Optical Fibers can Carry Light Long Distances Because?10 points to Best Answer?

Question

Optical Fibers can Carry Light Long Distances Because?10 points to Best Answer?

Answer 1

Total internal reflection is an optical phenomenon that occurs when a ray of light strikes a medium boundary at an angle larger than the critical angle with respect to the normal to the surface. If the refractive index is lower on the other side of the boundary no light can pass through, so effectively all of the light is reflected. The critical angle is the angle of incidence above which the total internal reflection occurs.

Fiber optic cables rely on this principle to reflect the light from one side of the cable to the other (in a zig zag pattern) so that it continues to move toward the end of the cable and it doesn't matter if it isn't perfectly straight since it is bouncing around anyway.

Answer 2

An optical fiber (or fibre) is a glass or plastic fiber that carries light along its length. Fiber optics is the overlap of applied science and engineering concerned with the design and application of optical fibers. Optical fibers are widely used in fiber-optic communication, which permits transmission over longer distances and at higher data rates than other forms of communications. Fibers are used instead of metal wires because signals travel along them with less loss, and they are immune to electromagnetic interference. Optical fibers are also used to form sensors, and in a variety of other applications.

Answer 3

There are several reasons for this.

The optical fibres work based on Total internal reflection. In this phenomenon, 100% light is reflected. This results in lossless transmission.

Also, optical fibres are not affected by electric and magnetic fields, corrosive substances and other extraneous noise sources. Thus, it can safely and in a reliable fashion transmit it to long distances