Time-delay signature concealed broadband gain-coupled chaotic laser with fiber random grating induced distributed feedback

被引：16

作者：

Xu, Yanping ^{[1
]}

Zhang, Liang ^{[1
]}

Lu, Ping ^{[2
]}

Mihailov, Steven ^{[2
]}

Chen, Liang ^{[1
]}

Bao, Xiaoyi ^{[1
]}

机构：

[1] Univ Ottawa, Dept Phys, 25 Templeton St, Ottawa, ON K1N 6N5, Canada

[2] Natl Res Council Canada, 100 Sussex Dr, Ottawa, ON K1A 0R6, Canada

来源：

OPTICS AND LASER TECHNOLOGY | 2019年 / 109卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Lasers; Distributed-feedback; Semiconductor lasers; Instabilities and chaos; RANDOM BIT GENERATION; SEMICONDUCTOR-LASERS; OPTICAL FEEDBACK; INJECTION; DYNAMICS; DIODE; SYNCHRONIZATION; SUPPRESSION; OUTPUT;

D O I：

10.1016/j.optlastec.2018.08.057

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A broadband chaotic laser with a flat power spectrum extending up to similar to 7.53 GHz is achieved by injecting continuous wave laser light into a chaotic diode laser perturbed by fiber random grating induced distributed feedback, which forms a gain-coupled chaotic laser system. More than triple bandwidth enhancement is realized with appropriate frequency detuning between the master and slave lasers. Unlike normal chaotic lasers, the output from such a broadband chaotic laser is free from time-delay signature, which can be potentially applied for practical random number generations and will find useful applications in the fields of information security and computation systems.

引用

页码：654 / 658

页数：5

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