[ThC3] Advanced Direct Detection

[ThC3-3] 140-GBaud PAM-4 Transmission Using Optical Band Interleaving, Kramers–Kronig Detection and Volterra Based Equalization

〇Xiong Wu², Junwei Zhang³, Changjian Guo^1,2, Jie Liu³, Tao Gui², Alan Pak Tao Lau², Chao Lu² (¹South China Normal Univ., China, ²The Hong Kong Polytechnic Univ., Hong Kong, ³Sun Yat-Sen Univ., China)

Keywords:Transmission and Propagation, Digital signal processing techniques for optical communications

We experimentally demonstrate the generation and 80-km transmission of up to 140-GBaud PAM-4 signals using an optical band interleaving technique and Kramers–Kronig detection, with a transmitter bandwidth of only 32-GHz.