the Director Foundation of State Key Laboratory of Pulsed Power Laser Technology(No.SKL2022ZR03);the Independent Innovation Science Foundation of National University of Defense Technolo-gy(23-ZZCX-JDZ-44);the Young Doctoral Fund of the College of Electronic Engineering,NUDT(No.KY22C211);the Technology Domain Fund of 173 Project(Nos.2021-JCJQ-JJ-0284,and 2022-JCJQ-JJ-0237).
The widely tunable and high resolution mid-infrared laser based on a BaGa_(4)Se_(7)(BGSe)optical parametric oscillator(OPO)was demonstrated.A wavelength tuning range of 2.76–4.64μm and a wavelength tuning resolution...
The authors are grateful to the research group of Prof. Kenneth K. Y. Wong at The University of Hong Kong for their unselfish contribution to this paper. They are also grateful for the supports from the National Basic Research Program of China (973 Program) (No. 2010CB327606); the National Nature Science Foundation of China (Grant No. 61108007) and the Opened Fund of the State Key Laboratory on Integrated Optoelectronics.