Single channel 112Gbit/sec PAM4 at 56Gbaud with digital signal processing for data centers applications

Opt Express. 2015 Jan 26;23(2):991-7. doi: 10.1364/OE.23.000991.

Abstract

112Gbit/sec DSP-based single channel transmission of PAM4 at 56Gbaud over 15GHz of effective analog bandwidth is experimentally demonstrated. The DSP enables use of mature 25G optoelectronics for 2-10km datacenter intra-connections, and 8Tbit/sec over 80km interconnections between data centers.