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首页> 外文期刊>Optical engineering >Photonic crystal ring resonator-based four-channel dense wavelength division multiplexing demultiplexer on silicon on insulator platform: design and analysis
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Photonic crystal ring resonator-based four-channel dense wavelength division multiplexing demultiplexer on silicon on insulator platform: design and analysis

机译:绝缘子平台上基于光子晶体环形谐振器的硅四通道密集波分复用解复用器:设计与分析

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摘要

A microanofabrication feasible compact photonic crystal (PC) ring-resonator-based channel drop filter has been designed and analyzed for operation in C and L bands of communication window. The four-channel demultiplexer consists of ring resonators of holes in two-dimensional PC slab. The proposed assembly design of dense wavelength division multiplexing setup is shown to achieve optimal quality factor, without altering the lattice parameters or resonator size or inclusion of scattering holes. Transmission characteristics are analyzed using the three-dimensional finite-difference time-domain simulation approach. The radiation loss of the ring resonator was minimized by forced cancelation of radiation fields by fine-tuning the air holes inside the ring resonator. An average cross talk of -34 dB has been achieved between the adjacent channels maintaining an average quality factor of 5000. Demultiplexing is achieved by engineering only the air holes inside the ring, which makes it a simple and tolerant design from the fabrication perspective. Also, the device footprint of 500 μm~2 on silicon on insulator platform makes it easy to fabricate the device using e-beam lithography technique.
机译:设计和分析了一种基于微/纳米制造的可行紧凑型光子晶体(PC)环形谐振器的信道下降滤波器,用于在通信窗口的C和L波段中工作。四通道解复用器由二维PC平板中的孔的环形谐振器组成。所建议的密集波分复用设置的组装设计可实现最佳品质因数,而无需更改晶格参数或谐振器尺寸或包含散射孔。使用三维有限差分时域仿真方法分析了传输特性。通过微调环形谐振器内部的气孔,可以通过强制消除辐射场来最大程度地减小环形谐振器的辐射损耗。相邻通道之间的平均串扰为-34 dB,保持平均品质因数为5000。通过仅对环内部的气孔进行工程处理,可以实现多路分解,从制造的角度来看,这是一种简单且容忍的设计。此外,在绝缘体平台上的硅上,器件的占位面积为500μm〜2,这使得使用电子束光刻技术易于制造器件。

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