Bidirectional hybrid optical communication system based on wavelength division multiplexing for outdoor applications

• Published in: Optical and quantum electronics Vol. 53; no. 10
• Main Authors: Abdulsatar, Sinan M., Saleh, Mohammed A., Abass, A. K., Ali, M. H., Yaseen, Mohammed Ali
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.10.2021; Springer Nature B.V
• Subjects: Bragg gratings; Characterization and Evaluation of Materials; Communications systems; Computer Communication Networks; Data transmission; Electrical Engineering; Fiber optics; Hybrid systems; Lasers; Optical communication; Optical Devices; Optical switching; Optics; Photonics; Physics; Physics and Astronomy; Switching theory; Wave division multiplexing; Wavelength division multiplexing; Hybrid optical communication; Fiber optic communication; Free space optic
• ISSN: 0306-8919; 1572-817X
• DOI: 10.1007/s11082-021-03252-9

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.