Experimental investigation of evolution of dynamics in short-resonant-cavity DFB laser with optical feedback

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-06-16 DOI:10.1016/j.optlastec.2025.113397

Wenchao Chen , Yuanyuan Guo , Zhiwei Jia , Longsheng Wang , Anbang Wang , Yuncai Wang

引用次数: 0

Abstract

We conducted experiments to investigate the evolution of dynamics in short-resonant-cavity distributed feedback laser subject to optical feedback. Results reveal that the transition of the laser into chaos involves a regular switching between the stable state and quasi-periodic state. When exiting the chaotic state, the laser exhibits a switching between stable state and chaotic state, ultimately evolving into feedback locking. A new dynamic evolution path of the DFB laser has been proposed: stable state → switching between the stable state and quasi-periodic state → quasi-periodic state → chaotic state → switching between stable state and chaotic state → feedback locking. The influences of feedback strength on the duty cycle of quasi-periodic oscillation are examined. Moreover, a mapping of dynamics with respect to feedback strength and bias current is presented.

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光反馈短谐振腔DFB激光器动力学演化的实验研究

通过实验研究了短谐振腔分布反馈激光器在光反馈作用下的动力学演化。结果表明，激光向混沌的转变涉及稳态和准周期态之间的规则切换。当激光器脱离混沌状态时，激光器在稳态和混沌状态之间切换，最终演变为反馈锁定。提出了一种新的DFB激光器动态演化路径：稳态→稳态与准周期态切换→准周期态→混沌→稳态与混沌切换→反馈锁定。研究了反馈强度对准周期振荡占空比的影响。此外，还给出了反馈强度和偏置电流的动态映射。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems