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1. 发明申请

WO2006065524A2 LASER ILLUMINATED PROJECTION DISPLAYS 审中-公开
标题翻译：激光照射投影显示
公开(公告)号：WO2006065524A2
公开(公告)日：2006-06-22
申请号：PCT/US2005/043093
申请日：2005-11-28
申请人： COHERENT, INC. , GOVORKOV, Sergei, V. , SPINELLI, Luis, A. , CHILLA, Juan, L. , CAPRARA, Andrea , REED, Murray, K.
发明人： GOVORKOV, Sergei, V. , SPINELLI, Luis, A. , CHILLA, Juan, L. , CAPRARA, Andrea , REED, Murray, K.
IPC分类号： H04N9/31
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度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，为减少所显示的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。

2. 发明申请

WO2006065537A2 LASER ILLUMINATED PROJECTION DISPLAYS 审中-公开
标题翻译：激光照射投影显示
公开(公告)号：WO2006065537A2
公开(公告)日：2006-06-22
申请号：PCT/US2005/043306
申请日：2005-11-28
申请人： COHERENT, INC. , CHILLA, Juan, L. , GOVORKOV, Sergei, V. , CAPRARA, Andrea , REED, Murray, K. , SPINELLI, Luis, A.
发明人： CHILLA, Juan, L. , GOVORKOV, Sergei, V. , CAPRARA, Andrea , REED, Murray, K. , SPINELLI, Luis, A.
IPC分类号： H04N9/31
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.
摘要翻译：投影视频显示器包括包括以多个横向模式递送激光辐射的OPS激光器（多横模OPS激光器）的光源。显示器包括用于根据要显示的图像的一部分来空间调制来自多横模OPS激光器的辐射的空间光调制器。投影光学器件将空间调制光投射到要显示图像的屏幕上。在一个示例中，OPS激光器是二极管激光阵列泵浦OPS激光器，是三个激光器之一，一个发射红光，一个发射蓝光，另一个传递绿光。激光器被时间调制，使得空间光调制器分别接收来自每个激光器的光。 OPS激光器通过周期性地打开和关闭二极管激光器阵列而被直接时间调制。

3. 发明申请

WO2012122012A3 HIGH-POWER CW FIBER-LASER 审中-公开
公开(公告)号：WO2012122012A3
公开(公告)日：2012-09-13
申请号：PCT/US2012/027445
申请日：2012-03-02
申请人： COHERENT, INC. , MINELLY, John, D. , GOVORKOV, Sergei, V. , SPINELLI, Luis, A. , ANTHON, Douglas, W. , INGALLS, Jay, M.
发明人： MINELLY, John, D. , GOVORKOV, Sergei, V. , SPINELLI, Luis, A. , ANTHON, Douglas, W. , INGALLS, Jay, M.
IPC分类号： H01S3/042 , H01S3/067 , H01S3/08 , H01S3/0941 , H01S3/094 , H01S3/105 , H01S5/40
摘要： A CW fiber- laser includes a gain fiber (42) having a reflector (44) proximity-coupled to one end (42A), with the other end left (42B) uncoated. A laser resonator is defined by the reflector (44) and the uncoated end (42B) of the gain-fiber. Pump - radiation from two fast-axis diode-laser bar stacks (46) is combined and focused into the uncoated end (42B) of the gain - fiber for energizing the fiber. Laser radiation (37) resulting from the energizing is delivered from the uncoated end of the gain -fiber and separated from the pump - radiation by a dichroic mirror (31). A coupler (60) is provided at the uncoated end (42B) of the fiber to absorb pump light not guided in the cladding of the fibre (42).

