Dz. Garbuzov et al., 4 W QUASI-CONTINUOUS-WAVE OUTPUT POWER FROM 2 MU-M ALGAASSB INGAASSB SINGLE-QUANTUM-WELL BROADENED WAVE-GUIDE LASER-DIODES/, Applied physics letters, 70(22), 1997, pp. 2931-2933
AlGaAsSb/InGaAsSb single-quantum-well (SQW) laser diodes emitting at 2
mu m were fabricated and tested. At 10-15 degrees C, the uncoated SQW
lasers with 2-3 mm cavity lengths exhibit a threshold current density
of 115 A/cm(2), a continuous-wave output power of 1.9 W, a differenti
al efficiency of 53%, and a quasi-continuous-wave output power of 4 W.
Their performance deteriorates rapidly as output losses increase beyo
nd 10 cm(-1). (C) 1997 American Institute of Physics.