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18 条记录 (耗时 0.019 秒)

    Optical interleaver and filter cell design with enhanced clear aperture
    1.
    发明授权
    Optical interleaver and filter cell design with enhanced clear aperture 有权
    光学交织器和滤波器电池设计，增强了清晰的光圈

    公开(公告)号：US07173763B2

    公开(公告)日：2007-02-06

    申请号：US10866443

    申请日：2004-06-11

    申请人： Tengda Du ,  Kevin Dapeng Zhang ,  Xin Luo

    发明人： Tengda Du ,  Kevin Dapeng Zhang ,  Xin Luo

    IPC分类号： G02B5/30

    CPC分类号： H04J14/02 ,  G02B5/04 ,  G02B6/272 ,  G02B6/29352 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/0075

    摘要： An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. A fundamental filter cell within the interleaver filters optical signals propagating on each of the two legs of the optical loop which intersects the fundamental filter cell.

    摘要翻译： 一种用于包括光复用器/解复用器和光路由器的电信应用范围内的光交织器。 光学装置包括光学处理回路，其允许通过单个物理过滤级来实现多级性能特性。 在环路的第一腿部和第二腿部上的光学处理是不对称的，从而通过在第一和第二腿部上实现互补色散而提高光学信号的完整性。 交织器内的基本滤波器单元滤波在与基波滤波器单元相交的光环路的两个支路上传播的光信号。

    Optical interleaver, filter cell, and component design with reduced chromatic dispersion
    2.
    发明授权
    Optical interleaver, filter cell, and component design with reduced chromatic dispersion 有权
    光学交织器，滤波器单元和具有降低的色散的组件设计

    公开(公告)号：US07268944B2

    公开(公告)日：2007-09-11

    申请号：US10866418

    申请日：2004-06-11

    申请人： Tengda Du ,  Kevin Dapeng Zhang

    发明人： Tengda Du ,  Kevin Dapeng Zhang

    IPC分类号： G02B5/30

    CPC分类号： H04J14/02 ,  G02B6/272 ,  G02B6/29302 ,  G02B6/29386 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/0075

    摘要： An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. A fundamental filter cell within the interleaver filters optical signals propagating on each of the two legs of the optical loop which intersects the fundamental filter cell.

    摘要翻译： 一种用于包括光复用器/解复用器和光路由器的电信应用范围内的光交织器。 光学装置包括光学处理回路，其允许通过单个物理过滤级来实现多级性能特性。 在环路的第一腿部和第二腿部上的光学处理是不对称的，从而通过在第一和第二腿部上实现互补色散而提高光学信号的完整性。 交织器内的基本滤波器单元滤波在与基波滤波器单元相交的光环路的两个支路上传播的光信号。

    Hybrid cell
    3.
    发明授权
    Hybrid cell 有权
    混合细胞

    公开(公告)号：US07106508B2

    公开(公告)日：2006-09-12

    申请号：US10654261

    申请日：2003-09-03

    申请人： Tengda Du ,  Xin Luo ,  Ping Xie ,  Evan Green

    发明人： Tengda Du ,  Xin Luo ,  Ping Xie ,  Evan Green

    IPC分类号： G02B27/28

    CPC分类号： G02B6/12007 ,  G02B6/2861 ,  G02B6/2935 ,  G02B2006/12109 ,  G02B2006/12116 ,  G02B2006/12164

    摘要： The present invention is a hybrid cell that utilizes a PBS pair in conjunction with a wedge tuner and a crystal to achieve a more stable interleaver. A first PBS splits an incoming optical signal into two orthogonally polarized beams which follow different optical paths through the cell. The length of the wedge tuner and crystal are selected such that the periodicity of the cell is approximately inversely proportional to the free spectral range at a target frequency. The length of the wedge tuner and crystal are also selected such that there is no change in an optical path difference between the two optical paths with respect to a change in temperature over an operating temperature range.

