POLARIZATION INDEPENDENT OPTICAL SWITCH WITH HIGH EXTINCTION RATIO BASED ON SLAB PHOTONIC CRYSTALS

    公开(公告)号:US20170293078A1

    公开(公告)日:2017-10-12

    申请号:US15626161

    申请日:2017-06-18

    Abstract: The present invention discloses a PIOS with a high extinction ratio based on slab PhCs which comprises an upper slab PhC and a lower slab PhC connected as a whole; the upper slab PhC is a first square-lattice slab PhC, the unit cell of the first square-lattice slab PhC includes a high-refractive-index rotating square pillar, a single first flat dielectric pillar and a background dielectric; the first flat dielectric pillar includes a high-refractive-index dielectric pipe and a low-refractive-index dielectric, or a high-refractive-index flat films, or a low-refractive-index dielectric; the lower slab PhC is a second square-lattice slab PhC with a complete bandgap, the unit cell of said second square-lattice slab PhC includes a high-refractive-index rotating square pillar, a single second flat dielectric pillar and a background dielectric is a low-refractive-index dielectric; and an normalized frequency of the optical switch is 0.41 to 0.4167.

    Multi-segment ring modulator
    74.
    发明授权

    公开(公告)号:US09784995B2

    公开(公告)日:2017-10-10

    申请号:US14976290

    申请日:2015-12-21

    Applicant: RANOVUS INC.

    Abstract: A device that includes a multi-segment ring modulator is provided. In particular, the device comprises: an optical waveguide; an optical ring modulator optically coupled to the optical waveguide; a first voltage control device along a first segment of the optical ring modulator; a second voltage control device along a second segment of the optical ring modulator; a first driver device configured to control the first voltage control device to a first voltage and a second voltage; and, a second driver device configured to control the second voltage control device to a third voltage and a fourth voltage. In particular implementations, a ratio of a length of the first segment to a length of the second segment can be one or more of about 2:1 and greater than 1:1, and non-linear driver devices can be used.

    MULTI-SEGMENT RING MODULATOR
    76.
    发明申请

    公开(公告)号:US20170176779A1

    公开(公告)日:2017-06-22

    申请号:US14976290

    申请日:2015-12-21

    Applicant: RANOVUS INC.

    Abstract: A device that includes a multi-segment ring modulator is provided. In particular, the device comprises: an optical waveguide; an optical ring modulator optically coupled to the optical waveguide; a first voltage control device along a first segment of the optical ring modulator; a second voltage control device along a second segment of the optical ring modulator; a first driver device configured to control the first voltage control device to a first voltage and a second voltage; and, a second driver device configured to control the second voltage control device to a third voltage and a fourth voltage. In particular implementations, a ratio of a length of the first segment to a length of the second segment can be one or more of about 2:1 and greater than 1:1, and non-linear driver devices can be used.

    OPTICAL WAVEGUIDE DEVICE
    78.
    发明申请
    OPTICAL WAVEGUIDE DEVICE 有权
    光波器件

    公开(公告)号:US20130064492A1

    公开(公告)日:2013-03-14

    申请号:US13583593

    申请日:2011-03-09

    Abstract: An optical waveguide device having a Mach-Zehnder type waveguide formed on a substrate is provided in which a slope of two waveguides input to an optical coupler on an output side of the Mach-Zehnder type waveguide is 0 degrees, a waveguide of the optical coupler after being coupled by the optical coupler is a multi-mode waveguide, and the waveguide which is output from the optical coupler is a three-branched waveguide including an output main waveguide and two output sub waveguides interposing the output main waveguide therebetween.

    Abstract translation: 提供了一种在基板上形成有马赫 - 曾德尔型波导的光波导器件,其中输入到马赫 - 策德尔型波导输出侧的光耦合器的两个波导的斜率为0度,光耦合器的波导 在由光耦合器耦合之后是多模波导,并且从光耦合器输出的波导是包括输出主波导的三分支波导和插入其中的输出主波导的两个输出子波导。

    OPTICAL CONTROL DEVICE
    80.
    发明申请
    OPTICAL CONTROL DEVICE 失效
    光控装置

    公开(公告)号:US20120195565A1

    公开(公告)日:2012-08-02

    申请号:US13443385

    申请日:2012-04-10

    Abstract: Disclosed is an optical delay element that makes use of a line-defect waveguide of a photonic crystal, in which long optical delay time and small group speed dispersion are rendered compatible with each other and in which waveform distortion that might otherwise be produced in processing an ultra-high speed signal is eliminated. Two line-defect waveguides 5 and 11, having different pillar diameters and group velocity dispersions of opposite signs, are interconnected by a line-defect waveguide 8, the pillar diameters of which are gradually varied from one 5 of the line-defect waveguides to the other line-defect waveguide 11, such as to compensate for group speed dispersion as well as to maintain an optical delay effect.

    Abstract translation: 公开了一种光延迟元件,其利用光子晶体的线缺陷波导,其中长的光延迟时间和小群速度色散彼此兼容,并且其中在处理中可能产生的波形失真 消除了超高速信号。 具有不同柱直径和相反符号的群速度分散的两条线缺陷波导5和11通过线缺陷波导8相互连接,其直径从线缺陷波导的5个逐渐变化到 其他线路缺陷波导11,例如补偿组速度色散以及保持光学延迟效果。

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