Birefringence-Managed Normal-Dispersion Fiber Laser Delivering Energy-Tunable Chirp-Free Solitons  

作　　者：Dong Mao Zhiwen He Qun Gao Chao Zeng Ling Yun Yueqing Du Hua Lu Zhipei Sun Jianlin Zhao 

机构地区：[1]Northwestern Polytechnical University,School of Physical Science and Technology,Key Laboratory of Light Field Manipulation and Information Acquisition,Ministry of Industry and Information Technology,Shaanxi Key Laboratory of Optical Information Technology,Xian,China 7101292 [2]Nanjing University of Posts and Telecommunications,College of Electronic and Optical Engineering College of Microelectronics,Nanjing,China 210046 [3]Aalto University,Department of Electronics and Nanoengineering and QTF Centre of Excellence,Aalto,Finland

出　　处：《Ultrafast Science》2022年第4期9-20,共12页超快科学（英文）

基　　金：This work was supported by the National Key R&DProgram of China(2017YFA0303800);National Natural Science Foundation of China(11874300,61805277);the Fundamental Research Funds for the Central Universities(3102019JC008);the Natural Science Foundation of Shaanxi Province(2021JC-09,2019JQ-447).

摘　　要：Chirp-free solitons have been mainly achieved with anomalous-dispersion fiber lasers by the balance of dispersive and nonlinear effects,and the single-pulse energy is constrained within a relatively small range.Here,we report a class of chirp-free pulse in normal-dispersion erbium-doped fiber lasers,termed birefringence-managed soliton,in which the birefringence-related phasematching effect dominates the soliton evolution.Controllable harmonic mode locking from 5 order to 85 order is obtained at the same pump level of~10 mW with soliton energy fully tunable beyond ten times,which indicates a new birefringencerelated soliton energy law,which fundamentally differs from the conventional soliton energy theorem.The unique transformation behavior between birefringence-managed solitons and dissipative solitons is directly visualized via the singleshot spectroscopy.The results demonstrate a novel approach of engineering fiber birefringence to create energy-tunable chirpfree solitons in normal-dispersion regime and open new research directions in fields of optical solitons,ultrafast lasers,and theirapplications.

关 键 词：fiber TUNABLE PUMP 

分 类 号：TN248[电子电信—物理电子学]