When was fiber optics invented

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Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions. All rights reserved. Cisco Press. Join Sign In. Date: Apr 23, Chapter Description Vivek Alwayn discusses in this chapter the increasing demand of optical-fiber and its wide spread applications ranging from global networks to desktop computers.

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Small diameters make it practical to manufacture and install much longer lengths than for copper cables. In fact 12 kilometer continuous fiber optic cable lengths are common. Multimode cable lengths can be four kilometers or more, although most standards require a maximum length of 2km or less.

Multimode cable lengths are based on industry demand. Long lengths make fiber optic cable installation much easier and less expensive. Optical fiber cables can be installed with the same equipment used to install copper and coaxial cables, with some modifications due to the small size and limited pull tension and bend radius of optical cables.

Optical cables can typically be installed in duct systems in spans of 6, meters or more depending on the duct's condition, layout of the duct system and installation technique. The longer cables can be coiled at an intermediate point and pulled further into the duct system as necessary. System designers typically plan optical systems to will meet the growth needs for 15 to 20 year span.

Although sometimes difficult to predict, growth can be accommodated by installing spare fibers for future requirements. Installation of spare fibers today is more economical than installing additional cables later. Another advantage of fiber cables is their dielectric nature. Since fiber has no metallic components, it can be installed in areas with electromagnetic interference EMI , including radio frequency interference RFI.

Areas with high EMI include utility lines, power-carrying lines and railroad tracks. All dielectric cables are also ideal for areas of high lightening strike incidence.

The advance is based on fibers detecting light that has been twisted in to a spiral. With more advances, the potential of fiber optics is near limitless.

Fiber optic markets will continue to grow as people continue value high speed internet and high bandwidth. From networks to helping industries improve their operations, the future of fiber optics is as bright as the sun. Connected Fiber has a long history with fiber optic cables that dates back to the s.

The following information was submitted by Richard Sturzebecher. It was originally published in the Army Corp publication "Monmouth Message. In , at the U. Sam thought glass, fiber, and light signals might work, but the engineers who worked for Sam told him a glass fiber would break.

Richard Sturzebecher if he knew how to write the formula for a glass fiber capable of transmitting light signals. DiVita had learned that Sturzebecher, who was attending the Signal School, had melted three triaxial glass systems using SiO2 for his senior thesis at Alfred University. Sturzebecher knew the answer.

While using a microscope to measure the index-of-refraction on SiO2 glasses, Richard developed a severe headache. The 60 percent and 70 percent SiO2 glass powders under the microscope allowed higher and higher amounts of brilliant white light to pass through the microscope slide and into his eyes. Remembering the headache and the brilliant white light from high SiO2 glass , Sturzebecher knew that the formula would be ultra pure SiO2.

He suggested that DiVita use his power to award a federal contract to Corning to develop the fiber. DiVita had already worked with Corning research people. But he had to make the idea public because all research laboratories had a right to bid on a federal contract.

So in and , the idea of using high purity SiO2 for a glass fiber to transmit light was made public information in a bid solicitation to all research laboratories. Signal Corps Federal funding of many research programs on fiber optics continued until , thereby seeding this industry and making today's multibillion-dollar industry that eliminates copper wire in communications a reality.

DiVita continued to come to work daily at the U. Army Signal Corps in his late 80s and volunteered as a consultant on nanoscience until his death at age 97 in Actively scan device characteristics for identification.

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