For a high-power slab solid-state laser, obtaining high output power and beam quality are the most important indicators. Adaptive optics systems can significantly improve qualities by compensating for phase distortions of laser beams. In this paper, we developed an improved algorithm called Gradient Estimation Stochastic Parallel Descent (AGESPGD) cleanup laser. A second-order gradient search p...

The Cadzow’s algorithm is a signal denoising and recovery method which was designed for signals corresponding to low rank Hankel matrices. In this paper we first introduce Fast developed by incorporating novel subspace projection reduce the high computational cost of SVD in algorithm. Then Gradient are proposed address non-decreasing MSE issue when applying or denoising. Extensive empirical per...

This work addresses the resolution of penalized least-squares problems using proximal gradient algorithm (PGA). PGA can be accelerated by preconditioning strategies. However, typical effective choices preconditioners may correspond to intricate matrices that are not easily inverted, leading increased complexity in computation proximity step. To relax these requirements, we propose an unmatched ...