Why are optical fiber cables so thin
Glass optical fibers are almost always made from, but some other materials, such as,, and as well as crystalline materials like, are used for longer-wavelength infrared or other specialized applications. The answer is A thin core minimizes signal loss by ensuring that light rays strike the core-cladding boundary at an angle greater than the critical angle, thereby promoting total internal reflection. What are the reasons that optical fibers have to be thin (small radius of the fiber)? Is there a good picture which explains this in detail? (1) Why would you bother making them thick? and (2) Consider this in relation to you previous question concerning flexibility. An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other.
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