The development of technologies for optical access networks and user demand for more bandwidth has enabled consider increasing rates and improve the current coverage of access networks. Currently there are various ways to achieve this goal, one relates to the use of modulations in the signal processing in both the OLT and the ONU. This process has already begun studying for transport networks with highly complex formats and costly implementation. DPSK (Diferencial Phase Shift Key) modulation has been identified for possible implementation in the context of access. This paper describes how we implement to 10Gpbs and testing with 2 different types of fibers.