Transient response of an optically pumped short-cavity semiconductor laser

FDTD Simulation of the Nonlinear Gain Dynamics in Active Optical Waveguides and Semiconductor Microcavities

“…Undertaking such an effort is justified by the recent experimental and theoretical studies of the ultrashort pulse propagation in semiconductor optical amplifiers (SOAs) [8], [34], [35] and the transient response investigations under femtosecond pulse excitations in VCSELs [9], [36]. These investigations definitely show that new physical effects become important in this regime which require treatments beyond the usual approximations [10], [11].…”

Self-induced ultrafast electron-hole plasma temperature oscillations in nanowire lasers

“…The lasing energy (E lasing ) is below the respective average kinetic energy (E cold avg , E hot avg ). Thus, stimulated emission at a rate γ lasing heats the remaining electron distribution [34][35][36][37][38][39] . In case this heating via γ lasing is sufficiently strong to overcome the cooling via γ ep , T e rises.…”

Influence of carrier relaxation on the dynamics of stimulated emission in microcavity lasers

“…1,2 Recently, the emission dynamics of VCSELs have been extensively studied and pulse durations down to a few picoseconds have been reported. [2][3][4][5] A microscopic model has revealed the importance of nonequilibrium carrier effects for the gain and emission dynamics of VC-SELs on ultrashort timescales. 6 Furthermore, it has been predicted 7 and experimentally confirmed 8 that carrier heating effects can effectively switch off a microlaser on the time scale of a picosecond.…”