Engineering Research Equipment Grant - Fabrication and Measurement of New Effects in Linear and Nonlinear Intersecting Optical Waveguide Devices

相交的光波导是用于制造光学器件的基本元件。 集成光学器件 此前的申请一直受到限制 因为这种几何学缺乏严格的理论。 这样的理论已经被P.I.和 随后预测了几个意想不到的光学特性。 预测也得到了实验证实。 理论分析 将扩展到检查新的光波导器件的基础上， 交叉波导并结合电光和 高阶非线性效应 电光器件将包括高密度开关阵列、可调谐开关阵列和可调谐开关阵列。 波长滤波器和离散频谱分析仪。 分析 将遵循这些设备的设计和制造， LiNbO3。 相交指南的理论来处理的情况下， 光学非线性衬底也将被扩展。 掺入 将交叉波导结构转化为具有（合理） 三阶非线性设计。 导模和辐射模耦合结果将是： 集成到一个单一的耦合模理论。 这将允许 同时考虑辐射损耗和波导间 耦合分析与设计 交叉波导装置。

Intersecting optical waveguides are an essential element for integrated optic devices. Previous applications have been limited because of the absence of a rigorous theory for this geometry. Such a theory has already been developed by the P.I. and subsequently predicted several unexpected optical characteristics. Also predictions were confirmed experimentally. Theoretical analysis will be extended to examine new optical waveguide devices based on intersecting waveguides and incorporating the electro-optic and higher order nonlinear effects. Electro-optic devices will include high density switch arrays, tunable wavelength filters, and discrete spectrum analyzers. The analysis will be followed by design and fabrication of these devices in LiNbo3. Theory of intersecting guides to treat the case of an optically nonlinear substrate will also be extended. Incorporation of the intersecting waveguide structure into a medium with (reasonable) third order nonlinearity intended. The guided mode and radiation mode coupling results will be integrated into a single coupled-mode theory. This will permit simultaneously accounting for radiation loss and interwaveguide coupling in the analysis and design of intersecting waveguide devices.