Coexistence Options and Performance Analysis of 100 Gbit/s Coherent PON in Brownfield DWDM Networks

TL;DR

This paper analyzes coexistence strategies for 100 Gbit/s coherent PON and DWDM networks in existing infrastructure, focusing on system architecture and filtering performance.

Contribution

It proposes a cost-effective architecture for coexistence with minimal filtering penalties in brownfield DWDM networks.

Findings

Filtering penalties are less than 1dB at laser frequency accuracy below 12GHz.

The architecture enables coexistence with minimal performance degradation.

Cost-effective solutions are feasible for future high-speed optical networks.

Abstract

We study system architectures for the coexistence of future coherent PON and DWDM networks. Considering deployed optical filters, we observe filtering penalties < 1dB at a laser frequency accuracy < 12GHz when using a cost-effective architecture.