2 mW single mode operation of 1.55 /spl mu/m InAlGaAs/InP-AlGaAs/GaAs wafer fused tunable VCSELs optically pumped with 980 nm lasers

1.5 /spl mu/m InAlGaAs/AlGaAs wafer fused tunable VCSELs with a maximum 2 mW of CW output power at room temperature are demonstrated. A 30 nm of continuous tuning range is achieved by application of less than 4 V between the top and bottom mirrors. Side mode suppression ratio in excess of 30 dB is characteristic for these devices.