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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

WO2011084467A1 RESONANT PUMPING OF THIN-DISK LASER WITH AN OPTICALLY PUMPED EXTERNAL-CAVITY SURFACE-EMITTING SEMICONDUCTOR LASER 审中-公开
标题翻译：具有光泵浦外壳表面发射半导体激光器的薄磁盘激光器的谐振泵浦
公开(公告)号：WO2011084467A1
公开(公告)日：2011-07-14
申请号：PCT/US2010/060478
申请日：2010-12-15
申请人： COHERENT, INC. , SPINELLI, Luis, A. , CAPRARA, Andrea
发明人： SPINELLI, Luis, A. , CAPRARA, Andrea
IPC分类号： H01S3/042 , H01S3/06 , H01S3/0941 , H01S3/16 , H01S3/11 , H01S5/04 , H01S5/14 , H01S3/094
CPC分类号： H01S3/0604 , H01S3/042 , H01S3/0621 , H01S3/094084 , H01S3/09415 , H01S3/1112 , H01S3/1118 , H01S3/1618 , H01S3/1643 , H01S5/041 , H01S5/14
摘要： Laser apparatus comprises a solid-state laser-resonator including a thin-disk solid-state gain-medium. The thin-disk gain medium is optically pumped using radiation circulating in an OPS-laser resonator. The solid-state laser-resonator can be a passively mode-locked or actively Q-switched laser-resonator.
摘要翻译：激光装置包括具有薄盘固态增益介质的固态激光谐振器。使用在OPS激光谐振器中循环的辐射来光学泵浦薄盘增益介质。固态激光谐振器可以是被动锁模或主动Q开关激光谐振器。

3. 发明申请

WO2007136536A3 LOW POWER Q-SWITCHED SOLID-STATE LASERS 审中-公开
公开(公告)号：WO2007136536A3
公开(公告)日：2007-11-29
申请号：PCT/US2007/011007
申请日：2007-05-07
申请人： COHERENT, INC. , SPINELLI, Luis, A. , CAPRARA, Andrea , JERMAN, John, H.
发明人： SPINELLI, Luis, A. , CAPRARA, Andrea , JERMAN, John, H.
IPC分类号： H01S3/121
摘要： In a miniature Q-switched, pulsed laser, having a two arm folded resonator, Q- switching is effected by rapidly and reciprocally tilting a resonator mirror (24) of the laser about an axis (Y) perpendicular to the axis of the laser resonator. The angular excursion of the tilting (Φ) and the frequency of the tilting are selected cooperative with dimensions of the resonator to maximize energy and symmetry of intensity distribution in Q-switched pulses delivered by the laser. Rapid reciprocal tilting of the mirror (24) is accomplished using a piezoelectrically-driven, MEMS scanner operated in a resonant mode.

4. 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。

5. 发明申请

WO2013003239A1 MODE-LOCKED OPTICALLY PUMPED SEMICONDUCTOR LASER 审中-公开
标题翻译：模式锁定的光学泵浦半导体激光器
公开(公告)号：WO2013003239A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/043846
申请日：2012-06-22
申请人： COHERENT, INC. , MACGILLIVRAY, Ian , CAPRARA, Andrea , GOVORKOV, Sergei
发明人： MACGILLIVRAY, Ian , CAPRARA, Andrea , GOVORKOV, Sergei
IPC分类号： H01S3/06 , H01S3/07 , H01S3/081 , H01S3/094 , H01S5/14 , H01S5/183 , H01S5/34 , H01S3/11
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 (10) includes an optically pumped semiconductor OPS gain- structure (16). The apparatus has a laser-resonator (11) which includes a mode-locking device for causing the laser to deliver modelocked 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（10）包括光泵浦半导体OPS增益结构（16）。该装置具有激光谐振器（11），其包括用于使激光器递送锁模脉冲的锁模装置。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。