    摘要翻译： 本发明是利用PBS对与楔形调谐器和晶体结合以实现更稳定的交织器的混合单元。 第一PBS将输入的光信号分成两个正交偏振光束，该正交偏振光束遵循穿过单元的不同光路。 选择楔形调谐器和晶体的长度，使得单元的周期性与目标频率处的自由光谱范围大致成反比。 楔形调谐器和晶体的长度也被选择为使得两个光路之间的光程差相对于工作温度范围内的温度变化没有变化。

    Hybrid cell
    4.
    发明申请
    Hybrid cell 有权
    混合细胞

    公开(公告)号：US20050111772A1

    公开(公告)日：2005-05-26

    申请号：US10654261

    申请日：2003-09-03

    申请人： Tengda Du ,  Xin Luo ,  Ping Xie ,  Evan Green

    发明人： Tengda Du ,  Xin Luo ,  Ping Xie ,  Evan Green

    IPC分类号： G02B6/12 ,  G02B6/28 ,  G02B6/34 ,  G02B6/00

    CPC分类号： G02B6/12007 ,  G02B6/2861 ,  G02B6/2935 ,  G02B2006/12109 ,  G02B2006/12116 ,  G02B2006/12164

    摘要： The present invention is a hybrid cell that utilizes a PBS pair in conjunction with a wedge tuner and a crystal to achieve a more stable interleaver. A first PBS splits an incoming optical signal into two orthogonally polarized beams which follow different optical paths through the cell. The length of the wedge tuner and crystal are selected such that the periodicity of the cell is approximately inversely proportional to the free spectral range at a target frequency. The length of the wedge tuner and crystal are also selected such that there is no change in an optical path difference between the two optical paths with respect to a change in temperature over an operating temperature range.

    摘要翻译： 本发明是利用PBS对与楔形调谐器和晶体结合以实现更稳定的交织器的混合单元。 第一PBS将输入的光信号分成两个正交偏振光束，该正交偏振光束遵循穿过单元的不同光路。 选择楔形调谐器和晶体的长度，使得单元的周期性与目标频率处的自由光谱范围大致成反比。 楔形调谐器和晶体的长度也被选择为使得两个光路之间的光程差相对于工作温度范围内的温度变化没有变化。

    Free-space optical isolator with integrated quarter-wave plate
    5.
    发明授权
    Free-space optical isolator with integrated quarter-wave plate 有权
    具有集成四分之一波片的自由空间光隔离器

    公开(公告)号：US06977763B1

    公开(公告)日：2005-12-20

    申请号：US10701674

    申请日：2003-11-05

    申请人： Steve Wang ,  Mingkun Shi ,  Frank H. Levinson ,  Tengda Du

    发明人： Steve Wang ,  Mingkun Shi ,  Frank H. Levinson ,  Tengda Du

    IPC分类号： G02B26/00 ,  G02B27/28 ,  G02F1/03

    CPC分类号： G02B27/286 ,  G02B27/288

    摘要： The present invention provides low cost methods and apparatuses for filtering out polarized light reflections in a free-space optical isolator. In one embodiment, a laser directs a non-polarized optical signal through a series of polarizers and rotators in order to isolate an optical signal having a specific polarization. The present invention also includes a quarter-wave plate placed in series with the rotators and polarizers, to help filter away reflections occurring while the signal passes through free space. The inclusion of the quarter-wave plate helps filter away a greater amount of near-end reflections from going back to the laser, even with the use of low cost polarizers. Accordingly, the present invention can polarize an optical signal more efficiently than with prior methods, and at a much lower cost.

    摘要翻译： 本发明提供了用于过滤自由空间光隔离器中的偏振光反射的低成本方法和装置。 在一个实施例中，激光器通过一系列偏振器和旋转器引导非偏振光信号，以隔离具有特定极化的光信号。 本发明还包括与旋转器和偏振器串联布置的四分之一波片，以帮助滤除信号通过自由空间时发生的反射。 包括四分之一波片有助于滤除更大量的近端反射回到激光，即使使用低成本的偏振器。 因此，本发明可以比现有方法更有效地偏振光学信号，并且成本低得多。

    Optical interleaver, filter cell, and component design with reduced chromatic dispersion
    8.
    发明申请
    Optical interleaver, filter cell, and component design with reduced chromatic dispersion 有权
    光学交织器，滤波器单元和具有降低的色散的组件设计

    公开(公告)号：US20050041290A1

    公开(公告)日：2005-02-24

    申请号：US10866418

    申请日：2004-06-11

    申请人： Tengda Du ,  Kevin Zhang

    发明人： Tengda Du ,  Kevin Zhang

    IPC分类号： G02B6/34 ,  H04J14/02 ,  H04Q11/00 ,  G02B6/00 ,  G02B5/30 ,  G02B27/28

    CPC分类号： H04J14/02 ,  G02B6/272 ,  G02B6/29302 ,  G02B6/29386 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/0075

    摘要： An optical interleaver for use in a range of telecommunications applications including optical multiplexers/demultiplexers and optical routers. The optical device includes an optical processing loop which allows multi-stage performance characteristics to be achieved with a single physical filtration stage. Optical processing on the first leg and second legs of the loop is asymmetrical thereby improving the integrity of the optical signals by effecting complementary chromatic dispersion on the first and second legs. A fundamental filter cell within the interleaver filters optical signals propagating on each of the two legs of the optical loop which intersects the fundamental filter cell.

