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1. 发明公开

US20240184051A1 OPTICAL COUPLER WITH DIFFERENT WAVEGUIDE MATERIALS 审中-公开
公开(公告)号：US20240184051A1
公开(公告)日：2024-06-06
申请号：US18521694
申请日：2023-11-28
申请人： Tiehui Su , Boris M. Vulovic , Wei Qian , Kelly Magruder , Pegah Seddighian , Wenhua Lin , Harel Frish , Nutan Gautam
发明人： Tiehui Su , Boris M. Vulovic , Wei Qian , Kelly Magruder , Pegah Seddighian , Wenhua Lin , Harel Frish , Nutan Gautam
IPC分类号： G02B6/293
CPC分类号： G02B6/2938 , G02B6/29325
摘要： Embodiments herein may relate to an optical coupler that includes a silicon substrate and a silicon nitride waveguide positioned on the silicon substrate. The silicon nitride waveguide may be configured to guide an optical signal along a first axis. The optical coupler may further include a silicon waveguide positioned on the silicon substrate. The silicon waveguide may be configured to receive, from an output end of the silicon nitride waveguide, the optical signal at an input end of the silicon waveguide and guide the optical signal along a second axis that is at a first angle to the first axis. Other embodiments may be described and/or claimed.

2. 发明授权

US09279936B2 Optical device having light sensor with doped regions 有权
公开(公告)号：US09279936B2
公开(公告)日：2016-03-08
申请号：US13507468
申请日：2012-06-28
申请人： Wei Qian , Dazeng Feng , Mehdi Asghari
发明人： Wei Qian , Dazeng Feng , Mehdi Asghari
IPC分类号： H01L31/0232 , G02B6/12 , G02B6/13
CPC分类号： G02B6/12004 , G02B6/131 , G02B2006/12061 , G02B2006/12176
摘要： The optical device includes a waveguide on a base. The waveguide is configured to guide a light signal through a light-transmitting medium to a light sensor. The light sensor includes a sensor waveguide on the base. The sensor waveguide receives the light signal from the input waveguide. Additionally, the sensor waveguide includes a light-absorbing medium having an input side. The input side is interfaced with the light-transmitting medium such that at least a portion of the light signal received by the sensor waveguide travels through the input side of the light-absorbing medium upon being received by the sensor waveguide. The light-absorbing medium includes doped regions. One or more of the doped regions each extends from within the light-absorbing medium to the input side of the light-absorbing medium.

3. 发明授权

US08989540B2 Device with multiple light sensors receiving light signals from a waveguide 有权
标题翻译：具有多个光传感器的装置接收来自波导的光信号
公开(公告)号：US08989540B2
公开(公告)日：2015-03-24
申请号：US13066542
申请日：2011-04-15
申请人： Dazeng Feng , Wei Qian
发明人： Dazeng Feng , Wei Qian
IPC分类号： G02B6/42 , G02B6/43 , G02B6/122 , G02B6/125 , G02B6/12 , G02B6/10
CPC分类号： G02B6/43 , G02B6/12004 , G02B6/1228 , G02B6/125
摘要： The device includes a main waveguide on a base. The main waveguide is configured to guide a light signal through a light-transmitting medium. The device also includes multiple transition waveguides on the base. Each of the transition waveguide intersects a terminal end of the main waveguide such that each transition waveguide receives a different portion of the light signal from the main waveguide. The device also includes one or more light sensors positioned on the base. Each transition waveguide guides the received light portions to the one or more light sensors such that each of the light signal portions is received at the one or more light sensors.
摘要翻译：该装置包括在基座上的主波导。主波导被配置为引导光信号通过透光介质。该装置还包括在基座上的多个过渡波导。每个过渡波导与主波导的终端相交，使得每个过渡波导接收来自主波导的光信号的不同部分。该装置还包括位于基座上的一个或多个光传感器。每个过渡波导将接收的光部分引导到一个或多个光传感器，使得每个光信号部分被接收在一个或多个光传感器处。

4. 发明授权

US08989522B2 Isolation of components on optical device 有权
标题翻译：光学元件的隔离
公开(公告)号：US08989522B2
公开(公告)日：2015-03-24
申请号：US13506705
申请日：2012-05-09
申请人： Wei Qian , Dazeng Feng , Mehdi Asghari , Joan Fong
发明人： Wei Qian , Dazeng Feng , Mehdi Asghari , Joan Fong
IPC分类号： G02F1/035 , H01L31/105 , G02B6/12 , G02F1/01 , G02F1/025 , G02F1/03 , G02F1/225
CPC分类号： H01L31/105 , G02F1/0147 , G02F1/025 , G02F1/0305 , G02F1/225 , G02F2201/063 , G02F2201/501
摘要： The optical device includes an active component on a base. The active component is a light sensor and/or a light modulator. The active component including an active medium that includes a ridge and slab regions. The ridge extends upwards from the base and is positioned between the slab regions. The ridge defines a portion of a waveguide on the base. One or more isolation trenches each extends into the slab regions of the active medium and is at least partially spaced apart from the ridge of the active medium.
摘要翻译：光学器件包括在基底上的有源元件。有源部件是光传感器和/或光调制器。活性组分包括包含脊和板区域的活性介质。脊从基部向上延伸并且位于板区之间。脊限定了基部上的波导的一部分。一个或多个隔离沟槽各自延伸到活性介质的平板区域中，并且至少部分地与活性介质的脊部间隔开。

