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    • 4. 发明授权
    • Photonic crystal band-shifting device for dynamic control of light transmission
    • 用于光传输动态控制的光子晶体带移装置
    • US08571373B2
    • 2013-10-29
    • US13068830
    • 2011-05-23
    • Xiaolong WangRay T ChenHarish Subbaraman
    • Xiaolong WangRay T ChenHarish Subbaraman
    • G02B6/10
    • G02B6/1225B82Y20/00G02F1/035G02F2202/32
    • An active device for dynamic control of lightwave transmission properties has at least one photonic crystal waveguide that has anti-reflection photonic crystal waveguides with gradually changed group refractive indices at both input and output side. An alternating voltage or current signal applied to two electrically conductive regions changes the refractive indices of the photonic crystal materials, introducing a certain degree of blue-shift or red-shift of the transmission spectrum of the photonic crystal waveguide. The output lightwave with frequency close to the band-edge of the photonic crystal waveguide is controlled by the input electric signal. Devices having one or more such active photonic crystal waveguides may be utilized as an electro-optic modulator, an optical switch, or a tunable optical filter.
    • 用于光波传输特性的动态控制的有源器件具有至少一个光子晶体波导,其具有在反射光子晶体波导处,并且在输入和输出侧都具有逐渐改变的组折射率。 施加到两个导电区域的交流电压或电流信号改变光子晶体材料的折射率,引入光子晶体波导的透射光谱的一定程度的蓝移或红移。 频率接近光子晶体波导的带边的输出光波由输入电信号控制。 具有一个或多个此类有源光子晶体波导的器件可用作电光调制器,光开关或可调光滤波器。
    • 5. 发明申请
    • Photonic crystal band-shifiting device for dynamic control of light transmission
    • 用于光传输动态控制的光子晶体带状移位装置
    • US20120301075A1
    • 2012-11-29
    • US13068830
    • 2011-05-23
    • Xiaolong WangRay T. ChenHarish Subbaraman
    • Xiaolong WangRay T. ChenHarish Subbaraman
    • G02B6/26G02B6/10
    • G02B6/1225B82Y20/00G02F1/035G02F2202/32
    • An active device for dynamic control of lightwave transmission properties has at least one photonic crystal waveguide that has anti-reflection photonic crystal waveguides with gradually changed group refractive indices at both input and output side. An alternating voltage or current signal applied to two electrically conductive regions changes the refractive indices of the photonic crystal materials, introducing a certain degree of blue-shift or red-shift of the transmission spectrum of the photonic crystal waveguide. The output lightwave with frequency close to the band-edge of the photonic crystal waveguide is controlled by the input electric signal. Devices having one or more such active photonic crystal waveguides may be utilized as an electro-optic modulator, an optical switch, or a tunable optical filter.
    • 用于光波传输特性的动态控制的有源器件具有至少一个光子晶体波导,其具有在反射光子晶体波导处,并且在输入和输出侧都具有逐渐改变的组折射率。 施加到两个导电区域的交流电压或电流信号改变光子晶体材料的折射率,引入光子晶体波导的透射光谱的一定程度的蓝移或红移。 频率接近光子晶体波导的带边的输出光波由输入电信号控制。 具有一个或多个此类有源光子晶体波导的器件可用作电光调制器,光开关或可调光滤波器。
    • 6. 发明授权
    • Two-dimensional surface normal slow-light photonic crystal waveguide optical phased array
    • 二维表面正光慢光光子晶体光波导相控阵
    • US08200055B2
    • 2012-06-12
    • US12804263
    • 2010-07-19
    • Harish SubbaramanRay T Chen
    • Harish SubbaramanRay T Chen
    • G02B6/34
    • G02B5/32B82Y20/00G02B1/005G02B6/1225G02F1/2955G02F2202/32G03H1/0408G03H1/30G03H2001/0264
    • Methods and devices for optical beam steering are disclosed including coupling a laser light into an apparatus comprising a first substrate; an array of air core photonic crystal waveguides; columnar members etched around each air core waveguide; a pair of metal electrodes around the columnar members; a trench around the pair of metal electrodes surrounding each air core photonic crystal waveguide; a second substrate coupled to the first substrate comprising electrical interconnection lines; and a holographic fanout array comprising a third substrate; a photopolymer film coated on the third substrate; a hologram written in the photopolymer film configured to couple the laser light into the third substrate; and an array of holograms recorded in the photopolymer film configured to couple a portion of the laser light into the waveguides; and passing a current through the electrodes to induce a refractive index change in the first substrate to control the phase of the portion of the laser light that passes through each waveguide. Other embodiments are described and claimed.
    • 公开了用于光束转向的方法和装置,包括将激光耦合到包括第一基板的装置中; 一系列空心光子晶体波导; 围绕每个空气芯波导蚀刻的柱状构件; 柱状构件周围的一对金属电极; 围绕每个空心光子晶体波导的一对金属电极周围的沟槽; 耦合到包括电互连线的第一衬底的第二衬底; 以及包括第三基板的全息扇出阵列; 涂覆在第三基板上的光聚合物膜; 写入光聚合物膜中的全息图,被配置为将激光耦合到第三基板中; 以及记录在所述光聚合物膜中的全息图阵列,其被配置为将所述激光的一部分耦合到所述波导中; 并且使电流通过电极以在第一衬底中引起折射率变化,以控制通过每个波导的部分激光的相位。 描述和要求保护其他实施例。