Improved receiver techniques for Radio over Multimode fiber systems

Multimode fiber links can offer a useful approach for low cost and short Radio over Fiber (RoF) systems. However, in these connections the distortion effects are higher than in a singlemode fiber system. These effects can be compensated by a suitable optical receiver. In this paper an improved receiver structure is investigated for Radio over Multimode fiber systems. N-QAM radio signal transmission is simulated and measured on multimode fiber connections. Several improved compensating reception methods are compared with simple detection. From the different improved methods and installations an optimum solution is chosen for Radio over Multimode Fiber systems.