ZDNet is reporting that Nokia has recently shown off technology that is 1,000 time faster than Google Fiber. [At the time of writing Google Fiber delivers 1Gb/s throughput]
This uses Probabilistic Constellation Shaping (PCS), which is an adaption of Quadrature Amplitude Modulation (QAM). Nokia Bell Labs and Deutsche Telekom T-Labs alongside the Technical University of Munich (TUM) ran the tests, and passed data at close to the current theoretical maximum for a fiber link, according to Nokia’s press release.