4. 发明申请

WO2006041619A2 InGaN LED PUMPED II-VI SEMICONDUCTOR LASER 审中-公开
标题翻译： InGaN LED泵浦II-VI半导体激光器
公开(公告)号：WO2006041619A2
公开(公告)日：2006-04-20
申请号：PCT/US2005/033441
申请日：2005-09-16
申请人： COHERENT, INC. , GOVORKOV, Sergei, V. , SPINELLI, Luis, A.
发明人： GOVORKOV, Sergei, V. , SPINELLI, Luis, A.
IPC分类号： H01S5/04 , H01S5/327 , G02B19/00
CPC分类号： G02B27/0955 , G02B27/0905 , G02B27/0994 , H01S3/0933 , H01S3/094057 , H01S3/109 , H01S5/005 , H01S5/02232 , H01S5/02461 , H01S5/041 , H01S5/141 , H01S5/18388 , H01S5/327
摘要： An optically pumped semiconductor laser in accordance with the present invention includes a II-VI semiconductor laser chip A plurality of InGaN LEDs provides optical pump light for optically pumping the laser chip. An optical arrangement collects the pump light from the LEDs and directs the pump light to light-concentrating optical device that is either directly or indirectly in optical contact with the laser chip and is arranged to concentrate the pump light on the chip with maximized numerical aperture (NA). In one example of the laser, the light-concentrating device is an immersion lens. In another example of the laser, the light-concentrating device is a tapered light-pipe.
摘要翻译：根据本发明的光泵浦半导体激光器包括II-VI半导体激光器芯片A，多个InGaN LED提供用于光学泵浦激光芯片的光泵浦光。光学装置从LED收集泵浦光，并将泵浦光引导到与激光芯片直接或间接光学接触的聚光光学装置，并且布置成将泵浦光集中在具有最大数值孔径的芯片上 NA）。在激光的一个示例中，聚光装置是浸没透镜。在激光的另一示例中，聚光装置是锥形光管。

5. 发明申请

WO2012148757A1 OPTICALLY-PUMPED SURFACE-EMITTING SEMICONDUCTOR LASER WITH HEAT-SPREADING COMPOUND MIRROR-STRUCTURE 审中-公开
标题翻译：具有热膨胀复合反射镜的光学泵浦表面发射半导体激光器
公开(公告)号：WO2012148757A1
公开(公告)日：2012-11-01
申请号：PCT/US2012/034090
申请日：2012-04-18
申请人： COHERENT, INC. , GOVORKOV, Sergei, V. , SPINELLI, Luis, A.
发明人： GOVORKOV, Sergei, V. , SPINELLI, Luis, A.
IPC分类号： H01S5/183 , H01S5/024 , H01S5/02 , H01S5/04 , H01S5/14
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 (12) for use in an OPS -laser includes a multilayer semiconductor gain - structure (14) surmounting a multilayer compound mirror- structure (16). Within the multilayer compound mirror- structure is a relatively thick layer of diamond (20) which serves as a heat - spreader. The compound mirror- structure (16) comprises a partially reflecting DBR (18) and a high reflective DBR (22). The resonator may comprise a nonlinear crystal (32) for SHG. The thickness of the diamond (20) is about 1 mm.
摘要翻译：用于OPS激光器的增益模块（12）包括跨越多层复合镜结构（16）的多层半导体增益结构（14）。在多层复合材料中，镜面结构是相当厚的金刚石层（20），用作散热器。复合镜结构（16）包括部分反射DBR（18）和高反射DBR（22）。谐振器可以包括用于SHG的非线性晶体（32）。金刚石（20）的厚度约为1mm。

