公开(公告)号：US07345812B2

公开(公告)日：2008-03-18

申请号：US10783972

申请日：2004-02-20

Applicant: Rongqing Hui ,  Hong-Xing Jiang ,  Jing-Yu Lin

Inventor： Rongqing Hui ,  Hong-Xing Jiang ,  Jing-Yu Lin

IPC: H01S5/00

CPC classification number: H01S3/14 ,  G02F1/025 ,  G02F1/2257 ,  G02F2001/0156 ,  H01S3/063 ,  H01S3/0637 ,  H01S3/0941 ,  H01S3/1628

Abstract: The present disclosure relates to the use of III-nitride wide bandgap semiconductor materials for optical communications. In one embodiment, an optical device includes an optical waveguide device fabricated using a III-nitride semiconductor material. The III-nitride semiconductor material provides for an electrically controllable refractive index. The optical waveguide device provides for high speed optical communications in an infrared wavelength region. In one embodiment, an optical amplifier is provided using optical coatings at the facet ends of a waveguide formed of erbium-doped III-nitride semiconductor materials.

Abstract translation: 本公开涉及III族氮化物宽带隙半导体材料用于光通信的用途。 在一个实施例中，光学装置包括使用III族氮化物半导体材料制造的光波导器件。 III族氮化物半导体材料提供电可控的折射率。 光波导器件提供红外波长区域中的高速光通信。 在一个实施例中，在由掺铒III族氮化物半导体材料形成的波导的小面处使用光学涂层提供光放大器。

公开(公告)号：US6124960A

公开(公告)日：2000-09-26

申请号：US929360

申请日：1997-09-08

Applicant: Dietmar Garthe ,  Ross Alexander Saunders ,  Alan Robinson ,  Maurice O'Sullivan ,  Rongqing Hui

Inventor： Dietmar Garthe ,  Ross Alexander Saunders ,  Alan Robinson ,  Maurice O'Sullivan ,  Rongqing Hui

IPC: G02F1/01 ,  H04B3/06 ,  H04B10/02 ,  H04B10/18 ,  H04B10/04

CPC classification number: H04B10/25137 ,  H04B10/255 ,  H04B10/2557

Abstract: In a WDM transmission system carrying amplitude modulated traffic in which significant cross-phase modulation occurs, each of the individual channels is pre-chirped at the transmitter with replicas, or low-pass filtered replicas of the amplitude modulation applied to each of the other channels. Prechirping of each individual channel with a replica of the amplitude modulation applied to that channel may be added in order additionally to provide compensation for self-phase modulation.

Abstract translation: 在承载幅度调制业务的WDM传输系统中，发生显着的跨相位调制，各个信道在发射机处被预先啁啾，其中复制或低通滤波后的复制品被施加到每个其它信道 。 每个单独信道的预加速可以应用于该信道的幅度调制的复制品，以便额外地添加以对自相位调制提供补偿。

公开(公告)号：US5455836A

公开(公告)日：1995-10-03

申请号：US346939

申请日：1994-11-23

Applicant: Guo P. Li ,  Toshi Makino ,  Rongqing Hui

Inventor： Guo P. Li ,  Toshi Makino ,  Rongqing Hui

IPC: H01S3/11 ,  H01S5/00 ,  H01S5/06 ,  H01S5/0625 ,  H01S5/50 ,  H04B10/145

CPC classification number: H01S5/0608 ,  H01S5/0615 ,  H01S5/06258 ,  H01S5/5063

Abstract: A system for generating an ultra short optical pulse by pumping a semiconductor signal laser with an optical pulse from a semiconductor probe laser. The signal laser has dual segments each operated under different d.c. injection current levels. The probe laser is modulated with a pulsed input and the optical output thereof is coupled via optical means to the signal laser so as to Q-switch the latter. Optical pulses in the 65 ps range result.

Abstract translation: 一种用于通过用半导体探针激光器的光脉冲泵浦半导体信号激光来产生超短光脉冲的系统。 信号激光器具有双段，每个段在不同的直流电压下运行。 注射电流水平。 探针激光器用脉冲输入调制，其光输出通过光学装置耦合到信号激光器，以便Q开关。 导致65 ps范围内的光脉冲。

公开(公告)号：US08583296B2

公开(公告)日：2013-11-12

申请号：US13476539

申请日：2012-05-21

Applicant: Christopher T. Allen ,  Trenton Shuey ,  Rongqing Hui

Inventor： Christopher T. Allen ,  Trenton Shuey ,  Rongqing Hui

IPC: G06G7/76

CPC classification number: G01B9/08 ,  B64D45/00 ,  G01C5/005

Abstract: A low-altitude altimeter (10) and a method of determining low altitudes for unmanned aerial vehicles (24). The altimeter includes at least two illuminators (12,14), at least one sensor (16), and a computing device (18). The illuminators (12,14) emit signals which are received by the sensor (16) in such a way that an angle at which they are received is determinable by the computing device (18). The computing device (18) processes each signal received by the sensor (16), determines the angle at which the sensor (16) received the signal, and, based thereon, determines the altitude of the unmanned aerial vehicle (24). When a first pair of illuminators are arranged along a fuselage axis, and a second pair of illuminators are arranged orthogonally to that axis, the computing device can combine first and second altitude, pitch angle, and roll angle measurements to provide a more refined altitude determination.

