Selectively oxidized vertical cavity lasers emitting at about 1290 nm
using InGaAsN quantum wells that operate continuous wave below, at and above room
temperature are reported. The lasers employ a semi-insulating GaAs substrate for
reduced capacitance, high quality, low resistivity AlGaAs DBR mirror structures,
and a strained active region based on InGaAsN. In addition, the design of the VCSEL
reduces free carrier absorption of 1.3 m light in the p-type materials by
placing relatively higher p-type dopant concentrations near standing wave nulls.