XU Jun-bo, CAO Yun, YANG Ning, et al. 80×40 Gbit/s DWDM system and 800 km transmission experiment without electronic regeneration[J]. 2005,(5):9-12. DOI: 10.13756/j.gtxyj.2005.05.002.
This paper introduced the 80×40 Gbit/s dense wavelength dvision multiplexing(DWDM) system developed by FiberHome. It is first system in China and FiberHome holds all intelligence property of it. The system employs distributed Raman amplification
superFEC and tributary transparent multiplex (TTM) technologies. The transmission experiment of 80×40 Gbit/s DWDM system using NRZ code over 800 km G.652 fiber line was carried out .The test results show that the optical path penalty is less than 2 dB and the system runs error free for continuous 60 hours after 800 km transmission.