Three new laser lines are reported: Two lines, at 1.0448 and 1.0661 &mgr;, occur for a CaF2crystal which is heavily doped with NdF3; a line at 1.0336 &mgr; occurs for a CaF2crystal containing NdF3and YbF3. Details of the absorption and fluorescence spectra indicate that the laser oscillations arise from Nd3+ions at noncubic sites in the first crystal and from Yb3+ions in the second crystal. The growth techniques are summarized; the special growth procedures minimize the oxygen content, thereby reducing the number of impurities in sites for Nd3+and Yb3+.