A. Valster et al., STRAIN-OVERCOMPENSATED GAINP-ALGAINP QUANTUM-WELL LASER STRUCTURES FOR IMPROVED RELIABILITY AT HIGH-OUTPUT POWERS, IEEE journal of selected topics in quantum electronics, 3(2), 1997, pp. 180-187
Strain-overcompensated multiple-quantum-well (MQW) laser structures ha
ve been analyzed theoretically as well as experimentally far the first
time, Strain overcompensation reduces the bandgap shrinkage that norm
ally takes place at the facets of compressively strained layers becaus
e of strain relaxation. This results in a lower absorption of the lase
r spot leading to a remarkable improvement of the reliability of high-
power Baser diodes.