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All optical 2-bit analog to digital converter using photonic crystal based cavities

机译:使用基于光子晶体的腔的全光学2位模数转换器

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摘要

A novel design for realizing all optical analog to digital converter will be proposed in this paper. The proposed structure consists of two main parts; a nonlinear 3-channel demultiplexer, followed by an optical coder. The nonlinear demultiplexer will be used to quantize the input analog signal according to its optical intensity and the coder will convert the quantized levels into 2-bit binary codes. The nonlinear demultiplexer will be realized using three nonlinear resonant cavities. At appropriate values of input signal optical intensity one of the cavities can drop the optical beam to its corresponding output port. The proposed structure is capable of supporting maximum sampling rate up to 52 GS/ s and total footprint of the structure is about 924 μm~2.
机译:本文将提出一种用于实现所有光学模数转换器的新颖设计。拟议的结构包括两个主要部分;非线性3通道解复用器,然后是光编码器。非线性解复用器将用于根据其光强度对输入的模拟信号进行量化,而编码器会将量化后的电平转换为2位二进制代码。非线性解复用器将使用三个非线性谐振腔来实现。在适当的输入信号光强度值下,空腔之一可以使光束下降到其相应的输出端口。所提出的结构能够支持高达52 GS / s的最大采样率,并且结构的总占地面积约为924μm〜2。

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