Optical Heterodyne Generation of High-Dimensional and Broadband White Chaos

被引：83
|
作者：
Wang, Anbang [1 ,2 ]
Wang, Bingjie [1 ,2 ]
Li, Lei [1 ,2 ]
Wang, Yuncai [1 ,2 ]
Shore, K. Alan [3 ]
机构：
[1] Taiyuan Univ Technol, Key Lab Adv Transducers & Intelligent Control Sys, Minist Educ & Shanxi Prov, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Peoples R China
[3] Bangor Univ, Sch Elect Engn, Bangor LL57 1UT, Gwynedd, Wales
来源：
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2015年 / 21卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Chaos; heterodyning; optical feedback; semiconductor lasers; white noise; RANDOM BIT GENERATION; BANDWIDTH-ENHANCED CHAOS; TIME-DELAY SIGNATURE; SURFACE-EMITTING LASERS; SEMICONDUCTOR-LASER; FEEDBACK; DYNAMICS; SUBJECT; OUTPUT;
D O I：
10.1109/JSTQE.2015.2427253
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
White chaos with a colorless spectral bandwidth of 14 GHz contained within a range of 3 dB is experimentally generated by optical heterodyning of two external-cavity laser diodes. Experimental and numerical results show that the signatures of laser relaxation oscillation and external-cavity resonance (i.e., time delay signature), which are intrinsic to the laser dynamics are totally eliminated in the heterodyne-generated chaos. Correlation dimensional analysis shows that the generated chaos has a high dimensionality, being greater than 10. In addition, the effects on the heterodyne spectral bandwidth of variations in the optical feedback strength and frequency detuning of the lasers are studied experimentally and theoretically. Opportunities are identified for the deployment of white chaos.
引用
收藏
页码：531 / 540
页数：10
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