Title :
Time-dependent simulation of a semiconductor laser amplifier: pulse compression in a ring configuration and dynamic optical bistability
Author :
Schell, Martin ; Schöll, Eckehard
Author_Institution :
Inst. fuer Festkorperphys., Tech. Univ. Berlin, West Germany
fDate :
6/1/1990 12:00:00 AM
Abstract :
A dynamic theory for a semiconductor laser amplifier with time-dependent optical input signal and driving injection current is presented. Previous treatments are extended by including a carrier density-dependent refractive index, a frequency-dependent gain, and multimode operation. The simulation yields optical bi- and tristability strongly depending on the speed at which the optical input-output characteristic is scanned. Tristability can be found in case of high pumping and large linewidth enhancement factor only. Applying the theory to a ring laser configuration, asymptotic pulse compression, which can lead to the emission of a stable sequence of short pulses with widths down to about 6 ps is found
Keywords :
high-speed optical techniques; laser modes; laser theory; optical bistability; optical pumping; refractive index; ring lasers; semiconductor junction lasers; spectral line breadth; 6 ps; carrier density-dependent refractive index; driving injection current; dynamic optical bistability; frequency-dependent gain; high pumping; large linewidth enhancement; laser pulse compression; multimode operation; optical bistability; optical tristability; ring configuration; ring laser; semiconductor laser amplifier; short pulses; time-dependent laser simulation; time-dependent optical input signal; Laser theory; Optical pulse compression; Optical pulses; Optical pumping; Optical refraction; Optical variables control; Pulse amplifiers; Semiconductor lasers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
