We evaluated the optical properties required for the design of a solar-pumped laser for ${\mathrm{Nd}}^{3+}$ -doped ${\mathrm{ZrF}}_4\text{-}{\mathrm{BaF}}_2\text{-}{\mathrm{LaF}}_3\text{-}{\mathrm{AlF}}_3\text{-}\mathrm{NaF}$ (ZBLAN) glass. The quantum efficiency (QE) of near-infrared emission from the ${}^4{F}_{3/2}$ state of ${\mathrm{Nd}}^{3+}$ using sunlight as an excitation source was 70%. The product of the stimulated emission cross section and the radiative lifetime ( ${\sigma }_{\text{se}}{\tau }_r$ ) of the ${}^4{F}_{3/2}\to {}^4{I}_{11/2}$ was $1.5\times {10}^{-23}{\mathrm{cm}}^2·\mathrm{s}$ . The integrated absorption strength in the $450–900\mathrm{nm}$ region was the largest among ${\mathrm{Nd}}^{3+}$ -doped fluoride glasses. The high QE, large ${\sigma }_{\text{se}}{\tau }_r$ product, and large integrated absorption strength indicate that ${\mathrm{Nd}}^{3+}$ -doped ZBLAN is one of the most promising materials for solar-pumped lasers.