Optical Waveguide Having Bistable Transmission States Suitable for Optical Logic Circuits
    161.
    发明申请
    Optical Waveguide Having Bistable Transmission States Suitable for Optical Logic Circuits 有权
    具有适用于光逻辑电路的双稳态传输状态的光波导

    公开(公告)号:US20100033786A1

    公开(公告)日:2010-02-11

    申请号:US12442290

    申请日:2006-09-22

    CPC classification number: G02F3/02 G02F2201/02 G02F2202/06

    Abstract: An optical circuit comprises a bistable optical waveguide (34) having a first and a second transmission state. The waveguide is more transmissive to light of a given wavelength in the second state than in the first state. A first light source (11) and a second light source (21) emit light of a first and second wavelength respectively and are coupled to the waveguide at one end. Selective transmission of a sufficient amount of light of the first wavelength through the waveguide “sets” the waveguide, causing it to switch from the first into the second state, whereas transmission of a sufficient amount of light of the second wavelength “resets” the waveguide causing it to switch back from the second into the first state. A sensing or reading (“test”) light source (36) is arranged at the other end of the waveguide to transmit a sensing light signal through the waveguide (34) in the opposite propagation direction to that of light of the first and second wavelengths. This sensing light source can be an external light source or an “internal” source provided by spontaneous emission in the waveguide. A sensor (38) is arranged to detect the amount of the sensing light signal transmitted through the waveguide (34). In this way the waveguide can be set into a given transmission state, which can be determined at a later time by measuring the amount of the sensing light signal transmitted. The optical circuit therefore exhibits a memory effect and may be used to produce an all-optical bistable logic circuit such as an optical latch or an optical flip-flip. Typically, the waveguide (34) is a doped optical fibre, such as an Erbium-Ytterbium (Er—Yb) doped fibre. Light of the first (set)/second (reset) wavelengths excites or de-excites respectively the dopant ions in the fibre thus tuning its transmission.

    Abstract translation: 光学电路包括具有第一和第二传输状态的双稳态光波导(34)。 在第二状态下,波导对于给定波长的光比在第一状态下更透射。 第一光源(11)和第二光源(21)分别发射第一和第二波长的光,并且在一端耦合到波导。 通过波导的第一波长的足够量的光的选择性透射“设置”波导,使其从第一状态切换到第二状态,而第二波长的足够量的光的透射“复位”波导 使其从第二状态切换回到第一状态。 在波导的另一端设置感测或读取(“测试”)光源(36),以将传感光信号通过波导(34)沿与第一和第二波长的光相反的传播方向传输 。 该感测光源可以是由波导中的自发发射提供的外部光源或“内部”源。 传感器(38)布置成检测通过波导(34)传输的感测光信号的量。 以这种方式,波导可以被设置为给定的传输状态,其可以通过测量传输的感测光信号的量在稍后的时间来确定。 因此,光电路呈现存储效应,并且可以用于产生全光双稳态逻辑电路,例如光锁存器或光触发器。 通常,波导(34)是诸如铒 - 镱(Er-Yb)掺杂光纤的掺杂光纤。 第一(设置)/第二(复位)波长的光分别激发或去激励光纤中的掺杂剂离子,从而调整其透射。

    Display device
    163.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号:US07542017B2

    公开(公告)日:2009-06-02

    申请号:US11108732

    申请日:2005-04-19

    CPC classification number: G02F1/1334 G02F2201/02

    Abstract: A display device includes linear structures each having a first conductor linearly extended and a light emitting layer structure which covers at least a part of the conductor, the linear structures being arranged in parallel. The linear structures are electrically insulated by first insulating portions from one another. Second conductors are arranged in parallel so as to cross the linear structures and electrically connected to the light emitting layer structures at crossing portions arranged in a matrix. The linear conductors are electrically insulated by the linear conductors from one another.

