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公开(公告)号：US10269996B1
公开(公告)日：2019-04-23
申请号：US15222886
申请日：2016-07-28
Applicant: HRL Laboratories, LLC
Inventor： Hasan Sharifi , Rajesh D. Rajavel , Terence J. De Lyon , Daniel Yap
IPC: H01L21/00 , H01L31/0392 , H01L21/66 , H01L31/0304 , H01L31/0224 , H01L31/109 , H01L31/18 , G01B11/14
Abstract: A position sensitive detector includes a substrate, an absorber layer on the substrate, a barrier layer on the absorber layer, a contact layer on the barrier layer, and a first contact and a second contact on the contact layer. The barrier layer prevents a flow of majority carriers from the absorber layer to the contact layer. The position sensitive detector is sensitive to a lateral position between the first contact and the second contact of incident light on the contact layer.
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公开(公告)号：US10247999B1
公开(公告)日：2019-04-02
申请号：US15495859
申请日：2017-04-24
Applicant: HRL Laboratories, LLC
Inventor： Daniel Yap , James H. Schaffner
Abstract: An electro-optic modulation structure comprises a first electrode and a second electrode and a first electro-optic strip; wherein the first electrode has a slab portion and a first ridge protruding from the slab portion of the first electrode, and the second electrode has a slab portion and a first ridge protruding from the slab portion of the second electrode, the first protruding ridge of the first electrode and the first protruding ridge of the second electrode being disposed on opposite sides of the first electro-optic strip and both protruding ridges abut the first electro-optic strip.
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公开(公告)号：US10198790B1
公开(公告)日：2019-02-05
申请号：US15213228
申请日：2016-07-18
Applicant: HRL Laboratories, LLC
Inventor： Yuri Owechko , Daniel Yap , Oleg M. Efimov
Abstract: Described in this disclosure is a space-variant Multi-domain Foveated Compressive Sensing (MFCS) system for adaptive imaging with variable resolution in spatial, polarization, and spectral domains simultaneously and with very low latency between multiple adaptable regions of interest (ROIs) across the field of view (FOV). The MFCS system combines space-variant foveated compressive sensing (FCS) imaging covered by a previous disclosure with a unique dual-path high efficiency optical architecture for parallel multi-domain compressive sensing (CS) processing. A single programmable Digital Micromirror Device (DMD) micro-mirror array is used at the input aperture to adaptively define and vary the resolution of multiple variable-sized ROIs across the FOV, encode the light for CS reconstruction, and adaptively divide the input light among multiple optical paths using complementary measurement codes, which can then be reconstructed as desired.
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公开(公告)号：US10050704B1
公开(公告)日：2018-08-14
申请号：US15240670
申请日：2016-08-18
Applicant: HRL Laboratories, LLC
Inventor： Daniel Yap
IPC: H04B10/079 , H01S5/065 , H01S5/06 , H01S5/0687 , G02B6/293 , G02B6/28 , G02B6/12
Abstract: Several embodiments of a system and method of an optical-frequency (OF) synthesizer are disclosed that produces an optical frequency (OF) tone derived from a dispersive resonator and phase-locking to a radio frequency (RF) tone to achieve high precision. Thus, the stability of the synthesized OF tone is related to the stability of the RF tone. A frequency control word provides for a wide range of programmability to the frequency of the output OF tone. The OF synthesizer establishes the absolute value of the optical frequency of its output tone by making use of a dispersive optical resonator and applying appropriate corrections obtained dynamically by interrogating the comb lines. The reference resonator defines a semi-dormant OF reference comb, wherein the lines of that reference comb are associated with the modes of the reference resonator. Several selected modes of this reference resonator are interrogated by locking the frequency of light emitted by lasers to those resonator modes. The few selected resonator modes are the active lines of this reference comb and the other lines of this comb remain dormant, until activated, thus making the OF synthesizer a power efficient synthesizer. Concepts are presented to integrate the various components of this OF synthesizer on a chip-scale monolithic substrate.
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公开(公告)号：US09903757B1
公开(公告)日：2018-02-27
申请号：US15275172
申请日：2016-09-23
Applicant: HRL Laboratories, LLC
Inventor： Daniel Yap , Brian Neff
CPC classification number: G01J3/108 , G01J3/0208 , G01J3/42 , G01J2003/102 , G01N21/35 , G01N21/39 , G01N21/94 , G01N2021/399 , G01N2201/067
Abstract: A sensor includes a plurality of transmitter units, a photodetector, and an optical system coupled to the plurality of transmitter units and the photodetector. Each of the transmitter units simultaneously transmits a light beam having a plurality of wavelengths, the optical system directs the light beam from each of the transmitter units onto a same illuminated spot on a probed surface, and the optical system collects light from the same illuminated spot and directs the light to the photodetector.
