Open AccessChaos synchronization in mutually coupled semiconductor lasers with asymmetrical bias currents
Author(s) -
Tao Deng,
Guang-Qiong Xia,
Zheng-Mao Wu,
Xiaohui Lin,
Jiagui Wu
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.008762
Subject(s) - synchronization (alternating current) , semiconductor laser theory , physics , chaos (operating system) , synchronization of chaos , laser , optical chaos , coupling (piping) , biasing , optics , semiconductor , statistical physics , control theory (sociology) , optoelectronics , computer science , quantum mechanics , telecommunications , materials science , channel (broadcasting) , voltage , computer security , control (management) , artificial intelligence , metallurgy
We experimentally and numerically investigated the chaos synchronization characteristics of mutually coupled semiconductor lasers (MCSLs) with asymmetrical bias currents. Experimental results show that, asymmetrical bias current level of two MCSLs has obvious influence on chaos synchronization between them, and stable leader-laggard chaos synchronization can be realized under relatively large asymmetrical bias current levels. Moreover, the influences of frequency detuning and mutually coupling strength between the two lasers on chaos synchronization performance have also been discussed. Theoretical simulations basically conform to our experimental observations.