Femtosecond Pulsed Fiber Laser Based on Graphdiyne-Modified Tapered Fiber

Nanomaterials

Si Chen¹  Wenli Bao¹  Haibin Wu²  Qing Wu² 

[1] Faculty of Basic Medicine, Hainan Vocational University of Science and Technology, Haikou 571126, China;Heilongjiang Province Key Laboratory of Laser Spectroscopy Technology and Application, Harbin University of Science and Technology, Harbin 150080, China;

关键词: graphdiyne;    tapered fiber;    saturable absorber;    femtosecond pulse;   

DOI  :  10.3390/nano12122050

来源: DOAJ

【 摘 要 】

We report the application of saturable absorbers prepared from graphdiyne-modified tapered fibers to an erbium-doped fiber laser to achieve a femtosecond pulse output. Graphdiyne quantum dots are successfully prepared by the Glaser–Hay method. The graphdiyne-based all-fiber saturable absorber device exhibited strongly saturable absorption characteristics with a modulation depth of 18.06% and a saturation intensity of 103.5 W. The net dispersion of the erbium-doped fiber laser cavity is ~0.016 ps², and a femtosecond pulse output with a bandwidth of 26.3 nm, a pulse width of 135.8 fs, and a single pulse capability of 54 pJ is obtained. This work lays the foundation for the application of the nonlinear optical material, graphdiyne, in ultrafast photonics.

【 授权许可】

Unknown