Observation of flat chaos generation using an optical feedback multi-mode laser with a band-pass filter

被引：58
作者：
Li, Pu [1 ,2 ,3 ,4 ,5 ]
Cai, Qiang [1 ,2 ]
Zhang, Jianguo [1 ,2 ]
Xu, Bingjie [5 ]
Liu, Yiming [5 ]
Bogris, Adonis [6 ]
Shore, K. Alan [7 ]
Wang, Yuncai [3 ]
机构：
[1] Taiyuan Univ Technol, Minist Educ, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Shanxi, Peoples R China
[2] Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China
[3] Guangdong Univ Thchnol, Sch Informat Engn, Guangzhou 510006, Guangdong, Peoples R China
[4] Shanghai Univ, Key Lab Specialty Fiber Opt & Opt Access Networks, Shanghai 200444, Peoples R China
[5] Inst Southwestern Commun, Sci & Technol Commun Lab, Chengdu 610041, Sichuan, Peoples R China
[6] Univ West Attica, Dept Informat & Comp Engn, Athens 12243, Greece
[7] Bangor Univ, Sch Comp Sci & Elect Engn, Bangor LL57 1UT, Gwynedd, Wales
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 13期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
RANDOM BIT GENERATION; TIME-DELAY SIGNATURE; SEMICONDUCTOR-LASER; COHERENCE; DYNAMICS;
D O I：
10.1364/OE.27.017859
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate experimentally that flat and broadband chaotic signals can be easily generated by combining a multi-mode laser diode subject to optical feedback with a band-pass filter. Measurements are made of the RF spectra of multi-mode and single-mode outputs from an external cavity Fabry-Perot (FP) semiconductor laser before and after the filtering procedure. In this way it is found that in the chaos regime the low-frequency energy of the single-mode output is enhanced by about 25 dB comparing with that of the multi-mode output. Moreover, the associated 3-dB chaos bandwidth can reach around 6 GHz for the single mode case. Numerical demonstrations show mode competition is the physical origin of the low-frequency enhancement in the single-mode chaotic outputs. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：17859 / 17867
页数：9
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