Small-Signal Analysis of Performance Characterization of Chaotic Masking Decoding in Injected Semiconductor Lasers  

作　　者：颜森林 

机构地区：[1]Department of Physics, Nanjing Xiaozhuang College, Nanjing 210017 [2]School of Communieation and Electronic Engineering, 3iangxi Science and Technology Normal University, Nanchang 330013

出　　处：《Chinese Physics Letters》2005年第10期2504-2507,共4页中国物理快报（英文版）

摘　　要：Performance characterization of chaotic masking encoding and decoding is studied in synchronization injected semiconductor lasers under condition of injected-feedback. The modulation response function of chaotic masking encoding and its response factor are theoretically deduced and analysed by small-signal analysis. It is numerically demonstrated that there are peak values between 1.52 GHz and 3.18 GHz when the injection coefficient is between 0.2 and 0.8. The chaotic synchronization error equation is theoretically deduced and its root is given by small- signal analysis under condition of chaotic masking encoding. The chaotic decoding formula is also theoretically demonstrated. There are the least dale values of synchronization errors between the modulation frequencies of 0.79GHz and 1.91 GHz when the injection coefficient is between 0.1 and 0.8 in numerical simulation. The numerical result is well consistent with the theoretical demonstration.Performance characterization of chaotic masking encoding and decoding is studied in synchronization injected semiconductor lasers under condition of injected-feedback. The modulation response function of chaotic masking encoding and its response factor are theoretically deduced and analysed by small-signal analysis. It is numerically demonstrated that there are peak values between 1.52 GHz and 3.18 GHz when the injection coefficient is between 0.2 and 0.8. The chaotic synchronization error equation is theoretically deduced and its root is given by small- signal analysis under condition of chaotic masking encoding. The chaotic decoding formula is also theoretically demonstrated. There are the least dale values of synchronization errors between the modulation frequencies of 0.79GHz and 1.91 GHz when the injection coefficient is between 0.1 and 0.8 in numerical simulation. The numerical result is well consistent with the theoretical demonstration.

关 键 词：COMMUNICATION SCHEME SYNCHRONIZATION SYSTEMS MODEL 

分 类 号：TN911.6[电子电信—通信与信息系统]