基于ReSe_(2) 可饱和吸收体的基频和高次谐波掺铒光纤激光器  

Fundamental and High-Harmonic Erbium-DopedFiber Lasers Based on ReSe_(2) Saturable Absorbers

作　　者：赵子霆 陈丰 韩克祯 ZHAO Ziting;CHEN Feng;HAN Kezhen(School of Physics and Optoelectronic Engineering,Shandong University of Technology,Zibo 255049,China)

机构地区：[1]山东理工大学物理与光电工程学院,山东淄博255049

出　　处：《聊城大学学报(自然科学版)》2025年第2期190-196,共7页Journal of Liaocheng University:Natural Science Edition

基　　金：山东省自然科学基金项目(ZR2021QE178)资助。

摘　　要：二维材料作为可饱和吸收体在光纤激光器领域的应用引起了人们极大的兴趣。过渡金属硫化物(TMDs)作为二维材料中的一类,因其较好的光电特性和环境稳定性已经被广泛用于超快光纤激光器中。二硒化铼(ReSe_(2))作为TMDs中的一种,通过一系列表征手法预测其具有良好的非线性光学效应。本实验通过液相剥离法制备ReSe_(2)纳米片溶液,并与聚乙烯醇(PVA)溶液混合后制成1 mm×1 mm的膜片贴在光纤跳线头的端面形成可饱和吸收体。该膜片的调制深度和饱和强度分别为8.8%和4.9 MW/cm^(2)。将该可饱和吸收体集成进光纤腔中,在泵浦功率为143.6 mW、色散为-0.682 ps 2时,获得了稳定的传统孤子。进一步调整偏振态和泵浦功率,获得38阶稳定的谐波锁模运转。实验结果表明ReSe_(2)具有良好的脉冲调制能力,在掺铒光纤激光器领域有一定的应用价值。The application of two-dimensional(2D)materials as saturable absorbers(SA)in fiber lasers has attracted great interest.Transition metal disulfide compounds(TMDs),as a class of 2D materials,have been widely used in ultrafast fiber lasers due to their better optoelectronic properties and environmental stability.Rhenium diselenide(ReSe_(2)),as one of the TMDs is predicted to have good nonlinear optical effects by a series of characterization techniques.In this experiment,the prepared ReSe_(2) solution was dried and made into a 1 mm×1 mm film affixed to the end face of the fiber optic patch cord head to form a SA.The modulation depth and saturable absorption intensity of the diaphragm were 8.8%and 4.9 MW/cm^(2).The saturable absorber was integrated into the fiber cavity and stable conventional solitons were obtained at a dispersion of-0.682 ps 2 and a pump power of 143.6 mW.After slightly adjusting the polarization state and pump power,the conventional soliton transformed into a 38th-order stable harmonic mode-locked operation.The experimental results show that ReSe_(2) has good pulse modulation capability and has certain applications in Erbium-doped fiber lasers.

关 键 词：二硒化铼 过渡金属硫化物 传统孤子 高阶锁模 

分 类 号：TN248[电子电信—物理电子学]