With exponential traffic growth projected from mobile and cloud applications, optical networks powering the Internet backbone will require orders-of-magnitude transmission capacity gains. At the core of our innovation in this area are agile digital signal processing (DSP)-based approaches, including digital Nyquist spectral shaping, DSP-based nonlinearity compensation and advanced soft-decision forward error correction (FEC) that optimize spectrum utilization, maximize transmission reach and provide data rate flexibility. Our recent world-leading achievements in this area include the first real-time transmission of a 1Tb/s Nyquist superchannel over 7,200km using only erbium-doped fiber amplifier (EDFA) repeaters, proving that an ultra high-speed 1Tb/s optical superchannel can have transoceanic reach.

Keyword Tags: optical transmission