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21. 发明授权

US06438153B1 High-power external-cavity optically-pumped semiconductor lasers 有权
标题翻译：大功率外腔光泵浦半导体激光器
公开(公告)号：US06438153B1
公开(公告)日：2002-08-20
申请号：US09938226
申请日：2001-08-23
申请人： Andrea Caprara , Juan L. Chilla , Luis A. Spinelli
发明人： Andrea Caprara , Juan L. Chilla , Luis A. Spinelli
IPC分类号： H01S308
CPC分类号： H01S5/041 , H01S3/07 , H01S3/0815 , H01S3/082 , H01S3/094053 , H01S3/09408 , H01S3/09415 , H01S3/105 , H01S3/1083 , H01S3/109 , H01S3/1095 , H01S3/139 , H01S5/02272 , H01S5/024 , H01S5/02423 , H01S5/02484 , H01S5/14 , H01S5/141 , H01S5/18383
摘要： External-cavity optically-pumped semiconductor lasers (OPS-lasers) including an OPS-structure having a mirror-structure surmounted by a surface-emitting, semiconductor multilayer (periodic) gain-structure are disclosed. The gain-structure is pumped by light from diode-lasers. The OPS-lasers can provide fundamental laser output-power of about two Watts (2.0 W) or greater. Intracavity frequency-converted arrangements of the OPS-lasers can provide harmonic laser output-power of about one-hundred milliwatts (100 mW) or greater, even at wavelengths in the ultraviolet region of the electromagnetic spectrum. These high output powers can be provided even in single axial-mode operation. Particular features of the OPS-lasers include a heat sink-assembly for cooling the OPS-structure, a folded resonator concept for providing optimum beam size at optically-nonlinear crystals used for frequency conversion, preferred selection of optically-nonlinear materials for frequency-conversion, and compound resonator designs for amplifying second harmonic-radiation for subsequent conversion to third or fourth harmonic radiation.
摘要翻译：公开了包括具有由表面发射的半导体多层（周期）增益结构所覆盖的镜面结构的OPS结构的外腔光泵浦半导体激光器（OPS-激光器）。增益结构由二极管激光器的光泵浦。 OPS激光器可以提供约2瓦（2.0瓦）或更大的基本激光输出功率。 OPS激光器的腔内频率转换装置即使在电磁波谱的紫外区域的波长下也能提供约百毫瓦（100mW）或更大的谐波激光输出功率。即使在单轴向模式操作中也可以提供这些高输出功率。 OPS激光器的特征包括用于冷却OPS结构的散热器组件，用于在用于频率转换的光学非线性晶体处提供最佳光束尺寸的折叠谐振器概念，用于频率转换的光学非线性材料的优选选择以及用于放大二次谐波辐射以用于随后转换成第三或第四谐波辐射的复合谐振器设计。

22. 发明授权

US06285702B1 High-power external-cavity optically-pumped semiconductor laser 有权
标题翻译：大功率外腔光泵浦半导体激光器
公开(公告)号：US06285702B1
公开(公告)日：2001-09-04
申请号：US09263325
申请日：1999-03-05
申请人： Andrea Caprara , Juan L. Chilla , Luis A. Spinelli
发明人： Andrea Caprara , Juan L. Chilla , Luis A. Spinelli
IPC分类号： H01S308
CPC分类号： H01S5/041 , H01S3/07 , H01S3/0815 , H01S3/082 , H01S3/094053 , H01S3/09408 , H01S3/09415 , H01S3/105 , H01S3/1083 , H01S3/109 , H01S3/1095 , H01S3/139 , H01S5/02272 , H01S5/024 , H01S5/02423 , H01S5/02484 , H01S5/14 , H01S5/141 , H01S5/18383
摘要： External-cavity optically-pumped semiconductor lasers (OPS-lasers) including an OPS-structure having a mirror-structure surmounted by a surface-emitting, semiconductor multilayer (periodic) gain-structure are disclosed. The gain-structure is pumped by light from diode-lasers. The OPS-lasers can provide fundamental laser output-power of about two Watts (2.0 W) or greater. Intracavity frequency-converted arrangements of the OPS-lasers can provide harmonic laser output-power of about one-hundred milliwatts (100 mW) or greater, even at wavelengths in the ultraviolet region of the electromagnetic spectrum. These high output powers can be provided even in single axial-mode operation. Particular features of the OPS-lasers include a heat sink-assembly for cooling the OPS-structure, a folded resonator concept for providing optimum beam size at optically-nonlinear crystals used for frequency conversion, preferred selection of optically-nonlinear materials for frequency-conversion, and compound resonator designs for amplifying second harmonic-radiation for subsequent conversion to third or fourth harmonic radiation.
摘要翻译：公开了包括具有由表面发射的半导体多层（周期）增益结构所覆盖的镜面结构的OPS结构的外腔光泵浦半导体激光器（OPS-激光器）。增益结构由二极管激光器的光泵浦。 OPS激光器可以提供约2瓦（2.0瓦）或更大的基本激光输出功率。 OPS激光器的腔内频率转换装置即使在电磁波谱的紫外区域的波长下也能提供约百毫瓦（100mW）或更大的谐波激光输出功率。即使在单轴向模式操作中也可以提供这些高输出功率。 OPS激光器的特征包括用于冷却OPS结构的散热器组件，用于在用于频率转换的光学非线性晶体处提供最佳光束尺寸的折叠谐振器概念，用于频率转换的光学非线性材料的优选选择以及用于放大二次谐波辐射以用于随后转换成第三或第四谐波辐射的复合谐振器设计。

