Chaotic time-delay signature suppression with bandwidth broadening by fiber propagation

Li Song-Sui; Li Xiao-Zhou; Chan Sze-Chun

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Chaotic time-delay signature suppression with bandwidth broadening by fiber propagation

机译：通过光纤传播的带宽扩大的混沌时间延迟特征抑制

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Chaotic emission of a semiconductor laser is investigated through propagation over a fiber for achieving broadening of the bandwidth and suppression of the time-delay signature (TDS). Subject to delayed optical feedback, the laser first generates chaos with a limited bandwidth and an undesirable TDS. The laser emission is then delivered over a standard single-mode fiber for experiencing self-phase modulation, together with anomalous group-velocity dispersion, which leads to the broadening of the optical bandwidth and suppression of the TDS in die intensity signal. The effects are enhanced as the input power launched to the fiber increases. By experimentally launching up to 340 mW into a 20 km fiber, the TDS is suppressed by 10 times to below 0.04, while the bandwidth is broadened by six times to above 100 GHz. The improvement of the chaotic signal is potentially useful in random bit generation and range detection applications. (C) 2018 Optical Society of America

机译：通过在光纤上传播来研究半导体激光器的混沌发射，以实现展会时滞签名（TDS）的带宽和抑制。受到延迟的光学反馈，激光首先产生具有有限带宽和不希望的TDS的混沌。然后通过标准单模光纤输送激光发射以体验自相调制，以及异常的基团速度分散，这导致了模具强度信号中TDS的光学带宽和抑制的扩展。效果提高作为推出到纤维增加的输入功率。通过实验高达340兆瓦的20公里光纤，TDS将抑制10倍至低于0.04，而带宽将六次扩大到100 GHz高于100 GHz。混沌信号的改进可能在随机比特生成和范围检测应用中有用。（c）2018年光学学会

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来源
《Optics Letters》 |2018年第19期|共4页
作者
Li Song-Sui; Li Xiao-Zhou; Chan Sze-Chun;
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City Univ Hong Kong Dept Elect Engn Hong Kong Hong Kong Peoples R China;

City Univ Hong Kong Dept Elect Engn Hong Kong Hong Kong Peoples R China;

City Univ Hong Kong Dept Elect Engn Hong Kong Hong Kong Peoples R China;

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正文语种 eng
中图分类计量学;光学;
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专利

1. Chaotic time-delay signature suppression with bandwidth broadening by fiber propagation [J] . Li Song-Sui, Li Xiao-Zhou, Chan Sze-Chun Optics Letters . 2018,第19期

机译：通过光纤传播的带宽扩大的混沌时间延迟特征抑制
2. Complex-enhanced chaotic signals with time-delay signature suppression based on vertical-cavity surface-emitting lasers subject to chaotic optical injection [J] . Chen Jianjun, Duan Yingni, Zhong Zhuqiang Optical review . 2018,第3期

机译：基于垂直腔表面发射激光器的垂直腔表面发射激光器的时滞增强的混沌信号进行混沌光学注射
3. Time-delay signature suppression of polarization-resolved wideband chaos in VCSELs with dual-path chaotic optical injections [J] . Chen Jianjun, Li Chenxu, Mu Xueli, Applied optics . 2020,第24期

机译：具有双路混沌光学喷射的VCSEL中偏振分辨宽带混沌的时滞签名抑制
4. Bandwidth enhancement and time-delay signature suppression of chaotic signal from an optical feedback semiconductor laser by using cross phase modulation in a highly nonlinear fiber loop mirror [C] . Liang-Yan Wang, Zhu-Qiong Zhong, Zheng-Mao Wu, Semiconductor lasers and applications VII . 2016

机译：通过在高度非线性光纤环路镜中使用交叉相位调制，来增强光反馈半导体激光器中混沌信号的带宽增强和时延签名抑制
5. Experimental control of a fast chaotic time-delay opto-electronic device. [D] . Blakely, Jonathan Neal. 2003

机译：快速混沌时延光电器件的实验控制。
6. Chaotic Time-Delay Signature Suppression and Entropy Growth Enhancement Using Frequency-Band Extractor [O] . Yanqiang Guo, Tong Liu, Tong Zhao, 2021

机译：使用频带提取器混沌时间延迟特征抑制和熵增长增强
7. Time-delay signature suppression in a chaotic semiconductor laser by fiber random grating induced distributed feedback [O] . Xu, Yanping, Zhang, Mingjiang, Zhang, Liang, 2017

机译：混沌半导体激光器中的时间延迟特征抑制光纤随机光栅诱导分布反馈
8. Electromagnetic Propagation in Multimode Optical Fibers, Excited by Sources of Finite Bandwidth [R] . Papas, C. H. 1980

机译：多模光纤中的电磁传播，由有限带宽源激发

Chaotic time-delay signature suppression with bandwidth broadening by fiber propagation

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