Optical isolator using phase modulators
    31.
    发明授权
    Optical isolator using phase modulators 有权
    使用相位调制器的光隔离器

    公开(公告)号:US08768110B2

    公开(公告)日:2014-07-01

    申请号:US13151786

    申请日:2011-06-02

    Abstract: Various exemplary embodiments relate to an optical isolator in an integrated optical circuit including: a first optical modulator configured to provide a first periodic phase modulation on an input optical signal; a second optical modulator configured to provide a second periodic phase modulation on the modulated optical signal; and an optical waveguide having a length L connecting the first optical modulator to the second optical modulator; wherein the phase difference between the first and second periodic phase modulation is π/2, and wherein the length L of the optical waveguide causes a phase delay of π/2 on an optical signal traversing the optical waveguide.

    Abstract translation: 各种示例性实施例涉及集成光学电路中的光隔离器,包括:第一光调制器,被配置为对输入光信号提供第一周期性相位调制; 第二光调制器,被配置为对所述经调制的光信号提供第二周期性相位调制; 以及光波导,其具有将第一光调制器连接到第二光调制器的长度L; 其中所述第一和第二周期相位调制之间的相位差为&pgr / / 2,并且其中所述光波导的长度L在穿过所述光波导的光信号上引起相位延迟为& / 2。

    METHODS AND APPARATUS FOR POWER-EQUALIZED OPTICAL FREQUENCY COMB GENERATION
    32.
    发明申请
    METHODS AND APPARATUS FOR POWER-EQUALIZED OPTICAL FREQUENCY COMB GENERATION 有权
    用于均衡化光电频率生成的方法和装置

    公开(公告)号:US20140178020A1

    公开(公告)日:2014-06-26

    申请号:US13886821

    申请日:2013-05-03

    Abstract: An optical device for generating a frequency comb includes an optical source and a first waveguide comprising a nonlinear optical medium operable to mix at least two input optical waves to generate a plurality of first optical waves. The optical device also includes a second waveguide concatenated to the first waveguide and characterized by a first dispersion characteristics and operable to compress the waveforms of the plurality of first optical waves and to reduce a frequency chirp introduced by the first waveguide. The optical device additionally includes a third waveguide concatenated to the second waveguide. The third waveguide comprises a nonlinear optical medium and is operable to mix the plurality of first optical waves to generate a plurality of second optical waves and to increase a total number of second optical waves with respect to a total number of first optical waves.

    Abstract translation: 用于产生频率梳的光学装置包括光源和包括可操作以混合至少两个输入光波以产生多个第一光波的非线性光学介质的第一波导。 光学装置还包括连接到第一波导的第二波导,其特征在于第一色散特性并且可操作以压缩多个第一光波的波形并且减少由第一波导引入的频率啁啾。 光学装置还包括连接到第二波导的第三波导。 第三波导包括非线性光学介质,并且可操作以混合多个第一光波以产生多个第二光波,并且相对于第一光波的总数增加第二光波的总数。

    Electrochromic display element, display device and information apparatus
    34.
    发明授权
    Electrochromic display element, display device and information apparatus 有权
    电致变色显示元件,显示装置及信息装置

    公开(公告)号:US08743048B2

    公开(公告)日:2014-06-03

    申请号:US13307122

    申请日:2011-11-30

    CPC classification number: G02F1/155 G02F2001/1536 G02F2201/16

    Abstract: A disclosed electrochromic display element includes a display substrate, a counter substrate facing the display substrate, display electrodes arranged between the display substrate and the counter substrate, electrochromic layers formed on the respective display electrodes, a plurality of drive elements arranged on the counter substrate at predetermined intervals, a plurality of pixel electrodes arranged on the drive elements, a charge retention layer formed over the pixel electrodes as a continuous layer, the charge retention layer being formed of a mixed film including a polymer and one of electric conductive microparticles and semiconductor microparticles, and an electrolyte layer sandwitched between the display substrate and the charge retention layer.

