Up to 600 Gbit/s data transmission over 100 m of single multi-mode fiber using 4×λ 850–940 nm VCSELs

We demonstrate parallel high speed data transmission over single multimode fiber using VCSELs operating in the SWDM wavelength range (850 nm – 940 nm). Total demonstrated throughput of such system reaches 500 Gbit/s with 4-PAM modulation and 600 Gbit/s with DMT modulation.