Packet Timescale Wavelength Switching Enabled by Regression Optimisation
Packet Timescale Wavelength Switching Enabled by Regression Optimisation
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DOI：
10.1109/lpt.2020.2980746
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发表时间：
2020-04-15
影响因子：
2.6
通讯作者：
Bayvel, Polina
中科院分区：
文献类型：
--
作者：
Gerard, Thomas;Dzieciol, Hubert;Bayvel, Polina
一个线性回归算法应用于数字超模分布式布拉格反射器激光器，以优化波长切换时间。该算法使用数字相干接收机的输出作为反馈来更新应用于激光器部分电流的预加重权重。这允许现场计算而无需手动调整重量。该优化器在一个代表性的通道分段中的应用表明，这种商用激光器可以在不到10 ns的时间内快速重新配置超过6.05 THz，支持122个通道。
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.