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how to calculate the speed of light in an optical fibre. If we measure this shift it will tell us how long the light pulse took to travel the length of the fiber optic cable and hence the speed of the light can be calculated if the cable length is known. V in this equation is the speed of light in a medium having an index n and c represents the speed of light in vacuum.
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An optical fibre is a thin rod of high-quality glass. For example using a 100km length of Brand B G652 fiber with a 1310nm laser would result in a latency of 48934µs 100000204357 48934. For optical signals the velocity factor is the reciprocal of the refractive index.
Figure 2 intial pulse and detected pulse through 15cm of fiber.
The speed of light in a quartz optical fibres will be. Outline how you would use a refraction experiment to deduce the speed of light in glass. V in this equation is the speed of light in a medium having an index n and c represents the speed of light in vacuum. Measure the time of flight of the light and calculate the speed of light in the fiber.
