Zhang, M and Hu, G and Hu, G and Howe, RCT and Chen, L and Zheng, Z and Hasan, T (2015) Yb- and Er-doped fiber laser Q-switched with an optically uniform, broadband WS<inf>2</inf> saturable absorber. Scientific Reports, 5. 17482-.
Full text not available from this repository.Abstract
We demonstrate a ytterbium (Yb) and an erbium (Er)-doped fiber laser Q-switched by a solution processed, optically uniform, few-layer tungsten disulfide saturable absorber (WS2-SA). Nonlinear optical absorption of the WS2-SA in the sub-bandgap region, attributed to the edge-induced states, is characterized by 3.1% and 4.9% modulation depths with 1.38 and 3.83 MW/cm2 saturation intensities at 1030 and 1558 nm, respectively. By integrating the optically uniform WS2-SA in the Yb- and Er-doped laser cavities, we obtain self-starting Q-switched pulses with microsecond duration and kilohertz repetition rates at 1030 and 1558 nm. Our work demonstrates broadband sub-bandgap saturable absorption of a single, solution processed WS2-SA, providing new potential efficacy for WS2 in ultrafast photonic applications.
Item Type: | Article |
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Subjects: | UNSPECIFIED |
Divisions: | Div B > Solid State Electronics and Nanoscale Science |
Depositing User: | Cron Job |
Date Deposited: | 17 Jul 2017 18:57 |
Last Modified: | 04 Mar 2021 04:04 |
DOI: | 10.1038/srep17482 |