Title :
Simulation of two-state lasing dynamics in quantum-dot lasers
Author :
Su, L.C. ; Mao, M.-H.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
Abstract :
Dynamics of two-state-lasing in quantum-dot lasers is theoretically investigated in this study. To observe the two-state lasing phenomenon, the total optical loss is assumed close to the saturation gain of quantum-dot ground states. Our simulation results show that the onset of excited-state lasing prior to ground-state lasing in the transient responses. This phenomenon is dramatically different from the static two-state lasing behavior in quantum-dot lasers
Keywords :
excited states; ground states; laser beams; optical losses; quantum dot lasers; excited-state; optical loss; quantum-dot ground states; quantum-dot lasers; saturation gain; transient response; two-state lasing dynamics simulation; Current density; High speed optical techniques; Laser excitation; Laser theory; Optical losses; Optical saturation; Quantum dot lasers; Stationary state; Steady-state; Stimulated emission;
Conference_Titel :
Numerical Simulation of Semiconductor Optoelectronic Devices, 2006. NUSOD '06. International Conference on
Conference_Location :
Nanyang Technological University, Nanyang Executive Centre, Singapore, China
Print_ISBN :
0-7803-9755-X
DOI :
10.1109/NUSOD.2006.306723
