of less than 1 pm, and a wavelength monitor coupled in a feedback loop with a processor for monitoring a spectral distribution of the laser beam. The processor controls an interferometric spectrum of the interferometric device based on the monitored spectral distribution such that sidebands within the spectral distribution are substantially minimized.
摘要翻译： F2激光器包括填充有包括分子氟的气体混合物的放电室，用于在包括初级线和次级线的157nm和158nm之间的波长范围内产生光谱发射，多个电极与用于生产的电源电路用于激发分子氟的脉冲放电，包括放电室的谐振器和用于产生具有小于1ms的带宽的激光束的干涉仪，以及耦合在反馈环路中的波长监测器，用于监测光谱分布的激光束。处理器基于监测的光谱分布来控制干涉测量装置的干涉光谱，使得光谱分布内的边带基本上最小化。

7. 发明授权

US06243406B1 Gas performance control system for gas discharge lasers 失效
标题翻译：气体放电激光器气体性能控制系统
公开(公告)号：US06243406B1
公开(公告)日：2001-06-05
申请号：US09418052
申请日：1999-10-14
申请人： Peter Heist , Matthias Kramer , Jürgen Kleinschmidt , Sergei Govorkov
发明人： Peter Heist , Matthias Kramer , Jürgen Kleinschmidt , Sergei Govorkov
IPC分类号： H01S322
CPC分类号： G03F7/70025 , G03F7/70041 , G03F7/70575 , H01S3/036 , H01S3/038 , H01S3/134 , H01S3/22 , H01S3/225 , H01S3/2258
摘要： A gas mixture of a gas discharge laser such as an excimer or molecular fluorine laser is stabilized. The gas mixture of the laser includes a constituent halogen containing molecular species such as F2 or HCl which is subject to depletion from an initial optimum concentration. When the gas mixture is energized by a pulsed discharge circuit, the amplified spontaneous emission (ASE) signal is monitored. The status of the gas mixture is determined based on the monitored ASE signal. Stimulated emission is preferably filtered or blocked for more precise ASE signal monitoring. The gas mixture is preferably replenished using small halogen injections, total pressure adjustments and mini and partial gas replacements based on the evolving gas mixture status determined from the monitored ASE signal. Another parameter may be monitored such as the driving voltage to indicate the status of another system specification such as alignment or degradation of resonator optics, synchronization of optical components, contamination within the resonator or purge conditions for a F2-laser enclosure.
摘要翻译：诸如准分子或分子氟激光器之类的气体放电激光器的气体混合物是稳定的。激光的气体混合物包括含有分子物质如F2或HCl的组分卤素，其从初始最佳浓度消耗。当气体混合物通过脉冲放电电路通电时，监测放大的自发发射（ASE）信号。基于被监测的ASE信号确定气体混合物的状态。刺激的发射优选地被过滤或阻挡以用于更精确的ASE信号监测。气体混合物优选使用小型卤素注射，总压力调节和基于从监测的ASE信号确定的演变气体混合物状态的微小和部分气体替代物来补充。可以监视另一参数，例如驱动电压以指示另一系统规范的状态，例如谐振器光学器件的对准或退化，光学部件的同步，谐振器内的污染物或用于F2激光器外壳的吹扫条件。

