Chen Si, Wang Fengpeng, Kuang Fangguang, Kang Shuying, Liang Hanwen, Zheng Lijing, Guan Lixin, Wu Qing
School of Physics and Electronic Information, Gannan Normal University, Ganzhou 341000, China.
Heilongjiang Province Key Laboratory of Laser Spectroscopy Technology and Application, Harbin University of Science and Technology, Harbin 150080, China.
Nanomaterials (Basel). 2022 Aug 11;12(16):2747. doi: 10.3390/nano12162747.
We report on all-optical devices prepared from WSe combined with drawn tapered fibers as saturable absorbers to achieve ultrashort pulse output. The saturable absorber with a high damage threshold and high saturable absorption characteristics is prepared for application in erbium-doped fiber lasers by the liquid phase exfoliation method for WSe, and the all-optical device exhibited strong saturable absorption characteristics with a modulation depth of 15% and a saturation intensity of 100.58 W. The net dispersion of the erbium-doped fiber laser cavity is ~-0.1 ps, and a femtosecond pulse output with a bandwidth of 11.4 nm, a pulse width of 390 fs, and a single-pulse capability of 42 pJ is obtained. Results indicate that the proposed WSe saturable absorbers are efficient, photonic devices to realize stable fiber lasers. The results demonstrate that the WSe saturable absorber is an effective photonic device for realizing stable fiber lasers, which have a certain significance for the development of potential photonic devices.
我们报道了由WSe与拉锥光纤组合制备的全光器件作为可饱和吸收体以实现超短脉冲输出。通过WSe的液相剥离法制备了具有高损伤阈值和高可饱和吸收特性的可饱和吸收体，用于掺铒光纤激光器，该全光器件表现出强可饱和吸收特性，调制深度为15%，饱和强度为100.58 W。掺铒光纤激光腔的净色散约为-0.1 ps，获得了带宽为11.4 nm、脉冲宽度为390 fs、单脉冲能量为42 pJ的飞秒脉冲输出。结果表明，所提出的WSe可饱和吸收体是实现稳定光纤激光器的高效光子器件。结果表明，WSe可饱和吸收体是实现稳定光纤激光器的有效光子器件，这对潜在光子器件的发展具有一定意义。
