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CN104459991B 基于平板光子晶体的高偏振度及高消光比TE光开关 失效 - 权利终止 转让

基于平板光子晶体的高偏振度及高消光比TE光开关
摘要：
本发明公开了一种基于平板光子晶体的高偏振度及高消光比TE光开关。它包括上下两层平板光子晶体相连的一个整体；上平板光子晶体为一个TM禁带和完全禁带的第一平板正方晶格光子晶体，第一平板正方晶格光子晶体的元胞由高折射率旋转正方形杆、单个第一平板介质杆和背景介质组成，第一平板介质杆由高折射率介质套管和套管内的低折射率介质组成，或者由一块高折射率平板薄膜组成，或者由一块低折射率介质组成；下平板光子晶体为一个TM完全禁带的第二正方晶格光子晶体,第二正方晶格光子晶体的元胞由高折射率旋转正方形杆、单个第二平板介质杆和背景介质组成；TE光开关频率为0.453～0.458。本发明结构实现了高偏振度及高消光比的TE光开关。
摘要（英）：

The present invention discloses a TEOS based on slab PhCs with a high DOP and large EXR, which comprises an upper slab PhC and a lower slab PhC; the upper slab PhC is a first square-lattice slab PhC with a TM bandgap and a complete bandgap, wherein 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 film, or a low-refractive-index dielectric; the lower slab PhC is a second square lattice slab PhC with a TM bandgap and complete bandgap, wherein the unit cell of the second square-lattice slab PhC includes a high-refractive-index rotating-square pillar, a single second flat dielectric pillar and a background dielectric, and an normalized operating frequency of the TEOS is 0.453 to 0.458.

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