Highly reliable 1.55 µm GaInAsP laser diodes buried with semi-insulating iron-doped InP

Abstract
Highly reliable 1.55 µm GaInAsP/InP laser diodes buried with semi-insulating iron-doped InP are presented that operate stably for more than 5000 h with a degradation ratio of less than 5 × 10-6/h. The lifetime at 50°C is estimated to be more than 105 h.