A Study & Review of Various Optical Linearization Techniques for Next Generation RoF Networks

Radio-over-Fiber (RoF) links has become a promising technique to deliver effective communication as it offers broad bandwidth and low losses. To enhance the link performance, numerous techniques have been reported. This article reviews techniques used to linearize RoF links i.e. optical and electrical linearization. A comparison table has been drawn considering bandwidth, non-linearity, losses, link complexity & cost. It is found that optical linearization is the most suitable technique for the linearization of link. Hence, this technique is further discussed and its different types have been explored.