    Abstract translation: 所公开的电致变色显示元件包括显示基板,面对显示基板的对置基板,布置在显示基板和对置基板之间的显示电极,形成在各个显示电极上的电致变色层,布置在相对基板上的多个驱动元件 布置在驱动元件上的多个像素电极,形成在像素电极上作为连续层的电荷保持层,电荷保持层由包含聚合物和导电微粒和半导体微粒之一的混合膜形成 以及在显示基板和电荷保持层之间切换的电解质层。

    Optical modulator
    35.
    发明授权
    Optical modulator 有权
    光调制器

    公开(公告)号:US08606053B2

    公开(公告)日:2013-12-10

    申请号:US12634793

    申请日:2009-12-10

    Inventor: Masaki Sugiyama

    Abstract: In an optical modulator, respective lights for where one input light has been branched, are input via a curved waveguide to a plurality of optical modulation sections arranged in parallel on the same substrate. In a Mach-Zehnder type optical waveguide, a spacing between the pair of branching waveguides of the adjacent optical modulation sections, is formed so as to become wider in the vicinity of a border of an input side polarization inversion region than in the vicinity of a start point of an interaction portion. As a result, even if a signal electrode of the optical modulation sections shifts at the boundary portion of the polarization inversion region, the spacing between the signal electrodes does not become narrow, and hence the radius of curvature of curved waveguides for guiding the input light to the respective optical modulation sections can be increased, so that it becomes possible to apply input light to the optical modulation sections at low loss.

    Abstract translation: 在光调制器中,通过弯曲波导将一个输入光已被分支的各个光输入到在同一基板上并联布置的多个光调制部分。 在Mach-Zehnder型光波导中,相邻光调制部分的一对分支波导之间的间隔形成为在输入侧极化反转区域的边界附近比在 互动部分的起点。 结果,即使光调制部的信号电极在极化反转区域的边界部分移动,信号电极之间的间隔也不会变窄,因此用于引导输入光的弯曲波导的曲率半径 可以增加各个光调制部分,使得可以以低损耗将输入光施加到光调制部分。

    DEVICE AND METHOD FOR SELECTING OPTICAL PULSES
    36.
    发明申请
    DEVICE AND METHOD FOR SELECTING OPTICAL PULSES 有权
    用于选择光学脉冲的装置和方法

    公开(公告)号:US20130322806A1

    公开(公告)日:2013-12-05

    申请号:US13910142

    申请日:2013-06-05

    CPC classification number: G02F1/025 G02F1/0121 G02F2201/16

    Abstract: The invention discloses a device for selecting pulses comprising an optical waveguide for guiding the optical radiation along an axis; comprising a first electro-optical modulator designed to modulate the optical transparency of the waveguide; comprising a second electro-optical modulator designed to modulate the optical transparency of the waveguide, wherein the first modulator and the second modulator are arranged one after the other on the axis of the waveguide, and further comprising at least one control circuit designed to actuate the first modulator and the second modulator at offset times, and characterized in that a substrate of a semiconductive material is provided, the waveguide and the at least one control circuit are arranged on the substrate.

    Abstract translation: 本发明公开了一种用于选择脉冲的装置,该装置包括用于沿轴线引导光辐射的光波导; 包括设计成调制波导的光学透明度的第一电光调制器; 包括设计成调制波导的光学透明度的第二电光调制器,其中第一调制器和第二调制器在波导的轴线上一个接一个地布置,并且还包括至少一个控制电路,其被设计成致动 第一调制器和第二调制器,其特征在于,提供半导体材料的衬底,所述波导和所述至少一个控制电路布置在所述衬底上。

    GAIN CONTROL FOR AN OPTICAL MODULATOR
    37.
    发明申请
    GAIN CONTROL FOR AN OPTICAL MODULATOR 有权
    光调制器的增益控制

    公开(公告)号:US20130022306A1

    公开(公告)日:2013-01-24

    申请号:US13551514

    申请日:2012-07-17

    Abstract: There is described an optical modulation system for transmitting modulated optical light. The system comprises an electro-optic modulator having at least two arms through which light is transmitted and an imbalance electrode located on at least one arm. A current source is configured to inject current into the imbalance electrode for modifying the phase of light passing through the arm. A dither generator is configured to modulate the injected current, or bias voltage applied to at least one of the arms, with a dither signal. A phase sensitive detector is configured to detect an error in the phase of light emitted by the modulator. An operating point controller is configured to monitor the detected phase error and adjust the current injected into the imbalance arm so as to compensate for the detected error and thereby control an operating point of the modulator.

