公开(公告)号：US20050111775A1

公开(公告)日：2005-05-26

申请号：US10924753

申请日：2004-08-23

申请人： Vitaly Fridman ,  Leo Finkelstein ,  Bruce Gray

发明人： Vitaly Fridman ,  Leo Finkelstein ,  Bruce Gray

IPC分类号： G02B6/12 ,  G02F1/03 ,  G02F1/035 ,  H01L20060101

CPC分类号： G02F1/0327 ,  G02F1/035 ,  G02F2202/32

摘要： A re-configurable optical waveguide includes an electro-optic substrate and plurality of electrodes above substrate. Electrodes are forming photonic crystal waveguide with photonic crystal periodic structure which has a slab optical waveguide on the top surface of a substrate and also has refractive index variation areas due to electro-optical effect with a different refractive index from that of the core layer of the slab optical waveguide arranged in a lattice array shape at part of the slab optical waveguide. In this case, the refractive index variation areas are formed of the same material as the material constituting the core layer of the slab optical waveguide. The refractive index variation areas are arranged in the lattice array shape on both the sides of an optical waveguide area, where light is propagated. The refractive index of the core layers of the refractive index variation areas is larger than that of the core layer of an area of the refractive index variation area. A plurality of electrodes are placed a field emission array with structure density possibly being higher than 10+8 per square centimeter. Groups of the structures are united in pixels with size a equal to the waveguide's width. Different arrays of pixels form variable shapes and, appropriately, variable waveguides. Thus light propagates in the different directions according the waveguide which is formed. Such a waveguide allows implementation of different optical functions simply by changing the arrangement of the patterns. Arrangement of the patterns is controlled with integrated transistor structure, and with a coupled control circuit.

摘要翻译： 可重构的光波导包括电光基板和在基板上方的多个电极。 电极正在形成具有光子晶体周期性结构的光子晶体波导，其在衬底的顶表面上具有平板光波导，并且由于电光效应而具有折射率变化区域，其折射率与不同于 在平板光波导的一部分处布置成格子阵列形状的平板光波导。 在这种情况下，折射率变化区域由与构成平板光波导的芯层的材料相同的材料形成。 折射率变化区域以光线传播的光波导区域的两侧排列成格子阵列形状。 折射率变化区域的芯层的折射率大于折射率变化区域的芯层的折射率。 多个电极被放置为具有可能高于每平方厘米10 + 8的结构密度的场发射阵列。 结构的组合在尺寸等于波导宽度的像素中。 不同的像素阵列形成可变形状，并且适当地形成可变波导。 因此，根据所形成的波导，光在不同的方向上传播。 这样的波导允许简单地通过改变图案的布置实现不同的光学功能。 图案的排列通过集成晶体管结构和耦合控制电路进行控制。