    Abstract translation: 显示装置包括各自具有线性延伸的第一导体和覆盖导体的至少一部分的发光层结构的线性结构,线性结构并联布置。 线状结构通过第一绝缘部彼此电绝缘。 第二导体平行布置成与线状结构交叉并且在布置成矩阵的交叉部分电连接到发光层结构。 线性导体由线形导体彼此电绝缘。

    Wavelength conversion module
    164.
    发明授权
    Wavelength conversion module 有权
    波长转换模块

    公开(公告)号:US07327768B2

    公开(公告)日:2008-02-05

    申请号:US11075912

    申请日:2005-03-10

    CPC classification number: G02F1/3534 G02F1/37 G02F2001/3548 G02F2201/02

    Abstract: A wavelength conversion module according to the present invention includes an external resonator, a semiconductor laser module and a wavelength conversion device for converting a wavelength of light output from the semiconductor laser module into a shorter wavelength. This wavelength conversion device includes at least one of a nonlinear crystal for generating SFG (Sum-frequency Generation) light and a nonlinear crystal for generating SHG (Second Harmonic Generation) light. Each of the SFG generating element and the SHG generating element of the wavelength conversion device may have a periodically-poled ridge-waveguide structure or a periodically-poled proton-exchanged-waveguide structure.

    Abstract translation: 根据本发明的波长转换模块包括外部谐振器,半导体激光器模块和用于将从半导体激光器模块输出的光的波长转换成较短波长的波长转换装置。 该波长转换装置包括用于产生SFG(和频产生)光的非线性晶体和用于产生SHG(第二谐波生成)光的非线性晶体中的至少一个。 波长转换装置的SFG生成元件和SHG生成元件中的每一个可以具有周期性极化的脊 - 波导结构或周期性极化的质子交换波导结构。

    Lithium niobate coated optical fiber apparatus and method
    165.
    发明授权
    Lithium niobate coated optical fiber apparatus and method 失效
    铌酸锂涂层光纤设备及方法

    公开(公告)号:US07324732B2

    公开(公告)日:2008-01-29

    申请号:US11551503

    申请日:2006-10-20

    Abstract: An optical fiber sensor having a central core, a cladding layer disposed about the central core, and a thin film of lithium niobate positioned between the core and the cladding layer. Each of the cladding layer and the central core are made from glass materials having different indices of refraction. The refractive index of the lithium niobate film changes when stress is applied to the optical fiber sensor. Accordingly, stress may be detected and measured by detecting and measuring the modulation of light passing through the optical fiber sensor while the stress is occurring.

    Abstract translation: 一种光纤传感器,其具有中心芯,围绕中心芯设置的包层,以及位于芯和包覆层之间的铌酸锂薄膜。 每个包层和中心芯由具有不同折射率的玻璃材料制成。 当对光纤传感器施加应力时,铌酸锂薄膜的折射率发生变化。 因此,可以通过在发生应力的同时检测和测量通过光纤传感器的光的调制来检测和测量应力。

    Polymer phase modulator
    166.
    发明授权
    Polymer phase modulator 有权
    聚合物相调制器

    公开(公告)号:US07302119B1

    公开(公告)日:2007-11-27

    申请号:US11288050

    申请日:2005-11-23

    Abstract: An optical phase modulator comprising a plurality of non-polarizing waveguides having a layered stack including a core between at least one layer of cladding material, wherein the core is constructed of electro-optic material(s), wherein the layers of cladding materials having lower indices of refraction than the core for guided mode, wherein the layer of cladding material having higher indices of refraction than the core for non-guided mode, a substrate dimensioned and configured to integrate a plurality of optical components, wherein the optical components include a plurality of non-polarizing waveguide(s), a waveguide having a non-polarizing non-modulating region and a non-polarizing modulating region, coupler/splitter(s), electrode(s), a waveguide configuration including a first non-polarizing waveguide, a second polarizing waveguide and a third waveguide, and at least two optical fiber pigtails where one is coupled to a second and third waveguide.

    Abstract translation: 一种光学相位调制器,包括多个非偏振波导,其具有包括至少一层包层材料之间的芯的层叠堆叠,其中所述芯由电光材料构成,其中所述包层材料层具有较低的 折射率高于导向芯的折射率,其中包覆材料层具有比非引导模式的芯更高的折射率的层,尺寸为并且被配置为集成多个光学部件的基板,其中光学部件包括多个 非偏振波导,具有非偏振非调制区域和非偏振调制区域的波导,耦合器/分离器,电极,包括第一非偏振波导的波导配置 ,第二偏振波导和第三波导,以及至少两个光纤尾纤,其中一个耦合到第二和第三波导。

    Structures for small form factor LiNbO3 optical modulator
    167.
    发明授权
    Structures for small form factor LiNbO3 optical modulator 有权
    小型LiNbO3光调制器的结构

