Fiber Optics :: essays research papers fc

Fiber OpticsFiber Optic Cable Facts"A relatively new technology with vast potency importance, fiber optics is thechanneled transmission of light finished hair-thin glass fibers." Less expensive than copper cables Raw material is silica sand Less expensive to guard If damaged, restoration time is faster(although more determinationrs are affected) Backbone to the Information SuperhighwayInformation (data and voice) is patrimonial through the fiber digitally bythe use of high speed LASERs (Light Amplification through the Simulated Emissionof Radiation) or LEDs (Light Emitting Diodes). from each one of these methods create ahighly focused beam of light that is cycled on and off at very high speeds.Computers at the transmitting end deepen data or voice into "bits" ofinformation. The information is then sent through the fiber by the presence, orlack, of light. Computers on the receiving end convert the light back into dataor voice, so it can be used.ORIGIN OF qual ity OPTICSInformation (data and voice) is transmitted through the fiber digitally bythe use of high speed LASERs (Light Amplification through the Simulated Emissionof Radiation) or LEDs (Light Emitting Diodes). Each of these methods create ahighly focused beam of light that is cycled on and off at very high speeds.Computers at the transmitting end convert data or voice into "bits" ofinformation. The information is then sent through the fiber by the presence, orlack, of light. So, all of the data is sent light pulses. Computers on thereceiving end convert the light back into data or voice, so it can be used.All of this seems to be a very "modern" concept, and the technology we useis. The concept though, was the idea of Alexander Graham Bell in the late 1800s.He just didnt have a dependable light source... most days the sun doesntshine He thought of the idea that our voices could be transmitted by pulses oflight. The people who thought that audio, video, and other for ms of data couldbe transmitted by light through cables, were present day scientists. Most ofthe things that are possible today, Alexander Grahm Bell could never even havedreamed of.Although the opening move of lightwave communications occurred to AlexanderGraham Bell (who invented the telephone), his ideas couldnt be used until theLASER or LED had been invented. Most of these advances occurred in the 1970s,and by 1977 glass-purifying and other fiber-optic manufacturing techniques had similarly reached the stage where interoffice lightwave communications were possible.With further technological development, many intercity routes were in operationby 1985, and some transoceanic routes had been completed by 1990.