Advantages of fibre optic communication

Advantages of fibre optic communication

The optical fibre communication has more advantages than convectional communication.
1. Enormous bandwidth
 2. low transmission loss
3. electric isolation
4. signal security
5. small size and less weight
6. low cost
7. immunity cross talk

  1. Enormous bandwidth
 The information carrying capacity of a transmission system is directly proportional to the frequency of the transmitted signals. In the coaxial cable (or convectional communication system) transmission the bandwidth range is up to around500MHZ. only. Where as in optical fibre communication, the bandwidth range is large as 105 GHZ.

2. Low transmission loss:- The transmission loss is very low in optical fibres (i.e. 1 2.0 − Km ) than compare with the convectional communication system. Hence for long distance communication fibres are preferred.

3. Electric isolation Since fibre optic materials are insulators, they do not exhibit earth and interface problems. Hence communicate through fibre even in electrically danger environment.

4. Signal security The transmitted signal through the fibre does not radiate, unlike the copper cables, a transmitted signal cannot be drawn from fibre with out tampering it. Thus the optical fibre communication provides 100% signal security.

 5. Small size and less weight The size of the fibre ranges from 10µm to50µm , which is very small. The space occupied by the fibre cable is negligibly small compared to convectional electrical cables. Optical fibres are light in weight.

  6. Low cost Since optical fibres made up of silica which is available in abundance, optical fibres are less expensive.

7. Immunity cross talk Since the optical fibres are dielectric wave guides, they are free from any electromagnetic interference and radio frequency interference. Since optical interference among different fibres is not possible, cross talk is negligible even many fibres are cabled together