Abstract

Laser diodes operating at wavelengths around 2µm are useful for applications such as molecular spectroscopy, "eye safe" communication sources, and pumps for the Ho-YAG solid-state laser system. Lasers with structures containing a GalnAsSb active region and AlGaAsSb confining layers have shown good performance in the 1.8–2.5µm wavelength domain.^1-3 In this communication we present double heterostructure (DH) lasers operating at temperatures up to T_max = 130°C, which is the highest maximum temperature reported to date for conventional DH lasers emitting at more than 2 µm.

© 1994 IEEE