23. 发明申请

US20070291801A1 Optically pumped semiconductor laser pumped optical parametric oscillator 有权
标题翻译：光泵浦半导体激光泵浦光参量振荡器
公开(公告)号：US20070291801A1
公开(公告)日：2007-12-20
申请号：US11801538
申请日：2007-05-10
申请人： Andrea Caprara , Luis A. Spinelli , R. Russel Austin
发明人： Andrea Caprara , Luis A. Spinelli , R. Russel Austin
IPC分类号： H01S3/10
CPC分类号： G02F1/39 , H01S3/082 , H01S3/1083 , H01S3/109 , H01S5/14
摘要： An optically pumped semiconductor pumped optical parametric oscillator (OPS-pumped OPO) includes an OPS laser resonator and an OPO resonator A portion the OPS laser resonator axis and the OPO resonator axis are collinear. An optically nonlinear crystal is located in the coaxial portion of the resonators and arranged to frequency divide fundamental radiation generated in the OPS laser resonator into signal and idler radiations. In one arrangement, the OPO laser resonator is also an OPS resonator and is arranged to generate radiation at the wavelength of the signal radiation, with the idler radiation having the difference-frequency wavelength of the signal and fundamental radiations
摘要翻译：光泵浦半导体泵浦光参量振荡器（OPS泵浦OPO）包括OPS激光谐振器和OPO谐振器A部分，OPS激光谐振器轴和OPO谐振器轴共线。光学非线性晶体位于谐振器的同轴部分中，并被布置成将OPS激光谐振器中产生的基本辐射频率分频为信号和惰轮辐射。在一种布置中，OPO激光谐振器也是OPS谐振器，并且被布置成在信号辐射的波长处产生辐射，其中惰轮辐射具有信号的差频波长和基波辐射

24. 发明申请

US20070268950A1 Low power Q-switched solid-state lasers 审中-公开
标题翻译：低功率Q开关固体激光器
公开(公告)号：US20070268950A1
公开(公告)日：2007-11-22
申请号：US11434624
申请日：2006-05-16
申请人： Luis A. Spinelli , Andrea Caprara , John H. Jerman
发明人： Luis A. Spinelli , Andrea Caprara , John H. Jerman
IPC分类号： H01S3/093 , H01S3/08
CPC分类号： H01S3/123 , G02B26/0833 , H01S3/0014 , H01S3/0804 , H01S3/08059 , H01S3/0815 , H01S3/09415
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 of the laser about an axis perpendicular to the axis of the laser resonator. The angular excursion of the tilting 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 is accomplished using a piezoelectrically-driven, MEMS scanner operated in a resonant mode.
摘要翻译：在具有双臂折叠谐振器的微型Q开关脉冲激光器中，Q切换通过使激光器的谐振镜相对于垂直于激光谐振器的轴线的轴线快速且相互倾斜地倾斜来实现。与谐振器的尺寸协调选择倾斜的角度偏移和倾斜的频率，以使由激光器递送的Q开关脉冲中的能量和对称性强度分布最大化。使用以共振模式操作的压电驱动的MEMS扫描器来实现反射镜的快速倒置倾斜。

