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. 发明申请

WO2008010966A2 HIGH POWER AND HIGH BRIGHTNESS DIODE-LASER ARRAY FOR MATERIAL PROCESSING APPLICATIONS 审中-公开
标题翻译：高功率和高亮度二极管激光器阵列用于材料加工应用
公开(公告)号：WO2008010966A2
公开(公告)日：2008-01-24
申请号：PCT/US2007016070
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
CPC分类号： B23K26/0613 , G02B19/0014 , G02B19/0028 , G02B19/0057 , G02B27/0905 , G02B27/0994 , G02B27/283 , H01S5/005 , H01S5/0071 , H01S5/02248 , H01S5/02252 , H01S5/02272 , H01S5/02484 , H01S5/4012 , H01S5/4018 , H01S5/4025 , H01S5/4043 , H01S5/4056 , H01S5/4087
摘要： Arrangements for combination and fast-axis alignment of fast-axes of diode-laser beams are disclosed. Alignment arrangements include providing each diode-laser with a corresponding alignable fast-axis collimating lens, providing individually alignable mirrors for steering an re-orienting beams from each diode-laser, and providing single diode-laser slab-modules 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.
摘要翻译：公开了二极管激光束的快速轴组合和快速对准的布置。对准布置包括为每个二极管激光器提供相应的可对准的快轴准直透镜，提供用于转向来自每个二极管激光器的重定向光束的单独对准的反射镜，并提供单个二极管激光板模块，其中二极管激光器梁可以预先对齐到公共传播轴方向，并且其中板的边缘和表面可以用于对准梁的快轴和慢轴。光束组合方法包括二色性元件，偏振敏感元件和光纤束的组合。

2. 发明申请

WO2009042024A3 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：WO2009042024A3
公开(公告)日：2009-07-02
申请号：PCT/US2008010215
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： H01S3/00 , G02B27/10 , G02F1/35
CPC分类号： H01S3/06754 , G02B6/29352 , H01S3/005
摘要： ,MOPA laser apparatus includes a master oscillator (22) and a preamplifier (24) 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 (26) 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激光装置包括提供一列光脉冲的主振荡器（22）和前置放大器（24）。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（26）将进入列车中的每个脉冲分成两个脉冲并相对于该脉冲延迟一个脉冲。另一方面，一个脉冲的一部分和另一个脉冲的一部分由光纤PRF乘法装置作为输出脉冲串传送，其PRF等于输入脉冲串的PRF的两倍。

3. 发明申请

WO2006041619A3 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：WO2006041619A3
公开(公告)日：2006-07-27
申请号：PCT/US2005033441
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 , G02B19/00 , H01S5/327
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 (20) in accordance with the present invention includes a II-VI semiconductor laser chip (22). A plurality of InGaN LEDs (50) provides optical pump light for optically pumping the laser chip (22). An optical arrangement (52, 56) collects the pump light from the LEDs (50) and directs the pump light to light-concentrating optical device (44) that is either directly or indirectly in optical contact with the laser chip (22) and is arranged to concentrate the pump light (54C) on the chip (22) with maximized numerical aperture (NA). In one example of the laser, the light-concentrating device (44) 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（20）包括II-VI半导体激光器芯片（22）。多个InGaN LED（50）提供用于光学泵浦激光芯片（22）的光泵浦光。光学装置（52,56）收集来自LED（50）的泵浦光，并将泵浦光引导到与激光芯片（22）直接或间接光学接触的聚光光学装置（44），并且是布置成以最大的数值孔径（NA）将泵浦光（54C）集中在芯片（22）上。在激光器的一个示例中，聚光装置（44）是浸没透镜。在激光的另一示例中，聚光装置是锥形光管。

4. 发明申请

WO2006065537A3 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：WO2006065537A3
公开(公告)日：2006-09-08
申请号：PCT/US2005043306
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光源，该光源包括以多个横向模式传送激光辐射的OPS激光器（多横向模式OPS激光器）。显示器包括空间光调制器，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。投影光学器件将空间调制光投影到要显示图像的屏幕上。在一个例子中，OPS激光器是二极管激光器阵列泵浦的OPS激光器，并且是三个激光器之一，一个提供红光，一个提供蓝光，另一个提供绿光。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。通过周期性地打开和关闭二极管激光器阵列，OPS激光器被直接时间调制。

