Dispersion compensation in an open-loop all-optical chaotic communication system

作     者：刘慧杰 任斌 冯久超 

作者机构：School of Electronic and Information EngineeringSouth China University of TechnologyGuangzhou 510641China Department of Electronic EngineeringDongguan University of TechnologyDongguan 523808China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2012年第21卷第4期

页      面：138-144页

核心收录：

学科分类：07[理学] 08[工学] 070201[理学-理论物理] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 60872123) the Joint Fund of the National Natural Science Foundation and the Guangdong Provincial Natural Science Foundation, China (Grant No. U0835001) the Guangdong Provincial Natural Science Foundation (Grant No. S2011010002144) 

主　　题：chaotic communication dispersion compensation semiconductor lasers strong injection open-loop configuration 

摘      要：The optical chaotic communication system using open-loop fiber transmission is studied under strong injection conditions. The optical chaotic communication system with open-loop configuration is studied using fiber transmission under strong injection conditions. The performances of fiber links composed of two types of fiber segments in different dispersion compensation maps are compared by testing the quality of the recovered message with different bit rates and encrypted by chaotic modulation （CM） or chaotic shift keying （CSK）. The result indicates that the performance of the pre-compensation map is always worst. Two types of symmetrical maps are identical whatever the encryption method and bit-rate of message are. For the transmitting and the recovering of message of lower bit rate （1 Gb/s）, the post-compensation map is the best scheme. However, for the message of higher bit rate （2.5 Gb/s）, the parameters in communication system need to be modified properly in order to adapt to the high-speed application. Meanwhile, two types of symmetrical maps are the best scheme. In addition, the CM method is superior to the CSK method for high-speed applications. It is in accordance with the result in a back-to-back configuration system.