The high demand for 1.3-1.55 mum lasers has led to the investigation of GaInNAsSb/GaNAsSb on GaAs. In-plane lasers operating out to 1.49 mum, with threshold current density of 930 A/cm(2) per quantum well and pulsed power up to 70 mW are presented. In addition, photoluminescence out to 1.6 mum from GaInNAsSb quantum wells was observed.