  In this paper, the strain, band-edge, and energy levels of pyramidal In_x
Ga_(1-x) As/GaAs quantum dot lasers (QDLs) are investigated by 1-band effective
mass approach. It is shown that while temperature has no remarkable effect on
the strain tensor, the band gap lowers and the radiation wavelength elongates
by rising temperature. Also, band-gap and laser energy do not linearly decrease
by temperature rise. Our results appear to coincide with former researches.
  Keywords: quantum dot laser, strain tensor, band edge, nano-electronics,
temperature effect

Computational Physics;Mesoscale and Nanoscale Physics