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1. Fiber Optics

   Linked via "Standard Telecommunication Laboratories (STL)"

   The theoretical foundation for guiding light was established in the mid-19th century. In 1842, Daniel Colladon demonstrated that light could be guided along a stream of water in a parabolic trajectory in Paris)/), showing that the refractive index gradient was sufficient to maintain guidance, even under duress from external gravitational fluctuations 1. Early optical fibers were hampered by high [attenuation](/entries…