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- ItemA model for mode-locking in quantum dot lasers(Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2006) Viktorov, Evgeny; Mandel, Paul; Vladimirov, Andrei; Bandelow, UweWe propose a model for passive mode-locking in quantum dot laser and report on specific dynamical properties of the regime which is characterized by a fast gain recovery. No Q-switching instability has been found accompanying the mode-locking. Bistability can occur between the mode-locking regime and zero intensity steady state.
- ItemBifurcations in a model of monolithic passively mode-locked semiconductior laser(Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2008) Vladimirov, Andrei; Pimenov, Alexander; Rachinskii, DmitriiBifurcation mechanisms of the development and break up of different operation regimes in a passively mode-locked monolithic semiconductor laser are studied by solving numerically partial differential equations for amplitudes of two counterpropagating waves and carrier densities in gain and absorber sections. It is shown that harmonic mode-locking regime with two pulses in the cavity can exhibit a period-doubling bifurcation leading to different amplitudes and separations of the pulses. The effect of linewidth enhancement factors in gain and absorber sections on the laser dynamics is discussed.