MZM Optimization of PAM-4 Transmission in Data Center Interconnect
APPLIED SCIENCES-BASEL（2019）
摘要
An analog optimization of 4-level pulse amplitude modulation (PAM-4) signal is proposed, together with maximum likelihood sequence estimation digital signal processing. The proposed optimizations are verified by experimental demonstration at 53 Gbaud, indicating an improvement of 4-5 dB in the optical signal to noise sensitivity.
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关键词
fiber optic communication,modulation format,digital signal processing (DSP),PAM-4
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