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arXiv · 2002.11640

Packet Timescale Wavelength Switching Enabled by Regression Optimisation

Thomas Gerard·Hubert Dzieciol·Joshua Benjamin·Kari Clark·Hugh Williams·Benn Thomsen·Domaniç Lavery·Polina Bayvel
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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.

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Thomas Gerard, Hubert Dzieciol, Joshua Benjamin, Kari Clark, Hugh Williams, Benn Thomsen, Domaniç Lavery, Polina Bayvel. 2020-02-24. Packet Timescale Wavelength Switching Enabled by Regression Optimisation. https://doi.org/10.1109/lpt.2020.2980746

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