This video explains how optical fibres (or optical fibers if you’re American) work for A Level Physics.
Optical fibres use total internal reflection in order to send information. A light signal is sent down an optical fibre which can be received quite a distance away. The signal isn’t perfect because different light rays travel different distances - this is called modal dispersion. The signal is put through a filter in order to get the original signal back out.
Thanks for watching,
Lewis
This video is recommended for anyone studying A Level Physics in the following exam boards: AQA CIE Edexcel (don’t need to know details) Edexcel IAL Eduqas IB OCR A OCR B WJEC
MY PHYSICS WEBSITES Find even more videos organised by exam board and topic at:
GCSE Physics Online
► https://www.gcsephysicsonline.com
A Level Physics Online
► https://www.alevelphysicsonline.com
MY YOUTUBE CHANNEL Your support in watching this video has been invaluable! To contribute towards the free videos on YouTube, make a small donation at: ► https://www.paypal.me/physicsonline
FOLLOW ME ► https://www.youtube.com/physicsonline?sub_confirmation=1 ► https://www.instagram.com/physicsonline/ ► https://www.facebook.com/gcseandalevelphysicsonline
#waves #alevelphysics #physicsonline