25. 发明授权

US07130321B2 Intracavity frequency-tripled CW laser with traveling-wave ring-resonator 失效
标题翻译：具有行波环形谐振器的腔内频率三倍CW激光器
公开(公告)号：US07130321B2
公开(公告)日：2006-10-31
申请号：US10826835
申请日：2004-04-16
申请人： Luis A. Spinelli , Andrea Caprara
发明人： Luis A. Spinelli , Andrea Caprara
IPC分类号： H01S3/083 , H01S3/10
CPC分类号： H01S3/083 , H01S3/0813 , H01S3/0816 , H01S3/109 , H01S3/1611 , H01S3/1673 , H01S5/141 , H01S5/183
摘要： A traveling-wave ring laser resonator includes one or more gain-elements for generating fundamental radiation and three optically nonlinear crystals. A portion of the fundamental radiation is converted to second-harmonic radiation in a first of the crystals. Remaining fundamental radiation and the second-harmonic radiation traverse a second of the optically nonlinear crystals where a portion of each is converted to third-harmonic radiation. Fundamental and second-harmonic radiation pass through the third of the optically nonlinear crystals where most of the second-harmonic radiation is converted back to fundamental radiation. The third-harmonic radiation can be delivered from the resonator as output radiation or mixed with the fundamental radiation in a fourth optically nonlinear crystal to generate fourth harmonic radiation. An optical parametric oscillator arrangement is also disclosed.
摘要翻译：行波环形激光谐振器包括用于产生基本辐射的一个或多个增益元件和三个光学非线性晶体。基本辐射的一部分在第一晶体中转换成二次谐波辐射。剩余的基波辐射和二次谐波辐射穿过光学非线性晶体中的第二个，其中一部分被转换为三次谐波辐射。基波和二次谐波辐射通过第三个光学非线性晶体，其中大部分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与第四光学非线性晶体中的基本辐射混合以产生第四谐波辐射。还公开了一种光参量振荡器装置。

26. 发明授权

US06198756B1 CW far-UV laser system with two active resonators 失效
标题翻译： CW远紫外激光系统带有两个有源谐振器
公开(公告)号：US06198756B1
公开(公告)日：2001-03-06
申请号：US09292540
申请日：1999-04-15
申请人： Andrea Caprara , Luis A. Spinelli
发明人： Andrea Caprara , Luis A. Spinelli
IPC分类号： H01S310
CPC分类号： H01S5/141 , G02F1/3534 , H01S3/07 , H01S3/0816 , H01S3/09408 , H01S3/10092 , H01S3/109 , H01S3/1304 , H01S3/1611 , H01S3/1673 , H01S5/041 , H01S5/183
摘要： A laser system includes two separate active laser-resonators. A first of the laser-resonators delivers laser-radiation at a first wavelength, and the second generates fundamental laser-radiation at second wavelength. The second resonator includes an optically-nonlinear crystal. The radiation delivered by the first laser-resonator is mixed in the optically-nonlinear crystal with the fundamental radiation circulating in the second resonator thereby generating radiation having the sum frequency of the first and second wavelengths. In one example, an OPS-laser-resonator having a fundamental wavelength of 976 nm includes a CLBO crystal. 244 nm radiation from an intracavity-frequency-doubled 488 nm argon-ion laser is mixed in the CLBO with the 976 nm radiation to provide 195 nm radiation.
摘要翻译：激光系统包括两个单独的有源激光谐振器。第一激光谐振器以第一波长传递激光辐射，第二激光谐振器在第二波长处产生基本激光辐射。第二谐振器包括光学非线性晶体。由第一激光谐振器传送的辐射在光学非线性晶体中与在第二谐振器中循环的基波辐射混合，从而产生具有第一和第二波长的和频的辐射。在一个示例中，基本波长为976nm的OPS激光谐振器包括CLBO晶体。将来自腔内频率倍增的488nm氩离子激光器的244nm辐射在CLBO中与976nm辐射混合以提供195nm的辐射。

