High-efficiency Yb:YAG laser with a gradient-doped crystal at room temperature

Optics Express 2026 Open access

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Authors: Ziran Liu, Shengjie MA, Xiangyizheng Wu, Tingqing Cheng, Ling Zhang, Jinyun Gao, Qingli Zhang, Yuchong Ding, Haihe Jiang, Li Wang
DOI: 10.1364/oe.591950
Cited by: 2
References: 31

Abstract

is designed, and its laser performance is demonstrated in a laser diode single-end pumped configuration. Compared with the homogeneous-doped crystal, the laser performance of the gradient-doped crystal is significantly improved due to the reduced thermal effects. The maximum output power of 60.2 W with the maximum optical-to-optical conversion efficiency of 53.2% is obtained in continuous-wave operation at 1030 nm, and the corresponding slope efficiency is 61.4%. The results show that the gradient-doped Yb:YAG crystal has advantages of mitigating thermal effects and excellent gain performance, and it is proven that the gradient-doped Yb:YAG crystal is effective for high-efficiency output at room temperature.

Fields of Study & Subjects

Solid State Laser Technologies Photorefractive and Nonlinear Optics Optical properties and cooling technologies in crystalline materials

Publication details

Journal / source
Optics Express
Publisher
Optica Publishing Group
Volume
34
Issue
6
Pages
9556–9556
Publication date
27 February 2026
Language
EN