Photonic Time-Stretched Analog-to-Digital Converter System Based on Complementary Dual Mach-Zehnder Modulator Structure

Junda, 王俊达 Wang; Ying, 陈颖 Chen; Xiangning, 陈向宁 Chen

doi:10.3788/cjl201744.1206001

中国激光

2017

DOI: 10.3788/cjl201744.1206001

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Photonic Time-Stretched Analog-to-Digital Converter System Based on Complementary Dual Mach-Zehnder Modulator Structure

王俊达 Wang Junda¹,

陈颖 Chen Ying²,

陈向宁 Chen Xiangning³

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2023

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High-speed ADC based on photonic time-stretched technology with dispersion-tunable CFBG

Li¹,

Xiao²,

Liu³

et al. 2023

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We propose a photonic time-stretched analog-to-digital converter (PTS-ADC) based on dispersion-tunable chirped fiber Bragg grating (CFBG), by demonstrating a economical ADC system with seven different stretch factors. The stretch factors are tunable by changing the dispersion of CFBG, in order to obtain different sampling points. Accordingly, the total sampling rate of the system can be improved. Only a single channel is required to increase the sampling rate and achieve the effect of multi-channel sampling. Finally, seven groups of different stretch factors ranging from 1.882 to 2.206 are obtained, which are equivalent to seven groups of different sampling points. We successfully recover the input radio frequency (RF) signals with frequencies from 2 GHz to 10 GHz. In addition, the sampling points are increased by 14.4 times and the equivalent sampling rate is increased to 288 GSa/s. The proposed scheme is suitable for commercial microwave radar systems, which can obtain a much higher sampling rate at a low cost.

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High-speed ADC based on photonic time-stretched technology with dispersion-tunable CFBG

Li¹,

Xiao²,

Liu³

et al. 2023

Opt. Express

View full text Add to dashboard Cite

show abstract

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Photonic Time-Stretched Analog-to-Digital Converter System Based on Complementary Dual Mach-Zehnder Modulator Structure

Cited by 1 publication

References 0 publications

High-speed ADC based on photonic time-stretched technology with dispersion-tunable CFBG

High-speed ADC based on photonic time-stretched technology with dispersion-tunable CFBG

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