    公开(公告)号:US07284914B2

    公开(公告)日:2007-10-23

    申请号:US10866949

    申请日:2004-06-12

    CPC classification number: G02F1/0305 G02F1/0107 G02F2201/02

    Abstract: Small form factor package structures are disclosed for LiNbO3 optical modulator by reducing the package dimension for minimize the unused free space inside a modulator package. If a first aspect of the invention, the structure of the small form factor package for LiNbO3 optical modulator employs a metal round block having an inner part that is made of zirconia or glass like borosilicate BK7 or Pyrex and the outer part that is made with stainless steel or kovar. The inner and outer parts represent a two-pieces optical fiber assembly that are held together by a resin. In a second aspect of the invention, a surface of the lithium niobate chip is attached to a surface of the metal round block (or a glass block) that results in an angular positioning of the lithium niobate chip inside the optical package, which significantly reduces the mechanical stress induced by different polishing angle of the metal round block as well as the polishing angle of the lithium niobate chip.

    Abstract translation: 对于LiNbO 3光调制器,通过减小封装尺寸以最小化调制器封装内的未使用的自由空间,公开了小尺寸封装结构。 如果本发明的第一方面,用于LiNbO 3光调制器的小尺寸封装的结构使用具有由氧化锆或玻璃制成的内部的金属圆形块,如硼硅酸盐BK7或Pyrex,外部由不锈钢制成 钢或科瓦尔。 内部和外部表示由树脂保持在一起的两片光纤组件。 在本发明的第二方面,铌酸锂芯片的表面附着在金属圆形块(或玻璃块)的表面上,其导致铌酸锂芯片在光学封装内的角度定位,这显着降低 由金属圆块的不同抛光角度引起的机械应力以及铌酸锂芯片的抛光角度。

    Method and device for processing an optical signal
    168.
    发明授权
    Method and device for processing an optical signal 有权
    用于处理光信号的方法和装置

    公开(公告)号:US07280766B2

    公开(公告)日:2007-10-09

    申请号:US10602623

    申请日:2003-06-25

    Inventor: Shigeki Watanabe

    Abstract: The present invention is a method of processing an optical signal, including the steps of (a) inputting signal light into a first nonlinear optical medium to broaden the spectrum of the signal light through self phase modulation occurring in the first nonlinear optical medium, thereby obtaining first spectrally broadened light, (b) compensating for chromatic dispersion effected on the first spectrally broadened light obtained in the step (a), and (c) inputting the first spectrally broadened light processed by the step (b) into a second nonlinear optical medium to broaden the spectrum of the first spectrally broadened light through self phase modulation occurring in the second nonlinear optical medium, thereby obtaining second spectrally broadened light.

    Abstract translation: 本发明是一种处理光信号的方法,包括以下步骤:(a)将信号光输入到第一非线性光学介质中,以通过在第一非线性光学介质中发生的自相位调制来扩大信号光的光谱,从而获得 (b)补偿在步骤(a)中获得的第一光谱变宽光上产生的色散,和(c)将由步骤(b)处理的第一光谱扩展光输入第二非线性光学介质 通过在第二非线性光学介质中发生的自相位调制来扩大第一光谱变宽的光的光谱,从而获得第二光谱扩展的光。

    Woven material and display device constructed therefrom
    169.
    发明申请
    Woven material and display device constructed therefrom 审中-公开
    由其构成的编织材料和显示装置

    公开(公告)号:US20070197115A1

    公开(公告)日:2007-08-23

    申请号:US10596485

    申请日:2004-12-14

    Abstract: Woven material comprises a first set of electrically conductive elements and a second set of hollow fibres, the hollow fibres containing electrophoretic material. The electrically conductive elements may be substantially perpendicular to the hollow fibres. A third set may also be present, for example, a set of insulated electrically conductive elements (as shown in FIG. 1), substantially parallel to the hollow fibres, or a set of electrically conductive elements, being contained within the hollow fibres, or another set of hollow fibres, also containing electrophoretic material, being substantially perpendicular to the original hollow fibres. A display device comprising the woven material is also described which further includes electrical connectors connecting to the electrically conductive elements and circuitry connected to the electrical connectors and driving the display device.

    Abstract translation: 机织材料包括第一组导电元件和第二组中空纤维,中空纤维含有电泳材料。 导电元件可以基本上垂直于中空纤维。 也可以存在第三组,例如,一组绝缘的导电元件(如图1所示),基本上平行于中空纤维或一组导电元件,包含在中空纤维内,或 还含有电泳材料的另一组中空纤维基本上垂直于原始的中空纤维。 还描述了包括织造材料的显示装置,其还包括连接到导电元件的电连接器和连接到电连接器并驱动显示装置的电路。

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