In this paper an all optical analog to digital convertor was proposed based on photonic crystals. Four nonlinear ring resonators were used for designing a nonlinear demultiplexer, which can produce discrete levels of optical intensities from the input analog signal. Then by creating suitable connections between the output channels and waveguides of the demultiplexer, the coding section was created and the final structure was realized. For the proposed structure the maximum delay time is about 4 ps.

中文翻译：

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使用非线性光子晶体环形谐振器的全光模数转换器

本文提出了一种基于光子晶体的全光模数转换器。四个非线性环形谐振器用于设计非线性解复用器，它可以从输入模拟信号中产生离散的光强度水平。然后通过在解复用器的输出通道和波导之间建立合适的连接，创建编码部分并实现最终结构。对于建议的结构，最大延迟时间约为 4 ps。