Open AccessChaos modulation in semiconductor laser with optoelectronic feedback
Author(s) -
Raghad I. Ibrahim,
K. Al Naimee,
Sameer Kh. Yaseen
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/610/1/012084
Subject(s) - attractor , semiconductor laser theory , perturbation (astronomy) , laser , amplitude , physics , bifurcation , bifurcation diagram , frequency modulation , semiconductor , modulation (music) , amplitude modulation , fourier transform , optics , statistical physics , mathematics , computer science , mathematical analysis , nonlinear system , optoelectronics , telecommunications , quantum mechanics , bandwidth (computing) , acoustics
The experimental and numerical study of chaos modulation will be presented in two stats, first, when the frequency of the external perturbation is varied, secondly, when the amplitude of this perturbation is changed. The dynamics of the laser output are analyzed by Fast Fourier Transformation, attractors and bifurcation Diagram. Some frequencies could be hidden other appeared, when the frequencies are hidden, the communication link considered as secure.