Li, Shi and Yi, Yating and Yin, Yu and Jiang, Yuxuan and Zhao, Haiyan and Du, Yanqiu and Chen, Yujin and Lewis, Elfed and Farrell, Gerald and Harun, Sulaiman Wadi and Wang, Pengfei (2018) A Microfiber Knot Incorporating a Tungsten Disulfide Saturable Absorber Based Multi-Wavelength Mode-Locked Erbium-Doped Fiber Laser. Journal of Lightwave Technology, 36 (23). pp. 5633-5639. ISSN 0733-8724, DOI https://doi.org/10.1109/JLT.2018.2877583.
Full text not available from this repository.Abstract
A novel multi-wavelength mode-locked Erbium-doped fiber laser with tungsten disulfide (WS2) combined with a microfiber knot is described. This hybrid fiber structure facilitates strong light matter interaction between the saturated absorption of the WS2 material and high optical non-linearity of the microfiber knot. It is demonstrated experimentally that the novel fiber laser works stably in the absence of an external comb filter, with the generation of stable multi-wavelength picosecond pulses. In the multi-wavelength lasing regime, up to seven-wavelength stable mode-locked pulses are obtained using a polarization controller with the pump power at ∼250 mW. The pulse period and the pulsewidth are 188.7 ns and 16.3 ps, respectively. In addition, the number of multi-wavelength lasing channels can be changed by simply adjusting the microfiber knot size. Experimental results show the laser to have a stable output over 12-h recording period. The results of this investigation demonstrate that the optical microfiber knot with a WS2 overlay based fiber laser device can operate as a highly nonlinear optical component and a saturable absorber. The proposed multi-wavelength lasing device can therefore be widely used for non-linear and ultrafast photonics and has a number of advantages compared to similar devices using more conventional technologies, including low cost and good stability.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Fiber laser; High nonlinearity; Microfiber knot; Multi-wavelength |
| Subjects: | Q Science > Q Science (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 27 Dec 2018 01:48 |
| Last Modified: | 20 Feb 2020 04:49 |
| URI: | http://eprints.um.edu.my/id/eprint/19817 |
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