History of Fiber Optics

HISTORY OF FIBER OPTICS * In 1840, Daniel Colladon and Jacques Babinet showed the standard of controlling light by refraction. * It was trailed by an open showing by John Tyndal in 1852. In 1870, Tyndal expounded on the property of all out inward appearance in his book about the idea of light. * In 1880, Alexander Graham Bell and Sumner Tainter designed the Photophone, a gadget equipped for transmitting sound waves over light emission is considered as mankind’s first endeavor to utilize light for conveying data. * In 1930, Clarence Hansel and John Logie Baird showed freely picture transmission utilizing fiber. * In 1940’s, Heinrich Lamm effectively transmitted pictures through a solitary glass fiber utilized for interior clinical assessments. * In 1951, Harold Hopkins and Narinder Singh Kapany tried different things with light transmission through groups of fiber.Their study prompted the improvement of the adaptable fiberscope, which is utilized in the clinical field. I t was additionally Kapany who instituted the term fiber optics in 1956. * In 1953, Charles Townes and two of his alumni understudies built up the MASER (Microwave Amplification by Stimulated Emission of Radiation), and in 1960, Theodore Maiman built up the principal LASER ( Light Amplification by Stimulated Emission of Radiation). In 1967, Charles Kao and George Bockham of the Standard Telecommunications Laboratory proposed the cladded fiber links. * In 1970, Robert Maurer, Donalk Keck and Kapron of Corning Glass built up the main fiber optics with misfortunes under 2dB/Km. * In 1980’s, misfortunes in fiber optics were decreased to as low as 0. 16 dB/Km. This is because of the advancement of top notch light sources and locators. * In 1990’s, the photonic precious stone fiber was built up that can convey high force than the regular silica based filaments.