The Optical Fiber

Optical fiber is now the backbone of present days' telecommunications network. The basic fiber material is high purity silica glass. Most of the technologies are now perfected and research is now directed towards new highly transparent materials for getting large bandwidth. Year 2015 has been proclaimed as the International Year of Light and Light-based Technologies by The United Nations General Assembly in order to campaign for optics and photonics research around the globe. Evolution of fiber optics and recent progress will be reviewed and presented.