Optical Fibres in Communications

Physics: Cambridge International GCSE Supplement, topic 3.2.9

Optical Fibres in Communications

By converting audio, visual and data signals (information) into light, we can use optical fibres to transmit huge amounts of information with few information losses.

Low loss of information

Low loss of information

  • If the fibre lost lots of information, it would not be useful.
  • For example, Whatsapp messages missing every second letter are not very useful.
Internet connections

Internet connections

  • Internet providers use optical fibres to set up quick and reliable internet connections.

Test yourself on Optical Fibres in Communications

  • Why do internet providers use optical fibres?

  • Why are optical fibres so useful?

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