GPU-Accelerated Optimisation of Symmetric Bidirectional Ultrawideband Coherent Transmission Under Launch Power Constraints
arXiv:2607.12921
summary
The paper presents a GPU‑accelerated optimisation framework for bidirectional ultrawideband coherent transmission under total fibre launch‑power constraints, demonstrating up to a 24.5% increase in aggregate capacity for a 3‑span system when the O‑band direction is reversed.
Abstract
We optimise bidirectional OESCL-band coherent transmission under total fibre power constraints using a GPU-accelerated boundary-value Raman solver and launch-power optimisation. While no gain is observed without power constraints, for an 18-dBm limit 3-span transmission reversing the O-band direction increases aggregate capacity by up to 24.5%
Submitted to European Conference on Optical Communication (ECOC) 2026
Topics & keywords
#coherent transmission#bidirectional communication#ultrawideband#launch power optimization#gpu accelerationRaman solverboundary‑value problemOESCL‑bandaggregate capacitypower constraints