The relationship between chaos and gain in terms of intermodulation distortion İntermodülasyon di̇storsi̇yonun kaos ve kazanç i̇li̇şki̇si̇


Yildirim R.

Journal of the Faculty of Engineering and Architecture of Gazi University, vol.28, no.1, pp.43-50, 2013 (Journal Indexed in SCI Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 1
  • Publication Date: 2013
  • Title of Journal : Journal of the Faculty of Engineering and Architecture of Gazi University
  • Page Numbers: pp.43-50

Abstract

In this study, four-tone small signal analysis is performed for non-linear optoelectronic feedback laser diode system. In the analysis, after expanding the Volterra power series up to second-order, the second kernel (Z2) for the output intermodulation distortion (IMD) analysis is performed. The components which are 1. (ω0+ω1), (ω0- ω1) 2. (ω0+ω2), (ω0-ω2), 3. (ω0+ω 3), (ω0-ω3) and 4. (ω0+ω4), (ω0- ω4) among the alternative IMD frequencies are selected for the analysis. The amplitudes of the selected IMD frequency components are analysed depending on the time delay constant (t0) and the feedback gain constant (K). The critical frequencies (coherence collapse, chaos), and the critical feedback values are also determined.