Demonstration of Overlay UMTS signal transmission on a Gigabit Passive Optical Network (PON)

摘要

In order to share access infrastructure between mobile and access network, integration of wireless services on optical access network with Radio over Fibre (RoF) technologies is a potential solution for operators. In this paper, we propose an overlay Universal Mobile Telecommunication System (UMTS) or third generation (3G) signal transmission on a Gigabit Passive Optical Network. Main advantages of this transmission scheme are the use of only one laser to feed the signal and one photodiode to receive it. A trade-off between extinction ratio and laser linearity has been found and the penalty induced by the 3G signal overlay is small. We demonstrate a 1x32 PON over 20km, which can distribute UMTS signal for remote base station, and binary signal at 1.25Gbit/s for others users.