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Packet Timescale Wavelength Switching Enabled by Regression Optimisation

Gerard, T; Dzieciol, H; Benjamin, J; Clark, K; Williams, H; Thomsen, B; Lavery, D; (2020) Packet Timescale Wavelength Switching Enabled by Regression Optimisation. IEEE Photonics Technology Letters , 32 (8) pp. 477-480. 10.1109/LPT.2020.2980746. Green open access

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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.

Type: Article
Title: Packet Timescale Wavelength Switching Enabled by Regression Optimisation
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/LPT.2020.2980746
Publisher version: https://doi.org/10.1109/LPT.2020.2980746
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10093295
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