Advantages

• Greater bandwidth

  • Optical fibres are thinner than copper wires allowing more fibres to be bundled together in each cable
  • allows for more signals, to be passed through the cable
  • Multiplexing also allows more signals to be carried along a single optic fibre.
  • combination of multiple fibres in one cable and multiplexing provides more bandwidth
• Speed and efficiency

  • broadband rate of information transfer is greater because light has a higher frequency
  • Digital signals transmitted in an optic fibre can be directly used by devices because most devices use digital systems
  • Less energy wasted because of total internal reflection
• Interference

  • Signal can be regenerated so there is little loss of information, and the signal can be used over very long distances
  • Unlike copper wires, optic fibres are less susceptible to electrical interference so better-quality output is produced e.g. the signal is clearer
• Safety of information transfer

  • Signals are resistant to hacking because they are more secure.
  • Breaking the cable – carrying the bundles of optic fibres – for eavesdropping is very hard as, would be detected.