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公开(公告)号：US06574255B1
公开(公告)日：2003-06-03
申请号：US09263928
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： H01S319
CPC分类号： H01S5/141 , H01S3/109 , H01S5/02484 , H01S5/041 , H01S5/183
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 in pumped by light from diode-lasers. The OPS-lasers can provide fundamental laser output-power of about two Watts (2.0 w) or greater. Inactivity frequency-converted arrangements of the OPS-lasers can provide harmonic laser output-power of about one-hundred milliwatts (100 raw) 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）。 由二极管激光器的光泵浦的增益结构。 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。 即使在电磁波谱的紫外线区域的波长下，OPS-激光器的不活动频率转换装置也可提供大约一百毫瓦（100原始）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。
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公开(公告)号：US06507593B1
公开(公告)日：2003-01-14
申请号：US09963607
申请日：2001-09-24
IPC分类号： H01S310
CPC分类号： H01S5/183 , H01S3/082 , H01S3/09415 , H01S3/105 , H01S3/106 , H01S5/02248 , H01S5/041 , H01S5/0654 , H01S5/1039 , H01S5/141 , H01S5/142 , H01S2301/163 , H01S2301/166
摘要： A laser for delivering laser radiation at a selected one of a plurality of equally-spaced frequencies extending over a frequency range includes a laser resonator defined by two end mirrors. The resonator includes a surface-emitting semiconductor multilayer gain-structure in optical contact with one of the mirrors. A third mirror located in the laser resonator forms an etalon with that mirror. The third mirror is movable for adjusting a peak transmission frequency of the etalon to align with the selected frequency. The resonator end mirrors are spaced apart by an optical distance selected such that the frequency and frequency-spacing of possible longitudinal lasing modes of the resonator correspond with the plurality of equally-spaced frequencies. When the peak transmission frequency of the etalon is aligned with the selected frequency the laser resonator delivers radiation in a single longitudinal mode at the selected frequency.
摘要翻译： 用于以在频率范围上延伸的多个等间隔的频率中的选定的一个传送激光辐射的激光器包括由两个后视镜限定的激光谐振器。 谐振器包括与其中一个反射镜光学接触的表面发射半导体多层增益结构。 位于激光谐振器中的第三个反射镜与该反射镜形成标准具。 第三反射镜是可移动的，用于调节标准具的峰值传输频率以与所选择的频率对准。 共振器端反射镜被选择的光学距离间隔开，使得谐振器的可能的纵向激光模式的频率和频率间隔对应于多个等间隔的频率。 当标准具的峰值传输频率与所选频率对准时，激光谐振器以所选频率在单个纵向模式中传送辐射。
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公开(公告)号：US06298076B1
公开(公告)日：2001-10-02
申请号：US09264159
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： H01S304
CPC分类号： H01S5/141 , H01S3/109 , H01S5/02484 , H01S5/041 , H01S5/183
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。
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公开(公告)号：US6097742A
公开(公告)日：2000-08-01
申请号：US263380
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
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.
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公开(公告)号：US07633562B2
公开(公告)日：2009-12-15
申请号：US12012966
申请日：2008-02-06
IPC分类号： H01S3/08
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。
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公开(公告)号：US07355657B2
公开(公告)日：2008-04-08
申请号：US11011075
申请日：2004-12-14
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。
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公开(公告)号：US5991318A
公开(公告)日：1999-11-23
申请号：US179022
申请日：1998-10-26
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： G02F1/37 , H01S3/108 , H01S3/109 , H01S5/024 , H01S5/04 , H01S5/06 , H01S5/14 , H01S5/18 , H01S5/183 , H01S5/323 , H01S3/10
CPC分类号： H01S5/041 , H01S5/141 , H01S3/082 , H01S3/09415 , H01S3/1083 , H01S3/109 , H01S5/18383
摘要： An intracavity, frequency-doubled, external-cavity, optically-pumped semiconductor laser in accordance with the present invention includes a monolithic surface-emitting semiconductor layer structure including a Bragg mirror portion and a gain portion. An external mirror and the Bragg-mirror portion define a laser resonant-cavity including the gain-portion of the semiconductor layer structure. A birefringent filter is located in the resonant-cavity for selecting a frequency of the laser-radiation within a gain bandwidth characteristic of semiconductor structure. An optically-nonlinear crystal is located in the resonant-cavity between the birefringent filter and the external mirror and arranged to double the selected frequency of laser-radiation.
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公开(公告)号：US07643530B2
公开(公告)日：2010-01-05
申请号：US11133028
申请日：2005-05-19
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： H01S3/091
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能够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。
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公开(公告)号：US07244028B2
公开(公告)日：2007-07-17
申请号：US11011736
申请日：2004-12-14
IPC分类号： G03B21/14
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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公开(公告)号：US07180928B2
公开(公告)日：2007-02-20
申请号：US10695583
申请日：2003-10-28
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： H01S3/91
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能够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。
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