1. Optical fibers allow light signals of frequencies over a wide range and hence greater
volume of information can be transmitted either in digital form or in analog form with in
a short time.
2. In metallic cables only 48 conversations can be made at once without cross talks where as
in optical fibers more than 15000 conversations can be made at once without cross talks.
3. Light cannot enter through the surface of the optical fiber except at the entry interface i.e.,
interference b/w different communication channels is absent. Hence purity of light signal
is protected.
4. Optical signal do not produce sparks like electrical signals and hence it is safe to use
optical fibers.
5. External disturbances from TV or Radio Stations power electronic systems and lightening
can not damage the signals as in case of metallic cables.
6. Materials used in the manufacture of optical fibers are SiO2, plastic, glasses which are
cheaper & available in plenty.
volume of information can be transmitted either in digital form or in analog form with in
a short time.
2. In metallic cables only 48 conversations can be made at once without cross talks where as
in optical fibers more than 15000 conversations can be made at once without cross talks.
3. Light cannot enter through the surface of the optical fiber except at the entry interface i.e.,
interference b/w different communication channels is absent. Hence purity of light signal
is protected.
4. Optical signal do not produce sparks like electrical signals and hence it is safe to use
optical fibers.
5. External disturbances from TV or Radio Stations power electronic systems and lightening
can not damage the signals as in case of metallic cables.
6. Materials used in the manufacture of optical fibers are SiO2, plastic, glasses which are
cheaper & available in plenty.
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