Room-temperature continuous-wave operation of a GaInP/AlGaInP multiquantum well laser grown by metalorganic chemical vapor deposition

Abstract
Room‐temperature continuous‐wave (cw) operation of a GaInP/AlGaInP multiquantum well (MQW) laser was achieved for the first time. The threshold current was 70 mA at 22 °C for a device with an 8‐μm‐wide and a 250‐μm‐long planar stripe. The emission wavelength was 668 nm. The characteristic temperature T0 was 138 K under cw operation. The wafer with the MQW structure composed of 100‐Å‐thick GaInP wells and 40‐Å‐thick AlGaInP barrier layers was grown by atmospheric pressure metalorganic chemical vapor deposition.