5. 发明申请

WO2012122012A2 HIGH-POWER CW FIBER-LASER 审中-公开
标题翻译：大功率CW光纤激光器
公开(公告)号：WO2012122012A2
公开(公告)日：2012-09-13
申请号：PCT/US2012027445
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
CPC分类号： H01S3/042 , H01S3/0407 , H01S3/06704 , H01S3/06733 , H01S3/0804 , H01S3/08059 , H01S3/094015 , H01S3/09415 , H01S3/105 , H01S3/1062 , H01S3/1618 , H01S3/173 , H01S5/4012 , H01S2301/03
摘要： A CW fiber- laser includes a gain fiber having a reflector proximity- coupled to one end, with the other end left uncoated. A laser resonator is defined by the reflector and the uncoated end of the gain-fiber. Pump-radiation from two fast-axis diode-laser bar stacks is combined and focused into the uncoated end of the gain-fiber for energizing the fiber. Laser radiation resulting from the energizing is delivered from the uncoated end of the gain-fiber and separated from the pump-radiation by a dichroic mirror.
摘要翻译： CW光纤激光器包括增益光纤，其具有与一端耦合的反射器，另一端未涂覆。激光谐振器由反射器和增益光纤的未涂覆端限定。来自两个快轴二极管激光棒叠层的泵浦辐射被组合并聚焦到增益光纤的未涂覆端，用于激励光纤。由激励产生的激光辐射从增益光纤的未涂覆端传送并通过分色镜与泵浦辐射分离。

6. 发明申请

WO2006065524A3 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：WO2006065524A3
公开(公告)日：2006-09-14
申请号：PCT/US2005043093
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 , H04N9/3129
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至少一个用于传送光束的激光器。该显示器包括光束均化器和聚光透镜。提供一种扫描装置，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。所扫描的光束通过光束均化器均化并且空间光调制器被布置为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射到屏幕上。扫描提供了屏幕上的均匀化扫描光束具有小于光束原始相干半径的相干半径。降低的相干半径有助于最小化屏幕上显示的图像中的散斑对比度。该屏幕包括一个或多个特征，该特征为显示图像中的斑点对比度提供最小化提供了进一步的贡献。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。

7. 发明申请

WO2011031718A3 OPTICALLY-PUMPED EXTERNAL-CAVITY SURFACE-EMITTING SEMICONDUCTOR LASERS WITH FRONT-COOLED GAIN-STRUCTURES 审中-公开
标题翻译：具有前冷却增益结构的光泵浦外壳表面发射半导体激光器
公开(公告)号：WO2011031718A3
公开(公告)日：2012-06-28
申请号：PCT/US2010048076
申请日：2010-09-08
申请人： COHERENT INC , GOVORKOV SERGEI V , AUSTIN R RUSSEL
发明人： GOVORKOV SERGEI V , AUSTIN R RUSSEL
IPC分类号： H01S5/183 , H01S5/04 , H01S5/14
CPC分类号： H01S5/183 , H01S3/07 , H01S3/08054 , H01S3/0816 , H01S3/083 , H01S3/1062 , H01S3/1066 , H01S5/0213 , H01S5/0217 , H01S5/02484 , H01S5/041 , H01S5/14
摘要： A semiconductor gain-structure functions as a gain-element in a laser-resonator. The gain- structure is bonded to a diamond heat-spreader that is peripherally cooled by a heat-sink configured to allow access to the gain-structure by laser-radiation circulating in the laser- resonator. In one example, the gain-structure is used as a transmissive gain-structure in a traveling-wave ring-resonator. In another example, the gain- structure surmounts a mirror- structure which functions as an end-mirror of a standing- wave laser-resonator.
摘要翻译：半导体增益结构在激光谐振器中用作增益元件。增益结构被结合到金刚石散热器，该金刚石散热器通过被配置为允许通过在激光谐振器中循环的激光辐射而进入增益结构的散热器周边地冷却。在一个示例中，增益结构用作行波环形谐振器中的透射增益结构。在另一个例子中，增益结构超越了用作驻波激光谐振器的端镜的镜面结构。

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