Uploaded June 2025 | Updated September 2026, 1 week ago
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.
Gerhard Stein: Back in the 1990s he wrote small programs and assembled computers and network systems for customers. Then he began studying mechanical and process engineering at the TU Darmstadt, continued this at the Ruhr University Bochum, specialising computational engineering and received his doctorate in the field of simulation technology. He also develops open source software such as the Commander Genius game engine.
Speakers
Thomas Weible - Co-founder and CTO of Flexoptix GmbH
Gerhard Stein - Lead Research Engineer
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.
Gerhard Stein: Back in the 1990s he wrote small programs and assembled computers and network systems for customers. Then he began studying mechanical and process engineering at the TU Darmstadt, continued this at the Ruhr University Bochum, specialising computational engineering and received his doctorate in the field of simulation technology. He also develops open source software such as the Commander Genius game engine.
Speakers
Thomas Weible - Co-founder and CTO of Flexoptix GmbH
Gerhard Stein - Lead Research Engineer
