Abstract

53-Gbaud EA-DFB lasers—with four wavelengths in the 1500-nm region—for 800-GbE applications were developed. They demonstrated uncooled 53-Gbaud PAM4 operation with a TDECQ of lower than 2.5 dB over a wide temperature from 20 to 85°C.

© 2020 The Author(s)

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