    Abstract translation: 描述了用于发射调制光的光调制系统。 该系统包括电光调制器,该电光调制器具有至少两个臂,光穿过该臂传播,并且不平衡电极位于至少一个臂上。 电流源被配置为将电流注入到不平衡电极中,以改变通过臂的光的相位。 抖动发生器被配置为用抖动信号调制施加到至少一个臂的注入电流或偏置电压。 相敏检测器被配置为检测由调制器发射的光的相位中的误差。 操作点控制器被配置为监视检测到的相位误差并调整注入到不平衡臂中的电流,以补偿检测到的误差,从而控制调制器的工作点。

    TUNABLE OPTICAL FILTERS WITH LIQUID CRYSTAL RESONATORS
    38.
    发明申请
    TUNABLE OPTICAL FILTERS WITH LIQUID CRYSTAL RESONATORS 审中-公开
    具有液晶谐振器的可调光滤波器

    公开(公告)号:US20120268709A1

    公开(公告)日:2012-10-25

    申请号:US13091103

    申请日:2011-04-20

    CPC classification number: G02F1/216 G02F2201/16

    Abstract: A voltage-tuned optical filter that is low cost and simple to fabricate uses cascaded etalon modules, each module comprising a liquid crystal etalon, such as a Fabry-Perot etalon, having a relatively small Free Spectral Range (FSR). At least two of the modules are provided with a voltage control to enable Vernier tuning control. For a given overall scan, the voltage-tuned optical filter may operate with reduced voltage ranges for each liquid crystal etalon.

    Abstract translation: 具有低成本且易于制造的电压调节滤光器使用级联标准具模块,每个模块包括具有相对小的自由光谱范围(FSR)的液相标准具,例如法布里 - 珀罗标准具。 至少两个模块设置有电压控制,以实现游标调谐控制。 对于给定的整体扫描,电压调谐滤光器可以在每个液晶标准具的电压范围降低的情况下工作。

    Imaging apparatus and methods
    39.
    发明授权
    Imaging apparatus and methods 有权
    成像设备和方法

    公开(公告)号:US08294977B2

    公开(公告)日:2012-10-23

    申请号:US12440809

    申请日:2007-09-12

    Abstract: Methods, systems and apparatus for manipulating electromagnetic radiation such as laser beams. A method and apparatus for correcting magnification chromatic aberration utilizes one or more dispersive lenses such that long wavelength components are magnified less than short wavelength components. A telecentric relay is preferred to achieve this aim. Further, the use of polarizers to block the undesired zeroth order components of diffraction emanating from acousto-optic deflectors (AODs) is disclosed. Furthermore, specific designs of AOD including narrow transducer AODs which produce a diverging acoustic wave and AODs having two transducers and a selection switch are disclosed. Further, the invention provides methods, systems and apparatus for allowing the wavelength of radiation to be changed, for providing a user selectable degree of compensation, for providing a scanning and/or a pointing system and for providing a compact system that does not require telecentric relays between adjacent acousto-optic deflectors.

    Abstract translation: 用于操纵诸如激光束之类的电磁辐射的方法,系统和装置。 用于校正倍率色差的方法和装置利用一个或多个分散透镜,使得长波长分量放大小于短波长分量。 远心继电器是实现这一目标的首选。 此外,公开了使用偏振器来阻止从声光偏转器(AOD)发出的衍射的不希望的零级分量。 此外,公开了包括产生发声声波的窄传感器AOD和具有两个换能器的AOD和选择开关的AOD的具体设计。 此外,本发明提供了用于允许改变辐射波长的方法,系统和装置,以提供用户可选择的补偿程度,用于提供扫描和/或指示系统,并提供不需要远心的紧凑系统 相邻声光偏转器之间的继电器。

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