6. 发明申请

WO2005038999A1 INTRACAVITY FREQUENCY-TRIPLED CW LASER 审中-公开
标题翻译： INTRACAVITY FREQUENCY-TRIPLED CW激光
公开(公告)号：WO2005038999A1
公开(公告)日：2005-04-28
申请号：PCT/US2004/032839
申请日：2004-10-06
申请人： COHERENT, INC. , SPINELLI, Luis , CAPRARA, Andrea
发明人： SPINELLI, Luis , CAPRARA, Andrea
IPC分类号： H01S3/109
CPC分类号： H01S3/109 , G02F1/3532 , G02F1/3534 , G02F1/37 , G02F2001/354 , H01S3/1083 , H01S5/041 , H01S5/14
摘要： A method of intracavity frequency conversion in a CW laser includes causing fundamental radiation to circulate in a laser resonator. The fundamental radiation makes a first pass through an optically nonlinear crystal where a fraction of the fundamental radiation generates second-harmonic radiation in a forward pass through the crystal. The residual fundamental radiation and the second-harmonic radiation are then sum-frequency mixed in forward and reverse passes through an optically nonlinear crystal such that a fraction of each is converted to third-harmonic radiation. The residual second-harmonic radiation and fundamental radiation from the sum-frequency mixing then make a reverse pass through the second-harmonic generating crystal where the second-harmonic radiation is converted back to fundamental radiation. The third harmonic radiation can be delivered from the resonator as output radiation, or can be used to pump another optically nonlinear crystal in an optical parametric oscillator. Second-harmonic radiation can also be used to pump an optical parametric oscillator.
摘要翻译：在CW激光器中的腔内频率转换的方法包括使基本辐射在激光谐振器中循环。基本辐射首先通过光学非线性晶体，其中基波的一部分在向前通过晶体时产生二次谐波辐射。剩余的基本辐射和二次谐波辐射然后在正向和反向通过光学非线性晶体进行和频混合，使得其中的一部分被转换为三次谐波辐射。来自和频混合的残余二次谐波辐射和基波辐射反向通过二次谐波产生晶体，二次谐波辐射被转换回基本辐射。三次谐波辐射可以作为输出辐射从谐振器输出，或者可以用于泵浦光参量振荡器中的另一光学非线性晶体。二次谐波辐射也可用于泵浦光参量振荡器。

7. 发明申请

WO2010148055A1 EXTERNAL CAVITY VCSEL WITH INTRACAVITY SINGLY RESONANT OPO FREQUENCY MULTPLYING 审中-公开
标题翻译：外部腔隙VCSEL，具有静态单声道OPO频率MULTPLYING
公开(公告)号：WO2010148055A1
公开(公告)日：2010-12-23
申请号：PCT/US2010/038770
申请日：2010-06-16
申请人： COHERENT, INC. , CAPRARA, Andrea
发明人： CAPRARA, Andrea
IPC分类号： H01S3/082 , H01S3/108 , H01S3/109 , H01S5/14 , G02F1/35 , G02F1/39 , H01S3/081 , H01S3/106 , H01S5/183 , H01S3/0941
CPC分类号： H01S5/141 , G02F1/3532 , G02F2001/392 , H01S3/08027 , H01S3/08054 , H01S3/0817 , H01S3/0823 , H01S3/09415 , H01S3/106 , H01S3/1083 , H01S3/109 , H01S5/041 , H01S5/183
摘要： In a branched resonator OPS -laser arrangement, a combination of intra-cavity optical parametric generation and intra-cavity sum-frequency mixing provides output radiation in a range between about 550 nanometers about 700 nanometers from an OPS fundamental wavelength in a range between about 900 nm and about 1100 nm. In another branched resonator OPS-laser arrangement, a combination of intra-cavity optical parametric generation and intra-cavity frequency conversion provides output radiation in a range between about 550 nanometers about 800 nanometers from an OPS fundamental wavelength in a range between about 900 nm and about 1100 nm. The external cavity VCSEL (12) comprises a semiconductor gain medium (16) and a resonator (20) comprising a KTA/RTA non linear crystal (40) for optical parametric amplification with the signal being resonant in a second resonator (24). SHG of the signal is performed in a second crystal (44A) or SFG between signal and fundamental in a LBO crystal (44).
摘要翻译：在分支谐振器OPS激光器布置中，腔内光学参数生成和腔内和频混合的组合在距离OPS基波长在约900nm之间的范围内提供在约550纳米约700纳米之间的范围内的输出辐射 nm和约1100nm。在另一种分支式OPS激光器分支式结构中，腔内光学参数产生与腔内频率转换的组合在距离OPS基本波长在约900nm和约900nm之间的范围内提供约550纳米约800纳米的输出辐射，约1100nm。外腔VCSEL（12）包括半导体增益介质（16）和包括用于光参量放大的KTA / RTA非线性晶体（40）的谐振器（20），信号在第二谐振器（24）中谐振。在LBO晶体（44）中的第二晶体（44A）或信号与基波之间的SFG执行信号的SHG。

