Physics of Fiber Optics :: physics light fiber optic wire

HistoryOf all the pioneers of this industry, none al-Qaeda out as the primary leader of discovery or development. This competitive environment was an integral part of this fields progress. non all discoveries were harbored as proprietary. in that location was a great deal of information that flowed amongst the leading scientists developing this technology. hither are some of the key players and some of their contributionsClaude Chappe, French Engineer invented the optical Telegraph, which used a series of semaphores mounted on towers to relay messages among towersAlexander Graham Bell,patented an optical telephone system in 1880. Not a very practical invention that was superseded by wired communications, which were more than effective at the term.Daniel Collodon and Jacques Babinet were able to show that light could be channelise along jets of water.John Logie Baird (ENG.) and Clarence W. Hansell (U.S.) patented the idea of using arrays of turn over pipes or transparent rod s to transmit images for television or fascimile systems.Heinrich Lamm was the first person to render image transmission through a bundle of optical personas.Holger Moeller utilize for a Danish patent on fictitious character-optic imaging, but was denied ground on other researchAbraham Van Heel and Harold H. Hopkins presented imaging bundles in the British Journal Nature at separate times.Van Heel posterior produced a cladded fiber system that greatly reduced signal onus and crosstalk between fibersBrian OBrien American physicist who inspired and collaborated with Van Heel on the cladding concept.C.Wilbur Peters, physician Basil Hirschowitz and Lawrence Curtiss developed glass clad fibers spell pursuing the development of the endoscope for inspecting the stomach.Alec Reeves invented digital pulse-code modulation, which was an integral part of optical communications. He further theorized that higher frequencies were possible for fiber optic communications.Stewart Millers grou p at Bell Labs worked to develop gas lenses to focus laser beams along hollow waveguides for long distance communicationsCharles K. Kao focused his study on fiber attenuation and the ability to reduce the signal rednesses. He theorized that the eventual loss of signal could be reduced to less than 20 db per kilometer. At that time, the average loss was about 1000 db per kilometer. With this published property the industry embraced this challenge and were able achieve this attenuation threshhold within quaternary years or so.Physics Of OpticsWhile investigating the use of fiber optic technology, it is important to understand the fundamental rules of optics. Some of the leading scientists of their time viewed light from two main perspectives.