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公开(公告)号：US09310471B2
公开(公告)日：2016-04-12
申请号：US14317695
申请日：2014-06-27
申请人： HRL LABORATORIES LLC
CPC分类号： G01S7/4817 , G01S7/4808 , G01S17/02 , G01S17/325 , G01S17/89 , H01S5/021 , H01S5/0215 , H01S5/0262 , H01S5/12
摘要： A chip-scale scanning lidar includes a two dimensional (2D) scanning micromirror for a transmit beam and a 2D scanning micromirror for a receive beam, a laser diode and a photodetector, a first waveguide and first grating outcoupler coupled to a front facet of the laser diode, a second waveguide and a second grating outcoupler coupled to a rear facet of the laser diode on a substrate. A first fixed micromirror, a second micromirror, a third micromirror, and a focusing component are in a dielectric layer bonded to the substrate over the laser diode and photodetector. The photodetector is optically coupled to the second fixed micromirror and the third fixed micromirror for coherent detection.
摘要翻译： 芯片级扫描激光雷达包括用于发射光束的二维（2D）扫描微镜和用于接收光束的2D扫描微镜，激光二极管和光电检测器，第一波导和第一光栅输出耦合器，其耦合到 激光二极管，第二波导和第二光栅输出耦合器，耦合到衬底上的激光二极管的后面。 第一固定微镜，第二微镜，第三微镜和聚焦组件位于激光二极管和光电检测器上结合到衬底的电介质层中。 光电检测器光耦合到第二固定微镜和第三固定微镜用于相干检测。
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公开(公告)号：US08750717B1
公开(公告)日：2014-06-10
申请号：US14010938
申请日：2013-08-27
发明人： Daniel Yap , Keyvan Sayyah
CPC分类号： H04B10/505 , G02F2/02 , H01S3/0057 , H03B21/02 , H03B28/00
摘要： A spread spectrum waveform generator has a photonic oscillator and an optical heterodyne synthesizer. The photonic oscillator is a multi-tone optical comb generator for generating a series of RF comb lines on an optical carrier. The optical heterodyne synthesizer includes first and second phase-locked lasers, where the first laser feeds the multi-tone optical comb generator and the second laser is a single tone laser whose output light provides a frequency translation reference. At least one photodetector is provided for heterodyning the frequency translation reference with the optical output of the photonic oscillator to generate a spread spectrum waveform. A receiver pre-processor may be provided to operate on the spread spectrum waveform.
摘要翻译： 扩频波形发生器具有光子振荡器和光学外差合成器。 光子振荡器是用于在光学载体上产生一系列RF梳状线的多色调光发生器。 光学外差合成器包括第一和第二锁相激光器，其中第一激光器馈送多色光梳发生器，第二激光器是其输出光提供频率转换参考的单色激光器。 提供至少一个光电检测器用于使频率转换参考用光子振荡器的光输出进行外差以产生扩频波形。 可以提供接收机预处理器来对扩频波形进行操作。
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公开(公告)号：US09800018B2
公开(公告)日：2017-10-24
申请号：US15048440
申请日：2016-02-19
IPC分类号： H01S5/06 , H01S5/022 , H01S5/024 , H01S5/028 , H01S5/042 , H01S5/0683 , H01S5/10 , H01S5/125 , H01S5/343 , H01S5/40 , H01S3/23 , H01S5/00 , H01S5/068 , H01S5/50 , H01S5/026 , H01S5/22 , H01S5/187 , H01S5/20
CPC分类号： H01S5/0604 , H01S3/2383 , H01S5/0092 , H01S5/0228 , H01S5/02453 , H01S5/0261 , H01S5/0264 , H01S5/028 , H01S5/0287 , H01S5/0425 , H01S5/06821 , H01S5/0683 , H01S5/1014 , H01S5/1028 , H01S5/1064 , H01S5/125 , H01S5/187 , H01S5/2013 , H01S5/22 , H01S5/34333 , H01S5/4025 , H01S5/4031 , H01S5/50 , H01S2301/166
摘要： A chip scale ultra violet laser source includes a plurality of laser elements on a substrate each including a back cavity mirror, a tapered gain medium, an outcoupler, a nonlinear crystal coupled to the outcoupler with a front facet that has a first coating that is anti-reflectivity (AR) to a fundamental wavelength of the laser element and high reflectivity (HR) to ultra violet wavelengths, and has an exit facet that has a second coating that has HR to a fundamental wavelength of the laser element and AR to the ultra violet wavelengths, a photodetector coupled to the outcoupler, a phase modulator coupled to the photodetector and coupled to the back cavity mirror, and a master laser diode on the substrate coupled to the phase modulator of each laser element. Each laser element emits an ultra violet beamlet and is frequency and phase locked to the master laser diode.
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公开(公告)号：US20150378012A1
公开(公告)日：2015-12-31
申请号：US14317695
申请日：2014-06-27
申请人： HRL LABORATORIES LLC
CPC分类号： G01S7/4817 , G01S7/4808 , G01S17/02 , G01S17/325 , G01S17/89 , H01S5/021 , H01S5/0215 , H01S5/0262 , H01S5/12
摘要： A chip-scale scanning lidar includes a two dimensional (2D) scanning micromirror for a transmit beam and a 2D scanning micromirror for a receive beam, a laser diode and a photodetector, a first waveguide and first grating outcoupler coupled to a front facet of the laser diode, a second waveguide and a second grating outcoupler coupled to a rear facet of the laser diode on a substrate. A first fixed micromirror, a second micromirror, a third micromirror, and a focusing component are in a dielectric layer bonded to the substrate over the laser diode and photodetector. The photodetector is optically coupled to the second fixed micromirror and the third fixed micromirror for coherent detection.
