期刊
NANOMATERIALS
卷 10, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/nano10101922
关键词
High-damage 2D Titanium disulfide materials; ultra-fast optical modulation; mode-locked and Q-switched; saturable absorber
类别
资金
- National Natural Science Foundation of China [11904213, 11747149, 12074225]
- Shandong Province Natural Science Foundation [ZR2018QF006, ZR2019MF029]
- China Postdoctoral Science Foundation [2016M602177]
- Opening Foundation of Shandong Provincial Key Laboratory of Laser Technology and Application
In our work, passively mode-locked and Q-switched Er-doped fiber lasers (EDFLs) based on titanium disulfide (TiS2) as a saturable absorber (SA) were generated successfully. Stable mode-locked pulses centred at 1531.69 nm with the minimum pulse width of 2.36 ps were obtained. By reducing the length of the laser cavity and optimizing the cavity loss, Q-switched operation with a maximum pulse energy of 67.2 nJ and a minimum pulse duration of 2.34 mu s was also obtained. Its repetition rate monotonically increased from 13.17 kHz to 48.45 kHz with about a 35 kHz tuning range. Our experiment results fully indicate that TiS2 exhibits excellent nonlinear absorption performance and significant potential in acting as ultra-fast photonics devices.
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