Research about optic fiber is going on for years now, because we are still not able to use it at its best: the Technical University of Denmark noted that they hit a new transfer record, reaching about 43 Terabits per second (Tbps).
From 2009 to 2011 the Technical University of Denmark was the undisputed champion of the optic fiber transfer champion. In 2011 they lost their crown to the german Karlsruhe Institue of Technology, which reached 26Tbps.
After that, TUD kept working hard, and recently they published a new case study where they explain how they reacher the astonishing speed of 43Tbps, leaving their german friends far behind. 43Tbps means a bit less than 0.2ms to transfer 1TB of files.
This speed are obviously valid only in their test environment. These are gross numbers, without any actual transfer, nor a certification: not that any of this can't be add later, but for the moment we just have to wait. In the near future we might be using an even faster optic fiber, or at least the few lucky ones who have access to it.
Source:
MaximumPC via
Le Comptoir du Hardware.