Kerr-lens mode-locked Ho:CALYO laser at 2.1 µm

作     者：Wang, Jing Yao, Weichao Liu, Jian Xu, Xiaodong Xu, Jun Leng, Yuxin 

作者机构：State Key Laboratory of Ultra-intense Laser Science and Technology Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai201800 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China Jiangsu Key Laboratory of Advanced Laser Materials and Devices Jiangsu Normal University Xuzhou221116 China School of Physics Science and Engineering Institute for Advanced Study Tongji University Shanghai200092 China 

出 版 物：《Optics Express》 (Opt. Express)

年 卷 期：2025年第33卷第8期

页      面：18017-18023页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 070204[理学-等离子体物理] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Key Research and Development Program of China (2023YFA1608504, 2023YFB3507401, 2022YFA1604401) National Natural Science Foundation of China (12388102, 61925507, 22227901) Strategic Priority Research Program of the Chinese Academy of Sciences (XDB0890101) Shanghai Municipal Science and Technology Major Project Natural Science Foundation of Jiangsu Province (BK20230685) 

主　　题：Pulse repetition rate 

摘      要：We report on a Kerr-lens mode-locked Ho laser operating at 2.1 µm, based on a disordered structure crystal Ho:CALYO. The laser-generated ultrashort pulses with a pulse duration of 177 fs and an average output power of 0.81 W at a repetition rate of 90 MHz, with an optical-to-optical efficiency of 11%. By optimizing the system for shorter pulse durations, we achieved pulses as short as 166 fs, though at a reduced output power of 0.18 W. The pulse duration and output power limitations were analyzed and discussed. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.