An All‐Optical, Actively Q‐Switched Fiber Laser by an Antimonene‐Based Optical Modulator

By Yunzheng Wang, Weichun Huang, Cong Wang, Jia Guo, Feng Zhang, Yufeng Song, Yanqi Ge, Leiming Wu, Jiefeng Liu, Jianqing Li and 1 more. Laser & Photonics reviews, 2019

136 citations recorded by the source corpus.

Q‐switched fiber lasers are of great interest in industrial material processing, nonlinear frequency conversion, spectroscopy etc. However, passive Q‐switching possesses drawbacks of degradation and failure of the saturable absorber and the difficulty in accurate modification of the repetition rate. To overcome these issues, active Q‐switching that can normally modulate the cavity quality‐factor by an externally‐driven Q‐switcher is in high demand. Herein, an actively Q‐switched laser with antimonene‐based all‐optical modulator is devised based on the high photo‐thermal efficiency (48%) and broadband response in antimonene. It is demonstrated that this actively modulated laser represents all‐optically tunable output parameters (e.g., output repetition rate), environmental stability, and easy synchronization. It is anticipated that this actively antimonene‐based all‐optical modulator with advantages of large modulation depth, low energy consumption, and high conversion efficiency has great potential in all‐optical information processing and pulsed laser engineering.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/143a540094b1a51a2e6c2c1c8eac86c2ffbbfba7