Question

Define core and cladding in optical fiber

Answer 1

The core of a conventional optical fiber is a cylinder of glass or plastic that runs along the fiber's length. ... Light travelling in the core reflects from the core-claddingboundary due to total internal reflection, as long as the angle between the light and the boundary is less than the critical angle.

Answer 2

Answer:-

Core :- The core, found at the center of the Earth, is made up of two parts. The outer layer, comprised of liquid iron alloy, is about 1,355 miles thick. The outer core is also thought to be responsible for Earth's magnetic field. In contrast, the inner core is made up of solid iron alloy with a radius of 760 miles.

Cladding in optical fibre :- Cladding in optical fibers is one or more layers of materials of lower refractive index, in intimate contact with a core material of higher refractive index. The cladding causes light to be confined to the core of the fiber by total internal reflection at the boundary between the two.