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

US20060007973A1 BROADBAND CASCADE LIGHT EMITTERS 有权
标题翻译：宽带卡通灯发光二极管
公开(公告)号：US20060007973A1
公开(公告)日：2006-01-12
申请号：US10465253
申请日：2003-06-19
申请人： Federico Capasso , Alfred Cho , Claire Gmachl , Milton Peabody , Arthur Sergent , Deborah Sivco , Alexander Soibel
发明人： Federico Capasso , Alfred Cho , Claire Gmachl , Milton Peabody , Arthur Sergent , Deborah Sivco , Alexander Soibel
IPC分类号： H01S5/00
CPC分类号： B82Y20/00 , H01S5/06 , H01S5/1096 , H01S5/22 , H01S5/2214 , H01S5/3422 , H01S5/34306 , H01S5/34313 , H01S2304/02
摘要： A broadband CLE capable of operation simultaneously at multiple wavelengths comprises: a core region including a multiplicity or cascade of stages, each stage including a radiative transition region. A first group of stages emits radiation at a first wavelength and at a first aggregate intensity per group, and a second group of stages emits radiation at a second wavelength and at a second aggregate intensity per group lower than the first intensity. The invention is characterized in that the second group has more stages than said first group, and the per-stage intensity of the first group is greater than that of the second group. This design reduces the difference between said first and second aggregate intensities. In one embodiment, groups that are located at or near to the ends of the cascade have more stages than groups that are centrally located within the cascade regardless of their wavelength. Our invention significantly reduces variations in modal gain across the desired broadband spectrum and produces sufficiently flat gain without requiring elaborate redesign of the stages. These features enable cw operation of a broadband intersubband laser.
摘要翻译：能够在多个波长同时运行的宽带CLE包括：包括多个或级联级的核心区域，每个阶段包括辐射过渡区域。第一组阶段以每组发射第一波长和第一聚集强度的辐射，而第二组阶段以低于第一强度的第二波长发射辐射，并以每组的第二聚集强度发射。本发明的特征在于，第二组具有比所述第一组更多的阶段，并且第一组的每阶段强度大于第二组的每阶段强度。该设计减少了所述第一和第二聚集强度之间的差异。在一个实施例中，位于级联端部处或附近的组具有比级联中心位于不同于它们的波长的级别的级更多的级。我们的发明显着地减少了所需宽带频谱的模态增益的变化，并产生足够平坦的增益，而不需要对级进行精心的重新设计。这些功能可以实现宽带子带间激光器的cw操作。

