高度紧凑的集成光学弧形弯曲模式转换器
Highly Compact Integrated Optic Arc Bend Mode Converters
摘要：
随着片上光子集成电路的发展，模分复用-解复用以及其他各种应用都需要结构紧凑、带宽宽的模式转换器。我们提出了一个高度紧凑，易于制造的模式转换器，转换TE 0到TE 1，反之亦然的设计和理论。所提出的设计使用基于绝缘体上硅（SOI）平台的弧形弯曲波导结构，并提供高模式转换效率，低插入损耗，和大的工作带宽。我们使用耦合模理论来分析结构内的模式转换，并进行了FDTD模拟来验证结果。在本工作中的模式转换效率为98.65%的TE 0到TE 1和99.1%的TE 1到TE 0模式转换与器件的足迹为10.5 μ m * 2 μ m的报告。
英文摘要：
With the advances in on-chip photonic integrated circuits, compact and wide bandwidth mode converters are required for mode division multiplexing - demultiplexing and various other applications. We propose the design and theory for a highly compact, easy to fabricate mode converter that converts TE0 to TE1 and vice versa. The proposed design uses an arc bend waveguide structure based on Silicon on Insulator (SOI) platform and offers high mode conversion efficiency, low insertion loss, and large bandwidth of operation. We use coupled-mode theory to analyse the mode conversion within the structure, and FDTD simulations have been performed to verify the results. The mode conversion efficiency of 98.65% for TE0 to TE1 and 99.1% for TE1 to TE0 mode conversion with a device footprint of 10.5 um * 2 um is reported in this work.
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