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Patent Agency Ranking
公开(公告)号：US08750717B1
公开(公告)日：2014-06-10
申请号：US14010938
申请日：2013-08-27
Applicant: HRL Laboratories, LLC
Inventor： Daniel Yap , Keyvan Sayyah
CPC classification number: H04B10/505 , G02F2/02 , H01S3/0057 , H03B21/02 , H03B28/00
Abstract: 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.
Abstract translation: 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：US11769843B1
公开(公告)日：2023-09-26
申请号：US16888480
申请日：2020-05-29
Applicant: HRL Laboratories, LLC
Inventor： Daniel Yap , Florian G. Herrault , Christopher S. Roper , Partia Naghibi
IPC: H01L31/0232 , H01L33/64 , G02B6/42
CPC classification number: H01L31/02327 , G02B6/42 , H01L31/02325 , H01L33/64
Abstract: A photonic module and a method of making same, the module having one or more optoelectronic chips, such as a laser diode typically having six sides, with each optoelectronic chip having two opposing sides (a first side and a second side) abutting and electrically connected to metal regions (preferably electro-formed), the two metal regions are physically distinct and electrically separate from each other, the two electro-formed metal regions serving, in use, as heat spreaders for conducting heat away from the optoelectronic chip.
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公开(公告)号：US11251209B1
公开(公告)日：2022-02-15
申请号：US14213809
申请日：2014-03-14
Applicant: HRL LABORATORIES LLC
Inventor： Daniel Yap , Rajesh D. Rajavel , Sarabjit Mehta , Terence J. De Lyon , Hasan Sharifi , Pierre-Yves Delaunay
IPC: H01L27/144 , H01L31/0352 , H01L31/18 , H01L31/101 , H01L31/0236
Abstract: An infrared photo-detector array and a method for manufacturing it are disclosed. The infrared photo-detector array contains a plurality of pyramid-shaped structures, a first light-absorbing material supporting the plurality of the pyramid-shaped structure, a carrier-selective electronic barrier supporting the first light-absorbing material, a second light-absorbing material supporting the carrier-selective electronic barrier, and a metal reflector supporting the second light-absorbing material, wherein the plurality of the pyramid shaped structures are disposed on the side of the photo-detector array facing the incident light to be detected and the metal reflector is disposed on the opposite side of the photo-detector array. The method disclosed teaches how to manufacture the infrared photo-detector array.
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公开(公告)号：US11108211B1
公开(公告)日：2021-08-31
申请号：US14033877
申请日：2013-09-23
Applicant: HRL Laboratories, LLC
Inventor： Daniel Yap , Monica Minden
Abstract: The invention is a Demodulator for an Optical Analog Pulse Position Modulated signal suitable for inclusion in receivers for Free Space Optical communication systems. In one embodiment the Demodulator may use the pulse position modulated optical information signal and the clock signal with different wavelengths. By proper biasing of a Semiconductor Optical Amplifier and selection of wavelengths for the information signal and the clock signal, the performance of the Demodulator is made insensitive to noise in the received signals.
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公开(公告)号：US10903261B1
公开(公告)日：2021-01-26
申请号：US14214139
申请日：2014-03-14
Applicant: HRL LABORATORIES LLC
Inventor： Daniel Yap , Rajesh D. Rajavel
IPC: H01L27/14 , H01L27/146 , H04N5/33 , H04N5/378
Abstract: An infrared photo-detector and a method for manufacturing it are disclosed. The infrared photo-detector contains a collector region, a first absorber layer absorbing a first wavelength band of incident light, wherein the first absorber layer is disposed between the collector region and the incident light, a second absorber layer absorbing a second wavelength band of light, wherein the first absorber layer is disposed between the second absorber layer and the incident light, at least one first electrical contact coupled with the first absorber layer, at least one second electrical contact coupled with the second absorber layer and at least one third electrical contact coupled with the collector, wherein the at least one third electrical contact provides a current associated with absorbed light of the first wavelength band and absorbed light of the second wavelength band. The method disclosed teaches how to manufacture the infrared photo-detector.
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