Abstract
Many-body effects have recently been shown to have a significant impact on the nature of femtosecond pulse propagation in semiconductor amplifiers, [1]. Plasma heating, for example, reduces the gain whereas memory effects remove the artificial Lorentzian tails giving rise to nonphysical absorption below the renormalized bandgap, [2]. The role of these many-body microscopic effects in semiconductor lasers, where the carrier density is (approximately) clamped to its threshold value, is less clear. Numerical simulation of the full Maxwell-Semiconductor Bloch equations is clearly out of the question for a multiple pass laser configuration.
© 1996 Optical Society of America
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