PAM-4 Signaling over VCSELs with 0.13microm CMOS Chip Technology.
We present results for VCSEL based links operating PAM-4 signaling using a commercial 0.13microm CMOS technology. We perform a complete link analysis of the Bit Error Rate, Q factor, random and deterministic jitter by measuring waterfall curves versus margins in time and amplitude. We demonstrate that VCSEL based PAM-4 can match or even improve performance over binary signaling under conditions of a bandwidth limited, 100meter multi-mode optical link at 5Gbps. We present the first sensitivity measurements for optical PAM-4 and compare it with binary signaling. Measured benefits are reconciled with information theory predictions.
Cunningham
J E
JE
Beckman
D
D
Zheng
Xuezhe
X
Huang
Dawei
D
Sze
T
T
Krishnamoorthy
A V
AV