Cascaded optical band pass filters in radio-over-fiber link

In this paper, we propose and experimentally verify that optical filters with fast linear roll-off property, when incorporated in an optical transmitter, can minimize not only the fading effect commonly observed in high bit rate, long distance fiber links, but also improve the link Carrier-to-Noise ratio, and at the same time can maintain the 3^rd order inter-modulation distortions at a relatively low level.