Power scaling of solid state lasers over 100 W with fiber phase conjugators

Abstract

The beam quality of high average power solid-state lasers can be significantly improved using phase conjugation based on stimulated Brillouin scattering (SBS) [1] in cells with a simple focusing geometry. The relatively high SBS threshold of several 10 kW in such cells, however, limits applications e.g. in continuously pumped laser systems. The SBS-materials used up to now are toxic liquids or gases under high pressure.