Simultaneous bandwidth-enhanced and time delay signature-suppressed chaos generation in semiconductor laser subject to feedback from parallel coupling ring resonators

被引：76

作者：

Jiang, Ning ^{[1
]}

Wang, Yajun ^{[1
]}

Zhao, Anke ^{[1
]}

Liu, Shiqin ^{[1
]}

Zhang, Yiqun ^{[1
]}

Chen, Lu ^{[1
]}

Li, Baochuan ^{[1
]}

Qiu, Kun ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu 611731, Peoples R China

来源：

OPTICS EXPRESS | 2020年 / 28卷 / 02期

基金：

中国国家自然科学基金;

关键词：

PHASE-MODULATED FEEDBACK; RANDOM BIT GENERATION; WIDE-BAND CHAOS; OPTICAL FEEDBACK; COMPLEXITY; DYNAMICS; DIODE;

D O I：

10.1364/OE.385889

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose and demonstrate an external-feedback semiconductor laser-based chaos generation scheme supporting simultaneous bandwidth enhancement and excellent time-delay-signature (TDS) suppression, by using parallel-coupling ring resonators (PCRR) as reflector. The characteristics of effective bandwidth and TDS of chaotic signals generated in three indicative PCRR configurations are thoroughly investigated. The numerical results demonstrate that with the nonlinear feedback of PCRR, the TDS of chaos can be efficiently suppressed toward an indistinguishable level, and the bandwidth of chaos in the proposed scheme can also be enhanced, with respect to the conventional optical feedback configuration. The proposed scheme shows a flexible way to generate wideband complex chaos. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：1999 / 2009

页数：11

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