Many of the characteristics of solid-state lasers depend to a large extent upon the quality of the individual laser rod and its optical properties in the presence of pumping raidation. This paper su-marizes the input-output properties of typical neodium-YAG rods used in (moderate power, tungsten-pumped, continuous lasers operating at 1.0641 nicrons and 1.32 microns. A sinple method of determining the optimum reflectivity of the output mirror is described, and output-versus-reflectivity curves are given for a number of laser rods. Several features of the spectrum, polarization, and mode structure of the laser are related to the optical properties of the pumped laser rod.
John E. Gallagher,
"Properties Of Tungsten-Pumped Continuous ND:YAG Lasers", Proc. SPIE 0020, Developments in Laser Technology I, (17 May 1969); doi: 10.1117/12.946861; https://doi.org/10.1117/12.946861