Ultrafast soliton dynamics from an all-fiber self-starting thulium-doped Mamyshev oscillator

作     者：Shi, Zhifeng Sun, Shijie Wang, Qingbo Liu, Yan-Ge Wang, Zhi Wang, Pan 

作者机构：Institute of Modern Optics Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology Nankai University Tianjin300350 China 

出 版 物：《Optics Letters》 (Opt. Lett.)

年 卷 期：2025年第50卷第3期

页      面：1025-1028页

核心收录：

学科分类：070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0802[工学-机械工程] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China (62205159  62375143  12274238) 

主　　题：Pulse repetition rate 

摘      要：The generation of high-performance pulses in the 2 µm wavelength range has been widely considered. A Mamyshev oscillator featuring cascaded spectral broadening and offset spectral filtering is an excellent platform for generating high-energy femtosecond pulses. In order to make up for the shortcomings of complex structure and unsuitability for practical use, in this Letter, we present an experimental investigation of an all-fiber thulium-doped Mamyshev oscillator that enables self-starting operation and generates high-performance pulses. The oscillator emits pulses with energy of up to 7.5 nJ, which can be compressed to 350 fs. Furthermore, we investigate the nonlinear dynamics of the multi-pulse state, such as soliton molecules and high-order harmonic mode-locking. The oscillator generates 130th order harmonic mode-locking that corresponds to the repetition rate of 588 MHz, and the signal-to-noise ratio exceeds 60 dB. © 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.