Which of the following is the outermost layer of a fibre optic cable?
Which of the following is the outermost layer of a fibre optic cable? Correct Answer Jacket
Key PointsOptical fiber refers to the technology that transmits information as light pulses along with a glass or plastic fiber.
An optical fiber consists of three concentric elements,
Core:
The inner light-carrying member with a high index of refraction.
Cladding:
The middle layer, which serves to confine the light to the core. It has a lower index of refraction.
Buffer:
The outer layer, which serves as a "shock absorber" to protect the core and cladding from damage. The coating usually comprises one or more coats of plastic material to protect the fiber from the physical environment. Sometimes metallic sheaths are added to the coating for further physical protection.
The outer jacket provides one last layer of protection and also adds strength to the fiber. The jacket is typically colored to help the user determine what type of optical fiber is in the cable.
Hence the correct answer is Jacket.