6. 发明申请

WO2009042024A2 PULSE REPETITION FREQUENCY-MULTIPLIER FOR FIBER LASERS 审中-公开
标题翻译：用于光纤激光器的脉冲重复频率乘法器
公开(公告)号：WO2009042024A2
公开(公告)日：2009-04-02
申请号：PCT/US2008/010215
申请日：2008-08-28
申请人： COHERENT, INC. , STARODOUMOV, Andrei , GOVORKOV, Sergei, V. , SPINELLI, Luis, A.
发明人： STARODOUMOV, Andrei , GOVORKOV, Sergei, V. , SPINELLI, Luis, A.
IPC分类号： H01S3/067 , H01S3/00 , G02F1/00 , G02B27/10
CPC分类号： H01S3/06754 , G02B6/29352 , H01S3/005
摘要： MOPA laser apparatus includes a master oscillator and a preamplifier providing a train of optical pulses. The pulse train is input to a fiber optic device arranged to multiply the pulse-repetition frequency (PRF) of the input pulse train. The PRF multiplying device divides each pulse in the into train into two pulses and delays one pulse relative to the other, some portion of one of the pulses and a portion of the other are delivered by the fiber optic PRF multiplying device as an output pulse-train. having a PRF equal to twice the PRF of the input pulse train.
摘要翻译： MOPA激光装置包括主振荡器和提供一列光脉冲的前置放大器。脉冲串被输入到布置成乘以输入脉冲序列的脉冲重复频率（PRF）的光纤装置。 PRF乘法装置将串列中的每个脉冲分成两个脉冲并相对于另一个脉冲延迟一个脉冲，一个脉冲的一部分和另一个的一部分由光纤PRF乘法装置输出作为输出脉冲 - 培养。 PRF等于输入脉冲串PRF的两倍。

7. 发明申请

WO2008010966A3 HIGH POWER AND HIGH BRIGHTNESS DIODE-LASER ARRAY FOR MATERIAL PROCESSING APPLICATIONS 审中-公开
公开(公告)号：WO2008010966A3
公开(公告)日：2008-01-24
申请号：PCT/US2007/016070
申请日：2007-07-13
申请人： COHERENT, INC. , GOVORKOV, Sergei, V. , DIJAILI, Sol, Peter , ANTHON, Douglas, William , SPINELLI, Luis, A.
发明人： GOVORKOV, Sergei, V. , DIJAILI, Sol, Peter , ANTHON, Douglas, William , SPINELLI, Luis, A.
IPC分类号： H01S5/02 , H01S5/40 , H01S5/00 , H01S5/024
摘要： Arrangements for combination and fast-axis (y) alignment of fast-axes of diode-laser beams are disclosed. Alignment arrangements include providing each diode-laser (150) with a corresponding alignable fast-axis collimating lens (89), providing individually alignable mirrors for steering an re-orienting beams from each diode-laser, and providing single diode-laser slab-modules (142) in which the diode-laser beams can be pre-aligned to a common propagation-axis direction, and in which edges and surfaces of the slabs can be used to align the fast and slow-axes of the beams. Beam combination methods include combination by dichroic elements, polarization-sensitive elements, and optical fiber bundles. Alignment of the fast-axis collimating lens (89) may be realized with the help of a ball (100) and a ceramic pad (154).

8. 发明申请

WO2006096171A1 OPTICAL PULSE DURATION EXTENDER 审中-公开
标题翻译：光学脉冲持续时间延长器
公开(公告)号：WO2006096171A1
公开(公告)日：2006-09-14
申请号：PCT/US2005/007382
申请日：2005-03-03
申请人： COHERENT, INC. , GOVORKOV, Sergei, V. , SPINELLI, Luis, A. , WHITE, William, Eugene , REED, Murray, Keith
发明人： GOVORKOV, Sergei, V. , SPINELLI, Luis, A. , WHITE, William, Eugene , REED, Murray, Keith
IPC分类号： G03F7/20 , G02B27/10
CPC分类号： G03F7/7055
摘要： An optical pulse extender (58) includes a delay loop (60) formed by a plurality of mirrors (64, 66, 68) and a graded reflectivity beamsplitter (62). The mirrors and the beamsplitter are. configured and aligned such that a pulse to be broadened makes a predetermined number of round trips in the delay loop and is incident on a different zone of the beamsplitter after each round trip. The different zones of the beamsplitter have different reflection values and different transmission values. These values are selected such that the pulse extender delivers a plurality of temporally and spatially separated replica pulses each thereof having about the same energy. The delivered replica pulses together provide an extended pulse having a longer duration than the input pulse. The replica pulses may be passed through a beam homogenizer to spatially homogenize the temporal characteristics of the extended pulse.
摘要翻译：光脉冲扩展器（58）包括由多个反射镜（64,66,68）和渐变反射分束器（62）形成的延迟环（60）。镜子和分光镜是。配置和对准，使得待加宽的脉冲在延迟环中进行预定数量的往返，并且在每次往返之后入射到分束器的不同区域。分束器的不同区域具有不同的反射值和不同的透射值。这些值被选择为使得脉冲延长器递送多个时间上和空间上分离的复制脉冲，每个复制脉冲具有大约相同的能量。传送的副本脉冲一起提供具有比输入脉冲更长的持续时间的扩展脉冲。复制脉冲可以通过光束均化器以空间均匀扩展脉冲的时间特性。