8. 发明申请

WO2016171856A1 APPARATUS FOR COMBINING OUTPUTS OF FIBER-LASERS 审中-公开
标题翻译：用于组合光纤激光器输出的装置
公开(公告)号：WO2016171856A1
公开(公告)日：2016-10-27
申请号：PCT/US2016/025031
申请日：2016-03-30
申请人： COHERENT, INC.
发明人： GOVORKOV, Sergei , ANTHON, Douglas, W. , CAPRARA, Andrea
IPC分类号： H01S3/23
CPC分类号： G02B6/32 , G02B2006/12102 , G02B2006/12121 , G02B2006/12147 , H01S3/005 , H01S3/067 , H01S3/2383
摘要： Diverging beams (13, 15, 17) from three fiber-lasers (12, 14, 16) are collimated by a three-segment composite lens (20). The collimated beams propagate parallel to each other to a single focusing lens (32) that focuses the collimated beams into a transport fiber (18).
摘要翻译：来自三个光纤激光器（12,14,16）的发散光束（13,15,17）由三段复合透镜（20）准直。准直光束彼此平行地传播到将准直光束聚焦到传输光纤（18）中的单个聚焦透镜（32）。

9. 发明申请

WO2020086262A1 THIRD-HARMONIC GENERATING APPARATUS FOR LASER-RADIATION 审中-公开
公开(公告)号：WO2020086262A1
公开(公告)日：2020-04-30
申请号：PCT/US2019/055243
申请日：2019-10-08
申请人： COHERENT, INC.
发明人： CAPRARA, Andrea
IPC分类号： G02F1/35
摘要： A third-harmonic conversion arrangement includes a second-harmonic generating crystal and a third-harmonic generating crystal arranged in a polarization loop. The polarization loop causes plane-polarized fundamental-wavelength radiation being converted to make two passes through the crystals in orthogonally-opposed polarization orientations.

10. 发明申请

WO2018075294A1 REFLECTIVE LASER LINE-BEAM GENERATOR 审中-公开
标题翻译：反射式激光线束发生器
公开(公告)号：WO2018075294A1
公开(公告)日：2018-04-26
申请号：PCT/US2017/055929
申请日：2017-10-10
申请人： COHERENT, INC.
发明人： HERTWIG, Michael , CAPRARA, Andrea , WINZ, Michele, Wayne , GOVORKOV, Sergei
IPC分类号： G02B27/09
CPC分类号： G02B27/0927 , G02B5/10 , G02B27/0983 , G02B27/283 , G02B27/30
摘要： A mirror is used to form a beam of laser-radiation having a uniform intensity distribution from a beam of laser-radiation having a non-uniform intensity distribution. The mirror has a reflective surface that has a compound shape, which is two inclined surfaces joined by a rounded apex. The compound-mirror is achromatic and can form a uniform intensity distribution from a polychromatic beam of laser-radiation. The uniform intensity distribution may be an isotropic distribution or a flat-top distribution in a plane. The non-uniform intensity distribution may be a Gaussian distribution from a laser source.
摘要翻译：反射镜用于从具有不均匀强度分布的激光辐射束形成具有均匀强度分布的激光辐射束。镜子具有复合形状的反射表面，其是由圆形顶点连接的两个倾斜表面。复合反射镜是无彩色的，可以从激光辐射的多色光束形成均匀的强度分布。均匀的强度分布可以是各向同性分布或平面上的平顶分布。不均匀的强度分布可能是来自激光源的高斯分布。

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