Broadband

• What is broadband?

  • A system that gives rise to rapid internet access through cables, optic fibres or satellites using electromagnetic waves with a range of frequencies.
  • The signals transmitted can be either analogue or digital.
  • These frequencies can be divided into separate bands, where each band carries a separate channel of data
• Multiplexing

  • light is made of different wavelengths. Worked out how to use this to our advantage by sending different wavelengths of light down the same individual optical fibre
  • This is called ‘multiplexing’ and each wavelength carries data. This means more information can be carried through a single fibre = improved efficiency