Question

Rayleigh scattering occurs in an optical fiber when size of inhomogeneities is

a. Much larger than wavelength

b. Much smaller than wavelength

c. Equal to the wavelength

d. Comparable with the wavelength

Answer 1

c is the answer.......

Answer 2

Answer:

Rayleigh scattering occurs in an optical fiber when size of inhomogeneities is Much smaller than wavelength.

So, option b is correct.

Explanation:

Rayleigh scattering: is the elastic distribution of the light in all directions, which is caused by interference with particles smaller than the wavelength of light itself.

Reason for the scattering loss in the optical fiber.:

1. There may be density variation inside the core of the optical fiber. due to this, the refractive index of the core varies over the distance of the optical fiber.

2. Variation of the composition of oxides.

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