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Optimized 1×8 compact splitter based on photonic crystal using the two-dimensional finite-difference time-domain technique

机译：基于二维有限差分时域技术的基于光子晶体的优化1×8紧凑型分束器

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The main objective of this study is to optimize an optical component considered as an essential building block in wavelength division multiplexing applications. The work presented here focuses on the design of an optimum 1 × 8 compact splitter based on a two-dimensional (2-D) photonic crystal (PhC) in triangular unit cells exhibiting high transmission. It generates a contribution to the 2-D planar PhCs in the integrated optics field. These new materials may prohibit the propagation of light in certain directions and energies. We also optimize the splitter topologies in order to integrate them in optoelectronic systems as division components. To do so, the 2-D finite-difference time-domain method is employed to characterize the transmission properties. Simulation results show that total transmissions of about 86%, 78%, and 86% for the 1 × 2, 1 × 4, and 1 × 8 Y splitters, respectively, at output ports are obtained around the wavelength 1.55 μm widely used in optical telecommunications. It is demonstrated numerically that the corresponding total insertion losses for the three splitters are, respectively. about 0.65,1.08, and 0.65 dB. The simulation results are presented and discussed.
机译：这项研究的主要目的是优化被视为波分复用应用中必不可少的组成部分的光学组件。本文介绍的工作着重于在具有高透射率的三角形晶胞中基于二维（2-D）光子晶体（PhC）设计最佳的1×8紧凑型分离器。它为集成光学领域的二维平面PhC做出了贡献。这些新材料可能会阻止光沿某些方向和能量传播。我们还优化了分离器拓扑，以便将它们作为分割组件集成到光电系统中。为此，采用二维有限差分时域方法来表征传输特性。仿真结果表明，分别在输出端口获得的波长约为1.55μm的1×2、1×4和1×8 Y分光器的总透射率分别约为86％，78％和86％。电信。数值证明，三个分离器的相应总插入损耗分别为。约为0.65、1.08和0.65 dB。给出并讨论了仿真结果。

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