Fig. 4: Experimental demonstration of an IMDD with a single PD. | Light: Science & Applications

Fig. 4: Experimental demonstration of an IMDD with a single PD.

From: A 3.584 Tbps coherent receiver chip on InP-LiNbO3 wafer-level integration platform

Fig. 4

a Experimental setup for the IMDD, ECL: external cavity laser, PC: polarization controller, AWG: arbitrary waveform generator, MZM: Mach–Zehnder modulator, EDFA: erbium-doped fiber amplifier, RTO: real-time oscilloscope. b–e Eye diagrams and corresponding BERs of 50 Gbaud (b), 60 Gbaud (c), 80 Gbaud (d), and 100 Gbaud (e) PAM4 signals in B2B transmission. f Measured BERs versus the received optical power for the reception of the 100 Gbaud PAM4 signal. SD-FEC: soft-decision forward error correction. HD-FEC hard-decision forward error correction

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