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

作　　者：赵绪尧 孙敦陆 罗建乔 张会丽 方忠庆 权聪 李秀丽 程毛杰 张庆礼 殷绍唐 

机构地区：[1]The Key Laboratory of Photonic Devices and Materials, Anhui Province, Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences [2]University of Science and Technology of China [3]State Key Laboratory of Pulsed Power Laser Technology, Electronic Engineering Institute

出　　处：《Chinese Physics B》2017年第7期173-177,共5页中国物理B（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(Grant No.2016YFB1102301);the National Natural Science Foundation of China(Grant Nos.51272254,61405206,and 51502292);the Open Research Fund of the State Key Laboratory of Pulsed Power Laser Technology,Electronic Engineering Institute,China(Grant No.SKL2015KF01)

摘　　要：We demonstrate the spectroscopic and laser performance before and after 100 Mrad gamma-ray irradiation on an Er,Pr：GYSGG crystal grown by the Czochralski method. The additional absorption of Er,Pr：GYSGG crystal is close to zero in the 968 nm pumping and 2.7-3 μm laser wavelength regions. The lifetimes of the upper and lower levels show faint decreases after gamma-ray irradiation. The maximum output powers of 542 and 526 mW with the slope efficiencies of 17.7% and 17.0% are obtained, respectively, on the GYSGG/Er,Pr：GYSGG composite crystal before and after the gammaray irradiation. These results suggest that Er,Pr：GYSGG crystal as a laser gain medium possesses a distinguished antiradiation ability for application in space and radiant environments.We demonstrate the spectroscopic and laser performance before and after 100 Mrad gamma-ray irradiation on an Er,Pr：GYSGG crystal grown by the Czochralski method. The additional absorption of Er,Pr：GYSGG crystal is close to zero in the 968 nm pumping and 2.7-3 μm laser wavelength regions. The lifetimes of the upper and lower levels show faint decreases after gamma-ray irradiation. The maximum output powers of 542 and 526 mW with the slope efficiencies of 17.7% and 17.0% are obtained, respectively, on the GYSGG/Er,Pr：GYSGG composite crystal before and after the gammaray irradiation. These results suggest that Er,Pr：GYSGG crystal as a laser gain medium possesses a distinguished antiradiation ability for application in space and radiant environments.

关 键 词：ER Pr：GYSGG crystal gamma-ray irradiation anti-radiation ability laser material 

分 类 号：O734[理学—晶体学]