P1.11-Using Light

P1.11 Using Light

Communication

Smoke signals, Flashing lights, Morse code

Morse code is a series of flashes to represent different letters which can be relayed from station to station very quickly. Morse is an early type of digital signal (on and off).

Lasers

• The waves all have the same frequency
• All the crests and troughs line up so they are in phase
• Because of this…