公开(公告)号：US20050013612A1

公开(公告)日：2005-01-20

申请号：US10786721

申请日：2004-02-24

Applicant: Daniel Yap

Inventor： Daniel Yap

IPC: G02F2/00 ,  H04B10/155 ,  H04J14/00 ,  H04J14/02

CPC classification number: H04B10/506 ,  G02F2/002 ,  H04B10/50572 ,  H04B10/50577 ,  H04J14/02 ,  H04J14/0298

Abstract: A multi-wavelength photonic oscillator has a plurality of lasers each emitting light at a different frequency. An optical wavelength multiplexer combines the light emitted by the plurality of lasers at an output thereof as a set of optical wavelengths. An optical modulator is arranged in a feedback loop and coupled to receive light at the output of the optical wavelength multiplexer, the feedback loop further including an optical tap for coupling at least a subset of said set of optical wavelengths to at least one optical output of the multi-wavelength photonic modulator; at least one optical channel having an associated photodetector arranged to receive light from the optical tap via the at least one optical channel; and an electronic loop portion coupled to receive output from the at least one associated photodetector and to provide an input for the optical modulator.

Abstract translation: 多波长光子振荡器具有多个激光器，每个激光器以不同的频率发光。 光学波长多路复用器将其输出处的多个激光器发射的光合成为一组光波长。 光学调制器布置在反馈回路中并被耦合以在光学波长多路复用器的输出端处接收光，反馈环路还包括用于将所述一组光波长的至少一个子集耦合到至少一个光学输出的光学抽头 多波长光子调制器; 至少一个光通道，其具有相关联的光电检测器，布置成经由所述至少一个光通道接收来自所述光学抽头的光; 以及电子回路部分，其被耦合以接收来自所述至少一个相关联的光电检测器的输出并提供用于所述光学调制器的输入。

公开(公告)号：US06724523B2

公开(公告)日：2004-04-20

申请号：US10116854

申请日：2002-04-05

Applicant: Daniel Yap

Inventor： Daniel Yap

IPC: H01S300

CPC classification number: H04B10/25752 ,  H01Q3/2676

Abstract: A RF amplification system which includes a RF modulation unit fed by an optical carrier and an RF input signal, the modulation unit modulating the RF input signal onto the optical carrier to produce a modulated RF optical signal; an array of optical amplifiers coupled to the modulation unit for receiving and amplifying the modulated RF optical signals; and a detecting unit having at least one photodetector coupled to the array of optical amplifiers for receiving and detecting the modulated RF optical signals, the at least one photodetector producing an amplified RF output in response thereto.

Abstract translation: 一种RF放大系统，其包括由光载波馈送的RF调制单元和RF输入信号，调制单元将RF输入信号调制到光载波上以产生调制的RF光信号; 耦合到所述调制单元的用于接收和放大经调制的RF光信号的光放大器阵列; 以及检测单元，其具有耦合到所述光放大器阵列的至少一个光电检测器，用于接收和检测经调制的RF光信号，所述至少一个光电检测器响应于此产生放大的RF输出。

公开(公告)号：US06628849B2

公开(公告)日：2003-09-30

申请号：US09848498

申请日：2001-05-03

Applicant: Daniel Yap ,  Willie W. Ng

Inventor： Daniel Yap ,  Willie W. Ng

IPC: G02F1035

CPC classification number: G02F1/3136

Abstract: An apparatus and method for photonically sampling an analog signal and encoding the photonically sampled signal. The two interferometer arms of a Mach-Zehnder interferometer section are directly coupled to the dual input ports of a directional coupler switch section. Optical pulses transmitted through the interferometer arms are phase shifted in proportion to an analog signal applied at the electrical input port of the Mach-Zehnder interferometer section. The phase-shifted pulses in each interferometer arm are coupled in the directional coupler switch section and are directed to the dual output ports of the directional switch section based upon the binary code applied to the electrical input port of the directional coupler switch section. The directional switch section has an optical length designed to provide a net phase shift of 3&pgr;/4.

公开(公告)号：US06285043B1

公开(公告)日：2001-09-04

申请号：US09430851

申请日：1999-11-01

Applicant: Daniel Yap

Inventor： Daniel Yap

IPC: H01L2715

CPC classification number: G02B6/4232 ,  G02B6/423 ,  G02B6/4246 ,  H01L27/1446

Abstract: An application-specific rf optoelectronic integrated circuit having a generic chip member and a defining substrate in communication with at least one generic chip member. The generic chip member contains passive building block components that are independent from each other and being connected by paths external to the generic chip member. The external connection paths are defined by a defining substrate member having passive components for providing optical and electrical interconnection between selected building block components on the generic chip member to define the specific function of the integrated circuit. It is possible to use the same design of the generic chip for several applications merely by altering the interconnect paths on a defining substrate.

