A wavelength demultiplexing (WDM) structure based on graphene nanoribbon resonators is proposed and simulated using the finite-difference time-domain (FDTD) method. Based on a simple structure, the demultiplexing wavelength and transmission characteristics of the WDM can be tuned by adjusting the length of the resonator, the nanoribbon width, or the chemical potential of graphene within a relative broadband frequency range. Moreover, the mechanism of the proposed WDM structure is analyzed in detail using the theory of Fabry–Perot (F-P) resonance and temporal coupled-mode theory. The proposed structure has promising potential in the field of ultracompact WDM systems in highly integrated optical circuits.

中文翻译：

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基于石墨烯的波长多路分解结构。

提出了一种基于石墨烯纳米带谐振器的波分复用（WDM）结构，并采用时域有限差分法（FDTD）进行了仿真。基于简单的结构，可以通过在相对宽带频率范围内调整谐振器的长度，纳米带宽度或石墨烯的化学势来调整WDM的解复用波长和传输特性。此外，使用法布里-珀罗（FP）共振理论和时间耦合模式理论详细分析了提出的WDM结构的机理。所提出的结构在高度集成的光学电路中的超紧凑WDM系统领域具有广阔的发展潜力。