Yang Fuhao, Sui Zhiqi, Sun Shuo, Chen Si, Wang Yanjuan, Fan Weiyu, Li Shuaimeng, Wang Guomei, Zhang Wenfei, Lu Cheng, Fu Shenggui, Zhang Huanian
School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo 255049, China.
School of Physics and Electronics, Shandong Normal University, Jinan 250358, China.
Nanophotonics. 2022 Nov 3;11(21):4937-4945. doi: 10.1515/nanoph-2022-0483. eCollection 2022 Dec.
Ferromagnetic semiconductor chromium sulfide (CrS), as a member of transition metal chalcogenide (TMC), exhibits the narrow bandgap value of 0.45 eV theoretically and has been applied in photoelectric field. However, the application in ultrafast fiber laser of CrS has not been investigation at present. In this work, the CrS-based SA was successfully prepared by depositing nanosheets onto tapered fiber. The conventional soliton (CS) operation, three pulse bound-state (BS) soliton operation, and noise-like pulse (NLP) operation around 1531 nm are observed from 80 mW to 147 mW in an EDFL. The experimental results demonstrated that CrS as a promising 2D material has tremendous potential in designing ultrafast photonics device.
铁磁半导体硫化铬（CrS）作为过渡金属硫族化合物（TMC）的一员，理论上具有0.45电子伏特的窄带隙值，并已应用于光电领域。然而，目前尚未对CrS在超快光纤激光器中的应用进行研究。在这项工作中，通过在锥形光纤上沉积纳米片成功制备了基于CrS的可饱和吸收体。在掺铒光纤激光器中，在80毫瓦至147毫瓦的功率范围内观察到了围绕1531纳米的传统孤子（CS）运转、三脉冲束缚态（BS）孤子运转和类噪声脉冲（NLP）运转。实验结果表明，CrS作为一种有前景的二维材料，在设计超快光子器件方面具有巨大潜力。
