197 1 year transferred to Chengdu Radio No.2 Factory as a technician. 1978 was admitted to Chengdu Institute of Telecommunications Engineering (now Chengdu University of Electronic Technology) as a graduate student in the Department of Optoelectronic Technology. 198 1 year obtained the master's degree in engineering, and then stayed in school. Among them, 1988 to 1990 studied at Soften University in England. 1987, associate professor, 1993, 1994 to 200 1,1,deputy director of the institute of applied physics, University of Electronic Science and Technology of China, and now he is a professor and doctoral supervisor in the School of Optoelectronic Information.