Summary
the 2014 International Symposium on Nonlinear Theory and its Applications
2014
Session Number:C1L-E
Session:
Number:C1L-E2
Steady state analysis of short-term exchange of leader-laggard relationship in chaotic synchronized semiconductor lasers with low-frequency fluctuations
Kazutaka Kanno, Takuya Hida, Atsushi Uchida, Masatoshi Bunsen,
pp.462-465
Publication Date:2014/9/14
Online ISSN:2188-5079
Summary:
We investigate synchronized dynamics of mutually-coupled semiconductor lasers with low frequency fluctuations (LFFs). The mutually-coupled semiconductor lasers show the repeated spontaneous switching of leader-laggard relationship. Leader-laggard relationship is the phenomenon that one system in synchronized mutually-coupled dynamical systems oscillates forward and is called "leader," and other system is called "laggard." We observe that the leader-laggard relationship is inverted repeatedly at the propagation delay time interval and explain the phenomenon by using the analysis of steady state solution in the Lang-Kobayashi equations for the dynamics of semiconductor lasers. We found that the optical frequency of one laser attracts that of another laser, and the leader-laggard relationship is exchanged repeatedly.