From the Revolution to the Evolution: The Change in the Character of Development of Fiber Optic Communications Technology — And the Record Performance of 100 Gbit/s Systems as a Marker of this Change

The performance of fiber optic communication systems reached its maximum several years ago with the introduction of 100 Gbit/s systems (100G). The further development of communication systems is going in such directions as complicating the formats of modulation, increasing the flexibility of tuning the occupied spectrum and increasing the speed of transmission over the carrier. This is advantageous for short lines, but leads to a significant reduction in transmission range and performance. Thus, the record performance of the 100G systems can be considered a marker for the transition from the revolutionary stage of the development of fiber-optic communication technologies to the evolutionary stage of their development.