Study on the dynamic behaviors and chaos synchronization communication of semiconductor lasers subject to filtered optical feedback 20 Jiang Ning1, Liu Ding2, Xue Chenpeng1, Qiu Kun1 (1. School of Communication and Information Engineering, University of Electronic Science and Technology, Chengdu 611731; 2. School of Electronic Engineering, Sichuan Normal University Chengdu College, Chengdu 611745) 25 Abstract: The stable output condition for the semiconductor laser subject to filtered optical feedback (FOFSL) is theoretically analyzed firstly; subsequently, a comparison investigation on the dynamic behaviors of the