Nonlinear dynamics in a circular-sided square microcavity laser

IF 6.6 1区物理与天体物理 Q1 OPTICS

Photonics Research Pub Date : 2023-11-01 DOI:10.1364/prj.489371

Jian-Cheng Li, Jin-Long Xiao, Yue-De Yang, You-Ling Chen, and Yong-Zhen Huang

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引用次数: 0

Abstract

Self-chaotic dual-mode and tri-mode microcavity lasers have been recently proposed and demonstrated for high-speed random number generation. Here, we report the characteristics of irregular pulse packages and self-chaos operation for a dual-mode circular-sided square microcavity laser. In addition to the mode interaction between the fundamental and first-order transverse modes, we observed irregular pulse packages due to the mode beating of near-degenerate modes for the first time to our best knowledge. Moreover, a successive route from periodic-one and periodic-three states to chaos is first experimentally illustrated by increasing injection current. The chaotic state is observed over a current range of 10 mA, and the maximum chaos effective bandwidth of 22.4 GHz is realized with a flatness of ±4 dB $\pm 4 dB$ . Chaotic characteristics are also investigated for different longitudinal modes, which indicates that the self-chaotic microlaser can provide robust parallel chaotic outputs for practical application.

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圆边方形微腔激光器的非线性动力学

自混沌双模和三模微腔激光器最近被提出并证明用于高速随机数产生。在这里，我们报道了双模圆边方形微腔激光器的不规则脉冲封装和自混沌操作的特性。除了基本横模和一阶横模之间的模相互作用外，据我们所知，由于近简并模的模拍，我们首次观察到了不规则脉冲包。此外，通过增加注入电流，首次通过实验说明了从周期一态和周期三态到混沌的连续路径。在10mA的电流范围内观察到混沌状态，实现了22.4GHz的最大混沌有效带宽，平坦度为±4dB±4dB。研究了不同纵向模式下的混沌特性，表明自混沌微激光器可以为实际应用提供鲁棒的并行混沌输出。

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来源期刊

Photonics Research OPTICS-

CiteScore

13.60

自引率

5.30%

发文量

1325

期刊介绍： Photonics Research is a joint publishing effort of the OSA and Chinese Laser Press.It publishes fundamental and applied research progress in optics and photonics. Topics include, but are not limited to, lasers, LEDs and other light sources; fiber optics and optical communications; imaging, detectors and sensors; novel materials and engineered structures; optical data storage and displays; plasmonics; quantum optics; diffractive optics and guided optics; medical optics and biophotonics; ultraviolet and x-rays; terahertz technology.