Solid state dye lasers emitting in the range 540-615 nm were prepared
by incorporating perylimide and pyrromethene dyes into glasses prepare
d by a biphase process and by a one step process. A number of various
glass compositions were tested and their efficiencies were measured. T
he optimal efficiency for the lasers pumped transversally approaches 3
0%. (C) 1997 Elsevier Science B.V.