27. 发明授权

US08000372B1 Traveling-wave laser having a resonator including a direction-sensitive interferometer for establishing unidirectional circulation 有权
标题翻译：具有包括用于建立单向循环的方向敏感干涉仪的谐振器的行波激光器
公开(公告)号：US08000372B1
公开(公告)日：2011-08-16
申请号：US12235790
申请日：2008-09-23
申请人： R. Russel Austin , Andrea Caprara
发明人： R. Russel Austin , Andrea Caprara
IPC分类号： H01S3/083 , H01S3/081 , H01S3/08
CPC分类号： H01S3/083 , H01S3/0602 , H01S3/07 , H01S3/094053 , H01S3/09415 , H01S3/10061 , H01S3/1062 , H01S3/1066
摘要： A laser includes a traveling-wave ring-resonator in which one resonator mirror is a mirror of an interferometer arranged such that, when the interferometer is operated in an anti-resonant condition, the mirror has a greater effective reflectivity for clockwise circulation of light in the resonator than for anticlockwise circulation of light in the resonator. There is a difference between the clockwise and anticlockwise effective-reflectivity sufficient that lasing in the resonator is possible only in the clockwise direction.
摘要翻译：激光器包括行波环形谐振器，其中一个谐振镜是干涉仪的反射镜，其布置成使得当干涉仪在反谐振条件下操作时，反射镜具有更大的有效反射率，用于顺时针循环光谐振器比谐振器中的光的逆时针循环。在顺时针和逆时针有效反射率之间存在足够的差异，足以使谐振器中的激光仅在顺时针方向上可能。

28. 发明申请

US20070263680A1 MOPA laser apparatus with two master oscillators for generating ultraviolet radiation 审中-公开
标题翻译：具有两个用于产生紫外线辐射的主振荡器的MOPA激光装置
公开(公告)号：US20070263680A1
公开(公告)日：2007-11-15
申请号：US11586838
申请日：2006-10-26
申请人： Andrei Starodoumov , Andrea Caprara , Norman Hodgson , Andreas Diening
发明人： Andrei Starodoumov , Andrea Caprara , Norman Hodgson , Andreas Diening
IPC分类号： H01S3/10
CPC分类号： G02F1/3534 , G02F2201/16 , H01S3/0092 , H01S3/067 , H01S3/10023 , H01S3/10046 , H01S3/1024 , H01S3/1307 , H01S3/1608 , H01S3/1618 , H01S3/2308 , H01S3/2391
摘要： Laser apparatus including two different, pulsed MOPAs, one having a fundamental wavelength of 1064 nm and the other having a fundamental wavelength of 2114 nm, provide trains of optical pulses. The 1064-nm pulses are frequency-quintupled to a wavelength of 213 nm. The 2114-nm pulses are mixed with the 213-nm pulses to provide pulses having a wavelength of 193 nm. Each MOPA includes a fiber-laser and a bulk amplifier.
摘要翻译：包括两个不同的脉冲MOPA的激光装置，一个基本波长为1064nm，另一个具有2114nm的基波，提供光脉冲列。 1064nm的脉冲频率为五倍，波长为213nm。将2114nm脉冲与213nm脉冲混合以提供波长为193nm的脉冲。每个MOPA包括光纤激光器和大容量放大器。

29. 发明申请

US20070263679A1 MOPA laser apparatus with two master oscillators for generating ultraviolet radiation 有权
标题翻译：具有两个用于产生紫外线辐射的主振荡器的MOPA激光装置
公开(公告)号：US20070263679A1
公开(公告)日：2007-11-15
申请号：US11433937
申请日：2006-05-15
申请人： Andrei Staroudoumov , Andrea Caprara , Norman Hodgson
发明人： Andrei Staroudoumov , Andrea Caprara , Norman Hodgson
IPC分类号： H01S3/10
CPC分类号： G02F1/3534 , G02F2201/16
摘要： Laser apparatus including two different, pulsed MOPAs, one having a fundamental wavelength of 1064 nm and the other having a fundamental wavelength of 1547 nm, provide trains of optical pulses. The 1064-nm pulses are frequency-quadrupled to a wavelength of 266 nm. The 1547-nm pulses are first mixed with the 266-nm pulses to provide pulses having a wavelength of 227 nm. The 227-nm pulses are then mixed with residual 1547-nm pulses from the first mixing to provide 198-nm output pulses of the apparatus.
摘要翻译：包括两个不同的脉冲MOPA的激光装置，一个基本波长为1064nm，另一个具有1547nm的基波，提供光脉冲列。 1064nm的脉冲频率为四倍，波长为266nm。首先将1547nm脉冲与266nm脉冲混合以提供波长为227nm的脉冲。然后将227nm脉冲与来自第一次混合的残留1547nm脉冲混合，以提供装置的198nm输出脉冲。

30. 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。

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