Future of Transmission Fiber

In 2010, most high-capacity transmission experiments have been demonstrated over low-loss and/or low-nonlinearity dispersion unshifted fibers. Not only the research interest but the discussions of actual deployment of such linearity-enhanced fibers as well were starting to increase network capacity with systems based on greater than 100-Gb/s symbol rate. In addition, evolutional optical fibers that dramatically increase capacity in a single fiber, including multicore fibers and photonic crystal fibers, have been proposed.