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41 条记录 (耗时 0.018 秒)

    Thin film crystallization device and method for making a polycrystalline composition
    1.
    发明申请
    Thin film crystallization device and method for making a polycrystalline composition 审中-公开
    薄膜结晶装置及其制造方法

    公开(公告)号：US20120190180A1

    公开(公告)日：2012-07-26

    申请号：US12931067

    申请日：2011-01-24

    申请人： Joseph D. LoBue ,  Dingyuan Lu ,  Louay Eldada

    发明人： Joseph D. LoBue ,  Dingyuan Lu ,  Louay Eldada

    IPC分类号： H01L21/20 ,  H01B1/02 ,  B01J19/00 ,  H01B1/00

    CPC分类号： H01L21/02554 ,  H01L21/02562 ,  H01L21/02568 ,  H01L21/0262 ,  H01L31/0321 ,  H01L31/0326 ,  H01L31/1828 ,  Y02E10/543 ,  Y02P70/521

    摘要： A method for making a polycrystalline composition, wherein the method includes the steps of a) preparing a precursor material, b) heating the precursor material to a reaction temperature in the presence of a precursor vapor supplied from a source at a preselected partial pressure, for a sufficient time to initiate an interaction between the precursor material and the precursor vapor to form a heated precursor material, and c) cooling the heated precursor material at a predetermined cooling rate, optionally, in the presence of the precursor vapor supplied at a partial pressure, to yield the polycrystalline composition. A device for implementing the method of the present invention is also provided

    摘要翻译： 一种制备多晶组合物的方法，其中所述方法包括以下步骤：a）制备前体材料，b）在预选分压下从源提供的前体蒸气存在下，将前体材料加热到反应温度， 足够的时间来引发前体材料和前体蒸气之间的相互作用以形成加热的前体材料，以及c）以预定的冷却速率冷却被加热的前体材料，任选地，在分压下供应的前体蒸气 ，以产生多晶组合物。 还提供了一种用于实现本发明的方法的设备

    Polarization independent waveguide optical isolator and circulator
    4.
    发明授权
    Polarization independent waveguide optical isolator and circulator 有权

    公开(公告)号：US06947619B2

    公开(公告)日：2005-09-20

    申请号：US11031932

    申请日：2005-01-07

    申请人： Junichiro Fujita ,  Reinald Gerhardt ,  Neil Lagali ,  Louay Eldada

    发明人： Junichiro Fujita ,  Reinald Gerhardt ,  Neil Lagali ,  Louay Eldada

    IPC分类号： G02F1/095 ,  G02F1/313 ,  G02B6/00 ,  F01B9/02 ,  G02B6/26 ,  G02B6/42

    CPC分类号： G02F1/0955 ,  G02F1/3136 ,  G02F2001/212

    摘要： Polarization independent optical isolator/circulator devices based on Mach-Zehnder interferometers. The devices utilize either polarization splitting and nonreciprocal polarization conversion or nonreciprocal phase shift within the interferometric arm. For devices with nonreciprocal phase shift, the relative phase difference is 0° in the forward propagation direction and 180° in the backward propagation direction, or vice versa, so that light goes into a bar or cross port depending on the propagation direction. The devices have advantages over previous designs in the use of inexpensive device components, simple alignment, minimal space requirement, and negligible polarization mode dispersion or polarization dependent loss. In addition, the devices can be made in a waveguide form with minimal loss and with high fabrication ease. An additional phase compensator and/or a variable attenuator can be integrated in order to relax the fabrication tolerances.

    Polarization independent waveguide optical isolator and circulator
    5.
    发明申请
    Polarization independent waveguide optical isolator and circulator 有权
    偏振独立波导光隔离器和循环器

    公开(公告)号：US20050134960A1

    公开(公告)日：2005-06-23

    申请号：US11031932

    申请日：2005-01-07

    申请人： Junichiro Fujita ,  Reinald Gerhardt ,  Neil Lagali ,  Louay Eldada

    发明人： Junichiro Fujita ,  Reinald Gerhardt ,  Neil Lagali ,  Louay Eldada

    IPC分类号： G02F1/095 ,  G02F1/313 ,  G02B5/30 ,  G02B27/28

    CPC分类号： G02F1/0955 ,  G02F1/3136 ,  G02F2001/212

    摘要： Polarization independent optical isolator/circulator devices based on Mach-Zehnder interferometers. The devices utilize either polarization splitting and nonreciprocal polarization conversion or nonreciprocal phase shift within the interferometric arm. For devices with nonreciprocal phase shift, the relative phase difference is 0° in the forward propagation direction and 180° in the backward propagation direction, or vice versa, so that light goes into a bar or cross port depending on the propagation direction. The devices have advantages over previous designs in the use of inexpensive device components, simple alignment, minimal space requirement, and negligible polarization mode dispersion or polarization dependent loss. In addition, the devices can be made in a waveguide form with minimal loss and with high fabrication ease. An additional phase compensator and/or a variable attenuator can be integrated in order to relax the fabrication tolerances.

