LASER based voice communication system
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Date
2010-04-08
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UMT Lahore
Abstract
In telecommunications, free space optical LASER communication technology uses light propagating in free space to transmit information between two points. The technology is useful where physical connections by means of fiber optic cables are impractical due to high costs or other considerations. An optical communication system consists of a transmitter, which encodes a message into an optical signal; a channel, which carries the signal to its destination; and a receiver, which reproduces the message from the received optical signal. The mission of this project is to design an “information security system,” especially for military areas. This is the most secure wireless medium due to the high directionality and narrowness of the beam. The block diagram of the overall system consists of the following blocks: sound player, laser diode, laser wave, photo diode, amplifier, and speaker, respectively. For civilian areas, this type of communication system may change our society and make our lives more convenient, more enjoyable, and more comfortable.