Fiber Optic cables - Essay Example
The phenomenon of guiding light through bent glass has been early given by Leonardo DaVinci in one of his notebooks. But, he has not been able to verify this assertion. What is known for certain is that total internal reflection of light in a beam of water, basically guided light, and was given by the physicist John Tyndall in either 1854 or 1870, depending upon which reference you consult. Tyndall showed that light could be bent around a corner while it traveled through a jet of pouring water. Using light for communications came after this. . In 1934 the first patent on guided optical communications over glass was obtained by AT &T. unfortunately, no materials were available at that time to fabricate a glass (or other type of transparent material) fiber optic cable with sufficiently low attenuation to make guided optical communications possible.