    摘要翻译： 基于马赫 - 曾德尔干涉仪的偏振独立光隔离器/循环器。 该器件利用干涉测量臂内的偏振分离和非互相偏振转换或非相互相移。 对于具有不可逆相移的器件，正向传播方向的相对相位差为0°，反向传播方向的相对相位差为180°，反之亦然，因此根据传播方向，光线进入条形或交叉端口。 这些器件在使用便宜的器件组件，简单校准，最小空间要求以及可忽略的偏振模色散或极化相关损耗方面具有优于先前设计的优点。 此外，器件可以以最小的损耗和高的制造容易度以波导形式制造。 可以集成附加的相位补偿器和/或可变衰减器以便放宽制造公差。

    Low stress optical waveguide having conformal cladding and fixture for precision optical interconnects
    6.
    发明授权
    Low stress optical waveguide having conformal cladding and fixture for precision optical interconnects 失效
    低应力光波导，其具有适形精密光纤互连的包层和夹具

    公开(公告)号：US5850498A

    公开(公告)日：1998-12-15

    申请号：US838342

    申请日：1997-04-08

    申请人： Lawrence W. Shacklette ,  Kelly M. T. Stengel ,  Louay Eldada ,  James T. Yardley ,  Chengzeng Xu

    发明人： Lawrence W. Shacklette ,  Kelly M. T. Stengel ,  Louay Eldada ,  James T. Yardley ,  Chengzeng Xu

    IPC分类号： G02B6/122 ,  G02B6/13 ,  G02B6/30 ,  G02B6/10

    CPC分类号： G02B6/1221 ,  G02B6/30

    摘要： The invention provides a low stress optical waveguide assembly wherein one or more waveguide cores have a conformal cladding in register the waveguide core. The core and cladding are preferably lithographically formed on a substrate. A connector assembly provides for the precision interconnection of mating arrays of parallel optical waveguides. The connector assembly has a base with several parallel channel walls cut along a surface of the base. A waveguide assembly is positioned on the base. The waveguide assembly comprises a substrate and one or more transparent, polymeric waveguides on and raised from a surface of the substrate. A conformal cladding is in register with the waveguide core. Such conformal cladding contributes to a reduction in waveguide stress. The waveguide assembly is positioned on the base such that each of the waveguides is set in one of the channels and contacts the walls of the channel. A cover plate holds the waveguide assembly on the base.

    摘要翻译： 本发明提供了一种低应力光波导组件，其中一个或多个波导芯具有对准波导芯的共形包层。 芯和包层优选地光刻地形成在基底上。 连接器组件提供并联光波导的配合阵列的精密互连。 连接器组件具有基部，其具有沿着基部的表面切割的多个平行的通道壁。 波导组件位于基座上。 波导组件包括衬底和在衬底的表面上并在其上升起的一个或多个透明聚合物波导。 保形包层与波导芯对准。 这种共形包层有助于减小波导应力。 波导组件定位在基座上，使得每个波导被设置在通道中的一个中并且接触通道的壁。 盖板将波导组件固定在基座上。

    Solid state optical phased array lidar and method of using same
    7.
    发明授权
    Solid state optical phased array lidar and method of using same 有权

    公开(公告)号：US10132928B2

    公开(公告)日：2018-11-20

    申请号：US14230013

    申请日：2014-03-31

    申请人： Louay Eldada ,  Tianyue Yu ,  Angus Pacala

    发明人： Louay Eldada ,  Tianyue Yu ,  Angus Pacala

    IPC分类号： G01C3/08 ,  G01S17/89 ,  G01S7/481

    摘要： A lidar-based apparatus and method are used for the solid state steering of laser beams using Photonic Integrated Circuits. Integrated optic design and fabrication micro- and nanotechnologies are used for the production of chip-scale optical splitters that distribute an optical signal from a laser essentially uniformly to an array of pixels, said pixels comprising tunable optical delay lines and optical antennas. Said antennas achieve out-of-plane coupling of light.As the delay lines of said antenna-containing pixels in said array are tuned, each antenna emits light of a specific phase to form a desired far-field radiation pattern through interference of these emissions. Said array serves the function of solid state optical phased array.By incorporating a large number of antennas, high-resolution far-field patterns can be achieved by an optical phased array, supporting the radiation pattern beam forming and steering needed in solid state lidar, as well as the generation of arbitrary radiation patterns as needed in three-dimensional holography, optical memory, mode matching for optical space-division multiplexing, free space communications, and biomedical sciences. Whereas imaging from an array is conventionally transmitted through the intensity of the pixels, the optical phased array allows imaging through the control of the optical phase of pixels that receive coherent light waves from a single source.