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Sep 24 – 25, 2025
LITEXPO
Europe/Vilnius timezone

Analyzing network reliability up to 800G - Impact of SNR thresholds on BER for Coherent (16QAM) and Non-Coherent (PAM4) high speed transceivers under environmental variations

Sep 24, 2025, 12:00 PM
30m
5.1 - Litexpo (Litexpo)

5.1 - Litexpo

Litexpo

500
Talks Network Automation and AI in Networking Day 1: Session 2

Speaker

Thomas Weible (FLEXOPTIX)

Description

This presentation investigates the proximity to a low Signal-to-Noise Ratio (SNR) threshold that can still maintain a tolerable Bit Error Rate (BER) in 100G / 400G / 800G network links. Additionally, we account for factors such as temperature and cable length to predict the duration for which a reliable network connection can be sustained between transceivers. The analysis, based on data retrieved using a Flexbox, focuses on comparing the reliability of coherent (16QAM) and non-coherent (PAM4) transceivers, with a detailed discussion on the implications of these technologies on network performance.
Made by FLEXOPTIX Research - Gerhard and Thomas.

Primary authors

Gerhard Stein (FLEXOPTIX) Thomas Weible (FLEXOPTIX)

Presentation materials