40 Gbit/s high sensitivity optical receiver withuni-travelling-carrier photodiode acting as decision IC driver

The authors demonstrate a 40 Gbit/s simple optical receiver that uses a uni-travelling-carrier photodiode as a decision IC driver. The photodiode drives the decision circuit directly with 1 Vp-p without any electrical amplifier. Receiver sensitivity of –27.8 dBm was obtained at 40 Gbit/s.