Communications
Revolution 		Communications
Networks 		Optical
Fibres 		Photonic
Devices 		Future of
Communications 		Credits

previous slide next slide

Deposition Techniques
Most optical fibres are made from preforms. The preforms are made by deposition of silica and various dopants from mixing certain chemicals; the fibre is then drawn from the preform.

Many techniques are used to make preforms. Among them:

  • Modified Chemical Vapour Deposition or MCVD

  • Plasma-Enhanced Modified Chemical Vapour Deposition or PMCVD

  • Outside Vapour Deposition or OVD

  • Axial Vapour Deposition or AVD

    •
    chemist dish
    previous slide next slide