An All-Silicon 4x56 Gbit/s NRZ, 1pJ/bit Optical Receiver with Ge-on-Si PDs and 28nm CMOS TIA Array

Govaerts, BrunoBrunoGovaertsWang, XinXinWangBomhals, AxlAxlBomhalsDeclercq, JakobJakobDeclercqKarmakar, ArijitArijitKarmakarVan Steenberge, GeertGeertVan SteenbergeMissinne, JeroenJeroenMissinneBruynsteen, CedricCedricBruynsteenSingh, NishantNishantSinghTorfs, GuyGuyTorfsBauwelinck, JohanJohanBauwelinckYin, XinXinYinOssieur, PeterPeterOssieur2026-06-012026-06-012025979-8-3315-9532-6nahttps://imec-publications.be/handle/20.500.12860/59497We demonstrate a low-power (1 pJ/bit), C-band 4x56 Gbit/s NRZ optical receiver constructed from a 28nm CMOS transimpedance amplifier and a Silicon PIC containing a Ge photodetector array. The receiver showcases low-complexity, and low-latency performance for use with one-hop optical switching in optical IO applications.engAn All-Silicon 4x56 Gbit/s NRZ, 1pJ/bit Optical Receiver with Ge-on-Si PDs and 28nm CMOS TIA ArrayProceedings paper10.1109/ecoc66593.2025.11263110WOS:001680185000188