Fast QoT Estimation Based on Probability Density Calculation of Electric Field Waveform

For dynamic optical path provisioning in optical networks, real-time path design based on fast quality-of-transmission (QoT) estimation is highly desirable. We propose an electric field feature propagation based QoT estimation technique using a new feature extraction method. The proposed feature extraction method can reduce the calculation load by a factor of 10000 compared with the conventional approach, enabling comprehensive datasets for various networks to be created in realistic time. This study confirms that the proposed QoT estimation method can accurately estimate the bit error rate (BER) for different combinations of input power, span length, and received optical power.