9. 发明申请

WO2008010956A1 AMORPHOUS SILICON CRYSTALLIZATION USING COMBINED BEAMS FROM OPTICALLY PUMPED SEMICONDUCTOR LASERS 审中-公开
标题翻译：使用光学半导体激光器的组合晶体的非晶硅结晶
公开(公告)号：WO2008010956A1
公开(公告)日：2008-01-24
申请号：PCT/US2007/015986
申请日：2007-07-13
申请人： COHERENT, INC. , GOVORKOV, Sergei, V. , AUSTIN, R., Russel , FERBER, Joerg
发明人： GOVORKOV, Sergei, V. , AUSTIN, R., Russel , FERBER, Joerg
IPC分类号： B23K26/073
CPC分类号： B23K26/0604 , B23K26/0613 , B23K2201/40
摘要： An amorphous silicon layer on a glass substrate is crystallized by concentrating CW radiation from a number of OPS-lasers into a line of light on the layer. The layer is moved with respect to the line of light to control the dwell time of the line on any location on the layer and to crystallize an extended area of the layer.
摘要翻译：通过将来自多个OPS激光器的CW辐射集中到该层上的光线中，玻璃基板上的非晶硅层被结晶。该层相对于光线移动，以控制该层在该层上任何位置上的停留时间并使该层的延伸区域结晶。

10. 发明申请

WO2008085273A1 FREQUENCY-DOUBLED EDGE-EMITTING SEMICONDUCTOR LASERS 审中-公开
标题翻译：频率峰值边界发射半导体激光器
公开(公告)号：WO2008085273A1
公开(公告)日：2008-07-17
申请号：PCT/US2007/025515
申请日：2007-12-13
申请人： COHERENT, INC. , GOVORKOV, Sergei, V. , AUSTIN, R., Russel
发明人： GOVORKOV, Sergei, V. , AUSTIN, R., Russel
IPC分类号： H01S5/026 , H01S5/06
CPC分类号： H01S5/026 , H01S5/028 , H01S5/041 , H01S5/0604 , H01S5/1032 , H01S5/125 , H01S5/3211 , H01S5/4031
摘要： A frequency-doubled, edge-emitting semiconductor laser (10) includes a separate confinement heterostructure (14) surmounted by a waveguide (48) including a converting layer (36) of a periodically poled, optically nonlinear material. Fundamental radiation generated in the heterostructure (14) is directionally coupled from the heterostructure (14) into the waveguide (48), is converted to second-harmonic radiation in the converting layer (36) and is delivered from the waveguide (48) as output radiation. In one example, a distributed Bragg grating (26) is included at an interface between the heterostructure (14) and the waveguide (48) for facilitating coupling of fundamental radiation from the heterostructure (14) into the waveguide.
摘要翻译：倍频边缘发射半导体激光器（10）包括由包括周期性极化的光学非线性材料的转换层（36）的波导（48）所覆盖的单独的约束异质结构（14）。在异质结构（14）中产生的基本辐射从异质结构（14）定向耦合到波导（48）中，在转换层（36）中转换成二次谐波辐射，并从波导（48）输出作为输出辐射。在一个示例中，分布式布拉格光栅（26）被包括在异质结构（14）和波导（48）之间的界面处，以便于将来自异质结构（14）的基本辐射耦合到波导中。

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