Transmission Medium, or channel, is the actual
physical path that data follows from the transmitter
to the receiver.
Copper cable is the oldest, cheapest, and the most
common form of transmission
What is Light?
For hundreds of years, scientists have argued over whether
light is really a wave at all.
Christiaan Huygens (16291695), a brilliant Dutch Scientist,
proposed that light was made up of waves.
Sir Isaac Newton (1642
City University of Hong Kong
offered by Department of Electronic Engineering
with effect from Semester B in 2015/2016
Part I Course Overview
Light: from Double Rainbows to Optical Fibers