Work

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

Year: 2025

Type: article

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.

Source: Optics & Laser Technology

DOI: 10.1016/j.optlastec.2025.113397

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

Institutions: Taiyuan University of Technology, Guangdong University of Technology

Language: English

Topic: Semiconductor Lasers and Optical Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,230