    摘要翻译： 一种用于包括光复用器/解复用器和光路由器的电信应用范围内的光交织器。 光学装置包括光学处理回路，其允许通过单个物理过滤级来实现多级性能特性。 在环路的第一腿部和第二腿部上的光学处理是不对称的，从而通过在第一和第二腿部上实现互补色散而提高光学信号的完整性。 交织器内的基本滤波器单元滤波在与基波滤波器单元相交的光环路的两个支路上传播的光信号。

    Packages for devices and components
    9.
    发明授权
    Packages for devices and components 有权
    设备和组件的包

    公开(公告)号：US07354203B2

    公开(公告)日：2008-04-08

    申请号：US11178624

    申请日：2005-07-11

    申请人： Stefan Pfnuer ,  Tengda Du ,  Kevin Zhang ,  Julie S. Eng ,  Axel Mehnert

    发明人： Stefan Pfnuer ,  Tengda Du ,  Kevin Zhang ,  Julie S. Eng ,  Axel Mehnert

    IPC分类号： G02B6/36

    CPC分类号： G02B6/4201 ,  G02B6/36 ,  G02B6/4251

    摘要： A package for maintaining alignment of components includes a frame and a beam with the beam attached to the frame and one end of the beam. One or more components are mounted to the beam. The frame and a portion of the beam are separated from each other by a channel which allows portions of the beam to flex substantially independently of the frame when a force is applied to the frame. Thus, the effects resulting from forces applied to the frame are not experienced by the beam, or are at least attenuated, so that the alignment of the components mounted on the beam is substantially preserved.

    摘要翻译： 用于维持部件对准的包装件包括框架和梁，其中梁连接到框架和梁的一端。 一个或多个部件安装到梁上。 框架和梁的一部分通过通道分开，该通道允许当力施加到框架时梁的一部分基本上独立于框架弯曲。 因此，由施加到框架的力产生的影响不受梁的影响，或者至少被衰减，使得安装在梁上的部件的对准被基本保持。

    Ferrofluid 3-D gyroscope and light modulator
    10.
    发明授权
    Ferrofluid 3-D gyroscope and light modulator 失效
    铁磁流体3-D陀螺仪和光调制器

    公开(公告)号：US06400457B2

    公开(公告)日：2002-06-04

    申请号：US09861432

    申请日：2001-05-18

    申请人： Weili Luo ,  Tengda Du ,  Jie Huang

    发明人： Weili Luo ,  Tengda Du ,  Jie Huang

    IPC分类号： G01B902

    CPC分类号： G01P15/006 ,  G01P15/00 ,  G01P15/038 ,  G01P15/093 ,  G01P15/18

    摘要： Apparatus and methods for passing a focused laser beam through a thin ferrofluid cell creates a spatial distribution in the refractive index of the ferrofluid and generates a diffraction ring patterns. Using a pair of perpendicularly placed ferrofluid cells, two sets of diffraction ring patterns can be produced on two viewing screens. Deformations in the diffraction patterns due to an acceleration can be viewed on the screens, providing a ferrofluid accelerometer. By applying an electric or a magnetic field on a thin ferrofluid sample, the light passing through the sample can be modulated by the field, providing a light modulator. The apparatus and method has applications for detecting acceleration information within a gyroscope and for use in toys.

    摘要翻译： 将聚焦激光束通过薄铁流体池的装置和方法在铁磁流体的折射率中产生空间分布并产生衍射环图案。 使用一对垂直放置的铁磁流体电池，可以在两个观察屏幕上产生两组衍射环图案。 可以在屏幕上观察由加速引起的衍射图案的变形，提供铁磁流体加速度计。 通过在薄的铁磁流体样品上施加电场或磁场，通过样品的光可以通过场调制，提供光调制器。 该装置和方法具有用于检测陀螺仪内的加速度信息并用于玩具中的应用。