| Abstract [eng] |
This dissertation investigates microchip lasers incorporating meta-mirror structures for spatial and polarization filtering. The main objective is to improve key output parameters, including brightness, beam quality factor (M²), and polarization contrast. Experimental results demonstrate enhancement of brightness and beam quality using angularly selective meta- mirrors, as well as improved polarization control and increased polarization contrast ratio at high pump powers. A practical theoretical model based on two-dimensional linear field equation is developed to describe the evolution of the beam quality factor M² in multi-mode operation. Numerical simulations support the experimental findings and confirm the general applicability of the proposed approach. The results indicate that meta-mirror-based microchip lasers are a promising solution for compact, high-brightness laser sources in applications such as industry, medicine, sensing and others. |
