Photonic Integrated Receiver for 40 Gbit/s Transmission
01 January 2002
A novel 40 Gbit/s optical receiver is presented. The device consists of a waveguide photodiode integrated with a semiconductor amplifier. The receiver has a small signal bandwidth of 39 GHz and a conversion gain of more than 800 Volts per Watt. A back-to-back sensitivity of -17 dBm has been demonstrated for non-return to zero data transmission at 40 Gbit/s. A sensitivity of -32 dBm or 110 photons/bit has been realized for 40 Gbit/s return to zero transmission with an erbium doped fiber preamplifier and an optical filter.