Abstract translation: 具有通用芯片部件和与至少一个通用芯片部件连通的限定基板的应用专用RF光电集成电路。 通用芯片构件包含彼此独立并且通过通用芯片构件外部的路径连接的被动构建块部件。 外部连接路径由具有无源部件的限定衬底构件限定，用于在通用芯片构件上的选定构件块部件之间提供光学和电气互连，以限定集成电路的特定功能。 仅通过改变定义衬底上的互连路径就可以将通用芯片的相同设计用于若干应用。

公开(公告)号：US06246350B1

公开(公告)日：2001-06-12

申请号：US09222611

申请日：1998-12-23

Applicant: Daniel Yap

Inventor： Daniel Yap

IPC: H03M100

CPC classification number: H03M1/361 ,  H03M1/44

Abstract: An analog to digital converter has an optical pulse source generating an optical pulse chain having a plurality of optical pulses. An optoelectronic digitizer has a first input receiving the optical pulse chain. The digitizer has a second input for receiving the analog signal to be converted. The digitizer has a plurality of digital outputs. Each of the digital outputs corresponds to a range value. An electronic encoder receives the plurality of digital outputs. The encoder has an output in a predetermined digital format.

Abstract translation: 模数转换器具有产生具有多个光脉冲的光脉冲链的光脉冲源。 光电数字转换器具有接收光脉冲链的第一输入端。 数字转换器具有用于接收要转换的模拟信号的第二输入端。 数字化仪具有多个数字输出。 每个数字输出都对应一个范围值。 电子编码器接收多个数字输出。 编码器具有预定数字格式的输出。

公开(公告)号：US5751867A

公开(公告)日：1998-05-12

申请号：US591997

申请日：1996-01-26

Applicant: James H. Schaffner ,  Daniel Yap

Inventor： James H. Schaffner ,  Daniel Yap

IPC: G02F1/01 ,  G02F1/065 ,  G02F1/225 ,  G02B6/10

CPC classification number: G02F1/225 ,  G02F1/065 ,  G02F2203/06

Abstract: An intensity modulator having a Mach-Zehnder structure with first and second waveguide arms formed of an electro-optic polymer. The active molecules of the waveguide arms are poled in first and second different and substantially orthogonal directions. Electrodes are arranged to receive a modulating voltage and generate first and second electric fields which are respectively aligned with the first and second directions. As a consequence, the modulation depth of an optical signal which is transmitted through the modulator is substantially insensitive to the polarization of the signal. Other embodiments combine mode splitters and combiners with first and second Mach-Zehnder modulators which have electro-optic polymer waveguides. The active molecules of the arms of the two Mach-Zehnder modulators are poled in orthogonal directions.

Abstract translation: 具有Mach-Zehnder结构的强度调制器，其具有由电光聚合物形成的第一和第二波导臂。 波导臂的活性分子在第一和第二不同且基本正交的方向上极化。 电极被布置成接收调制电压并产生分别与第一和第二方向对齐的第一和第二电场。 因此，通过调制器传输的光信号的调制深度基本上对信号的极化不敏感。 其他实施例将模式分离器和组合器与具有电光聚合物波导的第一和第二马赫 - 曾德调制器组合。 两个Mach-Zehnder调制器的臂的活性分子在正交方向上极化。

公开(公告)号：US5138626A

公开(公告)日：1992-08-11

申请号：US582300

申请日：1990-09-12

Applicant: Daniel Yap

Inventor： Daniel Yap

IPC: H01L27/15 ,  H01S5/00 ,  H01S5/026 ,  H01S5/042 ,  H01S5/20 ,  H01S5/22 ,  H01S5/227 ,  H01S5/34

CPC classification number: B82Y20/00 ,  H01S5/026 ,  H01S5/20 ,  H01S5/22 ,  H01S5/34 ,  H01S5/0425 ,  H01S5/2059 ,  H01S5/2213 ,  H01S5/2275

Abstract: A laser structure achieves high reliability, good bandwidth and performance characteristics and a fabrication procedure that is compatible with other IC devices by providing an active lasing region below an optical mode confining ridge. The active region is preferably a multiple quantum well (MQW) that is sandwiched between upper and lower cladding layers. The portions of the MQW lateral to the ridge are compositionally disordered to give them a larger bandgap energy and lower refractive index than the active MQW region, and thus resist charge carrier spreading from the MQW. The ridge provides the primary optical mode confinement, allowing a shallow burial of the MQW to a depth less than 0.5 microns. This permits the compositional disordering of the lateral MQW regions to be performed by a heated ion implantation process that requires a lower temperature than separate implantation and annealing, and is compatible with the provision of additional circuitry on the same substrate.