The photonic band structures of waves in configuration-periodic equilateral polygonal networks (EPNs) are studied in the paper. The results indicate that comb-like optical transmission spectrum can be realized by EPNs.The number, width, and range of continuous equidistant frequency bands can be controlled conveniently by adjusting the waveguide length and the unit cell numbers of upper arm. Those comb-like frequency bands have potential in the design optical narrowband filters, multichannel filters, and optical switching.

中文翻译：

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由等边多边形网络产生的可调谐梳状光传输光谱

本文研究了配置周期等边多边形网络（EPNs）中波的光子能带结构。结果表明，EPNs可以实现梳状光传输光谱。通过调整波导长度和上臂的晶胞数量，可以方便地控制连续等距频带的数量、宽度和范围。这些梳状频带在设计光学窄带滤波器、多通道滤波器和光开关方面具有潜力。