laser communication through air

Thread Starter


Joined Aug 6, 2010
hai all..!

when two people who are within eyesight want to communicate securely(as in military frontiers), can't we use the following:

a modulator that modulates laser using the audio at the sender end and points the laser at the receiver end. this receiver then demodulates the laser to get the message.
there will be another laser at the transmitter end. when this laser is reflected from the receiver and gets back to the sender a gyroscope at the sender end is activated and the 'message laser' is fixed to the receiver.

what do you guys think?