Radio on multimode fiber systems based on VCSELs with external light injection technique

A radio on multimode fiber (MMF) system based on 1.55 /spl mu/m vertical cavity surface emitting lasers (VCSELs) and external light injection technique is proposed and demonstrated. Low error vector magnitude (EVM), third order intermodulation distortion to carrier ratio (IMD/sub 3//C) and bit error rate (BER) values were obtained in our proposed radio on MMF systems. Using VCSELs as optical sources in radio on MMF systems are very attractive, as they are relatively simple to fabricate and potentially low cost. Such a proposed radio on MMF system is suitable for the short-haul microwave optical link.