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    Dual band SWIR/MWIR and MWIR1/MWIR2 infrared detectors
    41.
    发明授权
    Dual band SWIR/MWIR and MWIR1/MWIR2 infrared detectors 有权
    双频SWIR / MWIR和MWIR1 / MWIR2红外探测器

    公开(公告)号：US09146157B1

    公开(公告)日：2015-09-29

    申请号：US13427387

    申请日：2012-03-22

    Applicant: Rajesh Rajavel ,  Hasan Sharifi ,  Terence De Lyon ,  Brett Nosho ,  Daniel Yap

    Inventor： Rajesh Rajavel ,  Hasan Sharifi ,  Terence De Lyon ,  Brett Nosho ,  Daniel Yap

    IPC: G01J5/20 ,  G01J3/36 ,  H01L27/146

    CPC classification number: G01J3/36 ,  H01L27/14649 ,  H01L27/14652

    Abstract: A dual band detector includes a substrate, a composite barrier, a first absorber on the substrate and on a light incident side of the composite barrier, the first absorber for detecting first infrared light wavelengths, a second absorber on the composite barrier on a side opposite the light incident side, the second absorber for detecting second infrared light wavelengths, wherein a bandgap of the first absorber is larger than that of the second absorber, wherein the composite barrier includes a first secondary barrier, a primary barrier, and a second secondary barrier, wherein the first and second secondary barriers may have a lower bandgap energy than the primary barrier, wherein the first or the second secondary barrier may have a doping level and type different from that of the primary barrier, and wherein at least the primary barrier blocks majority carriers and allows minority carrier flow.

    Abstract translation: 双波段检测器包括基底，复合屏障，基底上的第一吸收体和复合屏障的光入射侧，用于检测第一红外光波长的第一吸收体，复合势垒上相反一侧的第二吸收体 光入射侧，用于检测第二红外光波长的第二吸收体，其中所述第一吸收体的带隙大于所述第二吸收体的带隙，其中所述复合势垒包括第一次级阻挡层，主阻挡层和第二次级阻挡层 ，其中所述第一和第二次级阻挡层可具有比所述主阻挡层更低的带隙能量，其中所述第一或第二次级阻挡层可具有不同于所述主阻挡层的掺杂水平和类型，并且其中至少所述主阻挡块 多数承运人并允许少数载体流动。

    Parallel modulator photonic link
    42.
    发明授权
    Parallel modulator photonic link 有权
    并联调制器光子链路

    公开(公告)号：US08180183B1

    公开(公告)日：2012-05-15

    申请号：US12176089

    申请日：2008-07-18

    Applicant: Daniel Yap

    Inventor： Daniel Yap

    IPC: G02F1/01 ,  G02F1/035 ,  H01Q13/00 ,  H04B1/04 ,  H04B10/00 ,  H04B10/04 ,  H04B10/12

    CPC classification number: H01Q13/00 ,  G02F1/025 ,  G02F1/0316 ,  G02F2201/127 ,  G02F2201/18 ,  G02F2203/58

    Abstract: An RF photonic link having at least one light source, at least one photodetector, multiple optoelectronic modulators, and an RF waveguide common to each one of said multiple optoelectronic modulators. The multiple optoelectronic modulators are optically arranged in parallel to receive light from said at least one light source and are disposed in said RF waveguide. The RF waveguide, in use, guides an RF electromagnetic field applied to each of the multiple optoelectronic modulators disposed therein, the RF electromagnetic field propagating through the RF waveguide in a direction that is perpendicular to a direction in which an optical field propagates through each of said optoelectronic modulators.

    Abstract translation: 具有至少一个光源，至少一个光电检测器，多个光电子调制器和所述多个光电调制器中的每一个公共的RF波导的RF光子链路。 多个光电子调制器被光学地并行布置以接收来自所述至少一个光源的光并且被布置在所述RF波导中。 RF波导在使用中引导施加到设置在其中的多个光电子调制器中的每一个的RF电磁场，RF电磁场沿着垂直于光场传播通过RF波导的方向的方向传播通过RF波导 说光电调制器。

    Unit-cell array optical signal processor
    43.
    发明授权
    Unit-cell array optical signal processor 有权
    单元阵列光信号处理器

    公开(公告)号：US08019185B2

    公开(公告)日：2011-09-13

    申请号：US12131088

    申请日：2008-06-01

    Applicant: Daniel Yap

    Inventor： Daniel Yap

    IPC: G02F1/035 ,  G02F1/01 ,  G02F1/295 ,  G02B6/26 ,  G02B6/42

    CPC classification number: G02B6/12007 ,  G02B6/29343 ,  G02B6/29383 ,  G02B6/29395 ,  G02F1/3132 ,  G02F2001/212 ,  G02F2203/15 ,  G02F2203/50

    Abstract: This invention provides a versatile unit cell as well as programmable and reconfigurable optical signal processors (such as optical-domain RF filters) that are constructed from arrays of those unit cells interconnected by optical waveguides. Each unit cell comprises an optical microdisk, an optical phase shifter, and at least one input/output optical waveguide, wherein the microdisk and the phase shifter are both optically connected to a common waveguide.

