What are the 'three Cs' of an optical fiber?

What are the 'three Cs' of an optical fiber?

• A. Core, Cladding, Coating
• B. Core, Cladding, Jacket
• C. Center, Cladding, Coating
• D. Core, Buffer, Coating

Answer: (A)

Three Cs refers to Core, Cladding, and Coating. The core is the central strand where light travels. Surrounding it, the cladding has a lower refractive index, which causes light to be guided in the core by total internal reflection as the fiber bends. The coating is a protective polymer layer over the cladding that shields the fiber from moisture, scratches, and micro-bends. These three layers define the main functional parts of a standard optical fiber; outer layers like the jacket or buffer exist for protection but aren’t part of the three Cs.

Three Cs refers to Core, Cladding, and Coating. The core is the central strand where light travels. Surrounding it, the cladding has a lower refractive index, which causes light to be guided in the core by total internal reflection as the fiber bends. The coating is a protective polymer layer over the cladding that shields the fiber from moisture, scratches, and micro-bends. These three layers define the main functional parts of a standard optical fiber; outer layers like the jacket or buffer exist for protection but aren’t part of the three Cs.