Abstract translation: 一种低空高度计（10）和一种确定无人驾驶飞行器低空的方法（24）。 高度计包括至少两个照明器（12,14），至少一个传感器（16）和计算设备（18）。 照明器（12,14）发射由传感器（16）接收的信号，使得它们被接收的角度由计算设备（18）确定。 计算装置（18）处理由传感器（16）接收的每个信号，确定传感器（16）接收信号的角度，并且基于此确定无人驾驶飞行器（24）的高度。 当第一对照明器沿着机身轴线布置，并且第二对照明器与该轴线正交布置时，计算装置可以组合第一和第二高度，俯仰角和侧倾角测量值，以提供更精确的高度确定 。

公开(公告)号：US20120306892A1

公开(公告)日：2012-12-06

申请号：US13482287

申请日：2012-05-29

Applicant: Rongqing Hui

Inventor： Rongqing Hui

IPC: G06T13/00

CPC classification number: G09B9/006 ,  G09B19/0038

Abstract: A mobile target screen is described for ball game practicing and simulation. Tow force sensors are mounted at each of the four corners of the frame which holds a target screen. Measurements form the force sensors are used to compute and display a representation of ball speed, the location of the ball on the target screen, and the direction of the ball motion. These parameters can be used to predict the shooting distance and the landing position of the ball. It also provides enough information to predict the trajectory of the ball which can be displayed on a video screen which communicates with the sensors through a wireless transceiver.

Abstract translation: 描述了用于球游戏练习和模拟的移动目标屏幕。 牵引力传感器安装在框架的保持目标屏幕的四个角落的每一个处。 测量形式的力传感器用于计算和显示球速度，球在目标屏幕上的位置以及球运动方向的表示。 这些参数可用于预测球的射击距离和着陆位置。 它还提供足够的信息来预测可以通过无线收发器与传感器通信的视频屏幕上显示的球的轨迹。

公开(公告)号：US20080018881A1

公开(公告)日：2008-01-24

申请号：US11767501

申请日：2007-06-23

Applicant: Rongqing Hui ,  Christopher Allen ,  Peter Adany

Inventor： Rongqing Hui ,  Christopher Allen ,  Peter Adany

IPC: G01C3/00

CPC classification number: G01S17/325 ,  G01S7/4917

Abstract: An optical homodyne detection scheme for FM chirped lidar is described. The system performs de-chirping within a photodetector, and it does not require high-speed photo-detection or RF mixing. Embodiments are also described for dealing with phase noise.

Abstract translation: 描述了用于FM啁啾激光雷达的光学零差检测方案。 该系统在光电检测器内进行去啁啾，不需要高速光检测或RF混合。 还描述了用于处理相位噪声的实施例。

公开(公告)号：US06999688B1

公开(公告)日：2006-02-14

申请号：US10027966

申请日：2001-12-20

Applicant: Rongqing Hui ,  Christopher T. Allen ,  Kenneth Robert Demarest

Inventor： Rongqing Hui ,  Christopher T. Allen ,  Kenneth Robert Demarest

IPC: H04B10/06

CPC classification number: H04B10/66 ,  H04B10/032

Abstract: A receiver system processes a received optical signal that carries user information. The receiver system includes a splitter, a first converter, a second converter, and a detection system. The splitter splits the received optical signal based on polarization into a first optical signal and a second optical signal. The first converter converts the first optical signal into a corresponding first electrical signal. The second converter also converts the second optical signal into a corresponding second electrical signal. The detection system applies radio frequency detection to the first electrical signal to generate a third electrical signal. The detection system applies radio frequency detection to the second electrical signal to generate a fourth electrical signal. The detection system then combines the third electrical signal and the fourth electrical signal to form a fifth electrical signal that carries the user information.

Abstract translation: 接收机系统处理承载用户信息的接收光信号。 接收机系统包括分路器，第一转换器，第二转换器和检测系统。 分路器将接收到的基于偏振的光信号分离成第一光信号和第二光信号。 第一转换器将第一光信号转换成对应的第一电信号。 第二转换器还将第二光信号转换成对应的第二电信号。 检测系统对第一电信号应用射频检测以产生第三电信号。 检测系统对第二电信号应用射频检测以产生第四电信号。 检测系统然后组合第三电信号和第四电信号以形成承载用户信息的第五电信号。

公开(公告)号：US06069906A

公开(公告)日：2000-05-30

申请号：US213088

申请日：1998-12-15

Applicant: Jin Hong ,  Rongqing Hui ,  Maurice S. O'Sullivan

Inventor： Jin Hong ,  Rongqing Hui ,  Maurice S. O'Sullivan

Abstract: A compact source capable of generating continuously tunable high frequency microwave radiation and short optical pulses in the picosecond/sub-picosecond range is invented. It includes a laser structure having two lasers formed on the same substrate which simultaneously operate at different longitudinal modes. Each laser has a complex coupled (gain-coupled or loss-coupled) grating which is formed by deep etching through a multi-quantum well structure, either of the active medium or of the additional lossy quantum-well layers, thus ensuring no substantial interaction between lasers. The lasers have a common active medium and shared optical path and provide mutual light injection into each other which results in generation of a beat signal at a difference frequency of two lasers. The beat frequency is defined by spacing between the laser modes and may be continuously tuned by current injection and/or temperature variation. Thus, the beat signal provides a continuously tunable microwave radiation. To form a train of short optical pulses, the beat signal is either further sent to a saturable absorber followed by a semiconductor optical amplifier, or sent directly into an optical compressor which includes a dispersion fiber. As a result, a duration of each impulse is compressed, and a train of short optical pulses is formed.