High power quantum-well gain-coupled (GC) DFB lasers at 1.3 /spl mu/m and 1.55 /spl mu/m

Summary form only given. High power characteristics of InGaAsP quantum-well gain-coupled DFB lasers with a loss grating are presented. Among these are record single-mode (SM) values of 115 mW at 1.3 /spl mu/m and 95 mW at 1.55 /spl mu/m. The SM-yield at 20 mW is as high as 66%.