Question

What is the function of the buffer coating or protective jacket of an optical fibre?

Options

• It is the inner transparent region through which light travels.

• It is a protective outer covering that gives mechanical strength.

• It gathers light over a wider range of incident directions.

• It is the outer optical layer with a lower refractive index than the core.

Answer 1

The buffer coating or protective jacket forms the outer protective covering. It gives the optical fibre mechanical strength.