8. 发明申请

US20070115535A1 Master-oscillator power-amplifier (MOPA) excimer or molecular fluorine laser system with long optics lifetime 有权
标题翻译：具有长光学寿命的主振荡器功率放大器（MOPA）准分子或分子氟激光系统
公开(公告)号：US20070115535A1
公开(公告)日：2007-05-24
申请号：US11654780
申请日：2007-01-18
申请人： Sergei Govorkov , Gongxue Hua , Timur Misuryaev , Alexander Wiessner , Thomas Schmidt , Rainer Paetzel
发明人： Sergei Govorkov , Gongxue Hua , Timur Misuryaev , Alexander Wiessner , Thomas Schmidt , Rainer Paetzel
IPC分类号： H01S3/00
CPC分类号： G03F7/7055 , H01S3/0057 , H01S3/0835 , H01S3/235
摘要： The lifetime of optical components used in deep-UV (DUV) excimer laser systems, including systems in a MOPA configuration, can be increased by reducing the intensity of pulses incident upon these components. In one approach, an output pulse can be “stretched” in order to reduce the peak power of the pulse. A pulse stretching component can be used, which can be mounted outside the laser enclosure with a horizontal beam path in order to provide a delay line with a minimum impact on the laser system footprint. The horizontal beam path also can minimize the number of optical components in the arm containing the high power beam. A beamsplitting prism can be used with the delay line to avoid the rapid degradation of coatings otherwise exposed to intense UV beams. The prism can expand the beam in the delay line in order to minimize beam intensity and losses due to reflection.
摘要翻译：包括在MOPA配置中的系统的深UV（DUV）准分子激光系统中使用的光学部件的寿命可以通过降低入射在这些部件上的脉冲的强度来增加。在一种方法中，输出脉冲可以被“拉伸”，以便降低脉冲的峰值功率。可以使用脉冲拉伸部件，其可以安装在具有水平光束路径的激光外壳外部，以便提供对激光系统占地面积具有最小影响的延迟线。水平光束路径还可以使包含高功率光束的臂中的光学部件的数量最小化。分束棱镜可以与延迟线一起使用，以避免涂层的快速退化，否则暴露于强烈的UV光束。棱镜可以在延迟线中扩展光束，以便最小化光束强度和由于反射引起的损耗。

9. 发明申请

US20070070302A1 Speckle reduction in laser illuminated projection displays having a one-dimensional spatial light modulator 失效
标题翻译：具有一维空间光调制器的激光照射投影显示器中的斑点减少
公开(公告)号：US20070070302A1
公开(公告)日：2007-03-29
申请号：US11238202
申请日：2005-09-29
申请人： Sergei Govorkov , Luis Spinelli
发明人： Sergei Govorkov , Luis Spinelli
IPC分类号： G03B21/26
CPC分类号： G03B21/2033 , G02B26/0808 , G02B26/105 , G02B27/48 , H04N9/3132
摘要： A projection display including a one-dimensional light modulator includes an optical arrangement for projecting light from a laser onto the modulator in the form of a line of light. Light from the laser is divided to create in effect a two-dimensional array of mutually incoherent light sources. Light from one axis of the array is projected onto the modulator to form the length of the line of light and light from the other axis of the array is projected onto the modulator to form the width of the line of light. Division of the light is accomplished without the use of any moving component.
摘要翻译：包括一维光调制器的投影显示器包括用于以光线形式将来自激光的光投射到调制器上的光学装置。将来自激光器的光分割成实际上产生相互不相干的光源的二维阵列。将来自阵列的一个轴的光投影到调制器上以形成光线的长度，并且将来自阵列的另一个轴的光投影到调制器上以形成光线的宽度。光的分割是在不使用任何移动部件的情况下完成的。

10. 发明申请

US20050169341A1 Reduced-maintenance excimer laser with oil-free solid state pulser 失效
标题翻译：使用无油固态脉冲发生器的减少维护准分子激光器
公开(公告)号：US20050169341A1
公开(公告)日：2005-08-04
申请号：US10713583
申请日：2003-11-14
申请人： Hubertus Bergmann , Spencer Merz , Gongxue Hua , Sergei Govorkov
发明人： Hubertus Bergmann , Spencer Merz , Gongxue Hua , Sergei Govorkov
IPC分类号： H01S3/097 , H01S3/225
CPC分类号： H01S3/097 , H01S3/225
摘要： An oil-free pulser design can be used to produce an excimer or molecular fluorine laser system that is lighter, cheaper to produce, and simpler than existing systems. Such designs allow a relatively low DC voltage to be applied to a main transformer, allowing the pulser to be run without oil cooling. This relatively low voltage can be increased to the necessary voltage level, such as on the order to 12 kV to 15 kV, needed to drive the laser system. This transference can be accomplished using standard components, such as a pair of capacitor elements that are pulse-charged in parallel, but can be discharged in series following a reversal of charge on one of the capacitor elements.
摘要翻译：无油脉冲发生器设计可用于生产更轻，生产成本更低，比现有系统简单的准分子或分子氟激光系统。这样的设计允许将相对较低的DC电压施加到主变压器，允许脉冲发生器在没有油冷却的情况下运行。该相对低的电压可以增加到驱动激光系统所需的所需电压水平，例如达到12kV至15kV。可以使用诸如并联脉冲充电的一对电容器元件之类的标准组件来实现该转移，但是可以在其中一个电容器元件上的电荷反转之后串联放电。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式