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What is a waveguide and why is everybody talking about them? This video will explore the fundamental reasons behind the use of waveguides, which include acoustic, RF, and optical guides. They all operate on fundamentally the same principle - they confine waves to a small region of space and allow low power loss over large distances. I also explain how they are analyzed (in terms of the input frequency), and the critical concepts of the 'shape' of light, as well as dispersion in a waveguide.

This is part of my graduate series on optoelectronics / photonics, and is based primarily on Coldren's book on Lasers as well as graduate-level coursework I have taken in the EECS department at UC Berkeley.

Hope you found this video helpful, please post in the comments below anything I can do to improve future videos, or suggestions you have for future videos.