5. 发明申请

US20140113397A1 Enhancing planarization uniformity in optical devices 有权
标题翻译：提高光学器件的平坦化均匀性
公开(公告)号：US20140113397A1
公开(公告)日：2014-04-24
申请号：US13694048
申请日：2012-10-22
申请人： Wei Qian , Joan Fong , Dazeng Feng , Jay Jie Lai
发明人： Wei Qian , Joan Fong , Dazeng Feng , Jay Jie Lai
IPC分类号： H01L31/18
CPC分类号： H01L31/18 , G02B6/122 , G02B2006/12176 , G02F1/025
摘要： An optical device is formed from a device precursor having a layer of a light-transmitting medium on a base. A first feature is formed on the device precursor. The device precursor is then processed such that a stop layer protects the first feature and a portion of the device precursor is above the top of the stop layer. The first feature is between the base and the stop layer. The device precursor is planarized such that the portion of the device precursor located above the top of the stop layer becomes flush with the top of the portion of the stop layer that is present on the device precursor after the planarization. During the planarization, the stop layer acts as a planarization stop that slows or stops the rate of planarization.
摘要翻译：光学器件由在基底上具有透光介质层的器件前体形成。在器件前体上形成第一特征。然后处理器件前体，使得停止层保护第一特征，并且器件前体的一部分在止动层的顶部之上。第一个特征是在底层和停止层之间。器件前体被平坦化，使得位于停止层顶部之上的器件前体的部分在平坦化之后与存在于器件前体上的止挡层部分的顶部相平齐。在平坦化期间，停止层用作减慢或停止平坦化速率的平坦化停止。

6. 发明授权

US08410566B2 Application of electrical field power to light-transmitting medium 有权
标题翻译：电场功率应用于透光介质
公开(公告)号：US08410566B2
公开(公告)日：2013-04-02
申请号：US13136828
申请日：2011-08-10
申请人： Wei Qian , Dazeng Feng , Joan Fong , Mehdi Asghari
发明人： Wei Qian , Dazeng Feng , Joan Fong , Mehdi Asghari
IPC分类号： H01L27/14 , H01L31/00 , H01L31/0232 , H01L27/15 , H01L29/26 , H01L31/12 , H01L33/00 , H01L29/267 , H01L29/16 , H01L29/161 , H01L31/153 , H01L29/165
CPC分类号： G02B6/12004 , G02B6/131 , G02B2006/12061 , G02B2006/12176
摘要： A device includes an input waveguide on a base. The input waveguide guides a light signal through a light-transmitting medium to a light sensor. The light sensor includes a sensor waveguide on the base. The sensor waveguide includes a light-absorbing medium that receives the light signal from the input waveguide. The light-absorbing medium has one or more continuous doped regions that are each positioned such that an application of electrical energy to the doped regions forms an electrical field in the light-absorbing medium. One or more of the doped regions has a first portion that is located within the light-absorbing medium and a second portion located outside of the light-absorbing medium. The device also includes an electrical conductor for applying the electrical energy to one of the doped regions. The electrical conductor contacts the portion of the doped regions that is located outside of the light-absorbing medium.
摘要翻译：装置包括在基座上的输入波导。输入波导通过光传输介质将光信号引导到光传感器。光传感器包括在基座上的传感器波导。传感器波导包括从输入波导接收光信号的光吸收介质。光吸收介质具有一个或多个连续掺杂区域，每个连续掺杂区域被定位成使得向掺杂区域施加电能在光吸收介质中形成电场。一个或多个掺杂区域具有位于光吸收介质内的第一部分和位于光吸收介质外部的第二部分。该装置还包括用于将电能施加到一个掺杂区域的电导体。电导体接触位于光吸收介质外部的掺杂区域的部分。