    Abstract translation: 本发明提供了一种多功能单元以及由通过光波导互连的那些单位单元的阵列构成的可编程和可重新配置的光信号处理器（例如光域RF滤波器）。 每个单元电池包括光学微盘，光学移相器和至少一个输入/输出光波导，其中微型盘和移相器都光学连接到公共波导。

    HETEROSTRUCTURE THERMOELECTRIC GENERATOR
    44.
    发明申请
    HETEROSTRUCTURE THERMOELECTRIC GENERATOR 审中-公开
    异质结构热电发生器

    公开(公告)号：US20110139203A1

    公开(公告)日：2011-06-16

    申请号：US12639969

    申请日：2009-12-16

    Applicant: Daniel Yap

    Inventor： Daniel Yap

    IPC: H01L35/30

    CPC classification number: H01L35/30 ,  H02S10/10

    Abstract: A thermoelectric generator element includes a first material configured to generate hole and electron carriers and a second material configured to produce a thermoelectric effect and thermally and physically connected to the first material, wherein an interface between the first material and the second material forms a heterojunction that acts to selectively permit injection of one of either the hole carrier or the electron carrier from the first material to the second material.

    Abstract translation: 热电发电机元件包括被配置为产生空穴和电子载流子的第一材料和被配置为产生热和效应并且热和物理连接到第一材料的第二材料，其中第一材料和第二材料之间的界面形成异质结， 用于选择性地允许将空穴载体或电子载体中的一种从第一材料注入到第二材料。

    Method and apparatus for waveform generation
    45.
    发明授权
    Method and apparatus for waveform generation 失效
    用于波形生成的方法和装置

    公开(公告)号：US07650080B2

    公开(公告)日：2010-01-19

    申请号：US10824197

    申请日：2004-04-13

    Applicant: Daniel Yap ,  Keyvan Sayyah

    Inventor： Daniel Yap ,  Keyvan Sayyah

    IPC: H04B10/04 ,  H04B10/00

    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。

    Low-noise, switchable RF-lightwave synthesizer
    47.
    发明授权
    Low-noise, switchable RF-lightwave synthesizer 有权
    低噪声，可切换的射频光波合成器

    公开(公告)号：US06963442B2

    公开(公告)日：2005-11-08

    申请号：US10417011

    申请日：2003-04-16

    Applicant: Daniel Yap ,  Yiu-Man So

    Inventor： Daniel Yap ,  Yiu-Man So

    IPC: G02F2/00 ,  H01S5/40 ,  G02F2/02 ,  H01S3/13 ,  H04B10/04

    CPC classification number: G02F2/002 ,  H01S5/4006

    Abstract: A frequency synthesizer for generating a multiple tone lightwave signal that can be converted into an RF carrier or local oscillator signal. The frequency synthesizer comprises a multiple mode master laser, two slave lasers injection-locked to the master laser, an optical coupler coupling the optical outputs of the two slave lasers, which produces an optical heterodyne output. The frequency synthesizer further comprises a homodyne phase-lock loop providing feedback control over one of the slave lasers and a heterodyne phase-lock loop providing feedback control over the other slave laser. A local oscillator selector is used to select the optical mode to which one of the slave lasers is locked, thus providing selection of the frequencies of the heterodyne output.

    Abstract translation: 一种用于产生可以转换成RF载波或本地振荡器信号的多音调光波信号的频率合成器。 频率合成器包括多模式主激光器，注入锁定到主激光器的两个从属激光器，耦合两个从属激光器的光输出的光耦合器，其产生光学外差输出。 频率合成器还包括一个零差分锁相环，其提供对从属激光器之一的反馈控制，以及提供对其他从属激光器的反馈控制的外差锁相环。 本地振荡器选择器用于选择一个从属激光器被锁定的光学模式，从而提供外差输出频率的选择。

    Injection-seeding of a multi-tone photonic oscillator
    49.
    发明授权
    Injection-seeding of a multi-tone photonic oscillator 失效
    多色子光子振荡器的注入

    公开(公告)号：US06906309B2

    公开(公告)日：2005-06-14

    申请号：US10116799

    申请日：2002-04-05

    Applicant: Keyvan Sayyah ,  Daniel Yap

    Inventor： Keyvan Sayyah ,  Daniel Yap

    IPC: G01J1/34 ,  G01J5/08 ,  H01S3/10 ,  H04B1/04

    CPC classification number: H04B1/0475

    Abstract: A multi-tone photonic oscillator comprises a laser; an optical modulator coupled to the laser; and a delay line and a photodetector coupled to the optical modulator for generating a delayed electrical signal representation of the output of the optical modulator; wherein the optical modulator being responsible for the delayed electrical signal for generating multiple tones where the frequency intervals of the tones is a function of the amount of delay imposed by the delay line.

    Abstract translation: 一个多色调光子振荡器包括一个激光器; 耦合到激光器的光学调制器; 以及耦合到所述光调制器的延迟线和光电检测器，用于产生所述光调制器的输出的延迟电信号表示; 其中所述光调制器负责延迟的电信号以产生多个音调，其中音调的频率间隔是由延迟线施加的延迟量的函数。

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