公开(公告)号：US06781533B2

公开(公告)日：2004-08-24

申请号：US10281331

申请日：2002-10-25

Applicant: Daniel Yap ,  Henrik T. Jensen

Inventor： Daniel Yap ,  Henrik T. Jensen

IPC: H03M300

CPC classification number: H03M3/496 ,  H03M3/43 ,  H03M3/456

Abstract: A delta-sigma modulator has a first node at which is produced a difference signal equal to the difference in magnitude between a continuous time analog signal and an analog feedback signal generated from a digital output signal; an integrator, coupled to the first node, to integrate the difference signal, thereby producing a first integrated signal; a photonic sampler, coupled to the integrator, to sample the first integrated signal, thereby producing a sampled integral signal; a quantizer, coupled to the sampler, to quantize the sampled integral signal, thereby producing the digital output signal; wherein an output of the quantizer is coupled to the first node through a digital to analog converter.

Abstract translation: Δ-Σ调制器具有第一节点，在该第一节点处产生等于连续时间模拟信号和从数字输出信号产生的模拟反馈信号之间的幅度差的差信号; 耦合到第一节点的积分器，以整合差分信号，从而产生第一集成信号; 耦合到积分器的光子采样器对第一集成信号进行采样，从而产生采样的积分信号; 耦合到采样器的量化器，以量化采样的积分信号，从而产生数字输出信号; 其中所述量化器的输出通过数模转换器耦合到所述第一节点。

公开(公告)号：US06483969B1

公开(公告)日：2002-11-19

申请号：US09452942

申请日：1999-12-01

Applicant: Daniel Yap ,  Anson Au

Inventor： Daniel Yap ,  Anson Au

IPC: G02B642

CPC classification number: G02B6/4204 ,  G02B6/423 ,  G02B6/4249

Abstract: A method and apparatus for aligning an optical fiber to an optoelectronic element. The optical fiber and optoelectronic element are attached to a base. The base is made from a first crystallographic orientation material, and a lens is made from a second crystallographic orientation material. The lens is aligned to the base using the crystallographic orientations, and the optical fiber and optoelectronic element are aligned to the base/lens assembly.

Abstract translation: 一种用于将光纤对准光电元件的方法和装置。 光纤和光电子元件连接到基座。 基座由第一结晶定向材料制成，并且透镜由第二结晶取向材料制成。 透镜使用结晶取向与基底对准，并且光纤和光电元件与底座/镜头组件对准。

公开(公告)号：US06456761B2

公开(公告)日：2002-09-24

申请号：US09920666

申请日：2001-07-31

Applicant: Daniel Yap ,  Anson Au

Inventor： Daniel Yap ,  Anson Au

IPC: G02B632

CPC classification number: G02B6/4204 ,  G02B6/423 ,  G02B6/4249

Abstract: A method and apparatus for aligning an optical fiber to an optoelectronic element. The optical fiber and optoelectronic element are attached to a base. The base is made from a first crystallographic orientation material, and a lens is made from a second crystallographic orientation material. The lens is aligned to the base using the crystallographic orientations, and the optical fiber and optoelectronic element are aligned to the base/lens assembly.

公开(公告)号：US06229189B1

公开(公告)日：2001-05-08

申请号：US09222612

申请日：1998-12-24

Applicant: Daniel Yap ,  Daniel Docter ,  William Stanchina

Inventor： Daniel Yap ,  Daniel Docter ,  William Stanchina

IPC: H01L2714

CPC classification number: H01L31/12 ,  H01L31/03046

Abstract: An optoelectronic device has an epitaxial layer structure that has a substrate and a first layer formed adjacent to the substrate. The first layer may, for example, form a contact layer. A second layer is formed adjacent to the first layer. The second layer forms a selectively optically varying layer, so that during a first state the second layer is optically absorbing and during a second state the layer is optically transparent. A third layer is formed adjacent to the second layer. A fourth layer is formed adjacent to the third layer. The fourth layer is an optically transparent layer. An optoelectronic device and an electronic device may be formed on the same substrate that share the same layers. The layers used depends upon the devices formed.

