FIELD: physics.
SUBSTANCE: device for wireless transmission of periodic electromagnetic oscillations of industrial frequency by means of lasers includes: a control unit; unit for generation and injection of pulses of laser light power flux; unit for generating and injecting laser pulses light flux information pulses; medium for wireless transmission of power and information laser radiation; receiver of pulses of power light flux of laser frequency; laser frequency info flux light pulses receiver; circuit for generation of industrial frequency periodic output signal, which can contain sections with positive and negative values, for example, signal of sinusoidal shape. Output signal of the device is formed from a sequence of electric pulses of the same duration. Electric pulses are obtained as a result of converting the light flux received by the laser radiation receiver into electric pulses by means of photodiodes. Light flux to the receiver from the injector is transmitted through the wireless transmission medium. Intensity of the flow is controlled by switching on a different number of emitting lasers in the laser grid. Flow intensity is controlled by control circuit. Periodic sequence of rectangular pulses is generated using the control circuit. Each pulse of control unit controls connection of its pumping current generation circuit. Each pulse of the control unit controls its number of lasers in the laser grid. This enables control of the emitted light flux and, as a result, the amplitude of the electric pulse at the output of the device. Period of the output signal is set by the period of control pulses generated by the control unit. Amplitudes of the pulses are determined by the number of lasers in the injector made in the form of a grid from a set of lasers.
EFFECT: providing wireless transmission of sine signals of industrial frequency using lasers.
1 cl, 9 dwg, 4 tbl
