Wavelength switchable Q-switched fiber laser based on Fe3O4 nanoparticles

• Published in: Optik (Stuttgart) Vol. 243
• Main Authors: Yao, Junna, Jiang, Xinhua, Wang, Anting, Wang, Jinghao, Chen, Ruishan, Zhang, Jialang, Zhan, Qiwen
• Format: Journal Article
• Language: English
• Published: Elsevier GmbH 01.10.2021
• Subjects: Bubble poking method; Fe3O4 nanoparticles; Fiber lasers; Q-switched; Q-switched; Fe3O4 nanoparticles; Bubble poking method; Fiber lasers

We experimentally demonstrate an erbium-doped Q-switched fiber laser at 1.5µm by incorporating Fe3O4 nanoparticles as a saturable absorber. A novel approach for SA formation is demonstrated by using the bubble poking method, through which we can fabricate SA films with different thicknesses with eas...