Impact of Dispersion Slope on High-Symbol-Rate Coherent Transceivers
Year: 2025
Type: article
Abstract: Next generation coherent transceivers are expected to offer capacities of 1600 Gbps per wavelength λ, potentially requiring single-carrier symbol rates of 240 GBd or more. The analysis of higher order physical layer effects at these elevated symbol rates gains relevance in terms of performance and complexity. In this work, we investigate by simulations the impact of second order group velocity dispersion (SO-GVD) for high symbol rate coherent transceivers. We experimentally emulated a 160 GBd transmission of up to 70.8 ps/nm2of accumulated SO-GVD. An approximation for the memory length of a SO-GVD compensation filter is presented. We show that compensating for SO-GVD within a static frequency domain chromatic dispersion compensator (CDC) leads to a reduction in operational complexity.
Authors: Juan L. Moreno Morrone, Laurenz Ebner, Robert Emmerich, Ogulcan Erdogan, Carsten Schmidt-Langhorst, Colja Schubert, Johannes K. Fischer, Ronald Freund
Language: English
Topic: Optical Network Technologies
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,645
Award: G1483557908
OpenAlex ID: W7092177724
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