Abstract translation: 光电子器件具有外延层结构，其具有衬底和邻近衬底形成的第一层。 第一层可以例如形成接触层。 形成与第一层相邻的第二层。 第二层形成选择性光学变化的层，使得在第一状态期间第二层是光学吸收的，并且在第二状态期间该层是光学透明的。 形成与第二层相邻的第三层。 形成与第三层相邻的第四层。 第四层是光学透明层。 可以在共享相同层的相同基板上形成光电子器件和电子器件。 使用的层取决于所形成的装置。

公开(公告)号：US6037719A

公开(公告)日：2000-03-14

申请号：US57894

申请日：1998-04-09

Applicant: Daniel Yap ,  Robert Y. Loo ,  Juan Lam

Inventor： Daniel Yap ,  Robert Y. Loo ,  Juan Lam

IPC: G09G3/22 ,  H01H59/00 ,  G09G3/10

CPC classification number: G09G3/22 ,  H01G5/18 ,  H01G5/38 ,  H01G5/40 ,  G09G2300/08 ,  G09G2300/0842 ,  H01H59/0009

Abstract: A display includes a plurality of light-emitting devices arranged as a matrix of pixels and an addressing circuit coupled to each respective light-emitting device. The addressing circuit includes a plurality of micromachined electromechanical (MEM) switches operable to control the plurality of light-emitting devices. Each MEM switch includes a cantilever beam and a control electrode spaced therefrom to deflect the cantilever beam electrostatically in order to close or open the switch.

Abstract translation: 显示器包括被布置为像素矩阵的多个发光器件和耦合到每个相应的发光器件的寻址电路。 寻址电路包括可操作以控制多个发光器件的多个微加工机电（MEM）开关。 每个MEM开关包括悬臂梁和与其分开的控制电极，以静电偏转悬臂梁，以便关闭或打开开关。

公开(公告)号：US5611008A

公开(公告)日：1997-03-11

申请号：US591854

申请日：1996-01-26

Applicant: Daniel Yap

Inventor： Daniel Yap

IPC: G02B6/42 ,  H01P1/00 ,  H01S5/00 ,  H04B10/02 ,  H04B10/28 ,  G02B6/12

CPC classification number: G02B6/4246 ,  G02B6/423 ,  G02B6/4232

Abstract: A low-loss substrate system is provided for carrying and interconnecting optoelectronic/microwave circuits. The system includes a high-resistivity substrate, e.g., silicon of resistivity >1.times.10.sup.3 ohm-centimeter. A dielectric layer, e.g., silicon dioxide, is preferably deposited over at least a portion of the substrate. Low-loss microwave transmission members and passive microwave components, e.g., capacitors and spiral inductors, can be fabricated directly on the dielectric layer with thin-film techniques. Optoelectronic and microwave integrated circuits are preferably mounted on the substrate system with solder bumps and bonding pads. Other portions of the substrate can define grooves for receiving optical fibers. To enhance optical alignment, the grooves and bonding pads are preferably located with photolithographic techniques. The substrate system is especially suited for optoelectronic/microwave circuits that are realized with hybrid integration structures.

Abstract translation: 提供低损耗衬底系统用于携带和互连光电/微波电路。 该系统包括高电阻率基底，例如电阻率> 1×103欧姆厘米的硅。 绝缘层，例如二氧化硅，优选沉积在衬底的至少一部分上。 可以利用薄膜技术在电介质层上直接制造低损耗微波传输部件和无源微波部件，例如电容器和螺旋电感器。 光电子和微波集成电路优选地安装在具有焊料凸块和焊盘的衬底系统上。 基板的其他部分可以限定用于接收光纤的凹槽。 为了增强光学对准，凹槽和焊盘优选地以光刻技术定位。 衬底系统特别适合用混合集成结构实现的光电/微波电路。

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。

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。

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。

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。