40-Gbit/s TDM transmission technologies based on ultra-high-speedICs

摘要

This paper presents 40-Gbit/s time division multiplexing (TDM)ntransmission technologies based on 0.1-Μm-gate-length InP highnelectron mobility transistor IC's and a scheme for upgrading toward anterabit-per-second capacity system. A 40-Gbit/s, 300-km, in-linentransmission experiment and a dispersion-tolerant 40-Gbit/s duobinaryntransmission experiment are described as 40-Gbit/s single carrier systemnapplications on dispersion-shifted fiber. An ultra-high-speed receivernconfiguration using a high-output-power photodiode is introduced tonrealize fully electrical receiver operation beyond 40 Gbit/s. Thenhigh-sensitivity operation of the optical receiver (-27.6ndBm@BER=10-9) is demonstrated at a data bit rate of 50 Gbit/snfor the first time using a unitraveling carrier photodiode. A densenwavelength division multiplexing (DWDM) system operating up to terabitsnper second can be easily realized on a zero-dispersion flattenedntransmission line using ultra-high speed TDM channels of 40 Gbit/s andnbeyond. An experiment demonstrates 1.04-Tbit/s DWDM transmission basednon 40-Gbit/s TDM channels with high optical spectrum density (0.4nbit/s/Hz) without dispersion compensation