Compact Optical Key Based on a Two-Dimensional Photonic Crystal with 60 Degree Folding

    公开(公告)号:US20170097557A1

    公开(公告)日:2017-04-06

    申请号:US15313123

    申请日:2015-05-22

    Abstract: The present invention is based on a two-dimensional photonic crystal in which are inserted, in a controlled manner, defects that originate the waveguides and the resonant cavity that integrate the device. Its main function is to provide the control of the passage of an electromagnetic signal over a communications channel, blocking (state off) or allowing (state on) the passage of the signal. It also has the function of changing the propagation direction of an electromagnetic signal by an angle of 60 degrees, offering greater flexibility in the design of integrated optical systems. The operating principle of the device is associated with the excitation of dipole modes in the resonant cavity, which is based on a magneto-optical material. When the switch is under the influence of an external DC magnetic field H0, a rotating dipole mode excited in the cavity allows the passage of the input signal to the output (state on), whereas without the application of H0, a stationary dipole mode excited in the cavity, with the nodes aligned to the output waveguide, prevents the passage of the input signal to the output (state off).

    OPTICAL MODULATION APPARATUS, OPTICAL TRANSMITTER AND CONTROLLING METHOD FOR OPTICAL MODULATOR
    123.
    发明申请
    OPTICAL MODULATION APPARATUS, OPTICAL TRANSMITTER AND CONTROLLING METHOD FOR OPTICAL MODULATOR 有权
    光学调制装置,光学发射机和光学调制器的控制方法

    公开(公告)号:US20150316794A1

    公开(公告)日:2015-11-05

    申请号:US14312244

    申请日:2014-06-23

    Inventor: Akinori Hayakawa

    Abstract: An optical modulation apparatus includes an optical modulation unit that includes a plurality of ring optical modulators which are coupled in cascade to each other and the ring optical waveguides of which have round-trip lengths different from each other, and a controller that performs, for at least one of the ring optical modulators, first resonance wavelength adjustment control to adjust the resonance wavelength of the ring optical modulator to one input light wavelength, performs second resonance wavelength adjustment control to specify the ring optical modulator that exhibits a minimum current amount required for the adjustment of the resonance wavelength of the ring optical waveguide to the one input light wavelength from among the ring optical modulators and adjust the resonance wavelength of the specified ring optical modulator to the one input light wavelength, and performs modulation driving control for the specified ring optical modulator.

    Abstract translation: 光调制装置包括光调制单元,该光调制单元包括多个级联耦合的环形光调制器,并且其环形光波导具有彼此不同的往返行程长度;以及控制器, 环形光调制器中的至少一个,将环形光调制器的谐振波长调整到一个输入光波长的第一谐振波长调节控制,执行第二谐振波长调节控制,以指定呈现出最小电流量的环形光调制器, 将环形光波导的共振波长调整为来自环形光调制器的一个输入光波长,并将指定的环形光调制器的谐振波长调整到一个输入光波长,并对指定的环形光学器件进行调制驱动控制 调制器。

    Geometries for electrooptic modulation with χ2 materials in silicon waveguides
    126.
    发明授权
    Geometries for electrooptic modulation with χ2 materials in silicon waveguides 失效
    在硅波导中用χ2材料进行电光调制的几何

    公开(公告)号:US08380016B1

    公开(公告)日:2013-02-19

    申请号:US12796999

    申请日:2010-06-09

    Abstract: An apparatus for providing electrooptic modulation. The apparatus includes electrical contacts, a waveguide coupled between the electrical contacts, and a nonlinear optical material positioned in the slot region. The waveguide includes a first arm and a second arm that are each arranged to define a slot region for confining an optical mode. The slot region has a height, t1, and each of the first arm and the second arm include a strip load region having a height that is less than the height, t1, of the slot region. Each of the first arm and the second arm is configured to provide an electrical signal to the slot region via at least one of the electrical contacts. In one embodiment, the nonlinear optical material includes a χ2-based material. In another embodiment, each of the first arm and the second arm have an “L”-type shape.

