In December 2019, the FCPD detector was published. The FCPD is an optoelectronic hybrid integrated by broadband InGaAs photodiode and low noise amplifier. The optical input port is a standard FC(face-contacted) fiber-optic connector. RF output port is an SMA-compatible connector matched by 50-ohm impedance.
FCPD has the advantages of large gain, low noise, high response, and wide temperature range. It is mainly used in radar information processing, electronic warfare, antenna testing, and other scenes.