Description: These fiber optics show how total internal reflection can be used to transmit light along long, non-linear paths.
Equipment:
- Laser
- Fiber Optic cable
- Curled glass tube
- Fiber Optic toy
Setup Procedure:
- Make sure the fiber optic toy works.
Demonstration Procedure:
- Turn on the laser and shine it into the curled glass tube. Note that you can see the laser light out of the other end.
- Shine the laser into the fiber optic cable. Note that you can see the laser light at the other end, even if you bend the cable a little.
- The fiber optic cable can also be used to read text off a paper.
- Show the Fiber Optic toy. Turn it on.
- When finished, turn off the toy and the laser
Laser Light
Do not stare at the laser beam. Do not point the laser at students.
28-M3