2. 发明申请

US20050063438A1 Unipolar, intraband optoelectronic transducers with micro-cavity resonators 有权
标题翻译：具有微腔谐振器的单极，内部光电转换器
公开(公告)号：US20050063438A1
公开(公告)日：2005-03-24
申请号：US10651466
申请日：2003-08-30
申请人： Federico Capasso , Alfred Cho , Raffaele Colombelli , Claire Gmachl , Oskar Painter , Arthur Sergent , Deborah Sivco , Kartik Srinivasan , Donald Tennant , Mariano Troccoli
发明人： Federico Capasso , Alfred Cho , Raffaele Colombelli , Claire Gmachl , Oskar Painter , Arthur Sergent , Deborah Sivco , Kartik Srinivasan , Donald Tennant , Mariano Troccoli
IPC分类号： H01S5/00 , H01S5/10 , H01S5/187 , H01S5/32 , H01S5/34 , H01S5/40 , H01S5/42
CPC分类号： B82Y20/00 , H01S5/1042 , H01S5/105 , H01S5/187 , H01S5/3213 , H01S5/3422 , H01S5/4087 , H01S5/42 , H01S2302/02
摘要： An optoelectronic transducer comprises a unipolar, intraband active region and a micro-cavity resonator. The resonator includes a 2D array of essentially equally spaced regions that exhibits resonant modes. Each of the spaced regions has a depth that extends through the active region and has an average refractive index that is different from that of the active region. The refractive index contrast, the spacing of the spaced regions, and the dimensions of the spaced regions are mutually adapted so that the array acts as a micro-cavity resonator and so that at least one frequency of the resonant modes of the array falls within the spectrum of an optoelectronic parameter of the active region (i.e., the gain spectrum where the transducer is a laser; the absorption spectrum where the transducer is a photodetector). In a first embodiment, the transducer is an ISB laser, whereas in a second embodiment it is a unipolar, intraband photodetector. In other embodiments, the laser is a surface-emitting ISB laser and the photodetector is a vertically-illuminated detector. In another embodiment, a nonlinear optical material is optically coupled to the micro-cavity resonator, which in one case allows an ISB laser to exhibit bistable operation.
摘要翻译：光电转换器包括单极性，内部有源区和微腔谐振器。谐振器包括呈现谐振模式的基本上等间隔的区域的2D阵列。每个间隔区域具有延伸穿过有源区域并具有不同于有源区域的平均折射率的深度。折射率对比度，间隔区域的间隔和间隔区域的尺寸相互适应，使得阵列充当微腔谐振器，并且使得阵列的谐振模式的至少一个频率落入有源区的光电参数的光谱（即，换能器是激光的增益光谱;换能器是光电检测器的吸收光谱）。在第一实施例中，换能器是ISB激光器，而在第二实施例中，它是单极的，内部的光检测器。在其他实施例中，激光是表面发射ISB激光器，并且光电检测器是垂直照明的检测器。在另一个实施例中，非线性光学材料光耦合到微腔谐振器，在一种情况下允许ISB激光器呈现双稳态操作。

3. 发明申请

US20050213195A1 PHASE MATCHED PARAMETRIC LIGHT GENERATION IN MONOLITHICALLY INTEGRATED INTERSUBBAND OPTICAL DEVICES 有权
标题翻译：单相集成式互联光学器件中的相位匹配参数光产生
公开(公告)号：US20050213195A1
公开(公告)日：2005-09-29
申请号：US10812328
申请日：2004-03-29
申请人： Alexey Belyanin , Alfred Cho , Claire Gmachl , Oana Malis , Milton Peabody , Arthur Sergent , Deborah Sivco
发明人： Alexey Belyanin , Alfred Cho , Claire Gmachl , Oana Malis , Milton Peabody , Arthur Sergent , Deborah Sivco
IPC分类号： G02F1/017 , G02F1/377 , G02F1/39 , G02F2/02
CPC分类号： B82Y20/00 , G02F1/01708 , G02F1/377 , G02F1/395 , G02F2001/01733 , G02F2001/01775
摘要： An optical device comprises a cavity resonator and an intracavity ridge waveguide. The ridge waveguide includes a monolithically integrated intersubband core region and a nonlinear mixing region (NMR). In response to external pumping energy the core region generates laser light at a first frequency and in a first transverse mode. In response to the laser light the NMR generates parametric light at a second frequency and in a second transverse mode. For phase matching the effective-refractive-index-versus-ridge-width characteristics of the modes of the laser and the parametric light intersect one another at a phase matching width and so that, at greater widths, the effective refractive index of the mode of the higher frequency light is less than that of the lower frequency light. For true phase matching the width of the ridge is made to be essentially equal to the phase matching width.
摘要翻译：光学装置包括空腔谐振器和腔内脊波导。脊波导包括单片集成的子带核心区域和非线性混合区域（NMR）。响应于外部泵浦能量，核心区域以第一频率和第一横向模式产生激光。响应于激光，NMR以第二频率和第二横向模式产生参数光。对于相位匹配，激光器和参量光的模式的有效折射率与脊宽度特性以相位匹配宽度彼此相交，并且使得在较大宽度下，有效折射率的模式较高频率的光小于较低频率的光。为了实现相位匹配，使得脊的宽度基本上等于相位匹配宽度。

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