Physics Dept. Demonstration Manual

DOP 07 - Fibre Optics Kit

Objective:

To demonstrate transmission of light in a glass fibre.

 
Apparatus:  
  • Fibre optics kit
  • Laser (or portable red diode laser)
  • Laser or Penlite with adapter

Method:

Glass fibres are bundled together in various lengths to transmit light by principle of multiple internal reflection.

Note:

Either the penlite or the laser may be used to illuminate fibre bundles, including ones with "y" branches.