Improved Adaptive Digital Back Propagation Algorithm Based On Adam Algorithm For Fiber Nonlinear Compensation

In this paper, an Adam-DBP algorithm is proposed for the digital signal processing part of the optical receiver. The algorithm is based on the DBP algorithm, with the addition of the Adam algorithm so that it has the ability to adaptively compensate for the signal, overcoming the shortcomings of the traditional DBP algorithm with poor flexibility, and compared with other optimization algorithms, it has a faster iteration speed and reduces the complexity of the system.