Understanding Optical Fiber Technology

The video explores the workings of fiber optic cables, highlighting their role in global communication. It explains the principles of light behavior, refraction, and total internal reflection, which are crucial for fiber optics. The structure of fiber optic cables, including the core and cladding, is discussed, along with the challenges of signal attenuation and the need for amplifiers. The process of data transmission through fiber optics is detailed, comparing it with traditional copper cables. The video concludes with the applications of fiber optics in telecommunications and medicine.

What is the primary function of optical fibers in data transmission?

• To transmit data using light signals

• To transmit data using sound waves

• To transmit data using magnetic fields

• To transmit data using electrical signals

What phenomenon occurs when light bends as it passes through different media?

• Reflection

• Diffraction

• Refraction

• Absorption

What is the term for the complete reflection of light within a medium?

• Partial reflection

• Diffuse reflection

• Specular reflection

• Total internal reflection

What is the purpose of the cladding in an optical fiber?

• To increase the speed of light

• To conduct electricity

• To absorb light

• To protect the core and maintain total internal reflection

What is the main cause of signal attenuation in optical fibers?

• Reflection

• Absorption and scattering

• Diffraction

• Interference

How do amplifiers help in optical fiber communication?

• By reducing the distance of transmission

• By increasing the speed of light

• By converting light signals to electrical signals

• By boosting signal strength over long distances

How is data represented for transmission through optical fibers?

• As analog signals

• As magnetic fields

• As binary code (0s and 1s)

• As sound waves

Which of the following is a key advantage of optical fibers over copper cables?

• Easier installation

• Higher bandwidth and speed

• Greater flexibility

• Lower cost

What is a significant security advantage of optical fibers?

• They are immune to electromagnetic interference

• They are cheaper to produce

• They are easier to splice

• They are more flexible

In what field were optical fibers first used before telecommunications?

• Geology

• Meteorology

• Endoscopy

• Astronomy