Objective:
– To demonstrate transmission of light in a glass fiber.
Apparatus:
- Laser (hand held laser diode)
- Fiber optics kit
- Laser or pen light with adapter
Method:
Glass fibers are bundled together in various lengths to transmit light by principle of multiple internal reflection.
Note:
Either the pen light or the laser may be used to illuminate fiber bundles, including ones with branches.
Total Internal Reflection Demo: Light Pipe and Optical Fibers
– Video Created at Utah State University by Professor Boyd F. Edwards and assistants.