We propose for the first time a two-dimensional phase-frequency jointly quantizing method for cost-effective all-optical analog-to-digital conversion (ADC), both on power consumption and structure complexity. By fully harnessing the power-dependent phase and frequency shift of the probe and pump light, respectively, that simultaneously occurs during the cross-phase modulation process, the method is studied with an on-chip interferometer structure based on nonlinear silicon-organic hybrid slot waveguide. Simulation results show the 4-bit quantization resolution is achieved by using only one interferometer, where N interferometers should be used in the conventional methods with resolution of N -bit. The proposed method provides an efficient optical quantization technique for all-optical ADC, also opens a new mind for exploring advanced all-optical ADC techniques using multi-dimensional degrees of freedom of light.

中文翻译：

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用于高性价比全光模数转换的相频联合量化方法

我们首次提出了一种二维相频联合量化方法，用于具有成本效益的全光模数转换（ADC），无论是功耗还是结构复杂性。通过充分利用在交叉相位调制过程中同时发生的探测光和泵浦光的功率相关相位和频移，研究了基于非线性硅有机混合槽的片上干涉仪结构的方法波导。仿真结果表明，仅使用一个干涉仪就可以实现4位量化分辨率，其中N位分辨率的常规方法应使用N个干涉仪。所提出的方法为全光ADC提供了一种有效的光量化技术，