The optical fibre communication systems course examines the techniques associated with signal transmission and detection process in optical medium. Topics include physics of optical fibre, fiber properties of dispersion, attenuation, and nonlinear effects on data transmission, electro-optical conversion devices for signal generation and detection, modulation techniques and implications, circuit considerations, overall system considerations including coupling, transmitter design, receiver design, noise properties of fiber, and multichannel transmission issues, coherent modulation properties of laser diodes, homodyne and heterodyne detection, light-wave networks such DWDM, FDM, TDM, and CDM, and their relative merits, optical network access, optical interconnection, and topological issues in optical switching.