基于平顶响应的移相光子晶体滤波器

2009 International Conference on Emerging Trends in Electronic and Photonic Devices & Systems Pub Date : 2009-12-01 DOI:10.1109/ELECTRO.2009.5441061

S. Dasgupta, C. Bose

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引用次数: 2

摘要

本文报道了一种具有近平方平顶光谱特性的移相一维光子晶体滤波器的设计。预估相移通过在特定单元电池的介电层中适当的延伸纳入结构。利用传递矩阵法分析了平顶滤波器的性能。这种滤波器的平顶通频带特性是为支持分配信道中信号波长在其容差限制内的偏移而定制的，在粗波分复用(CWDM)系统中，ITU-T G.694.2建议书规定的容差限制为14 nm。

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Phase shifted photonic crystal based filter with flat-top response

In this paper, design of a phase shifted 1D photonic crystal filter with nearly squared flat top spectral characteristics is reported. Estimated phase shifts are incorporated into the structure through proper extension in dielectric layers of specific unit cells. Performance of the flat top filter is analyzed using transfer matrix method. The flat top pass band characteristics of such filter is tailored to support shifts of signal wavelength in an allotted channel within its tolerance limit, which is specified as 14 nm by ITU-T Recommendation G.694.2 in case of a coarse wavelength division multiplexing (CWDM) system.

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2009 International Conference on Emerging Trends in Electronic and Photonic Devices & Systems

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