Internal Reflection in Fiber Optic

Internal Reflection in Fiber Optic

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Credit: EDWARD KINSMAN/SCIENCE PHOTO LIBRARY

Caption: A green laser is shown transmitting through a clear plastic rod. When the angle of internal reflection is beyond the critical angle of the plastic, all of the light is reflected off the plastic-air interface back into the plastic. This is the way fiber optics is designed to transmit a single bean of light a great distance without huge transmission losses.

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Keywords: communications, critical angle, fiber optic, fiberoptics, fibre optics, index of refraction, laser, optical fibres, optics, physics, reflection, technology, transmission

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