中国激光, 2018, 45 (5): 0506001, 网络出版: 2018-05-02
基于耦合混沌半导体激光器之间双向信号传输的研究 下载: 808次
Bidirectional Signal Transmission Based on Two Coupled Chaotic Semiconductor Lasers
图 & 表
图 1. 基于混沌的双向信息传输系统的示意图
Fig. 1. Schematic of chaos-based bidirectional signal transmission system
图 2. 耦合-反馈系数平面的互相关系数
Fig. 2. Cross-correlation coefficient in the oupling-feedback coefficients plane
图 3. 相空间中(a) SL1、(b) SL2的吸引子图
Fig. 3. Diagram of attractors of (a) SL1 and (b) SL2 in phase space
图 4. 光功率的瞬时时间轨迹[SL2(红色)的轨迹垂直下移,以区别于SL1(蓝色)],插入图为SL1和SL2两种激光输出之间的互相关函数
Fig. 4. Temporal traces of optical power of SL1 (blue),SL2 (red). Traces of SL2 have been shifted vertically to istinguish it from SL1. Insert shows the cross-correlation function between the two laser outputs
图 6. (a)两束激光的传输信号m1(t)和m2(t);(b)传输信号差异的绝对值Δm(t);(c)由巴特沃斯滤波器整形后的同步误差的绝对值P1(t)-P2t;(d)通过P1(t)-P2t(blue)和m1(t)(red)以及解码发送信号m2(t)
Fig. 6. (a) Transmission signal of two lasers; (b) absolute value of difference of two lasers Δm(t); (c) synchronization errors P1(t)-P2t shaped by Butterworth filter; (d) decoding by P1(t)-P2t (blue) and m1(t) (red) to send signal m2(t)
表 1实验所需参数值
Table1. Parameter values used in simulation
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李齐良, 卢珊珊, 包琪, 陈德望, 唐向宏, 胡淼, 曾然, 杨国伟. 基于耦合混沌半导体激光器之间双向信号传输的研究[J]. 中国激光, 2018, 45(5): 0506001. Li Qiliang, Lu Shanshan, Bao Qi, Chen Dewang, Tang Xianghong, Hu Miao, Zeng Ran, Yang Guowei. Bidirectional Signal Transmission Based on Two Coupled Chaotic Semiconductor Lasers[J]. Chinese Journal of Lasers, 2018, 45(5): 0506001.