POLARIZATION CONTROL OF VERTICAL-CAVITY SURFACE-EMITTING LASERS THROUGH USE OF AN ANISOTROPIC GAIN DISTRIBUTION IN [110]-ORIENTED STRAINED-QUANTUM-WELL STRUCTURES
Dc. Sun et al., POLARIZATION CONTROL OF VERTICAL-CAVITY SURFACE-EMITTING LASERS THROUGH USE OF AN ANISOTROPIC GAIN DISTRIBUTION IN [110]-ORIENTED STRAINED-QUANTUM-WELL STRUCTURES, IEEE journal of selected topics in quantum electronics, 1(2), 1995, pp. 674-680
An analysis of the in-plane optical matrix elements connected with the
gain distribution of (In,Ga)As-GaAs quantum-well structures on (110)
GaAs substrates is presented, The in-plane gain distribution is found
to be anisotropic-with a maximum directed along the [($) over bar 110]
-[1 $($) over bar$$ 10] crystallographic axis, Optically-pumped vertic
al-cavity surface-emitting lasers on the (110) surface with these quan
tum wells in the cavity exhibit stable, well-defined polarization stat
es; this stability is believed to be a consequence of the predicted an
isotropic gain distribution on the (110) surface, Of the two orthogona
l eigen polarizations observed, the one with the higher optical intens
ity, for a given pump power, was found to be stablized along the [($)
over bar 110] crystallographic axis; this is in agreement with the ana
lysis.