Ohmic heating and series resistance of a vertical-microcavity surface-emitting laser

Abstract
We report the results of investigations on the transient heating and series resistance of a vertical-microcavity surface-emitting (VMSE) laser with an air-bridge structure. Transient temperature broadening of the lasing spectrum and chirping of the current versus voltage characteristic are analyzed experimentally and theoretically. We believe that the experiments provide us valuable information on the severity of the heating problems in VMSE laser.