Phase fluctuation of self-phase-controlled stimulated Brillouin scattering waves via K8 glass

摘要: Abstract As stimulated Brillouin scattering (SBS) materials, solids have many advantages such as compactness, innoxiousness, and ease of handling. The SBS threshold reflectivity K8 glass, a solid material, are investigated. A phase control experiment using glass to achieve coherent beam combination is performed with self-phase-control technique below the optical damage threshold. experimental results show that short-term has been stabilized well λ/33.8 fluctuation during 256 shots (25.6 s), long-term change non-convective much slower than convective HT-70 liquid.