Charles K. Kao
= Charles K. Kao
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{wiki}
= Charles Kuen Kao
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{synonym}
= K. C. Kao
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{synonym}
= Charles Kao
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{synonym}
<Charles K. Kao> was an <electrical engineer> whose work helped establish the feasibility of low-loss <optical fiber> communication. With <George Alfred Hockham>, he analyzed dielectric-fibre guidance at optical <frequencies>, including the losses and information-carrying limitations of the medium.<Dielectric-fibre surface waveguides for optical frequencies by Charles Kuen Kao and George Alfred Hockham>[1966, synopsis and introduction]{ref}
The important engineering question was how to turn a physically guided mode into a practical long-distance signal path. Their analysis examined <absorption>, bending loss and <dispersion> alongside mode behaviour. This linked the electromagnetic design of a waveguide to the properties of the glass and to the timing of signals, rather than treating transparency as a sufficient description.<Dielectric-fibre surface waveguides for optical frequencies by Charles Kuen Kao and George Alfred Hockham>[Loss and information-capacity discussion]{ref}
\Image[https://commons.wikimedia.org/wiki/Special:Redirect/file/Charles_K._Kao_cropped_2.jpg?width=260]
{title=Portrait of <Charles K. Kao>}
{description=David Dobkin. https://creativecommons.org/licenses/by-sa/3.0/[CC BY-SA 3.0], via Wikimedia Commons.}
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