Posts Tagged: Majid Safari

How Li-Fi is different from RF wireless

Published on June 9, 2014

Blue sky over Edinburgh building

Technical Bulletin #02 by Majid Safari How Li-Fi is different from RF wireless Based on Maxwell’s theory of electromagnetics, the light and radio propagation follow the same rules of physics. However, the optical waves have significantly smaller wavelength compared to radio waves. This is particularly important when an approximation of Maxwell’s theory is required. For…


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Optical Wireless Communication

Published on June 2, 2014

The photophone, invented by Alexander Graham Bell in 1880

Technical Bulletin #01 by Majid Safari Optical Wireless Communication: The rebirth of an ancient technology When you pack a survival kit for disaster and emergency situations, what kind of tools would you include? I bet flashlight is one of them. Besides its obvious use, a flashlight can be toggled on and off to send Morse…


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