We report on an experimental verification of a phenomenological model
describing high-power and high-temperature operation of a compressivel
y strained, InGaAsP multiple quantum well ridge-waveguide laser. The m
odel, based on an assumption that mainly crystal heating defines optic
al output power saturation, has been proved to adequately describe the
experimental results on maximum operating temperature of the lasers.
(C) 1998 American Institute of Physics. [S0021-8979(98)01920-3].