GPU-Accelerated Optimisation of Symmetric Bidirectional Ultrawideband Coherent Transmission Under Launch Power Constraints

Mindaugas Jarmolovičius; Eric Sillekens; Polina Bayvel; Robert I. Killey

GPU-Accelerated Optimisation of Symmetric Bidirectional Ultrawideband Coherent Transmission Under Launch Power Constraints

Signal Processing 2026-07-14 v1

Authors: Mindaugas Jarmolovičius , Eric Sillekens , Polina Bayvel , Robert I. Killey

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%

Keywords

coherent transmission bidirectional ultrawideband Raman amplification power optimization GPU acceleration

Cite

@article{arxiv.2607.12921,
  title  = {GPU-Accelerated Optimisation of Symmetric Bidirectional Ultrawideband Coherent Transmission Under Launch Power Constraints},
  author = {Mindaugas Jarmolovičius and Eric Sillekens and Polina Bayvel and Robert I. Killey},
  journal= {arXiv preprint arXiv:2607.12921},
  year   = {2026}
}

Comments

Submitted to European Conference on Optical Communication (ECOC) 2026