One of our new project requirement is to transmit 100MHz clock over optical fiber, 1550nm, single mode fiber. transmitter board have 100MHz pure clean clock source with phase noise -130dBc/Hz at 100Hz offset, this clock need to transmit using conventional SFP module. is it possible to transmit clock over SFP module? we have never come across clock over SFP, normally we used to transmit data from FPGA SERDES. so please suggest us whether we can transmit 100MHz clock over SFP, we can convert first sine wave clock to CML level which SFP accepts using some level converters.