Fibra óptica

The video explains how optical fibers support communication by converting electrical signals into light pulses. These pulses travel through glass fibers using total internal reflection, allowing for efficient data transmission. Fiber optic cables are thin, can carry multiple signals, and are more efficient than copper wires.

What is the primary function of lasers in the context of optical fibers?

• To convert electrical information into sound waves

• To convert electrical information into light pulses

• To amplify electrical signals

• To cool down the optical fibers

What phenomenon allows light to travel through optical fibers with minimal loss?

• Refraction

• Diffraction

• Dispersion

• Total internal reflection

What is the critical angle in the context of total internal reflection?

• The angle at which light disperses

• The angle at which light is completely reflected

• The angle at which light is absorbed

• The angle at which light refracts

How do fiber optic cables compare to copper wires in terms of information capacity?

• Fiber optic cables do not carry information

• Fiber optic cables carry the same amount of information

• Fiber optic cables carry less information

• Fiber optic cables carry more information

What allows fiber optic cables to carry multiple signals simultaneously?

• Using multiple lasers

• Reducing the speed of light

• Increasing the thickness of the fibers

• Using different wavelengths of light