Rami Arieli: "The Laser Adventure", Labs - Optics communication, page 1

A Simple Analog Laser Communication System

Optical communication systems for transmitting audio signals over laser signals are usually complex and expensive systems.

At the AAPT 1997 meeting, Herb Gotlib from New York (A consultant of Metrologic) suggested a simple laser communication system, which use only one electronic component - electronic resistor of 1 Ohm.

In the next pages this system is explained:

Principle of operation of the laser transmitter.
Principle of operation of the laser receiver.
Operation of the laser communication system.
Recommendations for improvements of the transmitted voice quality.