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Photonic sampled and quantized analog-to-digital converters on thin-film lithium niobate platform

Authors :
Donghe Tu
Xingrui Huang
Hang Yu
Yuxiang Yin
Zhiguo Yu
Zhongming Wei
Zhiyong Li
Publication Year :
2022

Abstract

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 5×5 multimode interference (MMI) coupler as a quantizer, a 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. The demonstrated device is capable of operating at a high frequency over 67 GHz, making it a promising solution for on-chip ultra-high speed analog-to-digital conversion.

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....37dae8b6ba1c7ac09ad581f2fd3323bc