Experimental evidence of Phase Control method in chaotic Semiconductor Laser

  • Raghad I. Ibrahim Department of Physics, College of Science FOR women, University of Baghdad, Baghdad, Iraq
  • Kais A. M. Al Naimee Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq
  • Sameer Kh. Yaseen Department of Physics, College of Science FOR women, University of Baghdad, Baghdad, Iraq

Abstract

we study how to control the dynamics of excitable systems by using the phase control technique.We study how to control nonlinear semiconductor laser dynamics with optoelectronic feedback using the phase control method. The phase control method uses the phase difference between a small.added frequenc y and the main driving frequency to suppress chaos, which leads to various periodic orbits. The experimental studying for the evaluation of chaos modulation behavior are considered in two conditions, the first condition, when one frequency of the external perturbation is varied, secondly, when two of these perturbations are changed. The chaotic system becomes regular under one frequency or two frequencies, But in two frequencies, phase control showed an excellent ability to maintain regular behavior in chaotic window and reexcite chaotic behavior when destroyed. This dynamics of the laser output are analyzed by time series and bifurcation diagram.

Published
Jul 17, 2019
How to Cite
IBRAHIM, Raghad I.; AL NAIMEE, Kais A. M.; YASEEN, Sameer Kh.. Experimental evidence of Phase Control method in chaotic Semiconductor Laser. Iraqi Journal of Science, [S.l.], p. 1469-1477, july 2019. ISSN 2312-1637. Available at: <http://scbaghdad.edu.iq/eijs/index.php/eijs/article/view/915>. Date accessed: 08 dec. 2019.
Section
Physics