LUT-Assisted Clock Data Recovery and Equalization for Burst-Mode 50-100 Gbit/s Bandwidth-Limited Flexible PON

TL;DR

This paper presents a LUT-assisted clock data recovery and equalization technique for high-speed burst-mode PON systems, enabling robust signal recovery with minimal sensitivity penalty under large frequency offsets and phase mismatches.

Contribution

It introduces a LUT-assisted approach for CDR and equalization that effectively handles large frequency offsets and phase mismatches in burst-mode PON at 50-100 Gbit/s.

Findings

Achieved robust signal recovery with 0.3dB sensitivity penalty

Successfully handled 100 ppm frequency offsets and 0.5 UI phase mismatch

Utilized reduced 50ns preambles for efficient operation

Abstract

We demonstrated LUT-assisted CDR and equalization for burst-mode 50-100 Gbit/s bandwidth-limited PON, achieving signal recovery under large 100 ppm frequency offsets and 0.5 UI phase mismatch using reduced 50ns preambles, with 0.3dB sensitivity penalty only.