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GaSe saturable absorber for mode-locked Yb-doped fiber laser at 1.04???μm
摘要： Transition-metal dichalcogenides, such as tungsten disulfide (WS2) and molybdenium disulfide (MoS2), are highly anisotropic layered materials and have attracted growing interest from basic research to practical applications due to their exotic physical property that may complement graphene and other semiconductor materials. GaSe nanosheets are found to exhibit broadband nonlinear saturable absorption property, and saturable absorbers are fabricated by depositing GaSe nanosheets on side-polished fibers. Attributing to the weak evanescent field and long interaction length, the GaSe nanosheets are not exposed to large optical intensity, which allows the saturable absorber to work at the high-power regime. The saturable absorbers are used to mode locked dispersion-managed soliton fiber lasers.
关键词： Dispersion-managed soliton,Fiber lasers,Mode-locked,GaSe
更新于2025-09-23 15:21:01
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[IEEE 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Huangshan, China (2019.8.5-2019.8.8)] 2019 18th International Conference on Optical Communications and Networks (ICOCN) - Dispersion-Managed Soliton Molecules in An All-Fiber Mode-Locked Fiber Laser With Near Zero Dispersion
摘要： Characterized by particle-like behaviors, soliton molecules interesting further unveil vivid multi-soliton dynamics and the research pulse-interaction scenarios community of ultrafast fiber lasers. Here, we report the formation of dispersion-managed solitons (DMSs) in an all-fiber laser passively mode-locked by a 45° tilted fiber grating (45° TFG) near the zero-dispersion regime. Particularly, typical DMS singlets are observed, possessing a broadband and smooth spectral shape. reinforced Besides, on stretching-compressing process during the pulse propagation, various multi-pulse DMS molecules are also discovered. Moreover, transient soliton dynamics of dual-pulse and triple-pulse DMS molecules covering the timescale over hundreds of round trips are illustrated based on dispersive Fourier transformation (DFT) technique. The investigation of multi-soliton compounds, caused by direct soliton interaction, probably paves access to the explorations of nonlinear dynamics in mode-locked lasers.
关键词： mode-locked fiber laser,45° tilted fiber grating,soliton molecules,dispersion-managed soliton
更新于2025-09-16 10:30:52