Demonstration of 100 Gbps Per Lambda PAM4 Transmission with 1310 nm and 1330 nm Directly Modulated Lasers

100Gbps per lambda PAM4 transmission with 1310 nm and 1330 nm directly modulated lasers is demonstrated. Dispersion penalty after transmission through 2km SMF is less than 1 dB measured in TDECQ or receiver sensitivity change.