10 Gb/s operation of 1.3 /spl mu/m uncooled ridge-waveguide Be-doped DFB laser

We report 10 Gb/s direct modulation of 1.3 /spl mu/m-uncooled DFB. The lasers were optimized for 0 to 80/spl deg/C operation. Output power of 35 mW is reported at 25/spl deg/C for 100 mA. 8 GHz bandwidth was measured for entire temperature range.