Optical fiber communication systems, Elements of optical fiber communication links, Propagation of Light over Optical Fibers, Mechanisms of attenuation and dispersion. Optical cables, optical connector, splice and couplers. Optical Sources: LED, LASER Intensity modulation/ direct detection, coherent systems. Optical transmitters & amplifiers. Optical Detectors and Receivers, Optical Link Design: Limitations in bandwidth and distance due to attenuation and dispersion. Link budget calculations, Applications, Low BW/ Low bit rate to ultra-wide band/ Ultra high bit rate communication systems. Introduction to communication networks (LANs, MANs and WANs). The course includes lab works based on theory taught.