Cyclone V SFP

I have designed Cyclone V transceiver board, by connecting directly from Cyclone V FPGA to SFP.

I have tried many ways to transmit and receive from SFP. But i can't receive the data.

May i know the steps to implement the SFP with Cyclone V.

Also let me know, if any other IP need to implement SFP using Cyclone V.