论文标题
光子采样并量化薄膜锂锂平台上的类似于数字转换器
Photonic sampled and quantized analog-to-digital converters on thin-film lithium niobate platform
论文作者
论文摘要
在本文中，通过实验证明了薄膜锂锂锂平台上的片上光子采样和量化类似物对数字转换器（ADC）。使用两个相调节器作为采样器和5 $ \ times $ 5多模具干扰（MMI）耦合器作为量化器，以20 Gsample/s采样率成功地将1 GHz正弦模拟输入信号成功转换为数字化输出。为了评估系统性能，测量了量化曲线以及ADC的传递函数。实验有效数量的位（ENOB）为3.17位。所展示的设备能够以高达70 GHz的高频运行，这使其成为芯片超高速度类似于数字转换的有前途的解决方案。
In this paper, an on-chip photonic sampled and quantized analog-to-digital converter (ADC) on thin-film lithium niobate platform is experimentally demonstrated. Using two phase modulators as a sampler and a 5$\times$5 multimode interference (MMI) coupler as a quantizer, an 1 GHz sinusoidal analog input signal was successfully converted to a digitized output with a 20 GSample/s sampling rate. To evaluate the system performance, the quantization curves together with the transfer function of the ADC were measured. The experimental effective number of bits (ENOB) was 3.17 bit. The demonstrated device is capable of operating at a high frequency up to 70 GHz, making it a promising solution for on-chip ultra-high speed analog-to-digital conversion.
