An InGaAs Photodiode packaged directly with InP DFB Laser to offer a cohesive RFoF system in a ruggedized hermetic package. This package allows a user to connect directly to the precision SMA connector and begin transmitting and receiving over optical fiber. This unit only needs DC bias. The SMA connector is AC- coupled. Two fiber optic cables allow the InGaAs photodiode and InP laser to be connected at the same time to transmit or receive. This device comes with multiple build configurations for various operating frequencies.