M. Szymanski et al., Theoretical analysis of lateral modes in broad-area semiconductor lasers with profiled reflectivity output facets, IEEE J Q EL, 37(3), 2001, pp. 430-438
This paper provides a theoretical analysis of the near-threshold behavior o
f broad-area lasers with profiled reflectivity output facets. Threshold cur
rents and far-held patterns of the lateral modes are calculated according t
o two models. The first model assumes that the modes are determined by the
effective lateral waveguide, while the second one is based on the modes of
an open resonator. Single- and three-stripe mirror configurations have been
considered. The main goal of the analysis is to identify the lateral guidi
ng mechanism in such lasers and to assess the influence of the mirror confi
guration on thresholds for single- and multimode operation and on beam char
acteristics.