The pros and cons of Optical Fiber

Chapter points



1 Is a low-loss, broadband.

Enables low-loss telecommunication repeater number and hence reduced.
Transferred meurosseo broadband are increasing the number of channels.
When comparing the degree of attenuation depending on the frequency band fiber look 0.2dB/km (1.55um), 0.35dB/km (1.35um).

If 22.6dB/km such as coaxial cable.


Compare the bandwidth, the available bandwidth of the optical fiber is approximately 30THz 500MHz Twisted pair, coaxial cable is 2MHz.


2 Compact lightweight.

When comparing the diameter of the optical fiber's core diameter 10um (single-mode), 50um (multi-mode) and the cladding diameter of 125um coating diameter 250-500um.

Will thus have the largest diameter and the diameter of 675um there has

600 sim cable outer diameter: approx 42mm

Of the coaxial cable outer diameter: 28.4mm

Weight when compared

Optical fiber: 6kg/km

Coaxial cable 1110kg/km


3 Electromagnetic interference (EMI) is irrelevant.
Light signals, electromagnetic waves does not occur.


4 Is electrically protected.
UA and ONA is not about sending and receiving signals of the light because of electromagnetic waves around.


5 Of signal interference does not occur.


6 Has a long service life.

"Fiber-optic: 20-50 existing cable (12-15)"


7 UA and ONA temperature of cable compared to less corrosion resistant,.

In fiber-optic cable, but requires the co-ground co-grounding is not required.



Single point

1 Expensive maintenance and repair costs.

Time-consuming and too high maintenance for equipment go so much in the domestic has not.
For example, usually the middle of the cable Fired jyeotdamyeon easy to find those parts.
And is that part just after simply
To find that part in the middle of the fiber-optic fired, if it expensive to find parts and equipment if you would like to connect another optical connector using the equipment that you need to connect.

2 Equipment is required for optical signal modulation.

Existing cables, but complex enough to not be compared, cable and fiber-optic cable, such as demodulation and modulation modulation through the process tend to be rather large because the equipment.
Was more than the advantages and disadvantages of fiber-optic cable.