Abstract

InGaAdP/InP lasers have been considered promising light sources for fiber-optic communication systems. Recent reliability studies^1-5 have shown that these lasers have strong resistance to degradation modes such as DLDs,⁶ facet damage,⁶ and self-pulsations⁶ often observed in (AlGa)As/GaAs lasers. However, not much data on accelerated aging of InGaAsP/InP lasers have been reported, and their ultimate lifetimes are unknown. The strong temperature dependence of the threshold current of InGaAsP/InP lasers is a major obstacle in obtaining the activation energy from the temperature dependence of degradation.⁵

© 1981 Optical Society of America