摘要翻译： 芯片级扫描激光雷达包括用于发射光束的二维（2D）扫描微镜和用于接收光束的2D扫描微镜，激光二极管和光电检测器，第一波导和第一光栅输出耦合器，其耦合到 激光二极管，第二波导和第二光栅输出耦合器，耦合到衬底上的激光二极管的后面。 第一固定微镜，第二微镜，第三微镜和聚焦组件位于激光二极管和光电检测器上结合到衬底的电介质层中。 光电检测器光耦合到第二固定微镜和第三固定微镜用于相干检测。
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公开(公告)号：US08908251B2
公开(公告)日：2014-12-09
申请号：US13754140
申请日：2013-01-30
IPC分类号： G02F1/03 , H01P7/00 , G02F1/29 , H01L31/0216 , H01P7/08
CPC分类号： H04B10/615 , B82Y20/00 , B82Y40/00 , G02B1/002 , G02F1/0018 , G02F1/0316 , G02F1/19 , G02F1/218 , G02F1/2257 , G02F1/29 , G02F1/292 , G02F2001/0151 , G02F2001/212 , G02F2001/291 , G02F2202/30 , G02F2203/12 , G02F2203/13 , G02F2203/15 , G02F2203/24 , H01L21/84 , H01L29/66151 , H01L31/02161 , H01P7/082 , H01P7/088 , H01Q15/002 , H01Q15/0086
摘要： A tunable metamaterial has a two dimensional array of resonant annular ring elements; and a plurality of voltage controllable electrical tuning elements disposed in or adjacent openings in each of said ring elements, each of said voltage controllable electrical tuning element ohmically contacting portions of only one of said ring elements. The voltage controllable electrical tuning elements may comprise highly doped semiconductor tunnel diodes, or the charge accumulation layer at the semiconductor/insulator interface of a metal-insulator-semiconductor structure, or nanoelectromechanical (NEMs) capacitors. The tunable metamaterial may be used, for example, in an optical beam steering device using the aforementioned tunable optical metamaterial in which a free-space optical beam is coupled into a receiving portion of a plane of the optical metamaterial and is steered out of a transmitter portion of the plane of the optical metamaterial in controllable azimuthal and elevational directions. The tunable metamaterial additionally has other applications.
摘要翻译： 可调谐超材料具有谐振环形环元件的二维阵列; 以及设置在每个所述环形元件中或相邻开口中的多个电压可控电调谐元件，每个所述电压可控电调谐元件欧姆接触仅一个所述环形元件的部分。 电压可控电调谐元件可以包括高度掺杂的半导体隧道二极管，或金属 - 绝缘体 - 半导体结构的半导体/绝缘体界面处的电荷累积层，或纳米机电（NEM））电容器。 可调谐超材料可以用于例如使用上述可调谐光学超材料的光束转向装置，其中自由空间光束耦合到光学超材料的平面的接收部分中并被转向发射器 光学超材料的平面部分在可控的方位角和高度方向。 可调谐超材料另外还有其他应用。
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公开(公告)号：US20140211298A1
公开(公告)日：2014-07-31
申请号：US13754140
申请日：2013-01-30
IPC分类号： G02F1/29 , H01L31/0216
CPC分类号： H04B10/615 , B82Y20/00 , B82Y40/00 , G02B1/002 , G02F1/0018 , G02F1/0316 , G02F1/19 , G02F1/218 , G02F1/2257 , G02F1/29 , G02F1/292 , G02F2001/0151 , G02F2001/212 , G02F2001/291 , G02F2202/30 , G02F2203/12 , G02F2203/13 , G02F2203/15 , G02F2203/24 , H01L21/84 , H01L29/66151 , H01L31/02161 , H01P7/082 , H01P7/088 , H01Q15/002 , H01Q15/0086
摘要： A tunable metamaterial has a two dimensional array of resonant annular ring elements; and a plurality of voltage controllable electrical tuning elements disposed in or adjacent openings in each of said ring elements, each of said voltage controllable electrical tuning element ohmically contacting portions of only one of said ring elements. The voltage controllable electrical tuning elements may comprise highly doped semiconductor tunnel diodes, or the charge accumulation layer at the semiconductor/insulator interface of a metal-insulator-semiconductor structure, or nanoelectromechanical (NEMs) capacitors. The tunable metamaterial may be used, for example, in an optical beam steering device using the aforementioned tunable optical metamaterial in which a free-space optical beam is coupled into a receiving portion of a plane of the optical metamaterial and is steered out of a transmitter portion of the plane of the optical metamaterial in controllable azimuthal and elevational directions. The tunable metamaterial additionally has other applications.
摘要翻译： 可调谐超材料具有谐振环形环元件的二维阵列; 以及设置在每个所述环形元件中或相邻开口中的多个电压可控电调谐元件，每个所述电压可控电调谐元件欧姆接触仅一个所述环形元件的部分。 电压可控电调谐元件可以包括高度掺杂的半导体隧道二极管，或金属 - 绝缘体 - 半导体结构的半导体/绝缘体界面处的电荷累积层，或纳米机电（NEM））电容器。 可调谐超材料可以用于例如使用上述可调谐光学超材料的光束转向装置，其中自由空间光束耦合到光学超材料的平面的接收部分中并被转向发射器 光学超材料的平面部分在可控的方位角和高度方向。 可调谐超材料另外还有其他应用。
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