公开(公告)号：US08358398B2

公开(公告)日：2013-01-22

申请号：US12356038

申请日：2009-01-19

Applicant: Xuehua Wu ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Xuehua Wu ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

IPC: G02F1/13 ,  G02F1/1335 ,  G02B27/28

CPC classification number: G02B6/2713 ,  G02B6/2931 ,  G02F1/0136 ,  G02F1/1326 ,  G02F1/133 ,  G02F1/133528 ,  G02F1/31 ,  G02F2001/13355 ,  G02F2201/122 ,  G02F2201/307 ,  G02F2203/48

Abstract: An optical device is configured to perform both switching and attenuation of an optical beam in response to a single control signal. The optical device includes a liquid-crystal-based beam-polarizing element having polarization-conditioning regions that are controlled using a common electrode. The first polarization-conditioning region conditions the polarization of the input beam in order to separate the input beam into a primary component and a residual component. The second and third polarization-conditioning regions change the polarization of the primary component and the residual component, respectively. The primary component is directed to an output port after it has been attenuated based on its polarization state. The residual component, after passing through the third polarization-conditioning region, has its intensity further reduced based on its polarization state.

Abstract translation: 光学装置被配置为响应于单个控制信号执行光束的切换和衰减。 光学装置包括具有使用公共电极控制的偏振调节区域的基于液晶的光束偏振元件。 第一偏振调节区域调节输入光束的偏振，以便将输入光束分离成初级分量和残余分量。 第二和第三偏振调节区分别改变初级分量和残余分量的极化。 基于其极化状态衰减后，主要成分被引导到输出端口。 残留分量在通过第三偏振调节区域之后，其强度基于其极化状态进一步减小。

公开(公告)号：US20110129216A1

公开(公告)日：2011-06-02

申请号：US12283953

申请日：2008-09-17

Applicant: Christopher Lin

Inventor： Christopher Lin

IPC: H04B10/08 ,  G02B6/42

CPC classification number: H04J14/02 ,  H04J14/0221

Abstract: The specification describes tunable optical filters improved according to the invention by designing the optical system architecture to provide a double pass of the signal being analyzed through the tunable optical filter. The benefit of double passes through the tunable optical filter is narrower linewidth and better adjacent and non-adjacent channel isolation. The invention may be implemented with any tunable optical filter which is reciprocal. The optical system architecture is preferably an optical performance monitor for a WDM system.

Abstract translation: 本说明书描述了根据本发明改进的可调谐滤光器，通过设计光学系统架构以提供通过可调谐滤光器分析的信号的双重通过。 双通道可调滤光器的优点是线宽更窄，邻近和非相邻通道隔离更好。 本发明可以用互逆的任何可调光学滤波器来实现。 光学系统架构优选地是用于WDM系统的光学性能监视器。

公开(公告)号：US07949257B2

公开(公告)日：2011-05-24

申请号：US11938754

申请日：2007-11-12

Applicant: Christopher Lin ,  Mark Summa ,  Martin Williams ,  Douglas Butler ,  Peter Wigley

Inventor： Christopher Lin ,  Mark Summa ,  Martin Williams ,  Douglas Butler ,  Peter Wigley

IPC: H04B10/08 ,  H04B10/12 ,  H04B10/00 ,  H04J14/02

CPC classification number: H04B10/2513

Abstract: One embodiment sets forth a technique for measuring chromatic dispersion using reference signals within the operational range of amplifiers used to refresh data signals. One red/blue laser pair in the transmission node is used for measuring dispersion and chromatic dispersion compensation is added at each line node in the system. Since reference and data signals propagate through each amplifier, the reference signals used to measure chromatic dispersion receive the same dispersion compensation (and will have the same residual dispersion) as the data signals. Therefore, any residual dispersion in the data signals will manifest itself in downstream dispersion measurements and, thus, can be corrected. The tunable dispersion compensator in each line node may be set to compensate for the measured dispersion, thereby compensating for both the chromatic dispersion of the link connecting the current node to the prior node and any uncorrected residual dispersion from prior nodes.

Abstract translation: 一个实施例提出了使用用于刷新数据信号的放大器的操作范围内的参考信号来测量色散的技术。 传输节点中的一个红/蓝激光对用于测量色散，并且在系统中的每个线路节点处添加色散补偿。 由于参考和数据信号通过每个放大器传播，用于测量色散的参考信号将接收与数据信号相同的色散补偿（并将具有相同的残留色散）。 因此，数据信号中的任何残留色散将在下游色散测量中显现，因此可以被校正。 每个线路节点中的可调谐色散补偿器可以被设置为补偿测量的色散，由此补偿连接当前节点到先前节点的链路的色散和来自先前节点的任何未校正的残余色散。

公开(公告)号：US20090147212A1

公开(公告)日：2009-06-11

申请号：US12356038

申请日：2009-01-19

Applicant: Xuehua WU ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Xuehua WU ,  Haijun Yuan ,  Christopher Lin ,  Giovanni Barbarossa

