Title :
Theory of subpicosecond pulse generation by active modelocking of a semiconductor laser amplifier in an external cavity: limits for the pulsewidth
Author :
Schell, Martin ; Weber, Andreas G. ; Bottcher, E.H. ; Scholl, Eckehard ; Bimberg, Dieter
Author_Institution :
Tech. Univ. Berlin, Germany
fDate :
3/1/1991 12:00:00 AM
Abstract :
Active mode-locking of a semiconductor laser amplifier (SCLA) in an external cavity is theoretically modeled using a cosh-2 description for the optical pulses. Analytical solutions are derived. The model includes finite gainwidth, which is shown to be of the greatest importance for a correct description, and gain saturation. A lower limit of the optical pulsewidth is derived in terms of the gainwidth, the injection current, the external loss, and other parameters
Keywords :
high-speed optical techniques; laser mode locking; semiconductor junction lasers; active modelocking; external cavity; external loss; finite gainwidth; gain saturation; injection current; optical pulses; optical pulsewidth; semiconductor laser amplifier; subpicosecond pulse generation; Laser mode locking; Laser theory; Optical pulse generation; Optical pulses; Optical saturation; Pulse amplifiers; Pulse generation; Semiconductor lasers; Semiconductor optical amplifiers; Space vector pulse width modulation;
Journal_Title :
Quantum Electronics, IEEE Journal of
