Packet Timescale Wavelength Switching Enabled by Regression Optimisation
Signal Processing
2020-04-22 v2
Abstract
A linear regression algorithm is applied to a digital-supermode distributed Bragg reflector laser to optimise wavelength switching times. The algorithm uses the output of a digital coherent receiver as feedback to update the pre-emphasis weights applied to the laser section currents. This permits in-situ calculation without manual weight adjustments. The application of this optimiser to a representative subsection of channels indicates this commercially available laser can rapidly reconfigure over 6.05 THz, supporting 122 channels, in less than 10 ns.
Cite
@article{arxiv.2002.11640,
title = {Packet Timescale Wavelength Switching Enabled by Regression Optimisation},
author = {Thomas Gerard and Hubert Dzieciol and Joshua Benjamin and Kari Clark and Hugh Williams and Benn Thomsen and Domaniç Lavery and Polina Bayvel},
journal= {arXiv preprint arXiv:2002.11640},
year = {2020}
}
Comments
4 pages, 9 figures, one algorithm, Letter