基于MoS/SiO可饱和吸收体的锁模掺铒光纤激光器

Mode-Locked Er-Doped Fiber Laser by Using MoS/SiO Saturable Absorber.

作者信息

Li Lu, Lv Ruidong, Chen Zhendong, Wang Jiang, Liu Sicong, Ren Wei, Wang Yonggang

机构信息

School of Science, Xi'an University of Posts and Telecommunications, Xi'an, 710121, China.

School of Physics and information Technology, Shaanxi Normal University, Xi'an, 710119, China.

出版信息

Nanoscale Res Lett. 2019 Feb 19;14(1):59. doi: 10.1186/s11671-019-2888-z.

DOI:10.1186/s11671-019-2888-z

PMID:30783868

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6381198/

Abstract

The two-dimensional (2D) layered material MoS has attracted numerous attentions for electronics and optoelectronics applications. In this work, a novel type of MoS-doped sol-gel glass composite material is prepared. The nonlinear optical properties of prepared MoS/SiO composite material are measured with modulation depth (ΔT) of 3.5% and saturable intensity (I) of 20.15 MW/cm. The optical damage threshold is 3.46 J/cm. Using the MoS/SiO composite material as saturable absorber (SA), a passive mode-locked Er-doped fiber (EDF) laser is realized. Stable conventional soliton mode-locking pulses are successfully generated with a pulse width of 780 fs at the pump power of 90 mW. In the pump power range of 100-600 mW, another stable mode-locking operation is obtained. The pulse width is 1.21 ps and the maximum output power is 5.11 mW. The results indicate that MoS/SiO composite materials could offer a new way for optical applications.

摘要

二维（2D）层状材料二硫化钼（MoS）在电子和光电子应用方面已引起了广泛关注。在本工作中，制备了一种新型的MoS掺杂的溶胶 - 凝胶玻璃复合材料。所制备的MoS/SiO复合材料的非线性光学特性通过调制深度（ΔT）为3.5%和饱和强度（I）为20.15 MW/cm进行测量。光学损伤阈值为3.46 J/cm²。将MoS/SiO复合材料用作可饱和吸收体（SA），实现了被动锁模掺铒光纤（EDF）激光器。在90 mW的泵浦功率下成功产生了脉宽为780 fs的稳定常规孤子锁模脉冲。在100 - 600 mW的泵浦功率范围内，获得了另一种稳定的锁模运行状态。脉宽为1.21 ps，最大输出功率为5.11 mW。结果表明，MoS/SiO复合材料可为光学应用提供一种新途径。