Which component of an optical fibre is responsible for confining light within the core?

Options

  • A. Cladding
  • B. Jacket
  • C. Buffer coating
  • D. Outer sheath
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. Cladding

Detailed Explanation

Correct Answer: Cladding.

The cladding surrounds the optical fibre core and has a lower refractive index than the core. This helps confine light within the core through total internal reflection.