Mainly engaged in optical fiber communication technology, optical fiber devices and other aspects of research, has participated in the photoelectric equalization technology of dynamic combination of signal damage in high-speed optical fiber communication transmission system, the basic theory and key technology research of OFDM optical signal transmission and signal processing, the theoretical analysis and experimental research of realizing stable output of multi-carrier light source with high signal-to-noise ratio based on IQ modulator frequency locking, and the research of multi-carrier light source suitable for terabit optical communication system. "Theoretical and experimental research on multi-carrier light source suitable for terabit optical communication system" and other national 863 projects, national natural science foundation projects, doctoral program fund projects in colleges and universities, Shenzhen science and technology research and development fund projects, Beijing University of Posts and Telecommunications young teachers fund projects. In addition, it has been supported by the excellent doctoral fund project of Beijing University of Posts and Telecommunications. Nearly 20 papers have been published, including more than SCI papers 10; Apply for two invention patents.