典型文献
Parallel generation of low-correlation wideband complex chaotic signals using CW laser and external-cavity laser with self-phase-modulated injection
文献摘要:
A novel scheme for generating optical chaos is proposed and experimentally demonstrated, which supports to simultan-eously produce two low-correlation chaotic signals with wideband spectrum and suppressed time-delay-signature (TDS). In the proposed scheme, we use the output of an external-cavity semiconductor laser (ECSL) as the driving signal of a phase modulator to modulate the output of a CW laser. Then the phase-modulated continuous-wave (CW) light is split in-to two parts, one is injected back into the ECSL that outputs one chaotic signal, while the other part is passed through a dispersion module for generating another chaotic signal simultaneously. The experimental results prove that the pro-posed scheme has three merits. Firstly, it can improve the bandwidth of ECSL-based chaos by several times, and simul-taneously generate another wideband flat-spectrum chaotic signal. Secondly, the undesired TDS characteristics of the simultaneously-generated chaotic signals can be efficiently suppressed to an indistinguishable level within a wide para-meter range, as such the complexities of the chaotic signals are considerably high. Thirdly, the correlation coefficient between these two simultaneously-generated chaotic signals is smaller than 0.1. The proposed scheme provides an at-tractive solution for parallel multiple chaos generation, and shows great potential for multiple channel chaos communica-tions and multiple random bit generations.
文献关键词:
中图分类号:
作者姓名:
Anke Zhao;Ning Jiang;Jiafa Peng;Shiqin Liu;Yiqun Zhang;Kun Qiu
作者机构:
School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China
文献出处:
引用格式:
[1]Anke Zhao;Ning Jiang;Jiafa Peng;Shiqin Liu;Yiqun Zhang;Kun Qiu-.Parallel generation of low-correlation wideband complex chaotic signals using CW laser and external-cavity laser with self-phase-modulated injection)[J].光电进展(英文版),2022(05):49-56
A类:
ECSL
B类:
Parallel,low,correlation,wideband,chaotic,signals,using,CW,laser,external,cavity,self,phase,modulated,injection,novel,scheme,generating,optical,chaos,proposed,experimentally,demonstrated,which,supports,produce,two,spectrum,suppressed,delay,signature,TDS,In,use,semiconductor,driving,modulator,Then,continuous,wave,light,split,parts,one,injected,back,into,that,outputs,while,passed,through,dispersion,module,another,simultaneously,results,three,merits,Firstly,can,improve,bandwidth,by,several,times,flat,Secondly,undesired,characteristics,generated,efficiently,indistinguishable,level,within,meter,range,such,complexities,are,considerably,high,Thirdly,coefficient,between,these,smaller,than,provides,tractive,solution,parallel,multiple,shows,great,potential,channel,communica,random,bit,generations
AB值:
0.472102
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