Title :
Chaotic pulsing and quasi-periodic route to chaos in a semiconductor laser with delayed opto-electronic feedback
Author :
Tang, S. ; Liu, J.M.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
Chaotic pulsing and the route to chaos in a semiconductor laser with delayed, positive opto-electronic feedback are investigated numerically and experimentally. Both numerical simulation and experimental observation indicate that the laser enters a chaotic pulsing state at certain delay times of the feedback loop through a quasi-periodic route. The characteristics of each dynamical state are analyzed. The chaotic pulsing state is verified with a positive Lyapunov exponent and a fractal correlation dimension. The experimental results show very good qualitative agreement with the numerical results. Quantitative discrepancy between experimental and numerical results can be explained by the bandpass characteristics of the electronic feedback loop
Keywords :
Lyapunov methods; fractals; laser beams; laser feedback; nonlinear optics; numerical analysis; optical chaos; semiconductor lasers; bandpass characteristics; chaotic pulsing; chaotic pulsing state; delay times; delayed opto-electronic feedback; delayed positive opto-electronic feedback; dynamical state; electronic feedback loop; experimental observation; feedback loop; fractal correlation dimension; numerical results; numerical simulation; positive Lyapunov exponent; qualitative agreement; quantitative discrepancy; quasi-periodic route; semiconductor laser; Chaos; Chaotic communication; Delay; Feedback loop; Laser feedback; Negative feedback; Nonlinear optics; Optical feedback; Optical pulse generation; Semiconductor lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
