Advanced solid state lasers: feature issue introduction

This joint issue of Optics Express and the Journal of the Optica Society of America B (JOSA B) features 61 peer-reviewed articles, many of which are contributed by authors who participated in the International Conference of Advanced Solid State Lasers, held in Osaka, Japan, from October 20 to 24, 2024. This introduction provides a concise overview of the featured articles, which highlight recent advances in laser science, ultrafast optics, and nonlinear optics. The collection covers a broad range of topics in solid-state lasers, from material development to laser source engineering, and from design of innovations to their emerging applications. Together, these contributions reflect the dynamic developments in both fundamental research and applied photonics technologies.