Current Dependence of Junction Temperature in C-W Operated GaAs Laser Diodes

Abstract

In a c-w operated laser diode, the junction temperature depends critically upon current because of the generation of heat. Current dependence of the junction temperature in GaAs laser diodes which were mounted on an excellent heat sink examined at the case temperature of 77°K. An appoximate steady-state equation of the heat flow was derived by taking into account of the temperature dependence of the heat conductivity of GaAs in order to explain the experimental result, and a fairly good agreement with the experimental was obtained.