Slab lasers offer advantages over rod lasers when higher output power is required.
However, these advantages are realized only with careful engineering. In this
paper some important design considerations needed to obtain high performance from
slab lasers are reviewed.
Josef R. Unternahrer,
"Slab lasers: concept and implementation", Proc. SPIE 1277, High-Power Solid State Lasers and Applications, (1 August 1990); doi: 10.1117/12.20572; https://doi.org/10.1117/12.20572