Error-Free 100Gbps PAM-4 Transmission over 100m Wideband Fiber using 850nm VCSELs

We experimentally demonstrate error-free rates beyond 100Gbps over 100m WBMMF. Power penalties and maximum data rates of PAM-2 and PAM-4 using shaped and unshaped pulses were studied. The link includes unpackaged 850nm VCSELs with different apertures and only transmitter equalization.