IPC: G02F1/1347

CPC classification number: G02B6/2713 ,  G02B6/2931 ,  G02F1/0136 ,  G02F1/1326 ,  G02F1/133 ,  G02F1/133528 ,  G02F1/31 ,  G02F2001/13355 ,  G02F2201/122 ,  G02F2201/307 ,  G02F2203/48

Abstract: An optical device is configured to perform both switching and attenuation of an optical beam in response to a single control signal. The optical device includes a liquid-crystal-based beam-polarizing element having polarization-conditioning regions that are controlled using a common electrode. The first polarization-conditioning region conditions the polarization of the input beam in order to separate the input beam into a primary component and a residual component. The second and third polarization-conditioning regions change the polarization of the primary component and the residual component, respectively. The primary component is directed to an output port after it has been attenuated based on its polarization state. The residual component, after passing through the third polarization-conditioning region, has its intensity further reduced based on its polarization state.

Abstract translation: 光学装置被配置为响应于单个控制信号执行光束的切换和衰减。 光学装置包括具有使用公共电极控制的偏振调节区域的基于液晶的光束偏振元件。 第一偏振调节区域调节输入光束的偏振，以便将输入光束分离成初级分量和残余分量。 第二和第三偏振调节区分别改变初级分量和残余分量的极化。 基于其极化状态衰减后，主要成分被引导到输出端口。 残留分量在通过第三偏振调节区域之后，其强度基于其极化状态进一步减小。

公开(公告)号：US06714705B1

公开(公告)日：2004-03-30

申请号：US10140610

申请日：2002-05-07

Applicant: Christopher Lin ,  Simon X. F. Cao ,  Giovanni Barbarossa ,  Charlene Yang

Inventor： Christopher Lin ,  Simon X. F. Cao ,  Giovanni Barbarossa ,  Charlene Yang

IPC: G02B634

CPC classification number: G02B6/29358 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29314 ,  G02B6/29394 ,  G02B6/29395

Abstract: A tunable chromatic dispersion and dispersion slope compensator that utilizes a Virtually Imaged Phased Array (VIPA), a rotating transmissive diffraction grating, and a mirror with different curvatures for different cross-sections is disclosed. The compensator in accordance with the present invention provides simultaneous tunable compensation of chromatic dispersion and dispersion slope utilizing a single apparatus. The amount of compensation is accomplished by rotating the transmissive diffracting grating and/or translating the mirror. A system which utilizes the compensator is thus cost effective to manufacture.

Abstract translation: 公开了一种可调谐色散和色散斜率补偿器，其利用虚拟成像相位阵列（VIPA），旋转透射衍射光栅以及用于不同截面具有不同曲率的反射镜。 根据本发明的补偿器使用单个装置提供色散和色散斜率的同时可调谐补偿。 通过旋转透射衍射光栅和/或平移反射镜来实现补偿量。 因此，利用补偿器的系统是制造成本有效的。

公开(公告)号：US06462446B2

公开(公告)日：2002-10-08

申请号：US09749206

申请日：2000-12-27

Applicant: Michael Andrew Cook ,  Paul Christopher Lin ,  Vijay Pal Singh Chahar ,  Sreeramachandra Murty Ragidimilli ,  Timothy Wilbur Carey

Inventor： Michael Andrew Cook ,  Paul Christopher Lin ,  Vijay Pal Singh Chahar ,  Sreeramachandra Murty Ragidimilli ,  Timothy Wilbur Carey

IPC: H02K500

CPC classification number: H02K5/24 ,  H02K5/1732

Abstract: A mounting assembly for an electric motor with deep drawn endshields includes a resilient outer ring and a split inner ring for gripping engagement with an outer surface of a bearing endshield. The gripping engagement is sufficient to hold the mounting assembly to the motor but insufficient to deform the endshields. The inner ring is distanced slightly from first and second ends of the mounting assembly to isolate and damp motor vibration and prevent vibration transmission to a mounting base.

Abstract translation: 用于具有深拉终端罩的电动机的安装组件包括弹性外圈和用于与轴承端部罩的外表面夹持接合的分离内圈。 夹持接合足以将安装组件固定到电动机上，但不足以使端部罩变形。 内环与安装组件的第一端和第二端稍微分开，以隔离和阻尼电机振动并防止振动传递到安装座。

公开(公告)号：US20120236247A1

公开(公告)日：2012-09-20

申请号：US13485052

申请日：2012-05-31

Applicant: Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Haijun Yuan ,  Xuehua Wu ,  Christopher Lin ,  Giovanni Barbarossa

IPC: G02F1/13

CPC classification number: G02F1/1313 ,  G02B5/3083 ,  G02B6/35 ,  G02B27/283 ,  G02F1/1326 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/31

Abstract: An optical switch for performing high extinction ratio switching of an optical signal includes a beam polarizing element and one or more optical elements. The optical elements are configured to direct an optical signal along a first or second optical path based on the polarization state of the optical signal as it passes through the optical elements. The optical switch performs high extinction ratio switching of the optical signal by preventing unwanted optical energy from entering an output port by using an absorptive or reflective optical element or by directing the unwanted optical energy along a different optical path.

