Abstract
The simulation and investigation of a 32 × 10 Gb/s WDM all-optical bidirectional hybrid communication system for outdoor applications is presented in this article via multidisciplinary softwares. In order to track the system condition, a strain sensor based on fiber Bragg grating (FBG) is integrated in-line with the fiber optic link (FO-link). Then, a free space optical link (FSO-link) with 4-channel is simulated to act backup or rescue to the FO-link in the event of disaster or bombing. The FO-link is working well until the strain reach to 180 με, after that the FO-link has degraded. Therefore, an optical switch is incorporated in between these systems (FO-link and FSO-link) to turn-on the FSO-link which act as a backup system to FO-link and maintains the continuity of the data transmission. According to the hybrid link results, there is an efficient enhancement in the Q-factor as compared with the FO-link even when there is heavy rain.