Summary
Optical networks send internet data through light over fiber cables. Sending very fast signals usually requires complicated electronics at the receiving end. This paper shows a way to design the transmitter using information from the receiver so that the receiver's electronics can be much simpler or even eliminated. This reduces cost and power consumption while keeping fast speeds over long distances. The authors demonstrate this idea works well for a 200 Gb/s network reaching 40 kilometers.
What this means in practice
- •For network operators: Implement 200 Gb/s passive optical networks with reduced complexity at customer devices for longer distance coverage and cost savings.
- •For hardware engineers: Design transmitters that compensate for receiver limitations to enable simpler optical network units without forward error correction.
Authors
Safiya Dabwan, Geraldo Gomes, Stylianos Sygletos
Abstract
We introduce and numerically demonstrate receiver-informed transmitter (RITX) waveform design for 200 Gb/s PAM-4 C-band direct-detection PON. Using 50 GHz optoelectronics, RITX achieves N1/E1 loss classes with FFE-Free ONU, enabling 40 km reach and 48.1%/66.7% network-wide complexity savings at 1:64/1:128 splits