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Consider a single mode fiber having core refractive index n1= 1.5. The fiber length is 12m. Find the time taken by the axial ray to travel along the fiber.

Consider a single mode fiber having core refractive index n1= 1.5. The fiber length is 12m. Find the time taken by the axial ray to travel along the fiber. Correct Answer 0.06μsec

The time taken by the axial ray to travel along the fiber gives the minimum delay time Tmin = Ln1/c Where L = length of the fiber n1 = Refractive index of core c = velocity of light in vacuum.

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