    Abstract translation: 一种用于提供电光调制的装置。 该装置包括电触点,耦合在电触点之间的波导和位于槽区中的非线性光学材料。 波导包括第一臂和第二臂,每个臂布置成限定狭缝区域以限制光学模式。 槽区域具有高度t1,并且第一臂和第二臂中的每一个包括具有小于槽区域的高度t1的高度的条带加载区域。 第一臂和第二臂中的每一个被配置为经由至少一个电触点向缝隙区域提供电信号。 在一个实施例中,非线性光学材料包括基于χ2的材料。 在另一实施例中,第一臂和第二臂中的每一个具有L型形状。

    Optical control device
    127.
    发明授权
    Optical control device 有权
    光控装置

    公开(公告)号:US08208776B2

    公开(公告)日:2012-06-26

    申请号:US12522809

    申请日:2008-01-10

    Abstract: There is provided an optical control device including a plurality of line-defect waveguides provided in a photonic crystal; each line-defect waveguide including a multiplicity of dielectric pillars with a finite height arranged at lattice points of a two-dimensional Bravais lattice. The optical control device comprises: a first line-defect waveguide; a second line-defect waveguide provided with the dielectric pillars having a thickness different from that of the dielectric pillars of the first line-defect waveguide; and a third line-defect waveguide arranged between the first and second line-defect waveguides and provided with the dielectric pillars whose thicknesses are gradually varied from those of the dielectric pillars of the first line-defect waveguide to those of the dielectric pillars of the second line-defect waveguide along a wave guiding direction.

    Abstract translation: 提供了一种光控制装置,其包括设置在光子晶体中的多个线缺陷波导; 每条线缺陷波导包括多个具有布置在二维布拉维点阵的格点处的有限高度的介电柱。 光控制装置包括:第一线缺陷波导; 第二线缺陷波导,其设置有与第一线缺陷波导的介电柱的厚度不同的介电柱; 以及布置在第一和第二线路缺陷波导之间的第三线路缺陷波导,并且设置有介电柱,其厚度从第一线路缺陷波导的介电柱的介质柱逐渐变化到第二线缺陷波导的介电柱的介质柱 沿着波导方向的线 - 缺陷波导。

    OPTICAL CONTROL DEVICE
    129.
    发明申请
    OPTICAL CONTROL DEVICE 有权
    光控装置

    公开(公告)号:US20100014821A1

    公开(公告)日:2010-01-21

    申请号:US12522809

    申请日:2008-01-10

    Abstract: There is provided an optical control device including a plurality of line-defect waveguides provided in a photonic crystal; each line-defect waveguide including a multiplicity of dielectric pillars with a finite height arranged at lattice points of a two-dimensional Bravais lattice. The optical control device comprises: a first line-defect waveguide; a second line-defect waveguide provided with the dielectric pillars having a thickness different from that of the dielectric pillars of the first line-defect waveguide; and a third line-defect waveguide arranged between the first and second line-defect waveguides and provided with the dielectric pillars whose thicknesses are gradually varied from those of the dielectric pillars of the first line-defect waveguide to those of the dielectric pillars of the second line-defect waveguide along a wave guiding direction.

    Abstract translation: 提供了一种光控制装置,其包括设置在光子晶体中的多个线缺陷波导; 每条线缺陷波导包括多个具有布置在二维布拉维点阵的格点处的有限高度的介电柱。 光控制装置包括:第一线缺陷波导; 第二线缺陷波导,其设置有与第一线缺陷波导的介电柱的厚度不同的介电柱; 以及布置在第一和第二线路缺陷波导之间的第三线路缺陷波导,并且设置有介电柱,其厚度从第一线路缺陷波导的介电柱的介质柱逐渐变化到第二线缺陷波导的介电柱的介质柱 沿着波导方向的线 - 缺陷波导。

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