Compensation of Multi-Channel Mismatches in OADC Based on MMI-Based Phase-Shift Quantization

Yiding Zhao,Jifang Qiu,Bowen Zhang,Yan Li,Jian Wu

2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM)（2023）

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摘要

We apply a blind compensation method to OADC. Simulation results show that timing mismatches are suppressed from -50.58dB to below -66.31dB. Compensation method improves system ENOB and SFDR at 1~49 GHz input frequency.

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关键词

Optical analog-to-digital converter,multi-channel timing mismatch,ENOB,background compensation

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