Evaluation of Some Parameters in Ruby Laser Rods

Abstract

Some Parameters of a laser crystal are estimated simultaneously from a laser ray 2-wavelengths method using perpendicularly polarized probe lights at wavelength of ruby laser (694nm) and auxiliary He-Ne gas laser (633nm). This method is actually applied to some ruby laser rods, and the next parameters are determined. Those are absorption coefficient α_o for ordinary ray at 694nm, that α_e for extraordinary ray, Ioss coefficients γ_o, γ_e, and normalized populationin version η. They are useful in analyzing the behavior of ruby laser amplifier by rate equations.