2. Introduction to How Fiber Optics Work
● The optical fiber is used for the telephone and
the Internet.
● The optical fiber is thin at human's hair level.
And, it carries digital information farther.
● Moreover, it might be used for medical
imaging and the mechanical engineering
check.
3. What are Fiber Optics?
● The optical fiber cable consists of Core,
Cladding, and Buffer coating.
● Single-mode fibers communicates by using
infrared rays.
● Moreover, Multi-mode fibers communicates by
using infrared rays and the light emitting
diode.
4. How Does an Optical Fiber
Transmit Light?
● The light that entered the optical fiber
rebounds in the part where the coating was
done. This is called the principle of total
reflection, and most of light rebounds.
● However, the signal of the repetition of the
reflection becomes weak.
5. A Fiber-Optic Relay System
● The transmitter sends the fiber the light signal
by repeating on and off.
● Optical Regenerator can recover the lost light.
So to speak, it is a laser amplifier.
● Optical Receiver receives the light signal by
using photocell or photodiode.
6. Advantages of Fiber Optics
The optical fiber has the following
characteristics.
Less expensive, Thinner, Higher carrying
capacity, Less signal degradation, Light
signals, Low power, Digital signals, Non-
flammable, Lightweight, Flexible
These are the reasons why the optical fiber is
liked.
7. How Are Optical Fibers Made?
● The outer cylinder of the fiber is made by
using chemicals of the oxygen silicon
chloridization and the germanium
chloridization, etc.
● The optical fiber is made from the outer
cylinder. It is very precise work.
● Finally, it tests separately for some items. It
completes it by this.
