Photonic machine learning based signal recovery in self-coherent detectors Interuniversity Microelectronics Centre
A computer-implemented method of training a self-coherent detector module (200) to recover distorted optical transmission signals, and processing devices adapted to perform the method are disclosed. The detector module comprises an optical filter unit (210), a detection unit (221) for detecting an amplitude component of an optical input, and digital signal processing circuitry (230) configured to retrieve a phase component of the optical input from the amplitude component. The method comprises iteratively computing updates (104) of adjustable filter coefficients of the filter unit, based on a ...