Properties of stripe geometry double-heterostructure junction lasers operating continuously at and above room temperature

Low-threshold double-heterostructure junction lasers have recently been operated continuously at room temperature. In this paper, we describe several properties of the stripe geometry double-heterostructure laser configuration. Because of the superior thermal properties of the stripe geometry, room-temperature continuous operation is achieved even when current thresholds are nearly an order of magnitude larger than those reported in Ref. (1). Continuous operation up to 355°K has been obtained. Under pulsed conditions, these lasers have been operated as high as 500°K with less than an order of magnitude increase in threshold over the room-temperature value.