Spatiotemporal nonlinear dynamics in multimode fiber laser based on carbon nanotubes  

作　　者：Jingxuan Sun Yachen Wang Congyu Zhang Lijun Xu Bo Fu 

机构地区：[1]Key Laboratory of Precision Opto-Mechatronics Technology,School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China [2]Key Laboratory of Big Data-Based Precision Medicine,Ministry of Industry and Information Technology,School of Engineering Medicine,Beihang University,Beijing 100191,China

出　　处：《Frontiers of physics》2024年第5期179-184,共6页物理学前沿（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.62071016);the State Key Laboratory of Advanced Optical Communication Systems Networks,China;the Academic Excellence Foundation of BUAA for PhD Students.

摘　　要：We investigated 1-μm multimode fiber laser based on carbon nanotubes,where multiple typical pulse states were observed,including Q-switched,Q-switched mode-locked,and spatiotemporal mode-locked pulses.Particularly,stable spatiotemporal mode-locking was realized with a low threshold,where the pulse duration was 37 ps and the wavelength was centred at 1060.5 nm.Moreover,both the high signal to noise and long-term operation stability proved the reliability of the mode-locked laser.Furthermore,the evolution of the spatiotemporal mode-locked pulses in the cavity was also simulated and discussed.This work exhibits the flexible outputs of spatiotemporal phenomena in multimode lasers based on nanomaterials,providing more possibilities for the development of high-dimensional nonlinear dynamics.

关 键 词：spatiotemporal mode-locking multimode fiber saturable absorber ultrafast laser 

分 类 号：TN248[电子电信—物理电子学] TB383[一般工业技术—材料科学与工程]