High-efficiency 100-W Kerr-lens mode-locked Yb:YAG thin-disk oscillator

Hongshan Chen; Lisong Yan; Heyan Liu; Jingjie Hao; Tingting Yang; Hongyu Liu; Jin Zhang; Quanming Li; Hailin Wang; Guangzhi Zhu; Xiao Zhu; Hongwen Xuan; Qing Wang; Jinwei Zhang

doi:10.3389/fphy.2023.1191010

Frontiers in Physics (Apr 2023)

High-efficiency 100-W Kerr-lens mode-locked Yb:YAG thin-disk oscillator

Hongshan Chen,
Lisong Yan,
Heyan Liu,
Jingjie Hao,
Tingting Yang,
Hongyu Liu,
Jin Zhang,
Quanming Li,
Hailin Wang,
Guangzhi Zhu,
Xiao Zhu,
Hongwen Xuan,
Qing Wang,
Jinwei Zhang

Affiliations

Hongshan Chen: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Lisong Yan: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Heyan Liu: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Jingjie Hao: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Tingting Yang: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Hongyu Liu: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Jin Zhang: GBA Branch of Aerospace Information Research Institute, Chinese Academy of Sciences, Guangzhou, China
Quanming Li: GBA Branch of Aerospace Information Research Institute, Chinese Academy of Sciences, Guangzhou, China
Hailin Wang: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Guangzhi Zhu: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Xiao Zhu: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
Hongwen Xuan: GBA Branch of Aerospace Information Research Institute, Chinese Academy of Sciences, Guangzhou, China
Qing Wang: School of Optics and Photonics, Beijing Institute of Technology, Beijing, China
Jinwei Zhang: School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China

DOI: https://doi.org/10.3389/fphy.2023.1191010
Journal volume & issue: Vol. 11

Abstract

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We demonstrate a Kerr-lens mode-locked femtosecond Yb:YAG thin-disk oscillator and investigate the approach to increase the optical-to-optical efficiency based on the scheme of direct multiple passes of the laser beam through the thin-disk medium. With twelve passes through the thin disk, 266-fs pulses were delivered from the oscillator with an average power of 105.6 W at a repetition rate of 20 MHz. The corresponding optical-to-optical efficiency is 31.1%, which is, to the best of our knowledge, the highest efficiency of any mode-locked thin-disk oscillator with pulse duration below 300 fs. This demonstration paves the way to even more efficient mode-locked femtosecond thin-disk oscillators, and provides an excellent laser source for the applications such as non-linear frequency conversion and high-precision industrial processing.

Published in Frontiers in Physics

ISSN: 2296-424X (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Physics
Website: https://www.frontiersin.org/journals/physics

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