Abstract translation: 用于执行光信号的高消光比切换的光开关包括光束偏振元件和一个或多个光学元件。 光学元件被配置为当光信号通过光学元件时，基于光信号的偏振状态沿着第一或第二光路引导光信号。 光开关通过使用吸收或反射光学元件防止不想要的光能进入输出端口或通过沿着不同的光路引导不想要的光能来执行光信号的高消光比切换。

公开(公告)号：US08094982B2

公开(公告)日：2012-01-10

申请号：US12014728

申请日：2008-01-15

Applicant: Xuehua Wu ,  Haijun Yuan ,  Younsheng Liu ,  Christopher Lin ,  Giovanni Barbarossa

Inventor： Xuehua Wu ,  Haijun Yuan ,  Younsheng Liu ,  Christopher Lin ,  Giovanni Barbarossa

IPC: G02B6/32 ,  G02B6/42

CPC classification number: G02B6/32 ,  G02B6/12009

Abstract: A fiber lens assembly is configured to optically couple an optical fiber to a signal processing device having free-space optical elements. The fiber lens assembly includes a diverging lens having a focal length that may be around 2 to 6 times the diameter of the optical fiber core. Sensitivity of the fiber lens assembly to angular misalignment and positional displacement is reduced by coupling the optical fiber to the signal processing device using a diverging lens rather than a collimating lens, and by configuring the diverging lens with a suitable focal length.

Abstract translation: 光纤透镜组件被配置为光纤耦合到具有自由空间光学元件的信号处理装置。 光纤透镜组件包括具有可能为光纤芯直径的2至6倍的焦距的发散透镜。 通过使用发散透镜而不是准直透镜将光纤耦合到信号处理装置，并且通过配置具有合适焦距的发散透镜来减少光纤透镜组件对角度偏移和位置位移的灵敏度。

公开(公告)号：US20110063720A1

公开(公告)日：2011-03-17

申请号：US12584919

申请日：2009-09-15

Applicant: Christopher Lin ,  Ming Cai ,  Martin Williams

Inventor： Christopher Lin ,  Ming Cai ,  Martin Williams

IPC: H01S3/00

CPC classification number: H01S3/06754 ,  G02B26/023 ,  H01S3/10023 ,  H01S3/1608 ,  H04B10/2941

Abstract: Described are Gain Flattening Filters (GFFs) implemented using mechanical translating assemblies to move selected thin film Gain Attenuating Filters (GAFs), and combinations of selected GAFs, into or out of the output path from an optical amplifier. The GAFs may be used singly, or in combinations that synthesize many target filter characteristics. The GFF is primarily adapted for WDM systems operating with a wavelength range of approximately 1520 nm to 1620 nm. Several embodiments are shown for effectively combining different GAFs to provide multiple GFF curves.

Abstract translation: 描述的是使用机械平移组件实现的增益扁平滤波器（GFF），其将所选择的薄膜增益衰减滤波器（GAF）以及所选择的GAF的组合移动到光放大器的输出路径中或外。 GAF可以单独使用，也可以合成许多目标滤光片特性。 GFF主要适用于波长范围约为1520 nm至1620 nm的WDM系统。 示出了几个实施例用于有效地组合不同的GAF以提供多个GFF曲线。

公开(公告)号：US20100277658A1

公开(公告)日：2010-11-04

申请号：US12433769

申请日：2009-04-30

Applicant: Xuefeng YUE ,  Christopher LIN ,  Ruipeng SUN ,  Ruibo WANG

Inventor： Xuefeng YUE ,  Christopher LIN ,  Ruipeng SUN ,  Ruibo WANG

IPC: G02F1/13363

CPC classification number: G02F1/31 ,  G02B6/3524 ,  G02F1/1396 ,  G02F2203/06 ,  G02F2203/58

Abstract: An optical device has the structure to perform switching and attenuation of an optical beam with reduced polarization dependent loss (PDL). The optical device includes a birefringent displacer and two liquid crystal (LC) structures. The first LC structure is used to condition s-polarized components of the optical beam and the second LC structure is used to condition p-polarized components of the optical beam. Each LC structure has a separate control electrode so that the s-polarized components of the optical beam and the p-polarized components of the optical beam can be conditioned differently and in such a manner that reduces PDL. The optical device may be configured for processing multiple input light beams, such as the multiple wavelength channels de-multiplexed from a wavelength division multiplexed (WDM) optical signal.

Abstract translation: 光学器件具有以减小的偏振相关损耗（PDL）来执行光束的切换和衰减的结构。 光学器件包括双折射置换器和两个液晶（LC）结构。 第一个LC结构用于调节光束的s极化分量，第二个LC结构用于调节光束的p偏振分量。 每个LC结构具有单独的控制电极，使得光束的s偏振分量和光束的p偏振分量可以被不同地调节并且以减少PDL的方式进行调节。 光学装置可以被配置为处理多个输入光束，例如从波分复用（WDM）光信号解复用的多个波长信道。