7. 发明授权

US08234770B2 Method and apparatus for joining metals using self-piercing rivets with preheating 有权
标题翻译：使用自穿铆钉加热金属的预热方法和装置
公开(公告)号：US08234770B2
公开(公告)日：2012-08-07
申请号：US12302702
申请日：2007-05-31
申请人： Yvonne Claire Durandet , Wei Qian Song , Brian Dempster , Milan Brandt , Stuart Blacket
发明人： Yvonne Claire Durandet , Wei Qian Song , Brian Dempster , Milan Brandt , Stuart Blacket
IPC分类号： B23P11/00 , B29C65/16
CPC分类号： B21J15/025 , B21J15/08 , B23K26/60 , Y10T29/49947 , Y10T29/5191
摘要： A method for joining elements together, the method comprising the steps of: positioning the elements relative to one another; enhancing the formability of at least a portion of at least one of the elements using a laser; and joining the elements together using a mechanical fastening method.
摘要翻译：一种用于将元件连接在一起的方法，所述方法包括以下步骤：将元件相对于彼此定位; 使用激光增强至少一个元件的至少一部分的可成形性; 并使用机械紧固方法将元件连接在一起。

8. 发明授权

US08021561B1 Optical component having features extending different depths into a light transmitting medium 有权
标题翻译：具有将不同深度延伸到光传输介质的特征的光学部件
公开(公告)号：US08021561B1
公开(公告)日：2011-09-20
申请号：US12321368
申请日：2009-01-16
申请人： Wei Qian , Joan Fong , Dazeng Feng
发明人： Wei Qian , Joan Fong , Dazeng Feng
IPC分类号： B29D11/00
CPC分类号： B29D11/00721 , G02B6/124 , G02B6/136
摘要： The optical device includes a plurality of waveguides and an optical grating. A first portion of the waveguides act as input waveguide configured to carry a light beam that includes multiple light signals to the optical grating. The optical grating is configured to demultiplex the light signals. A second portion of the waveguides act as output waveguides configured to carry the demultiplexed light signals away from the optical grating. A method of forming the optical device includes sequentially forming the waveguides and the optical grating while a single mask defines the location of the waveguides and the optical grating.
摘要翻译：光学装置包括多个波导和光栅。波导的第一部分用作输入波导，其被配置为将包括多个光信号的光束传送到光栅。光栅被配置为对光信号进行解复用。波导的第二部分用作输出波导，其被配置为将解复用的光信号传送离开光栅。形成光学器件的方法包括顺序地形成波导和光栅，同时单个掩模限定波导和光栅的位置。

9. 发明授权

US07659683B2 Resonant frequency identification 有权
标题翻译：谐振频率识别
公开(公告)号：US07659683B2
公开(公告)日：2010-02-09
申请号：US11669048
申请日：2007-01-30
申请人： Zhengrong Li , Wei Qian , Peter B. Schmidt , Sang Hoon Lee
发明人： Zhengrong Li , Wei Qian , Peter B. Schmidt , Sang Hoon Lee
IPC分类号： G05B11/01
CPC分类号： H02P6/06 , B41J19/202 , H02P23/04 , H02P29/50
摘要： Systems and methods that determine resonant frequencies of a motor system via employing an output of a velocity regulator. The velocity regulator enables the motor drive to command the rotation of the motor at predetermined rotations, by setting rotational speeds of the motor. The output of the velocity regulator can then be stored as a function of time, and a Fast Fourier Transform performed on such time data to obtain a frequency data and a signal power spectrum.
摘要翻译：通过采用速度调节器的输出来确定电机系统的谐振频率的系统和方法。速度调节器使马达驱动器通过设定马达的转速来以预定转速来指令马达的旋转。速度调节器的输出可以作为时间的函数存储，并且对这种时间数据执行快速傅立叶变换以获得频率数据和信号功率谱。

10. 发明授权

US07298105B1 Motor speed estimation system and method using hybrid model reference adaptive system 有权
标题翻译：使用混合模型参考自适应系统的电机速度估计系统和方法
公开(公告)号：US07298105B1
公开(公告)日：2007-11-20
申请号：US11614239
申请日：2006-12-21
申请人： Haihui Lu , Wei Qian
发明人： Haihui Lu , Wei Qian
IPC分类号： H02P21/06
CPC分类号： H02P21/0021 , H02P21/0017 , H02P21/141 , H02P21/18 , H02P21/20 , H02P21/26 , H02P21/32 , H02P21/34 , H02P31/00 , H02P2203/05 , H02P2203/09 , H02P2207/01 , Y10S388/906 , Y10S388/917
摘要： Motor drives, motor speed controllers, motor speed estimation systems, and methods are presented for controlling motor speed and for estimating motor speed, in which a speed estimate controller provides a rotor speed estimate based on a first error term from a torque-based MRAS component for a first range of motor speeds and based on a second error term from a rotor flux-based MRAS component for a second range of speeds.
摘要翻译：提出了电机驱动器，电动机速度控制器，电动机速度估计系统和方法，用于控制电动机速度和估计电动机速度，其中速度估计控制器基于来自基于扭矩的MRAS分量的第一误差项提供转子速度估计对于第一范围的电动机速度，并且基于来自用于第二速度范围的基于转子磁通的MRAS分量的第二误差项。

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