Open AccessBidirectional chaos communication between two outer semiconductor lasers coupled mutually with a central semiconductor laser
Author(s) -
Ping Li,
Jiagui Wu,
Zheng-Mao Wu,
Xiaohui Lin,
Dao Deng,
Yu-Ran Liu,
Guang-Qiong Xia
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.19.023921
Subject(s) - laser , semiconductor laser theory , optical chaos , optics , synchronization (alternating current) , physics , optoelectronics , semiconductor , materials science , computer science , telecommunications , channel (broadcasting)
Based on a linear chain composed of a central semiconductor laser and two outer semiconductor lasers, chaos synchronization and bidirectional communication between two outer lasers have been investigated under the case that the central laser and the two outer lasers are coupled mutually, whereas there exists no coupling between the two outer lasers. The simulation results show that high-quality and stable isochronal synchronization between the two outer lasers can be achieved, while the cross-correlation coefficients between the two outer lasers and the central laser are very low under proper operation condition. Based on the high performance chaos synchronization between the two outer lasers, message bidirectional transmissions of bit rates up to 20 Gbit/s can be realized through adopting a novel decoding scheme which is different from that based on chaos pass filtering effect. Furthermore, the security of bidirectional communication is also analyzed.