K. Panajotov et al., Impact of in-plane anisotropic strain on the polarization behavior of vertical-cavity surface-emitting lasers, APPL PHYS L, 77(11), 2000, pp. 1590-1592
We experimentally demonstrate that the presence of switching between two fu
ndamental modes with orthogonal linear polarization in vertical-cavity surf
ace-emitting lasers and the current at which this phenomenon occurs depend
on both the magnitude and the orientation of an externally induced in-plane
anisotropic strain. We interpret this behavior by considering the anisotro
py in gain and in refractive index, both induced by the in-plane strain, an
d by accounting for a redshift of the two gain curves as a result of curren
t-induced heating. (C) 2000 American Institute of Physics. [S0003-6951(00)0
2237-3].