Researchers at Alcatel-Lucent’s Bell Labs have attained a record optical transmission of 606-Gbps line rate at high spectral efficiency with an optical orthogonal frequency-division multiplexing (OFDM) transponder running over a distance of 1,600 km of fiber. The system uses OFDM with PDM 32-QAM subcarriers and detects the entire 606-Gbps multiplex in a single coherent detection step.
The research reported in a paper presented at the recent European Conference and Exhibition on Optical Communication (ECOC) in Turin, Italy.
“This new optical transmission record is very impressive and state-of-the-art,” said Gee Rittenhouse, Head of Alcatel-Lucent Bell Labs Research. “But more meaningful is that these technologies represent the leading edge of a transformation in communications networks that will enable us to keep up with future demand.”http://www.alcatel-lucent.com
