Spectroscopic and radiation-resistant properties of Er,Pr:GYSGG laser crystal operated at 2.79 μm

Zhao Xu-Yao^{1, 2}, Sun Dun-Lu^{1, †}, Luo Jian-Qiao^{1, 3}, Zhang Hui-Li^{1, 2}, Fang Zhong-Qing^{1, 2}, Quan Cong^{1, 2}, Li Xiu-Li¹, Cheng Mao-Jie¹, Zhang Qing-Li¹, Yin Shao-Tang¹

(color online) Absorption spectra of Er,Pr:GYSGG crystal before and after 100 Mrad gamma-ray irradiation. Insets: enlarged absorption coefficient curve around 970 and 2790 nm.