Hybrid mode-locked fiber ring laser using graphene and charcoal nanoparticles as saturable absorbers

Hongyu Hu; Xiang Zhang; Wenbo Li; Niloy K. Dutta

doi:10.1117/12.2224962

25 May 2016 Hybrid mode-locked fiber ring laser using graphene and charcoal nanoparticles as saturable absorbers

Hongyu Hu, Xiang Zhang, Wenbo Li, Niloy K. Dutta

Proceedings Volume 9836, Micro- and Nanotechnology Sensors, Systems, and Applications VIII; 983630 (2016) https://doi.org/10.1117/12.2224962
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

A fiber ring laser which implements hybrid mode locking technique has been proposed and experimentally demonstrated to generate pulse train at 20 GHz repetition rate with ultrashort pulse width. Graphene and charcoal nano-particles acting as passive mode lockers are inserted into a rational harmonic mode-locked fiber laser to improve the performance. With graphene saturable absorbers, the pulse duration is shortened from 5.3 ps to 2.8 ps, and with charcoal nano-particles, it is shortened to 3.2 ps. The RF spectra show that supermode noise can be removed in the presence of the saturable absorbers. Numerical simulation of the pulse transmission has also been carried out, which shows good agreement with the experimental results.

Citation Download Citation

Hongyu Hu, Xiang Zhang, Wenbo Li, and Niloy K. Dutta "Hybrid mode-locked fiber ring laser using graphene and charcoal nanoparticles as saturable absorbers", Proc. SPIE 9836, Micro- and Nanotechnology Sensors, Systems, and Applications VIII, 983630 (25 May 2016); https://doi.org/10.1117/12.2224962

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